Supporting cutting edge research and development with advanced materials to your needs.
High performance materials for extreme conditions.
Innovative and lightweight materials with high mechanical properties and durability.
Materials used in chemical engineering from consumables to innovative solutions.
Advanced materials characterized by high electrical or insulation performance.
High quality materials for renewable energy.
Biocompatible and biodegradable materials to the highest standards.
High purity, biocompatible materials for high performance devices and applications.
High purity materials and crucibles suitable to your needs.
State of the art materials for the next generation of technologies.
High performance materials for extreme conditions.
Durable materials for corrosive environments.
Foils, disks or windows across a range of materials to facilitate innovation.
Polymers, metal foils, and sustainable materials for your packaging needs.
Our 170,000+ range of products can cater to all your research needs.
A variety of specialist materials to support space technology needs.
Highest quality materials including graphite and lithium compounds.
High purity materials to benefit your evaporation processes.
Thin, alkali-free, borosilicate glass for LCD displays to electronic packaging applications.
Ground-breaking graphene-based nanocomposites for regenerative medicine to R&D.
An industry-leading polyimide foil by DuPont™.
A high-performance para-aramid fiber revolutionizing materials science.
A machinable glass ceramic material offering higher performance, reliability, and durability.
This versatile polyester thin film by DuPont™.
It has excellent heat and flame-resistant properties from DuPont™.
A ceramic that addresses the traditional issues of brittleness, fragility, and hardness.
This range of high purity alumina (HPA) powders has exceptional purity levels, making it one of the purest forms of alumina commercially available.
This high temperature insulation material has exceptional properties and versatile applications.
This transparent, heat resistant polyolefin resin has unique properties for a range of applications.
Skip to Content
Currency
Toggle Nav
Formula: Fe64/Ni36
Form: Foil
Material: Invar®
Commodity: Alloys
Hazard Pictogram:
GHS07,GHS08
Invar® Foils are part of Goodfellow’s wide range of metal foils. Invar® alloy contains nickel and iron, giving it low thermal expansion properties. Invar® Foils are used in applications that require dimensional stability like precision instruments, optical assemblies and aircraft components. With 163 variations available, the ability to tailor the thermal expansion properties of these foils makes them an ideal choice for reducing thermal stresses and strains in sensitive devices and assemblies.
Health hazard/Hazardous to the ozone layer
Serious health hazard
Tolerances
Foil
| Thickness | <0.01mm | ±25% |
|---|---|---|
| Thickness | 0.01mm - 0.05mm | ±25% |
| Thickness | >0.05mm | ±10% |
Material Properties for Alloys
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Brinell | 160 |
| Elongation at break( % ) | 45 |
| Modulus of elasticity( GPa ) | 140-150 |
| Tensile strength( MPa ) | 450-590 |
Electrical Properties
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 75-85 |
Magnetic Properties
| Element | Value |
|---|---|
| Curie temperature( C ) | 279 |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 1427 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 515@23°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 13@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 1.7-2@20-90°C |
Physical Properties
| Element | Value |
|---|---|
| Density( gcm⁻³ ) | 8 |
Other Customers Purchased
-
6-4 Plate Titanium Foil (Light Tight) Grade: 6-4 Plate
Formula: Ti
Thickness: 25mm
Length 1: 278mm
Length 2: 278mm
CAS Number: 7440-32-6
UOM Code: 929-338-86
eachStarting at £0.00
Discounts applied for volume purchases -
Selenium Foil (Light Tight) Formula: Se
Percentage Purity: 99.95%
Thickness: 3mm
Length 1: 25mm
Length 2: 25mm
CAS Number: 7782-49-2
UOM Code: 663-952-12
eachStarting at £1,032.37
Discounts applied for volume purchases -
Tin/Lead/Silver Alloy Foil (Light Tight) (Sn62/Pb36/Ag2) Formula: Sn62/Pb36/Ag2
Temper: As Rolled
Thickness: 0.5mm
Length 1: 15mm
Length 2: 15mm
UOM Code: 986-630-91
eachStarting at £208.39
Discounts applied for volume purchases -
Tungsten/Copper Alloy Foil (Light Tight) (W 80/Cu20) Formula: W 80/Cu20
Thickness: 3mm
Length 1: 100mm
Length 2: 100mm
UOM Code: 473-210-07
eachStarting at £255.95
Discounts applied for volume purchases -
Platinum/Rhodium Alloy Foil (Light Tight) (Pt60/Rh40) Formula: Pt60/Rh40
Temper: As Rolled
Thickness: 0.125mm
Length 1: 25mm
Length 2: 25mm
UOM Code: 742-121-52
eachStarting at £2,690.94
Discounts applied for volume purchases -
Terbium Foil (Light Tight) Formula: Tb
Percentage Purity: 93%
Temper: As Rolled
Thickness: 0.6mm
Length 1: 50mm
Length 2: 50mm
UOM Code: 436-560-65
eachStarting at £0.00
Discounts applied for volume purchases
