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Nickel 270 (UNS N02270/W. Nr. 2.4050) is a high- Table 1 - Limiting Chemical Composition, %
purity grade of nickel made by powder metallurgy. It
has a low base hardness and high ductility. Its extreme Nickel (Plus Cobalt) ...................................................99.9 min.
purity is useful for components of hydrogen thyratrons. Copper ......................................................................0.01 max.
It is also used for electrical resistance thermometers. Iron ............................................................................0.05 max.
Manganese .............................................................0.003 max.
Carbon ......................................................................0.02 max.
Sulfur.......................................................................0.003 max.
Titanium ..................................................................0.005 max.
Physical Constants & Thermal Magnesium .............................................................0.005 max.
Properties Silicon .....................................................................0.005 max.

Nickel 270
Table 2 - Physical Constants & Thermal Properties

Density, lb/in3 ...................................................................0.322

g/cm3 ....................................................................8.91 Typical Mechanical Properties
Melting Point, °F ...............................................................2650
°C...............................................................1454 Table 3 - Typical Mechanical Properties of Annealed Nickel
Specific Heat, Btu/lb•°F ..................................................0.110 270
J/kg•°K .......................................................460
Permeability.......................................................Ferromagnetic Tensile Strength, ksi..............................................................50
Coefficient of Expansion, 70-200°F, 10-6 in/in•°F................7.4 MPa ........................................................345
20-95°C, µm/m•°C ..................13.3 Yield Strength (0.2% Offset), ksi ..........................................16
Thermal Conductivity, Btu•in/ft2•h•°F ................................595 MPa .....................................110
W/m•°C ............................................86 Elongation, % .......................................................................50
Electrical Resistivity, ohm•circ mil/ft ....................................45
µohm•m .........................................0.075

Available Products and

Specifications
Nickel 270 is designated UNS N02270 and W. Nr.
2.4050 and is available as strip, round bar and wire.

Major specifications:
ASTM F 3

Publication Number SMC-115

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