Application: | Aviation, Electronics, Industrial, Medical, Chemical |
---|---|
Standard: | GB, ASTM |
Purity: | W90 W92 W95 W97 |
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Class | Nominal tungsten (weight percent) | Density (g/cc) | Hardness ( HRC )(maximum) |
1 | 90 | 16.85 - 17.25 | 32 |
2 | 92.5 | 17.15- 17.85 | 33 |
3 | 95 | 17.75- 18.35 | 34 |
4 | 97 | 18.25- 18.85 | 35 |
Code No. | Chemical Composition % | Mechanical properties | |||||||||||
CU | Impurity | W | Density (g/cm3 ) |
Hardness HB |
RES (cm) |
Conductivity IACS/ % |
TRS/ Mpa |
||||||
CuW50 | 50+/-2.0 | 0.5 | Balance | 11.85 | 115 | 3.2 | 54 | / | |||||
CuW55 | 45+/-2.0 | 0.5 | Balance | 12.3 | 125 | 3.5 | 49 | / | |||||
CuW60 | 40+/-2.0 | 0.5 | Balance | 12.75 | 140 | 3.7 | 47 | / | |||||
CuW65 | 35+/-2.0 | 0.5 | Balance | 13.3 | 155 | 3.9 | 44 | / | |||||
CuW70 | 30+/-2.0 | 0.5 | Balance | 13.8 | 175 | 4.1 | 42 | 790 | |||||
CuW75 | 25+/-2.0 | 0.5 | Balance | 14.5 | 195 | 4.5 | 38 | 885 | |||||
CuW80 | 20+/-2.0 | 0.5 | Balance | 15.15 | 220 | 5 | 34 | 980 | |||||
CuW85 | 15+/-2.0 | 0.5 | Balance | 15.9 | 240 | 5.7 | 30 | 1080 | |||||
CuW90 | 10+/-2.0 | 0.5 | Balance | 16.75 | 260 | 6.5 | 27 | 1160 |
Tungsten Alloys |
||||
EFI Grade |
EF17 |
EF175 |
EF18 |
EF185 |
ASTM B 777-07 |
1 |
2 |
3 |
4 |
Weight % Tungsten |
90 |
92.5 |
95 |
97 |
Nominal Density GM/CC |
17.00 |
17.50 |
18.00 |
18.50 |
Minimum* Ultimate Tensile Strength UTS (KSI) |
110 |
110 |
105 |
100 |
Minimum* Elongation % |
5 |
5 |
3 |
2 |
Modulus of Elasticity (KSI) |
45,000 |
48,000 |
50,000 |
52,000 |
Tungsten Content |
Type | Diameter (mm) |
Dia.Tolerance (mm) |
Length (mm) |
L tolerance (mm) |
99.95% | Sintering rod | 40-100 | ±3 | 500max | ±5 |
99.95% | Froged rod | 20-80 | ±2 | 800max | ±5 |
99.95% | Ground rod | 2-60 | ±0.1 | 600max | ±1 |