High-Density Tungsten Based Heavy Alloys
High-Density Tungsten Based Heavy Alloys
Chinatungsten’s high-density tungsten heavy alloys are high -strength, machinable, tungsten based materials used when high density and strength are required.
Typical Properties of Tungsten Heavy Alloys
|
|
HD 17 |
HD 17BB |
HD 17D |
HD 17.5 |
HD 17.7 |
HD 18 |
HD 18D |
HD 18.5 |
|
90% W
6% Ni
4% Cu |
90%W
6% Ni
4% Cu/Fe |
90%
W7%
Ni3%
Fe |
92.5% W5.25% Ni2.25%
Fe |
93% W
Balance
Ni Fe Mo |
95% W
3.5% Ni
1.5% Cu |
95% W
3.5% Ni
1.5% Fe |
97% W
2.1% Ni
.9% Fe |
|
ASTM-B-777-07 |
Class 1 |
Class 1 |
Class 2 |
Super Chatter Free™ |
Class 3 |
Class 3 |
Class 4 |
|
Density Gms/cc |
17 |
17 |
17.5 |
17.7 |
18 |
18 |
18.5 |
|
Density Lbs/cu. in. |
.614 |
.614 |
.632 |
.639 |
.650 |
.650 |
.668 |
|
Hardness Rockwell C |
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 |
|
Proportional Elastic Limit (PSI) |
45,000 |
52,000 |
46,000 |
60,000 |
45,000 |
44,000 |
45,000 |
|
Modules of
Elasticity (PSI) |
40 x 106 |
45 x 106 |
47 x 106 |
53 x 106 |
45 x 106 |
50 x 106 |
53 x 106 |
|
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 |
*Properties may vary according to size and shape of part.
Composition shown is typical and may change for manufacturing purposes or to meet physical and/or application requirements.
If non-magnetic material is required, it should be specified.
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