W alloy

ASTM B 777
Class 1
Class 2
Class 3
Class 4
Tungsten Nominal %
90
92.5
95
97
Density (g/cc)
16.85-17.25
17.15-17.85
17.75-18.35
18.25-18.85
Hardeness (HRC)
32
33
34
35
Utimate Tensile Strength
ksi
110
110
105
100
Mpa
758
758
724
689
Yield Strength at 0.2% off-set
ksi
75
75
75
75
Mpa
517
517
517
517
Elongation (%)
5
5
3
2

 

 

Description

AMS-T-21014
Class 1
Class 2
Class 3
Class 4
Composition
90W7Ni3Fe
92W5Ni3Fe
95W3Ni2Fe
97W2Ni1Fe
Density (g/cm3)
17.1±0.15
17.50±0.15
18.10±0.15
18.50±0.15
Heat Treatment
Sintering
Sintering
Sintering
Sintering
Tensile Strength (Mpa)
900-1000
900-1000
920-1100
920-1100
Elongation (%)
18-29
16-26
10-22
6-13
Hardness (HRC)
24-28
25-29
27-32
28-36

 

Mil-T-21014
Class1
Class2
Composition
90%W,
6%Ni4%Cu
95%W,
3.5%Ni
1.5% Cu
Density (gm/cc; lbs/in3)
17;0.614
18;0.65
Hardness (RC)
24
27
Ultimate Tensile Strength (PSI)
110,000
110,000
Yield Strength, . 2% Offset (PSI)
80,000
85,000
Elongation (% In 1“)
6
7
Proportional Elastic Limit (PSI)
45,000
45,000

QUALITY&INSPECTION

ADVANTAGES


1.High density
2.High wear-resistant
3.High thermal conductivity with low thermal expansion coefficient
4.High vibration-damping capacity and high Young's modulus
5.High oxidation resistance and corrosion resistance

The density of tungsten heavy alloy is very high. Its density is twice of steel.It is massively applied to balancing weight mould,counterweight and high temperature moulds.

Tungsten heavy alloy has low thermal coefficient but it has high absorption ability and high-energy rays.It aslo can be made into protective shield and high-energy rays as the parts of military defense.

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