The Most Complete Stainless Steel Range for Research & Development
Stainless steels are defined by a minimum chromium content of 10.5%, which enables the formation of a self-healing passive oxide layer that resists corrosion across an exceptional range of temperatures and chemical environments. From the workhorse 18/8 austenitic grades to high-molybdenum superaustenitics, titanium-stabilized creep-resistant grades, nitrogen-enhanced pitting-resistant alloys, martensitic high-hardness steels, and two-phase duplex grades, the stainless steel family spans one of the widest performance envelopes of any metallic material class.
Goodfellow has developed one of the most complete research-grade stainless steel portfolios available from a single supplier — 33 grades spanning all five microstructural families, available in wire, foil, sheet, rod, tube, powder, and custom-cut forms. Every product is dispatched from stock, fully certified, and traceable to its heat.
Unlike commodity steel distributors who serve high-volume OEM customers, Goodfellow is built for researchers, engineers, and prototype teams who need small, precise quantities delivered fast, without minimum order penalties, and backed by complete material documentation.
Five Stainless Steel Families — One Supplier
All stainless steels belong to one of five microstructural families, each with a characteristic balance of corrosion resistance, strength, formability, and temperature capability. Understanding which family your application falls into is the first step in selecting the right grade.
The largest and most widely used stainless steel family - contains at least 16% Cr and 6% Ni. Face-centered cubic (FCC) microstructure stabilized by nickel, manganese, or nitrogen. Non-magnetic in the annealed condition (may develop a slight magnetic response on cold working). Excellent formability, weldability, and corrosion resistance. Grades range from standard 18/8 compositions (304) to high-temperature, ultra-low-carbon, high-molybdenum, and nitrogen-strengthened variants.
These are plain chromium (10.5 to 18 %) grades such as Grade 430 and 409. Comparatively they have moderate corrosion resistance and lower fabrication properties. Body-centered cubic (BCC) microstructure. Lower nickel content than austenitic grades, making them more cost-effective. Magnetic, with good oxidation resistance and resistance to stress corrosion cracking. Moderate formability; weldability requires care to avoid embrittlement. Well-suited to automotive exhaust, appliance, and moderate-temperature industrial applications.
Martensitic stainless steels are based on the addition of chromium as the major alloying element but with a higher Carbon and generally lower chromium content (e.g., 12 % in Grade 410 and 416) than the ferritic types. Body-centered tetragonal (BCT) microstructure formed by quench hardening. Highest hardness and strength of the standard stainless steel families. Magnetic. Lower corrosion resistance than austenitic grades but excellent wear resistance and the ability to be heat-treated to precise hardness levels. Used in cutting tools, bearings, surgical instruments, and high-stress mechanical components.
Duplex stainless steels are characterized by their two-phase microstructure (austenite + ferrite). Therefore, Duplex stainless steels combine some of the characteristics from each class. Higher strength than standard austenitic grades and significantly improved resistance to stress corrosion cracking (SCC) in chloride environments. PREN values of 35+ (Duplex) and 40+ (Super Duplex) make them the premier choice for aggressive marine, offshore, and chemical processing environments. Magnetic.
These are chromium- and nickel-containing stainless steels with potentially very high tensile strengths. Precipitation-hardening stainless steels offer a combination of fabricability, strength, ease of heat treatment, and corrosion resistance unfound in any other class of material. Achieve ultra-high strength through age-hardening heat treatment — without sacrificing the corrosion resistance that defines the stainless steel family. Tensile strengths exceeding 1,300 MPa are achievable. Used extensively in aerospace structural components, high-performance shafts, and precision tooling where both strength and corrosion resistance are non-negotiable.
Grade Comparison — Find the Right Stainless Steel Quickly
| Grade | Composition (wt%) | PREN | Mechanical properties | Max. service temp. (°C) |
Key trait | Typical use | |||
|---|---|---|---|---|---|---|---|---|---|
| Cr | Ni | Mo | 0.2% Proof (MPa) |
Tensile Str. (MPa) |
|||||
|
AISI 301
AusteniticS30100
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17 | 7 | — | 17 | 205 | 515 | 870 | Work Hardens High work-hardening rate; strength doubles with cold work | Rail cars, aircraft, springs, fasteners |
|
AISI 302
AusteniticS30200
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18 | 8 | — | 18 | 205 | 515 | 870 | All-Round 18/8 Slightly higher C than 304; good balance for wire and springs | Springs, wire, cookware |
|
AISI 303
AusteniticS30300
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18 | 9 | — | 18 | 205 | 515 | 870 | Free-Machining S/Se addition; easiest to machine of the 300 series | Turned parts, fittings, bolts, gears |
|
AISI 304
AusteniticS30400
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18 | 10 | — | 18 | 205 | 515 | 870 | Industry Baseline Universal 18/8 grade; most widely specified stainless steel worldwide | Food equipment, chemical vessels, architecture, automotive trim |
|
AISI 304L
AusteniticS30403
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18 | 10 | — | 18 | 170 | 485 | 870 | Low Carbon C ≤0.030%; weld without post-weld anneal in most service conditions | Welded vessels, nuclear, cryogenic structures |
