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 |
Application
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.
Buy
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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