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Invar® Disk
Invar® disks are made from a nickel-iron alloy with a very low coefficient of thermal expansion and high strength. They’re commonly used in precision instruments and devices where dimensional stability is critical, such as optics, electronics and aerospace applications. With minimal thermal expansion, Invar allows for consistent performance across a wide temperature range. Goodfellow offers Invar® disks in a choice of sizes to suit different design requirements.
Formula: Fe64/Ni36
Thickness: 0.0125mm
Diameter: 29mm
UOM Code: 121-639-60
Cache Code: FE020215
Supplier Code: GF12163960
Thickness: 0.0125mm
Diameter: 29mm
UOM Code: 121-639-60
Cache Code: FE020215
Supplier Code: GF12163960
SKU: 1000032215
Product Code: FE02-FL-000115
Tolerances
Disk
| Thickness | >0.05mm | ±10% |
|---|---|---|
| Thickness | <0.01mm | ±25% |
| Thickness | 0.01mm - 0.05mm | ±15% |
Health hazard/Hazardous to the ozone layer
Serious health hazard
Tolerances
Disk
| Thickness | >0.05mm | ±10% |
|---|---|---|
| Thickness | <0.01mm | ±25% |
| Thickness | 0.01mm - 0.05mm | ±15% |
$131.29
each
- Buy 5 for $106.35 each and save 19%
- Buy 10 for $97.16 each and save 26%
No Minimum order
Free technical support
*Free delivery worldwide
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 |
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Tin Disk Single Crystal Formula: Sn
Percentage Purity: 99.999%
Thickness: 2mm
Diameter: 10mm
Orientation: -110
Orientation Accuracy: =< 0.4°
Polish: Polished
Surface Finish: =< 0.03µm Ra
CAS Number: 7440-31-5
UOM Code: 105-350-60
eachStarting at $1,223.52
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Nickel/Iron/Molybdenum Alloy Disk (Ni80/Fe15.5/Mo 4.5) Formula: Ni80/Fe15.5/Mo 4.5
Temper: Annealed
Thickness: 0.5mm
Diameter: 10mm
UOM Code: 712-328-62
eachStarting at $124.42
Discounts applied for volume purchases -
Invar® Tube Formula: Fe64/Ni36
Outside Diameter: 2.2mm
Wall Thickness: 0.16mm
Inside Diameter: 1.88mm
Length: 100mm
UOM Code: 041-133-24
eachStarting at $243.21
Discounts applied for volume purchases -
each
Starting at $236.82
Discounts applied for volume purchases -
Invar® Spooled Wire Formula: Fe64/Ni36
Product Shape: Spooled
Diameter: 0.6mm
Length: 10m
Temper: Annealed
UOM Code: 032-115-57
eachStarting at $213.81
Discounts applied for volume purchases -
Tungsten Disk Single Crystal Formula: W
Percentage Purity: 99.99%
Thickness: 2mm
Diameter: 10mm
Orientation: -110
Orientation Accuracy: =< 1°
Polish: Polished
Surface Finish: =< 0.03µm Ra
CAS Number: 7440-33-7
UOM Code: 100-748-47
eachStarting at $1,156.08
Discounts applied for volume purchases