|
AISI 309
AusteniticS30900
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22.5 | 13 | — | 23 | 205 | 515 | 980 | 980°C Continuous 23% Cr / 13% Ni; superior oxidation resistance vs 304 and 316 | Furnace parts, heat exchangers, automotive catalyst substrates |
|
AISI 309S
AusteniticS30908
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22.3 | 12.3 | — | 23 | 351† | 670† | 980 | Weldable HT Grade Low-C variant of 309; preferred for welded high-temp fabrications | Welded furnace assemblies, conveyor systems, refractory supports |
|
AISI 310
AusteniticS31000
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25 | 20 | — | 25 | 292† | 617† | 1100 | 1100°C Max 25% Cr / 20% Ni; max creep strength of standard austenitics | Radiant tubes, retorts, burner components, furnace trays |
|
AISI 310H
AusteniticS31009
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25 | 20.5 | — | 25 | 205 | 515 | 1100 | Creep Optimized High-C variant; superior load-bearing above 700°C; C 0.04–0.10% | Pressure vessels, load-bearing high-temp structures |
|
AISI 310S
AusteniticS31008
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25 | 20.5 | — | 25 | 314† | 624† | 1100 | Weldable 1100°C Low-C 310; C ≤0.08%; superior weldability for fabricated high-temp assemblies | Furnaces, annealing equipment, kilns, high-temp chemical processing |
|
AISI 316
AusteniticS31600
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18 | 10 | 3.0 | 28 | 205 | 515 | 870 | Chloride Resistant Mo addition (3%); PREN 28; marine and chemical process standard | Marine, pharma, chemical process, medical implants |
|
AISI 316L
AusteniticS31603
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18 | 10 | 3.0 | 28 | 170 | 485 | 870 | Low Carbon C ≤0.030%; weldable without sensitization risk; nuclear and cryogenic standard | Cryogenic, nuclear, welded chemical plant |
|
AISI 317L
AusteniticS31703
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19 | 13 | 3.5 | 29 | 205 | 515 | 870 | PREN 29 3.1% Mo typical; meaningful step-up from 316L in chloride service | Chemical processing, oil & gas, pulp & paper, pollution control |
|
AISI 317LMN
AusteniticS31726
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19 | 13 | 4.5 | 36 | 310† | 620† | 870 | Highest PREN 4–5% Mo + N 0.10–0.20%; highest pitting resistance of standard austenitics | Aggressive chemical/acid processing, pharmaceutical, desalination |
|
AISI 321
AusteniticS32100
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18 | 9 | — | 18 | 205 | 515 | 870 | Ti-Stabilized Ti ≥5 × C; resists sensitization in welded assemblies to ~870°C | Exhaust systems, aircraft skin, chemical processing, boiler components |
|
AISI 347
AusteniticS34700
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18 | 10 | — | 18 | 205 | 515 | 870 | Nb-Stabilized Nb ≥10 × C; prevents sensitization; broadly equivalent to 321 | Aircraft exhaust manifolds, chemical equipment, high-temp pressure vessels |
|
AISI 347H
AusteniticS34709
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18 | 11 | — | 18 | 220† | 515–690† | 870 | Creep Resistant Controlled C 0.04–0.10%; superior creep rupture at 550–850°C | Superheater tubes, fired heater tubes, ammonia converters, reactor vessels |
|
Nitronic® 40
AusteniticS21900
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21 | 6 | — | 24 | 380 | 690 | 870 | 2× Yield vs 304 High-Mn (8–10%) + N-alloyed; non-magnetic; cryogenic rated | Cryogenic fasteners, marine, seawater handling, medical |
|
Nitronic® 60
AusteniticS21800
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17 | 8.5 | — | 19 | 345 | 690 | 870 | Galling Resistant Si 3.5–4.5%; outstanding wear resistance and self-lubricating effect | Valves, fasteners, pump wear rings, bushings, food processing |
|
AISI 409
FerriticS40900
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11.7 | 0.3 | — | 12 | 170 | 380 | 800 | Budget Ferritic Entry-level Cr-only grade; lowest cost stainless in the range | Automotive exhaust systems, heat shields, agricultural equipment |
|
AISI 410S
FerriticS41008
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12.5 | — | — | 13 | 205 | 415 | 705 | Weldable Ferritic Low-C 410; C ≤0.08%; ferritic; not hardenable | Heat exchanger tubing, petroleum refinery equipment |
|
AISI 430
FerriticS43000
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17 | — | — | 17 | 205 | 450 | 870 | Decorative Ferritic No nickel; magnetic; SCC resistant | Appliance trim, automotive trim, catering equipment, architecture |
|
AISI 430F
FerriticS43020
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17 | — | — | 17 | 205 | 450 | 760 | Free-Machining S addition; best-machining ferritic grade | Automatic screw machine parts, fittings, decorative hardware |
|
AISI 410
MartensiticS41000
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12.5 | — | — | 13 | 620‡ | 795‡ | 650 | Heat Treatable Annealed: YS 275 / TS 480 MPa; hardened+tempered to ~795 MPa TS | Valve components, pump parts, turbine blades, fasteners |
|
AISI 416
MartensiticS41600
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13 | — | — | 13 | 585‡ | 760‡ | 650 | Free-Machining Best machinability of any martensitic grade | High-volume turned parts, shafts, solenoid components |
|
AISI 420
MartensiticS42000
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13.0 | — | — | 13 | 1380‡ | 1580‡ | 650 | 50–58 HRC Annealed TS ~515 MPa; hardened to >50 HRC | Cutlery, surgical instruments, mould tooling, bearings |
|
AISI 431
MartensiticS43100
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16 | 2 | — | 16 | 655‡ | 862‡ | 650 | Best Corr. / Hardenable Highest corrosion resistance of all martensitic grades | Marine propeller shafts, aerospace fasteners, pump shafts |
|
AISI 440C
