HD17BB tungsten alloy rod provides the benefits of both iron and copper. Its ingredient is 90% tungsten、6% nickel and 4% copper/iron. It is Class 1 product of ASTM-B-777 tungsten alloy rod. While still an excellent choice for tooling, it is also recognized as a cost-effective alternative to traditional tungsten, nickel, and iron alloys. HD17BB meets the requirements for AMS-7725, AMS-T-21014, MIL-T-21014D, as well as the current ASTM-777-07 Class 1 specifications.
The Properties of HD17BB tungsten alloy rod are:
Density: 17 Gms/cc and 0.614 Lbs/ in3
Hardness Rockwell: 24C
Ultimate Tensile Strength: 110,000 PSI
Yield Strength(2% offset): 90,000 PSI
Elongation: 8 % 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:??Slightly Magnetic
ASTM-B-459-67：Class 1
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