97W-2.1Ni-0.9Fe tungsten alloy bar offers exceptionally high strength and good electrical resistivity at very high temperatures. It is used in high temperature furnaces, heating body, and heat shield.
The properties of 97W-2.1Ni-0.9Fe tungsten alloy bar are:
Alloy Type（%）：97W、2.1Ni、0.9Fe
MIL-T-21014: Class 4
SAE-AMS-T-21014: Class 4
AMS 7725 C: NIL
ASTM B777-87: Class 4
Density: 18.5 g/cc and 0.668 lbs/ in3
Hardness Rockwell: 28 C
Ultimate Tensile Strength Min: 123,000 ksi
Yield Strength Min (0.2% offset): 85,000 ksi
Elongation: 5 % in 1"
Proportional Elastic Limit: 45,000 psi
Modules of Elasticity: 53 x 106 psi
Coefficient of Thermal Expansion: 4.5 X 10-6/°C (20~400°C)
Thermal Conductivity: 0.3 CGS Units
Electrical Conductivity: 17 % IACS
Magnetic Properties: Slightly Magnetic
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