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Nickel 201 is the low-carbon version of Nickel 200. Typical applications are caustic evaporators, combustion boats, platter bars and electronic components. Nickel 201, because of its low base hardness and lower work-hardening rate, is particularly suited for spinning and cold forming. It is preferred to Nickel 200 for applications involving exposure to temperatures above 600°F (315°C).
| Weight % | Ni (+Co) | Cu | Fe | Mn | C | Si | S |
|---|---|---|---|---|---|---|---|
| Typical Composition | 99.00 min | 0.25 max | 0.40 max | 0.35 max | 0.02 max | 0.35 max | 0.01 max |
| Characteristics | English | Metric | |
|---|---|---|---|
| Nominal density | 20°C / 68°F | 0.321 lbs/in3 | 8.89 g/cm3 |
| Melting range | 2615-2635 °F | 1435-1445 °C | |
| Specific heat | 25°C / 78°F | 0.109 BTU/lb – °F | 456 J/KG- °K |
| Average coefficient of
thermal expansion |
100°C / 148°F | 7.3 micro in/in- °F | 13.2 micro m/m- °K |
| 200°C / 328°F | 7.7 micro in/in- °F | 13.9 micro m/m- °K | |
| 300°C / 508°F | 8.0 micro in/in- °F | 14.4 micro m/m- °K | |
| 400°C / 688°F | 8.3 micro in/in- °F | 14.9 micro m/m- °K | |
| Thermal conductivity | 100°C / 148°F | 42.4 BTU/ft- hr – °F | 73.4 W/m – °K |
| 200°C / 328°F | 38.3 BTU/ft- hr – °F | 66.3 W/m – °K | |
| 300°C / 508°F | 34.6 BTU/ft- hr – °F | 59.9 W/m – °K | |
| 400°C / 688°F | 32.4 BTU/ft- hr – °F | 56.1 W/m – °K | |
| Electrical resistivity | 20°C / 68°F | 95 nΩ ∙ m | |
| 200°C / 328°F | 175 nΩ ∙ m | ||
| 400°C / 688°F | 330 nΩ ∙ m | ||
| 600°C / 1048°F | 405 nΩ ∙ m | ||
| Form | Tensile | Hardness | ||||
|---|---|---|---|---|---|---|
| Ultimate | Yield | Elongation in 50 mm (2 in.) | Rockwell B | |||
| KSI | MPa | KSI | MPa | % | ||
| Spring | 90-130 | 620-895 | 70-115 | 480-795 | 15-2 | 95 min |
| Annealed | 55-75 | 380-520 | 15-30 | 105-210 | 55-40 | 70 max |
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