Supplier — AvekGlob Company — offers at a reasonable price from the manufacturer a sheet and a rod of tungsten alloy VNZh 7−3 (MT-18F). 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, copper and iron. They are produced by the method of powder metallurgy followed by sintering.

A characteristic feature of the alloys of VZH 7−3 (the closest foreign analogue of MT-18F) 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 the alloys of VNZH 7−3 (MT-18F) is better than that of pure tungsten. Alloys are also distinguished by high values of rigidity, resistance to vibrations, good heat and electrical conductivity, low thermal expansion.

Urgency of application

Alloys of residence permit 7−3 (МТ-18F) are used:

In the aerospace and watch industry (rotor blades of turbine engines, screws, inertial systems, balancing rods, counterbalances of watch mechanisms, trim tabs, etc.);

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

In the production of weapons and security equipment (cores for sub-caliber ammunition, baggage X-ray machines on transport terminals);

In the petrochemical and gas industries (components of casing strings, elements of instruments for detecting oil and natural gas deposits);

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 VNZH 7−3 (MT-18F) includes:

Tungsten — 90%;

Nickel — 7%;

Iron — 2%;

Copper — traces.

Physical and mechanical properties

Density, kg / m3 — 17000;

Modulus of elasticity, GPa — 380;

The coefficient of thermal conductivity in the temperature range 20… 500 ⁰ С, W / mgrad — 60;

Coefficient of thermal expansion, μm / degree — 5,4;

Ultimate strength, MPa — 810;

Limit of plasticity, MPa — 430;

Relative elongation at tension,% — 8;

Hardness according to Rockwell (scale C), not less than — 24.

Sorting and processing features

Alloys of grade ВНЖ 7−3 (МТ-18F) are supplied in the form of a thin-rolled sheet and rod, and also in the form of bars and slabs weighing from 100 kg to 1000 kg. Characterized by weak magnetic properties, which should be taken into account in the technology of machining.

Supplier — AvekGlob company — offers to buy at affordable prices from the manufacturers a sheet and rod of alloys VNZh 7−3 or MT-18 °F. 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.