Tungsten and lead bronze

You are interested in the characteristics of tungsten and svintsoviy of bronze? KMZ supplier offers tungsten and svintsoviy bronze at economical price. Supplier guaranteed timely delivery at any address specified by the consumer.

Tungsten bronze

Refers to a group of colored crystalline compounds of variable composition with a distinctive surface sheen, which represent the mixed oxides of tungsten, sodium or other alkali metal. Such materials are good conductors of electricity. They can be obtained by reduction of the normal tungstate (in the form of sodium tungstate Na2 WO4 with tungsten) or tungsten trioxide with sodium. Tungsten bronze is a metal composite material, which consists of a combination of tungsten and copper. Production their production process is hot extrusion of tungsten in the melt. The result is a relatively hard material with excellent electrical and mechanical resistance and wear resistance, high physical properties at elevated temperatures and good electrical and thermal conductivity.

Main characteristics of tungsten bronzes

Composition Density Brinell hardness number Conductivity Allowable pressure
g/cm3, no less HB, nothing more µΩ.cm, not less MPa, not less
W50/Cu50 11.85 115 3.2 --
W55/Cu45 12.30 125 3.5 --
W60/Cu40 12.75 140 3.7 --
W65/Cu35 13.30 155 3.9 --
W70/Cu30 13.80 175 4.1 790
W75/Cu25 14.50 195 4.5 885
W80/Cu20 15.15 220 5.0 980
W85/Cu15 15.90 240 5.7 1080
W90/Cu10 16.75 260 6.5 1160


The use of tungsten bronze electrodes for resistance welding, heat sinks as passive cooling elements of electronic devices electrodes in installations of electro-spark processing, closing contacts and vacuum contacts in circuit breakers high and medium voltage in vacuum.

Lead bronze

Lead (vincolata) bronze is used in lead-acid batteries, fire sprinkler systems, in the production of munitions, cable shells and some building materials. (such as sheet, pipe, solder, and wool for sealing).

Mark GOST Fe Si Ni P Cu As Pb Zn Sb Sn Impurities
Brs30 493−79 ≤0.25 ≤0.02 ≤0.5 ≤0.1 68.1 — 73 ≤0.1 27 — 31 ≤0.1 ≤ 0.3 ≤0.1 ≤0.9

From svintsoviy made of bronze counterweights, battery clamps and other cast products, in particular, the bearings, the ballast strip. As an alloying material, lead is used in bronze to improve its machinability.


You are interested in the characteristics of tungsten and svintsoviy of bronze? Supplier KMZ offers to buy tungsten and svintsoviy bronze at economical price. The provider ensures timely delivery of products at any address specified by the consumer.

Supplier, price

Buy tungsten and bronze svintsoviy provider KMZ can at an affordable price. The price is formed based on the European standards of production. Buy tungsten and svintsoviy bronze at a reasonable price, you can wholesale or retail. Regular customers can take advantage of the discount system of discounts from the company KMZ.

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