Tungsten alloy block (WNiFe, WNiCu alloy)according to standard ASTM B777 , AMS- T 21014 , including 90WNiFe, 93WNiFe , 95WNiFe , 97WNiFe , 90WNiCu, 93WNiCu , 95WNiCu , 97WNiCu etc.
Tungsten heavy alloys generally are refractory metal, which have two-phase composites consisting of W-Ni- Fe or W-Ni- Cu or even W-Ni-Cu-Fe, some tungsten heavy alloy is added Co,Mo,Cr, etc. It could be made as various shapes, such as rod, cube, block, brick, ring, etc. Usually, tungsten alloy block could be manufactured as the parts of military defense, extrusion die, some counterweights, such as yacht counterweights, vehicle counterweights, airplane counterweights, helicopter counterweights, boat counterweights, tank counterweights, etc.
HD 17 | HD 17BB | HD 17D | HD 17.5 | HD17.7 | HD 18 | HD 18D | HD 18.5 | |
90%W 6% Ni 4% Cu | 90% W 6% Ni 4%Cu/Fe | 90% W 7% Ni 3% Fe | 92.5% W 5.25%Ni 2.25%Fe | 93WBalanceNi FeMo | 95% W 3.5%Ni 1.5%Cu | 95% W 3.5% Ni 1.5% Fe | 97% W 2.1% Ni 9% Fe | |
Density Gms/cc | 17 | 17 | 17.5 | 17.7 | 18 | 18 | 18.5 | |
Hardness Rockwell | 24 | 25 | 26 | 30 | 27 | 27 | 28 | |
Ultimate Tensile Strength (PSI) | 110,000 | 125,000 | 114,000 | 130,000 | 115,000 | 125,000 | 128,000 | |
Yield Strength .2% offset (PSI) | 90,000 | 88,000 | 90,000 | 90,000 | 85,000 | 90,000 | 85,000 | |
Elongation (% in 1") | 8 | 14 | 12 | 10 | 7 | 12 | 10 | |
Coefficient of Thermal Expansion X 10-6/°C (20-400°C) | 5.4 | 4.8 | 4.6 | 4.5 | 4.4 | 4.6 | 4.5 | |
Thermal Conductivity(CGS Units) | .23 | .18 | .20 | 27 | .33 | .26 | .30 | |
Electrical Conductivity (% IACS) | 14 | 10 | 13 | 14 | 16 | 13 | 17 | |
Magnetic Properties | HD 17 = NIL HD 17BB = Slightly Magnetic | Slightly Magnetic | Slightly Magnetic | Slightly Magnetic | NIL | Slightly Magnetic | Slightly Magnetic |