MartensiticS44004
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17 | — | — | 17 | 1900‡ | 1970‡ | 480 | 57–60 HRC Highest hardness of any standard stainless; annealed TS ~740 MPa | Ball bearings, valve seats, surgical instruments, mould steel |
|
Duplex (2205)
DuplexS31803 / S32205
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22 | 5.5 | 3.0 | 35 | 450 | 620 | 300 | PREN ~35 Dual-phase austenite-ferrite; N 0.08–0.20%; twice yield of 316L; SCC resistant | Offshore oil & gas, desalination, pulp & paper, chemical tankers |
|
Super Duplex (2507)
DuplexS32750 / S32760
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25 | 7 | 4.0 | 43 | 550 | 800 | 300 | PREN ~43 N 0.24–0.32%; maximum pitting and SCC resistance for severe chloride service | Subsea equipment, heat exchangers, FGD systems, marine fasteners |
|
15-7PH
PHS15700
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15 | 7 | 2.25 | 22 | 1170§ | 1310§ | 315 | Ultra-High Strength Semi-austenitic PH; H900; Al 0.75–1.5%; age-hardenable | Aircraft components, springs, precision instruments |
|
17-4PH
PHS17400
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17 | 4 | — | 17 | 1170§ | 1310§ | 315 | Most Versatile PH 17% Cr, 4% Ni + Cu 3–5%; H900 to H1150 conditions available | Aerospace fasteners, shafts, nuclear waste casks, medical |
|
17-7PH
PHS17700
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17 | 7 | — | 17 | 1310§ | 1380§ | 315 | Fatigue Resistant Semi-austenitic; CH900 condition; highest-strength standard PH grade | Springs, diaphragms, bellows, aerospace structural parts |
PREN = %Cr + 3.3 × %Mo + 16 × %N (nominal composition). Max. service temp. = continuous oxidizing atmosphere (guide values). Mechanical data: annealed/solution-treated (ASTM A240 / EN 10088 minimums) except † typical mill data; ‡ hardened + tempered 150–315 °C (ASTM A276); § H900 / CH900 peak-aged condition. Consult individual datasheets for specification-critical applications.
Available in Every Form Your Process Requires
- Wires
- Foils, Sheets & Plates
- Rods, Tubes & Bars
- Powders
- Disks
- Spheres
- Foams
- Gauzes/Meshes
- Washers
- Non-woven Fabrics
- Custom-cut shapes - on request
Stainless Steel Across Critical Industries
Power Generation
Steam turbines, superheaters, furnaces, and thermal processing equipment demand materials with documented creep rupture data, reliable long-term mechanical performance at temperatures between 500°C and 1100°C, and resistance to oxidation and carburisation.
AISI 347H is a benchmark creep-resistant grade for superheater tubing and pressure vessels in power stations and oil refineries, with creep rupture data to 100,000 hours at temperatures up to 700°C.
The 310 family (310, 310H, 310S) provides the highest oxidation resistance and structural stability in the standard austenitic range, with continuous service capability to approximately 1100°C. 309 and 309S are widely used in furnace conveyor systems, radiant tubes, and thermal cycling applications at temperatures up to ~980°C.
Chemical Processing
The chemical and pharmaceutical industries require materials that resist a broad spectrum of aggressive media: concentrated acids, chloride solutions, mixed organic solvents, and sterilisation environments.
Molybdenum-bearing grades 316L, 317L, and 317LMN are the primary selection for process vessels, piping, and reactor internals. 317LMN — with 4–5% Mo and nitrogen addition — offers the highest pitting resistance among standard austenitics (PREN ~32–34) and is the preferred grade for aggressive acid service in pharmaceutical and fine-chemical production.
Free-machining grade 303 and precision-machined 416 support high-volume component production where surface finish and dimensional control are paramount.
Aerospace & Defense
Stainless steels for aerospace demand a precise balance of strength-to-weight ratio, corrosion resistance, and reliable performance under cyclic and extreme loading.
Precipitation-hardening grades — 17-4PH, 17-7PH, and 15-7PH — provide tensile strengths exceeding 1,300 MPa with good corrosion performance, making them the standard choice for structural fasteners, actuator components, and precision shafts.
Austenitic grades 321 and 347 are used extensively for exhaust assemblies and engine components requiring resistance to sensitization at elevated temperatures.
Medical Devices
Biocompatibility, cleanability, and resistance to sterilisation media define stainless steel selection for medical devices.
AISI 316L is the dominant implant and surgical instrument grade, combining good corrosion resistance with well-characterized biocompatibility.
AISI 420 and 440C are used for surgical cutting instruments and instruments requiring high hardness.
Research applications — from implantable prototype testing to surgical tool development — benefit from Goodfellow's ability to supply certified research quantities in precise dimensions, accompanied by full material documentation.
Oil & Gas
Subsea and topside environments expose materials to chloride-laden water, H₂S, and elevated pressures.
Super Duplex (2507) and Duplex (2205) grades provide the highest resistance to stress corrosion cracking and pitting in these conditions, with yield strengths approximately twice that of 316L.
For heat exchanger and process vessel applications operating under moderate corrosion, 316L, 317L, and 317LMN provide a cost-effective step up in performance.
Stabilized grades 347H and 321 are specified for fired heater tubes and superheaters requiring long-term creep integrity.
Research & Development
University research groups, national laboratories, and R&D teams require materials in small, precisely characterized quantities with full traceability — at the prototype stage, before scale-up commitments are made.
