Tungsten heavy alloys£º
¡¡ heavy alloys(WNiFe, WNiCu) consist of 85-98% tungsten with balanced commonly nickel and iron or copper. The alloys are made by liquid-phase sintering to give a structure consisting of almost pure tungsten particles in a matrix of the alloy elements. Tungsten Heavy Alloys, with densities between 16.9 and 18.1 g/cm3, represent the heaviest materials generally available to the engineer. It has excellent radiation resistance, thermal and electric conductivities, corrosion resistance and machinable. We can offer tungsten alloys with tungsten contents ranging from 85 to 98% with a range of physical and mechanical properties as well as non-magnetic W-Ni-Cu.
Properties:
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Material Specifications |
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Mil. T-21014 Rev. D |
Class 1 |
Class 2 |
Class 3 |
Class 4 |
Class 1 |
Class 2 |
Class 3 |
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SAE-AMS-T-21014 |
Class 1 |
Class 2 |
Class 3 |
Class 4 |
Class 1 |
Class 2 |
Class 3 |
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AMS 7725 B |
7725B |
¡ª |
¡ª |
¡ª |
7725B |
¡ª |
¡ª |
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ASTM-B-777-87 |
Class 1 |
Class 2 |
Class 3 |
Class 4 |
Class 1 |
Class 2 |
Class 3 |
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Minimum Density (g/cc) |
16.85 |
17.15 |
17.75 |
18.25 |
16.85 |
17.15 |
17.75 |
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Minimum Density (lbs/in3) |
0.608 |
0.619 |
0.641 |
0.659 |
0.608 |
0.619 |
0.641 |
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Nominal W Content (wt.%) |
90 |
92.5 |
95 |
97 |
90 |
92.5 |
95 |
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Nominal Nickel Content (wt.%) |
7.1 |
5.4 |
3.6 |
2.1 |
8.8 |
6.6 |
4.4 |
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Nominal Iron Content (wt.%) |
2.9 |
2.1 |
1.4 |
0.9 |
1.2 |
0.9 |
0.6 |
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Maximum Magnetic Perm |
n/a |
n/a |
n/a |
n/a |
<1.05 |
<1.05 |
<1.05 |
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Typical Hardness (HRC) |
28 |
28 |
29 |
30 |
28 |
28 |
29 |
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Modulus of Elasticity (x106 psi) |
45 |
48 |
50 |
52 |
45 |
48 |
50 |
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Ultimate Tensile Strength Min. (ksi) |
120 |
120 |
120 |
110 |
110 |
110 |
110 |
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0.2% Offset Yield Strength Min (ksi) |
80 |
80 |
80 |
80 |
75 |
75 |
75 |
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Minimum % Elongation (1" Gauge Length) |
10 |
8 |
6 |
2 |
4 |
3 |
3 |
Dimensions:
Balls: ¦µ2mm above
Shafts: £¨¦µ2mm above£©¡Á£¨Length max.600mm£©
Sheets: £¨Thickness 0.15mm above£©¡Á£¨Wideness max.200mm£©¡Á£¨Length max.500mm£©
Square, round and rectangle sizes: diameter 550mm above
According the demanding
Applications:
1, Radiation shield, collimator, nuclear shielding, beamstop, PET syringe shield, vial shield, isotope container, FDG container, multi leaf collimator ,
2, Balanced part; tungsten sinker bar, heavy metal boring bar, tuyacht, sailboat, submarine and other vessels crank camshafts, holders for Well Logging, Racing Weights. vibration damping and dynamic balancing. Tungsten sinker bar, Tungsten bucking bar, Tungsten boring bar, Tungsten Sinkers, tungsten alloy counterweights for golf and tungsten alloy dart parts spheres, cubes, and projectile shapes
3, High-temperature die, Electroheat , brass and copper, Tooling for low-pressure die-casting of aluminium and brass, Hot upsetting dies, Filler rods for die repair,
upsetting anvil block, electrical rivet
4, Shrapnel head; Penetrators
5, Electrical contact;
6, Balanced ball for missile and plane; golf and tungsten alloy dart parts spheres, cubes, and projectile shapes
7, Core for armourpiercing bullet measurement
