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Alloy Vnzh3-2 - Hd-18d sheet, rod

Alloy Vnzh3-2 - Hd-18d sheet, rod

Supplier — AvekGlob company — offers at a reasonable price from the manufacturer a sheet and rod of tungsten alloy VNZh 3−2 (HD-18D). The supplier guarantees the timely delivery of products to any address specified by the consumer.

Technical specifications

These alloys refer to heavy alloys of tungsten with nickel and iron. They are produced by the method of powder metallurgy followed by sintering.

A characteristic feature of the alloys of VZH 3−2 (the closest foreign analogue of HD-18D) is their high density, high value of the elastic modulus and the absorption coefficient of ionizing radiation, for example, gamma radiation or high-energy X-ray radiation. The workability of alloys VNZH 3−2 (HD-18D) is better than that of pure tungsten. Alloys are also distinguished by high hardness, vibration resistance, good heat and electrical conductivity, low thermal expansion.

Urgency of application

Alloys of residence permit 3−2 (HD-18D) are used:

In the aerospace industry (rotor blades, propellers, inertial systems, balancing rods, trim tabs, etc.);

In medicine (collimators of X-ray and radiation therapy plants, production of medical isotopes, and radiation protection equipment);

In the production of weapons and security equipment (ammunition, luggage x-ray apparatus);

In the petrochemical and gas industries (casing strings, instruments for detecting oil and natural gas fields);

In sports (racing cars, sports weapons);

For the production of metalworking tools (rods, extensions, die casting molds, extrusion stamps).

Chemical composition

The composition of alloys of the Permit 3−2 (HD-18D) includes:

Tungsten — 93%;

Nickel — 3,5%;

Iron — 2%;

Copper — 1,5%.

Physical and mechanical properties

Density, kg / m3 — 18000;

Modulus of elasticity, GPa — 380;

The coefficient of thermal conductivity in the temperature range 20… 500 0 С, W / mgrad — 65… 90;

Coefficient of thermal expansion, μm / deg — 4,4… 4,6;

Strength limit, MPa — 860;

Limit of plasticity, MPa — 655;

Relative elongation at tension,% — 12;

Hardness by Rockwell (scale C), not less than — 27.


Alloys of the grade ВНЖ 3−2 (HD-18D) are supplied in the form of a thin-rolled sheet (for applications of detector screens), and also in the form of bars and slabs weighing from 100 kg to 1000 kg for other applications.

Supplier — AvekGlob Company — offers to buy at affordable prices from the manufacturers a sheet and rod of alloys VNZh 3−2 or HD-18D. 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.