ASTM B777-99 class1 tungsten alloy tube has a series of advantages, such as low friction coefficient, high thermal conductivity, high heat resistance, etc. It is mainly used in sapphire growth furnace, rare earth metal smelting, induction furnace heating element, quartz glass melting, etc.
The properties of ASTM B777-99 class1 tungsten alloy tube are:
ASTM B777-99: class1
Matrix: 90%
Density: 16.85~17.25g/cc
Hardness Rockwell Max: 32HRC
Ultimate Tensile Strength: 110 KSI and 758MPa
Yield Strength (0.2% offset): 75KSI and 517MPa
Elongation: 5%
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