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Tungsten heavy alloys

Tungsten heavy alloys

Supplier — AvekGlob Company — offers heavy metal alloys based on tungsten at reasonable prices from the manufacturer. The supplier guarantees the timely delivery of products to any address specified by the consumer /

Technical specifications

Heavy tungsten alloys are pseudoalloys of tungsten with a nickel-iron or nickel-copper matrix. They are produced by the method of powder metallurgy and subsequent sintering.

A characteristic property of the tungsten alloys in question is their high density. Comparable densities are achieved only by noble metals such as gold or platinum, which are much more expensive. Other rare metals, such as rhenium, uranium or tantalum, reach these densities, but either are too difficult to process, or expensive to receive.

Other advantages of heavy tungsten alloys are their extremely high modulus of elasticity and a high absorption coefficient for ionizing radiation, for example, gamma radiation or high-energy X-rays. Their machinability is better than that of pure tungsten.

Other performance characteristics of heavy tungsten alloys:

high stiffness

low sensitivity to vibrations

high damping

high thermal conductivity

low thermal expansion

good workability

Urgency of application

Heavy alloys of tungsten are excellent materials for shielding and collimation of X and gamma radiation because of their strength and low toxicity.

Heavy alloys of tungsten have increased resistance to corrosion, and therefore are excellent alternatives to lead or depleted uranium masses, previously used as aerial counterweights.

High density of tungsten heavy alloys make them an excellent casing material for oil well logging.

Heavy alloys of tungsten are used for the production of vibratory

Boring beams and extension arms for metalworking tools. Such holders work well at high speeds and large depths of cutting and with high-speed feeds.

Tungsten heavy alloys are ideal for resistance welding electrodes and clamping jaws used, for example, for butt welding of copper wire.

Chemical composition

The main component of such alloys is chemically pure tungsten — from 90 to 97%. The composition also includes nickel, iron, molybdenum.

Physical and mechanical properties

Density, kg / m3 — 17000… 19000;

Resistance to oxidation, 0 С — up to 600;

Modulus of elasticity, GPa — 360… 385;

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

Coefficient of thermal expansion, μm / deg — 5,0… 5,3;

Strength limit, MPa — 800… 990;

Limit of plasticity, MPa — 600… 700;

Relative elongation at tension,% — 18… 20;

Hardness by Rockwell (scale C), not less than — 31.

Assortment

Tungsten heavy alloys 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 — the company AvecGlob — offers to purchase at affordable prices from manufacturers heavy alloys based on tungsten. 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.