Goodfellow has supplied research institutions and industrial R&D teams with stainless steel samples, foils, wires, and powder grades for over six decades.
Our stock holding supports same-week dispatch of virtually every grade in the range, with no minimum order quantities, making us the natural partner for materials characterisation, testing programs, and early-stage manufacturing trials.
From Raw Material to Finished Component
Once you’ve identified the right stainless steel grade, our Goodfellow Microfabrication team can take your material to a finished component — specializing in laser microfabrication, precision cutting, and micro-scale processing.
- Laser-cut foil and sheet components
- Precision stencils and filters
- Microfluidic components
- Custom-geometry samples for testing and characterization
- Prototype medical device components
Verify your material against specification before it goes into service. Our Suisse TP laboratory provides comprehensive testing and characterization for all stainless steel grades.
- Mechanical testing (tensile, hardness, impact, creep)
- Chemical composition analysis (OES, ICP)
- Corrosion testing (salt spray, pitting, intergranular)
- Microstructural analysis (SEM/EDX, optical metallography)
- Full certificate of conformity and material traceability reports
Tell us what you need and we’ll supply it — from a single research sample to a scaled production run, with no minimum order at any stage.
- Custom sheet and foil dimensions
- Non-standard rod diameters and lengths
- Tight-tolerance wire diameters
- Specific surface finish requirements
- High-volume supply for scale-up from prototype
Order your stainless steel grade, have it precision-cut by Goodfellow Microfabrication, and validated by Suisse TP — all through a single Goodfellow relationship.
Why Goodfellow Stainless Steel
- Specialist Grades: Non-commodity steel grades available in stock
- Precision Manufacturing: Over 75 years of expertise in material processing
- Customization: Products tailored to your exact specifications
- Technical Support: Expert advice on grade selection and application
- Quality Assurance: Full certification and traceability
- No Minimum Order: Flexibility to meet your needs, whether large or small
- Free Delivery Worldwide: Shipping within 48-72 hours and custom clearance
Popular Stainless Steel Products
- AISI 410S Stainless Steel Rod Weldable low-carbon ferritic rod with good toughness and moderate corrosion resistance. Suitable for structural and magnetic applications in mild environments.each
Starting at £0.00
In stockDiscounts applied for volume purchasesWeldable low-carbon ferritic rod with good toughness and moderate corrosion resistance. Suitable for structural and magnetic applications in mild environments. - AISI 347H Stainless Steel Rod Nb-stabilised SS rod (515–690 MPa) for superheater tubes, fired-heater tubing & ammonia converters — 166 MPa creep rupture at 600 °C / 10,000 hours.each
Starting at £0.00
In stockDiscounts applied for volume purchasesNb-stabilised SS rod (515–690 MPa) for superheater tubes, fired-heater tubing & ammonia converters — 166 MPa creep rupture at 600 °C / 10,000 hours. - AISI 317LMN Stainless Steel Rod High-Mo, N-enhanced low-C SS rod (620 MPa, 310 MPa yield) for acid evaporators, chloride heat exchangers & FGD equipment — pitting resistance beyond 317L.each
Starting at £0.00
In stockDiscounts applied for volume purchasesHigh-Mo, N-enhanced low-C SS rod (620 MPa, 310 MPa yield) for acid evaporators, chloride heat exchangers & FGD equipment — pitting resistance beyond 317L. - AISI 310S Stainless Steel Rod Low-C 24–26% Cr, 19–22% Ni SS rod (624 MPa, 314 MPa yield) for furnace rollers & heat-treatment fixtures — weld-stable without sensitisation risk to 1100 °C.each
Starting at £0.00
In stockDiscounts applied for volume purchasesLow-C 24–26% Cr, 19–22% Ni SS rod (624 MPa, 314 MPa yield) for furnace rollers & heat-treatment fixtures — weld-stable without sensitisation risk to 1100 °C. - AISI 310H Stainless Steel Rod High-C 24–26% Cr, 19–22% Ni SS rod for superheater tubes, boiler components & cracking furnace internals — maximum creep & stress-rupture strength to 1100 °C.each
Starting at £0.00
In stockDiscounts applied for volume purchasesHigh-C 24–26% Cr, 19–22% Ni SS rod for superheater tubes, boiler components & cracking furnace internals — maximum creep & stress-rupture strength to 1100 °C. - AISI 309 Stainless Steel Rod 22–24% Cr, 12–15% Ni SS rod (621 MPa, 290 MPa yield) for furnace rollers, radiant tube hangers & high-temperature fixture components in chemical processing.each
Starting at £0.00
In stockDiscounts applied for volume purchases22–24% Cr, 12–15% Ni SS rod (621 MPa, 290 MPa yield) for furnace rollers, radiant tube hangers & high-temperature fixture components in chemical processing. - AISI 410S Stainless Steel Foil Low-carbon ferritic foil with improved weldability and reduced hardening. Offers moderate corrosion resistance and good performance up to ~700°C.each
Starting at £0.00
In stockDiscounts applied for volume purchasesLow-carbon ferritic foil with improved weldability and reduced hardening. Offers moderate corrosion resistance and good performance up to ~700°C. - AISI 409 Stainless Steel Foil Ferritic stainless steel foil with good oxidation resistance and high thermal conductivity. Cost-effective solution for automotive and moderate-temperature applications.each
Starting at £0.00
In stockDiscounts applied for volume purchasesFerritic stainless steel foil with good oxidation resistance and high thermal conductivity. Cost-effective solution for automotive and moderate-temperature applications. - AISI 317L Stainless Steel Foil Mo-alloyed low-C SS foil (PRE ~28, 220–240 MPa yield) for acid heat exchangers, FGD components & pulp/paper equipment — pitting resistance beyond 316L.each
