Tungsten Heavy Alloy Plate (WNiFe, WNiCu alloy)according to standard ASTM B777 , AMS- T 21014, including 90WNiFe, 93WNiFe , 95WNiFe , 97WNiFe , 90WNiCu, 93WNiCu , 95WNiCu , 97WNiCu etc.
Tungsten heavy alloys are generally refractory metal, which have two-phase composites consisting of W-Ni- Fe or W-Ni- Cu or even W-Ni-Cu-Fe, some tungsten alloy is added with Co,Mo,Cr, etc. They have very high melting point and have a density twice that of steel and are more than 50% heavier than lead. Tungsten content in conventional heavy alloys varies from 90 to 98 weight percent and is the reason for their high density (between 16.5 and 18.75 g/cc). Nickel, iron and copper serve as a binder matrix, which holds the brittletungsten grains together and makes the alloys ductile and easy to machine.
Advantages:
The above advantages have made this alloy a candidate for defense and civilian applications. They are widely used in many fields such as aerospace, military, oil logging, electrical appliance, medical, etc.
Material | Chemistry | Density | Hardness |
HD17 | W,Ni,Cu | 17 | 24 |
HD17BB | W,Ni,Cu/Fe | 17 | 24 |
HD17D | W,Ni,Fe | 17 | 25 |
HD17.5 | W,Ni,Fe | 17.5 | 26 |
HD17.7 | W,Ni,Fe,Mo | 17.7 | 30 |
HD18 | W,Ni,Cu | 18 | 27 |
HD18D | W,Ni,Fe | 18 | 27 |
HD18.5 | W,Ni,Fe | 18.5 | 28 |