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AISI 304 Stainless Steel Disk
Available Configurations
Properties common to all products in this list
Key Features
AISI 304 Stainless Steel Disk (UNS S30400) is a precision-cut austenitic stainless steel component in the 18% chromium-8-10% nickel alloy system, offering corrosion resistance, mechanical stability, and surface cleanability in a ready-to-use circular geometry:
Reliable Structural Performance (Tensile Strength 500-700 MPa)
With a density of 8.0 g/cm³, tensile strength of 500-700 MPa, and elongation of approximately 40%, AISI 304 Disk delivers reliable structural performance alongside the characteristic work-hardening behavior of fully austenitic stainless steel.
Essentially Non-Magnetic Annealed Condition
The essentially non-magnetic annealed condition supports applications where magnetic interference must be minimized, while resistance to corrosion in natural and low-chloride environments suits a broad range of hygienic and chemical applications.
Surface Cleanability
Surface cleanability is a defining characteristic of AISI 304 Disk, supporting hygienic applications and substrate use in coating and surface modification trials where surface quality directly affects process outcomes.
Broad Suitability Across Hygienic, Chemical & Engineering Applications
AISI 304 Disk suits a broad range of hygienic, chemical, and general engineering applications, including forming blanks, sealing components, and precision spacers, owing to its well-balanced property set.
Ready-to-Use Circular Geometry
Supplied as a ready-to-use circular geometry, AISI 304 Disk provides dimensional consistency for direct integration into sealing components, substrate disks, and precision spacers without further machining.
Industrial Applications
AISI 304 Stainless Steel Disk is used across hygienic, chemical, and general engineering sectors where corrosion resistance, mechanical stability, and surface cleanability must be combined in a precision circular form:
- ✦ Forming Blanks
- Used as forming blanks where reliable structural performance and predictable work-hardening behavior support consistent outcomes in subsequent forming operations.
- ✦ Sealing Components
- Used as sealing components, where resistance to corrosion in natural and low-chloride environments combined with dimensional stability ensures reliable long-term sealing performance.
- ✦ Substrate Disks for Coating & Surface Modification Trials
- Applied as substrate disks for coating and surface modification trials, where surface cleanability and the disk's essentially non-magnetic annealed condition provide a consistent, well-characterized testing platform.
- ✦ Precision Spacers
- Used as precision spacers in general engineering applications, where dimensional stability and the disk's ready-to-use circular geometry support direct integration into assemblies without further machining.
- ✦ Corrosion Immersion & Electrochemical Characterization Research
- Extensively used as standardised test specimens for corrosion immersion studies, electrochemical characterization, hardness and tribological testing, and thin-film deposition work where a traceable, dimensionally consistent platform is required.
Material Properties
| Element | Value |
|---|---|
| Hardness - Brinell | 160-190 |
| Elongation at break( % ) | <60 |
| Modulus of elasticity( GPa ) | 190-210 |
| Izod impact strength( J m⁻¹ ) | 20-136 |
| Tensile strength( MPa ) | 460-1100 |
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 70-72 |
| Element | Value |
|---|---|
| Melting point( C ) | 1400-1455 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 16.3@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 18@20-100°C |
| Element | Value |
|---|---|
| Density( gcm⁻³ ) | 7.93 |
Tolerances
| Thickness | <0.01mm | ±25% |
|---|---|---|
| Thickness | 0.01mm - 0.05mm | ±15% |
| Thickness | >0.05mm | ±10% |
| Diameter | ±0.5mm |