Starting at £0.00
In stockDiscounts applied for volume purchasesMo-alloyed low-C SS foil (PRE ~28, 220–240 MPa yield) for acid heat exchangers, FGD components & pulp/paper equipment — pitting resistance beyond 316L. - AISI 309S Stainless Steel Foil Low-C 22–24% Cr, 12–15% Ni SS foil (670 MPa, 1.0–2.0 mm) for furnace mesh, heat-treatment baskets & radiant tube supports — weld-stable, no sensitisation risk.each
Starting at £0.00
In stockDiscounts applied for volume purchasesLow-C 22–24% Cr, 12–15% Ni SS foil (670 MPa, 1.0–2.0 mm) for furnace mesh, heat-treatment baskets & radiant tube supports — weld-stable, no sensitisation risk. - AISI 309 Stainless Steel Foil 22–24% Cr, 12–15% Ni SS foil (621 MPa, 1.0–2.0 mm) for furnace linings, heat-treatment retorts, hot acid resistance & sulphur-bearing combustion environments.each
Starting at £207.16
In stockDiscounts applied for volume purchases22–24% Cr, 12–15% Ni SS foil (621 MPa, 1.0–2.0 mm) for furnace linings, heat-treatment retorts, hot acid resistance & sulphur-bearing combustion environments. - AISI 301 Stainless Steel Disk AISI 301 stainless steel disk is a metastable austenitic alloy offering high tensile strength, corrosion resistance, and strain-induced martensitic transformation, supporting springs, clamping disks, vibration-resistant interfaces, and fatigue and TRIP behavior research.each
Starting at £102.00
In stockDiscounts applied for volume purchasesAISI 301 stainless steel disk is a metastable austenitic alloy offering high tensile strength, corrosion resistance, and strain-induced martensitic transformation, supporting springs, clamping disks, vibration-resistant interfaces, and fatigue and TRIP behavior research. - AISI 316 Stainless Steel Foam AISI 316 stainless steel foam provides high porosity, low density, and corrosion resistance, supporting biomedical scaffolds, filtration, catalysis, and energy absorption research.each
Starting at £241.00
In stockDiscounts applied for volume purchasesAISI 316 stainless steel foam provides high porosity, low density, and corrosion resistance, supporting biomedical scaffolds, filtration, catalysis, and energy absorption research. - Ion Implanted AISI 316 Stainless Steel Disk Ion-implanted AISI 316 stainless steel disk features enhanced surface hardness, wear resistance, and corrosion performance for biomedical, nuclear, and chemical applications.each
Starting at £102.00
In stockDiscounts applied for volume purchasesIon-implanted AISI 316 stainless steel disk features enhanced surface hardness, wear resistance, and corrosion performance for biomedical, nuclear, and chemical applications. - AISI 416 Stainless Steel Rod AISI 416 stainless steel rod offers free-machining performance with good strength and corrosion resistance, supporting precision shafts, valves, fasteners, and machinability research.each
Starting at £108.00
In stockDiscounts applied for volume purchasesAISI 416 stainless steel rod offers free-machining performance with good strength and corrosion resistance, supporting precision shafts, valves, fasteners, and machinability research. - Nitronic® 60 Stainless Steel Rod Nitronic 60 stainless steel rod provides wear and galling resistance, oxidation stability, and high strength for valve stems, anti‑seize fasteners, bushings, pump hardware, and research components operating under heat, vibration, or poor lubrication.each
Starting at £209.00
In stockDiscounts applied for volume purchasesNitronic 60 stainless steel rod provides wear and galling resistance, oxidation stability, and high strength for valve stems, anti‑seize fasteners, bushings, pump hardware, and research components operating under heat, vibration, or poor lubrication. - AISI 316 Stainless Steel Twill Dutch Gauze AISI 316 stainless steel twill dutch gauze provides fine filtration and corrosion resistance, supporting petrochemical processing, pharmaceuticals, and separation research.each
Starting at £219.00
In stockDiscounts applied for volume purchasesAISI 316 stainless steel twill dutch gauze provides fine filtration and corrosion resistance, supporting petrochemical processing, pharmaceuticals, and separation research. - AISI 410 Stainless Steel Foil AISI 410 stainless steel foil delivers high strength, wear resistance, and moderate corrosion resistance, supporting catalyst carriers, shims, exhaust components, and phase transformation research.each
Starting at £206.00
In stockDiscounts applied for volume purchasesAISI 410 stainless steel foil delivers high strength, wear resistance, and moderate corrosion resistance, supporting catalyst carriers, shims, exhaust components, and phase transformation research. - AISI 316L Stainless Steel Disk AISI 316L stainless steel disk offers corrosion resistance and strength in harsh environments, supporting valve seats, vacuum assemblies, tribology studies, and AM qualification.each
Starting at £102.00
In stockDiscounts applied for volume purchasesAISI 316L stainless steel disk offers corrosion resistance and strength in harsh environments, supporting valve seats, vacuum assemblies, tribology studies, and AM qualification. - AISI 316 Stainless Steel Coil AISI 316 stainless steel coil offers corrosion resistance and thermal stability, supporting instrumentation, heat exchangers, filtration systems, and cleanroom applications.each
Starting at £182.00
In stockDiscounts applied for volume purchasesAISI 316 stainless steel coil offers corrosion resistance and thermal stability, supporting instrumentation, heat exchangers, filtration systems, and cleanroom applications. - AISI 304 Stainless Steel Disk 18Cr–10Ni SS disk (8 g/cm³, 500–700 MPa) for corrosion immersion, electrochemical characterisation, tribological testing, thin-film deposition & forming blanks.each
