Alloy 201 is a commercially pure Nickel with a maximum carbon level of 0.02%. This provides highly ductile mechanical properties across a wide temperature range. It provides corrosion resistance in neutral to moderately reducing environments. It provides high thermal and electrical conductivity in comparison to nickel-base alloys, stainless and low alloy steels. Because of its low carbon content, Nickel 201 may be considered for service above 600 °F (316 °C), where alloy 200 with higher carbon content is not recommended. Nickel 201 is ferromagnetic.
Typical chemical properties:
Nickel + Cobalt: 99.99 min
Manganese: 0.35 max
Carbon: 0.02 max
Iron: 0.40 max
Silicon: 0.35 max
Sulfur: 0.010 max
Copper: 0.25 max
Physical properties:
Density: 0.322 lbs/in3, 8.90 g/cm3
Melting Range: 2615 – 2535 ° F (1435 – 1445 °C)
Mechanical properties:
Elastic modulus
207 GPa at 20 °C
Elongation
40 % at 20 °C in 2 in.
Hardness, Rockwell B
80 [-] at 20 °C
Tensile strength
449 MPa at 20 °C
Yield strength
138 MPa at 20 °C