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Application: | Aviation, Electronics, Industrial, Medical, Chemical |
Standard: | GB, ASTM |
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Material:W90-97NiFe(Magnetic)&W90-97NiCu(Nonmagnetic)
Density:16.8-18.8g/cm3
high grade Tungsten high heavy alloy AMST 21014 class 3(another expression)
- Material: W90-97NiFe(Magnetic) & W90-97NiCu(Nonmagnetic)
- Density:16.8-18.8g/cm3
- Rods Size:dia(1.5 -200) x Length<500mm
Plate size: 0.1min Thickness*W*L
Thermal Properties
High softening temperature.
Low thermal conductivity and low coefficient of expansion gives the material a high resistance to thermal fatigue.
Excellent soldering erosion resistance to molten aluminium. Strong at high temperatures with high thermal stability.
Mechanical Properties
High Young's modulus of elasticity. Does not creep when experiencing significant forces, unlike Lead.
Despite their strength, they remain ductile and resistant to cracking.
The hardness range of the alloys is typically 20-35 Hardness HRC.
Property of tungsten alloy
AMST 21014 class 1
90%WNiFe, 90%WNiCu
Density : 17.0
Hardness: 32HRC max
Elongation: 5-20%
AMST 21014 class 2
92.5%WNiFe, 92.5%WNiCu
Density : 17.2
Hardness: 33HRC max
Elongation: 5-15%
AMST 21014 class 3
95%WNiFe, W95NiCu
Density : 18.0
Hardness: 34HRC max
Elongation: 3-10%
AMST 21014 class 4
97.5%WNiFe, W97.5NiCu
Density : 18.85
Hardness: 35HRC max
Elongation: 1-8%
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 |
Density: 11.85g/cm3-16.75g/cm3
Product standard: GB8320-87
WCu alloy rods size: dia(3.0-200mm)*L
WCu alloy foil size: Thickness(0.08-0.7mm)*Width<120mm*Length<300mm
WCu Flatness tolerance:<4um
WCuRoughness:Ra1.6-Ra0.8
WCuSurface: polished, ground.
WCu alloy foil size: Thickness(0.08-0.7mm)*Width<120mm*Length<300mm
WCu alloy sheet size see following attachment
WCu alloy rods size: diameter(3.0-200mm)*L<500mm
WCu tungsten copper alloy application and performance:
1. Arcing contacts and vaccum contacts in high and medium voltage breakers or vaccum interruptors;
2. Electrodes in electric spark erosion cutting machines;
3. Electrodes for resistance welding;used where the combination of high heat resistance, high electrical
4. Some of the applications are in electric resistance welding, as electrical contacts, and as heat sinks.
5. As contact material the alloy is resistant to erosion by electric arc. WCu alloys are also used in electrodes for electrical discharge machining and electrochemical machining.
Advantages of Copper Tungsten Plates:
1. Better heat resistant;
2. Better ablate-resistant;
3. High intensity
4. High density;
5. Excellent thermal and electrical conductivity;
6. Easy to be machined.