Starting at £101.00
In stockDiscounts applied for volume purchases18Cr–10Ni SS disk (8 g/cm³, 500–700 MPa) for corrosion immersion, electrochemical characterisation, tribological testing, thin-film deposition & forming blanks. - AISI 316 Stainless Steel Foil (Light Tight) AISI 316 stainless steel foil (light tight) provides optical opacity, corrosion resistance, and mechanical integrity, supporting radiation shielding, photonic packaging, and fusion research.each
Starting at £178.00
In stockDiscounts applied for volume purchasesAISI 316 stainless steel foil (light tight) provides optical opacity, corrosion resistance, and mechanical integrity, supporting radiation shielding, photonic packaging, and fusion research. - AISI 304 Stainless Steel Foil 18Cr–10Ni SS foil (0.1–1.0 mm, 500–700 MPa, to 925 °C) for food-contact packaging, automotive shielding, chemical plant lining & clean-area components.each
Starting at £148.00
In stockDiscounts applied for volume purchases18Cr–10Ni SS foil (0.1–1.0 mm, 500–700 MPa, to 925 °C) for food-contact packaging, automotive shielding, chemical plant lining & clean-area components. - AISI 302 Stainless Steel Foil AISI 302 stainless steel foil delivers corrosion resistance, tensile strength, and ductility in thin format, supporting shielding layers, diaphragms, flexible displays, and extreme-environment laminate research.each
Starting at £130.00
In stockDiscounts applied for volume purchasesAISI 302 stainless steel foil delivers corrosion resistance, tensile strength, and ductility in thin format, supporting shielding layers, diaphragms, flexible displays, and extreme-environment laminate research. - AISI 304 Stainless Steel Powder 18Cr–10Ni SS powder for sintering, MIM, thermal spraying & laser powder bed fusion — corrosion-resistant AM components with good ductility & machinability.each
Starting at £182.00
In stockDiscounts applied for volume purchases18Cr–10Ni SS powder for sintering, MIM, thermal spraying & laser powder bed fusion — corrosion-resistant AM components with good ductility & machinability. - AISI 316L Stainless Steel Tube AISI 316L stainless steel tube offers low-carbon corrosion resistance, weldability, and durability in aggressive environments, supporting bioprocess piping, offshore structures, heat exchangers, and corrosion research.each
Starting at £109.00
In stockDiscounts applied for volume purchasesAISI 316L stainless steel tube offers low-carbon corrosion resistance, weldability, and durability in aggressive environments, supporting bioprocess piping, offshore structures, heat exchangers, and corrosion research. - AISI 420 Stainless Steel Rod AISI 420 stainless steel rod delivers high hardness and strength after heat treatment, supporting shafts, surgical tools, fixtures, and advanced machining and AM research.each
Starting at £123.00
In stockDiscounts applied for volume purchasesAISI 420 stainless steel rod delivers high hardness and strength after heat treatment, supporting shafts, surgical tools, fixtures, and advanced machining and AM research. - AISI 430 Stainless Steel Coil AISI 430 stainless steel coil provides oxidation resistance, formability, and soft magnetic properties, supporting appliances, automotive trim, magnetic components, and alloy optimization research.each
Starting at £237.00
In stockDiscounts applied for volume purchasesAISI 430 stainless steel coil provides oxidation resistance, formability, and soft magnetic properties, supporting appliances, automotive trim, magnetic components, and alloy optimization research. - Duplex Stainless Steel Foil (Light Tight) Duplex stainless steel foil (light tight) delivers corrosion resistance, mechanical strength, and complete light blocking for optical shielding, offshore sensors, and chemical processing barriers.each
Starting at £169.00
In stockDiscounts applied for volume purchasesDuplex stainless steel foil (light tight) delivers corrosion resistance, mechanical strength, and complete light blocking for optical shielding, offshore sensors, and chemical processing barriers. - AISI 316L Stainless Steel Spherical Powder AISI 316L stainless steel spherical powder provides high flowability, uniform morphology, and corrosion resistance, supporting additive manufacturing, metal injection molding, thermal spray coatings, and cryogenic performance research.each
Starting at £165.00
In stockDiscounts applied for volume purchasesAISI 316L stainless steel spherical powder provides high flowability, uniform morphology, and corrosion resistance, supporting additive manufacturing, metal injection molding, thermal spray coatings, and cryogenic performance research. - AISI 440C Stainless Steel Spherical Powder AISI 440C stainless steel spherical powder delivers high hardness, wear resistance, and good corrosion performance, supporting bearings, cutting tools, MIM, and additive manufacturing research.each
Starting at £134.00
In stockDiscounts applied for volume purchasesAISI 440C stainless steel spherical powder delivers high hardness, wear resistance, and good corrosion performance, supporting bearings, cutting tools, MIM, and additive manufacturing research. - Grade 100 AISI 304 Stainless Steel Balls Grade 100 AISI 304 stainless steel balls provide corrosion resistance and toughness for bearings, valves, medical devices, and precision mechanisms.each
Starting at £210.00
