90W-6Ni-4Cu tungsten alloy plate has high melting point, low thermal expansion, high electrical resistance, and good thermal conductivity. It is suitable for high temperature uses which include electrical, heating, and welding applications.
The properties of 90W-6Ni-4Cu tungsten alloy plate are:
Alloy Type：W 90%、Ni 6%、Cu 4%
MIL-T-21014: Class 1
SAE-AMS-T-21014: Class 1
AMS 7725 C: 7725 C
ASTM B777-87: Class 1
Density: 17.1 g/cc and 0.614 lbs/ in3
Hardness Rockwell: 24 C
Ultimate Tensile Strength Min: 110,000 ksi
Yield Strength Min (0.2% offset): 80,000 ksi
Elongation: 6 % in 1"
Proportional Elastic Limit: 45,000PSI
Modules of Elasticity: 40 x 106 PSI
Coefficient of Thermal Expansion: 5.4 X 10-6/°C (20~400°C)
Thermal Conductivity: 0.23 CGS Units
Electrical Conductivity: 14 % IACS
Magnetic Properties: NIL
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