Supplier — AvekGlob company — offers at reasonable prices from the manufacturer a sheet, rod and tape made of the alloy VNM3−2 (WNi3Mo2). The supplier guarantees the timely delivery of products to any address specified by the consumer /

Technical specifications

The alloy VNM3−2 (the closest foreign analogue is the WNi3Mo2 alloy) belongs to the group of heavy tungsten alloys containing copper and nickel and differing in high corrosion resistance at elevated temperatures. This property of the alloy is maintained up to operating temperatures of 580… 620 ⁰ C. The alloy is obtained by the technology of powder metallurgy with the subsequent sintering of blanks into the molds of the required range. The material is characterized by low thermal expansion, good heat and electric conductivity, excellent arc resistance, excellent abrasion resistance at elevated temperatures.

Urgency of application

Alloy brands VNM3−2 (WNi3Mo2) are used in military technology, pharmaceuticals, food industry and in the details of optical equipment.

Primary applications include the production of precise bearing assemblies, sputtering targets in the medical industry and nuclear engineering, ballast systems, radiation protection installations and molds for precision injection molding. Typical products that are made from these alloys are counterweights, vibration and recoil reduction devices, X-ray shielding devices, aerospace parts. The addition of copper improves the antifriction characteristics of the alloy.

Chemical composition

Tungsten — not less than 90… 95%;

Copper — 3%;

Nickel — 3%.

The total content of nickel, molybdenum, copper and iron in an amount up to 10% is allowed. The total amount of metallurgical impurities — bound nitrogen, carbon and silicon should not exceed 0.03%.

Physical and mechanical properties

Density, kg / m ³ — 17000… 18500;

The limit of temporary resistance, MPa — not less than 650;

Yield strength, MPa — no more than 520;

Relative elongation,% — not less than 2;

The coefficient of thermal conductivity in the temperature range 20… 500 ⁰ С, W / mgrad — 65;

The coefficient of thermal expansion in the temperature range 20… 500 ⁰ С, μm / deg — 4… 6;

Hardness according to Rockwell, scale C, no more than 32.

Sorting and processing features

The alloy grade VNM3−2 (WNi3Mo2) is available in various final forms, such as ingots, foil, sputtering targets, plates, etc. The bar and the circle are obtained only chemically. Alloys can be welded in vacuum and forging, and when machined they exhibit weak magnetic properties.

Supplier — AvekGlob company — offers to buy at affordable prices from the producers a sheet, bar or tape, which are made of alloy VNM3−2 (WNi3Mo2). Products can be bought at a price formed on the basis of European and world standards of production. Implementation is possible in bulk and retail, for regular customers, a flexible system of discounts operates.