In stockDiscounts applied for volume purchasesGrade 100 AISI 304 stainless steel balls provide corrosion resistance and toughness for bearings, valves, medical devices, and precision mechanisms. - 15-7PH Stainless Steel Foil 15-7PH stainless steel foil offers high strength-to-weight ratio, corrosion resistance, and thermal stability, supporting aerospace, automotive, electronics, and research applications requiring durable thin metallic layers.each
Starting at £180.00
In stockDiscounts applied for volume purchases15-7PH stainless steel foil offers high strength-to-weight ratio, corrosion resistance, and thermal stability, supporting aerospace, automotive, electronics, and research applications requiring durable thin metallic layers. - AISI 347 Stainless Steel Coil AISI 347 stainless steel coil delivers niobium-stabilized resistance to intergranular corrosion and high-temperature creep, supporting furnace linings, heat exchangers, ducting, and oxidation research.each
Starting at £285.00
In stockDiscounts applied for volume purchasesAISI 347 stainless steel coil delivers niobium-stabilized resistance to intergranular corrosion and high-temperature creep, supporting furnace linings, heat exchangers, ducting, and oxidation research. - AISI 347 Stainless Steel Foil (Light Tight) AISI 347 stainless steel foil (light tight) combines niobium-stabilized high-temperature strength with total optical opacity, supporting OLED substrates, optical shielding, and extreme thermal barrier research.each
Starting at £140.00
In stockDiscounts applied for volume purchasesAISI 347 stainless steel foil (light tight) combines niobium-stabilized high-temperature strength with total optical opacity, supporting OLED substrates, optical shielding, and extreme thermal barrier research. - AISI 304L Stainless Steel Straight Wire AISI 304L stainless steel straight wire offers corrosion resistance and dimensional stability, supporting medical instruments, fastening systems, and cold-work research.each
Starting at £119.00
In stockDiscounts applied for volume purchasesAISI 304L stainless steel straight wire offers corrosion resistance and dimensional stability, supporting medical instruments, fastening systems, and cold-work research. - AISI 304L Stainless Steel Coil AISI 304L stainless steel coil offers low carbon content, corrosion resistance, and formability, supporting hygienic process equipment, marine cladding, and cold-working research.each
Starting at £181.00
In stockDiscounts applied for volume purchasesAISI 304L stainless steel coil offers low carbon content, corrosion resistance, and formability, supporting hygienic process equipment, marine cladding, and cold-working research. - AISI 304L Stainless Steel Spooled Wire AISI 304L stainless steel spooled wire delivers weldability, corrosion resistance, and ductility, supporting automated welding, additive manufacturing, and fatigue research.each
Starting at £122.00
In stockDiscounts applied for volume purchasesAISI 304L stainless steel spooled wire delivers weldability, corrosion resistance, and ductility, supporting automated welding, additive manufacturing, and fatigue research. - AISI 310 Stainless Steel Foil (Light Tight) Opaque 24–26% Cr, 19–22% Ni SS foil (617 MPa) with zero light transmission — beam stops, aperture masks & detector housings in high-temperature optical systems.each
Starting at £235.00
In stockDiscounts applied for volume purchasesOpaque 24–26% Cr, 19–22% Ni SS foil (617 MPa) with zero light transmission — beam stops, aperture masks & detector housings in high-temperature optical systems. - AISI 410 Stainless Steel Foil (Light Tight) AISI 410 stainless steel foil (light tight) provides wear resistance, mechanical strength, and complete optical opacity, supporting sensor enclosures, optical shielding, catalytic chambers, and surface engineering research.each
Starting at £337.00
In stockDiscounts applied for volume purchasesAISI 410 stainless steel foil (light tight) provides wear resistance, mechanical strength, and complete optical opacity, supporting sensor enclosures, optical shielding, catalytic chambers, and surface engineering research.
Frequently Asked Questions
Can I order a single piece of stainless steel?
Yes. There is no minimum order quantity on any Goodfellow product. We supply single rods, individual foil sheets, and gram-weight powder samples as standard — at the same price and with the same full documentation as a bulk order. This applies to every grade and every form in the range.
Do you hold all 33 grades in stock?
The majority of grades are held in finished form across multiple product sizes, supporting same-week dispatch for virtually every grade in the range. Some specialist grades and custom dimensions are available to order with confirmed lead times. Contact us to check availability on any specific grade and form.
What certifications come with the material?
All stainless steel products are supplied with a Certificate of Analysis (CoA), a Technical Data Sheet (TDS), and full heat traceability. Goodfellow operates under an ISO 9001 quality management system. Additional documentation can be requested at time of order.
What is the delivery time and cost?
Standard stocked grades dispatch within 48–72 hours. Delivery is free worldwide — no minimum order value required, and customs clearance is handled on your behalf.
What forms of stainless steel does Goodfellow supply?
We stock stainless steel across a comprehensive range of product forms to suit every research and engineering application: wire, foil, sheet, plate, rod, tube, bar, powder (including spherical powder for additive manufacturing), discs, spheres/balls, foam, gauze/mesh, washers, non-woven fabric, and coils. Custom-cut shapes are also available on request. If a specific form or dimension is not listed, contact our Technical Solutions team — in most cases we can source or produce it.
Can you supply custom dimensions or surface finishes?
