Description
Tungsten-nickel-copper alloy is made of tungsten, nickel, copper and other chemical elements in appropriate proportion. Alloys are mainly with over 85% tungsten and low amounts of nickel, copper, etc. The ratio of added nickel and copper is normally 3:2.WNiCu alloys are produced in processes of liquid phase sintering and added elements alloying, etc. Due to various characteristics and uses of the alloy, the compositions can be divided into main series of W-Ni-Fe, W-Ni-Cu, W-Co, W-WC-Cu, W-Ag, etc. The WNiCu alloys from Achemetal Furnace co., Ltd comply with Standard ASTM B777-99.
Application
1. Tungsten-nickel-copper alloy is widely used in fields of aviation and oil drilling.
2. It is also applied for electrical instrumentation, medical and industrial purpose.
3. WNiCu alloys can also used for producing balancing weights, high temperature moulds, electro-heat upsetting anvil block, the core of armour piercing shell and protection shields for high-energy rays.
Features
1. Tungsten-nickel-copper alloy has a high density of 16.8g/cm3 to 18.75g/cm3.
2. It has high tensile strength from 700 to 1000 MPa.
3. It owns strongly absorbed radiation capacity, which is about 30% to 40% higher than that of lead.
4. WNiCu alloy has large coefficient of thermal conductivity, which is five times higher than mold steel.
5. The coefficient of thermal expansion is fairy small. The coefficient only accounts for 1/3 to 1/2 of iron or steel’s.
6. Tungsten-nickel-copper alloy possesses good conductive property, high strength as well as good weldability and workability;
7. WNiCu alloy is a kind of non-magnetic metal.
Parameters
| Class | Nominal W | Density | Max. hardness | Tensile strength | Elongation |
| weight% | g/cc | Rockwell ‘C’ | MPa | % | |
| Class1 | 90 | 16.85-17.25 | 32 | 700-1200(600-800) | 20-33(4-8) |
| Class2 | 92.5 | 17.15-17.85 | 33 | 700-1400(500-600) | 15-25(3-5) |
| Class3 | 95 | 17.75-18.35 | 34 | 700-1200 | 8-15 |
| Class4 | 97 | 18.25-18.85 | 35 | 600-1000 | 8-14 |
| Note: The data in brackets apply to non-magnetic WNiCu alloy. | |||||
Achemetal Furnace Co., Ltd is a professional manufacturer and supplier of tungsten-nickel-copper alloys in China. WSe also provide WniFe alloys, tungsten heavy alloys, tungsten heavy alloy plates, tungsten heavy alloy rods as well as tungsten heavy alloy parts. All of our products are made in accordance with the standard of ISO9001 and ASTM B777-99. Above 60% of our WNiCu alloys are exported to more than ten countries and areas, such as USA, Germany, Japan, Russia, South Korea, etc. Our tungsten-nickel-copper alloys have been highly recognized by customers for their excellent quality and accuracy.