Yes. Our Technical Solutions team supports a broad range of material customization and processing services. Custom lengths, widths, thicknesses, diameters, and surface finishes are available on request through our Materials Customization service. We also offer in-house Cutting Services (including laser cutting), Machining Services, and Rolling and Metal Foil Production for non-standard thicknesses and tight-tolerance strip. Submit your requirements via our custom enquiry form and a technical specialist will respond within one working day.
Do you offer microfabrication or processing services?
Yes. Through our Goodfellow Microfabrication team we offer laser cutting, micro-machining, and precision fabrication of stainless steel components — including:
- Laser-cut foil and sheet parts
- Precision stencils and filters
- Microfluidic components
- Custom-geometry samples for testing and characterization
- Prototype medical device components
Through Suisse TP, our Swiss Competence Center, we provide comprehensive materials testing and characterization: mechanical testing (tensile, hardness, impact, and creep), chemical composition analysis (OES and ICP), corrosion testing (salt spray, pitting, and intergranular), and microstructural analysis (SEM/EDX and optical metallography), with full certificates of conformity and traceability reports. Both services integrate directly with our material supply capability — your stainless steel can go from raw material to precision-processed and independently tested through a single Goodfellow relationship.
Do you offer volume pricing or long-term supply arrangements?
Yes. For customers moving from prototype into production, or requiring ongoing supply, we offer a range of commercial arrangements including call-off orders, buffer stock holding, fixed and contract pricing, and volume discounts. Our Technical Solutions team can discuss the most appropriate arrangement for your project timeline and volume requirements. Even if a standard product suits your current research phase, it is worth discussing production planning early so we can help you budget for scale-up.
What stainless steel microstructural families does Goodfellow stock?
Our 33-grade range spans all five microstructural families:
- Austenitic (19 grades, including 304, 316L, 310, 321, 347H, 317LMN, Nitronic® 40, and Nitronic® 60): the largest and most widely used family; non-magnetic in the annealed condition; excellent formability, weldability, and corrosion resistance.
- Ferritic (4 grades, including 409 and 430): lower nickel content, magnetic, good oxidation resistance, well-suited to automotive and moderate-temperature applications.
- Martensitic (5 grades, including 410, 420, 440C, and 431): highest hardness and strength; heat-treatable; used in cutting tools, surgical instruments, and bearings.
- Duplex and Super Duplex (2 grades — 2205 and 2507): two-phase austenite–ferrite microstructure; twice the yield strength of 316L with outstanding resistance to stress corrosion cracking in chloride environments; PREN 35+ and 40+ respectively.
- Precipitation-hardening (3 grades: 17-4PH, 17-7PH, and 15-7PH): age-hardenable to tensile strengths exceeding 1,300 MPa; widely used in aerospace structural components and precision tooling.
I need both 310 and 310S. What's the difference?
310 and 310S share the same chromium (24–26%) and nickel (19–22%) range and are often considered interchangeable for oxidation-resistant applications up to approximately 1100°C. The key difference is carbon: 310 permits up to 0.25 wt% C, while 310S is restricted to a maximum of 0.08 wt%. 310's higher carbon provides better creep strength under sustained high-temperature loading. 310S's lower carbon makes it the preferred choice for welded assemblies where sensitization must be minimized. A third variant, 310H, is available for applications demanding maximum long-term creep rupture strength above 700°C. For most fabricated high-temperature components, 310S is the standard selection.
What is the difference between 309 and 309S?
309 and 309S share the same chromium (22–24%) and nickel (12–15%) range, providing continuous service capability to approximately 980°C. The distinction is carbon: 309S is limited to a maximum of 0.08 wt% C versus up to 0.20 wt% for 309. 309S is preferred for welded assemblies and components exposed to the sensitization temperature range (427–899°C), where the lower carbon content prevents carbide precipitation at grain boundaries. 309 offers a creep strength advantage for non-welded, load-bearing high-temperature components. Typical applications for both include furnace parts, heat exchangers, and automotive catalyst substrates.
I currently use Inconel / superalloys. Can stainless steel replace it?
For some applications, yes. 309 and 310 grades meet many high-temperature oxidation requirements at significantly lower cost than nickel superalloys, with the 310 family offering continuous service to approximately 1100°C. Where maximum oxidation resistance above 1100°C, sulfidation resistance, or very high creep duty are required, superalloys may still be necessary — but we can supply those too, across a wide range of forms and quantities. Contact our technical team for a side-by-side comparison and grade recommendation tailored to your operating conditions.
What is 317LMN and why is it different from 317L?
317LMN (UNS S31726) builds on standard 317L by increasing molybdenum to 4–5 wt% and adding a controlled nitrogen content of 0.10–0.20 wt%. The nitrogen addition raises the pitting resistance equivalent (PREN) significantly above 317L — to approximately 32–34 — and also strengthens the alloy in solid solution, giving 317LMN a meaningful strength advantage over standard low-molybdenum austenitics. It is the correct choice where aggressive acid or chloride service demands performance beyond 317L's capability, and is widely specified in pharmaceutical, fine-chemical, and desalination processing environments.
Can Goodfellow support scale-up from R&D to production volumes?
Yes. Our supply model is designed to follow projects through their full lifecycle. At the research stage we supply small, precisely characterized quantities with no minimum order and full documentation. As projects progress toward pilot and production, we can scale supply accordingly, supported by commercial arrangements such as buffer stock, call-off orders, and fixed pricing to give you cost visibility. Our Technical Solutions team can advise on grade suitability for increased volumes and flag any processing or tolerancing considerations that become relevant at production scale. We recommend discussing production planning early — even before your R&D phase is complete.
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