The history of bronze. Physical and mechanical properties.
Electrovek-Steel offers introductory information about the history of the industrial application of bronze, its basic physical and mechanical characteristics. The supplier provides high-quality information services, the content of which can be promptly modified and supplemented in accordance with the individual requirements of the customer.
The history of obtaining and using bronze
Bronze characterizes a large group of copper-based non-ferrous alloys, for which any metal other than zinc is used as the predominant alloying additive. In practice, tin, phosphorous, siliceous, aluminum and beryllium bronzes are used.
Bronze is one of the most ancient alloys. Its appearance is due to the fact that in most copper mines of antiquity copper ore contained a large percentage of tin. During smelting, this circumstance contributed to an increase in the hardness of the final product. In addition, tin increases the fluidity of the alloy, which facilitates the smelting of the ore in the molds. Finished tools were better grinded and less dull. Later it turned out that bronze is also well forged and liable to drag. As the development of metallurgy began to add to the tin and other components, receiving various types of bronze.
Currently, technical requirements for the production of bronze are regulated by several domestic standards (in particular, GOST 613 — foundry tin bronze, GOST 10025 — rolled bronze, GOST 5017 — drawn and deformable bronze, etc.).
Electrovek-Steel offers services to inform the supply of different brands of bronze. The supplier guarantees a cost-effective service, as well as prompt provision of the necessary information to the customer.
Physico-mechanical characteristics of bronze
The main area of application of bronze is the production of corrosion-resistant products, which resist the processes of friction wear. As the initial blanks are used castings, bars, sheet metal, wire, as well as forging.
The physical properties of bronzes are given in the table:
|Type of bronze||Density, g / cm 3||Thermal conductivity, W / md||Coefficient of linear expansion, 10 -6 С -1||Specific electrical resistance, 10 6 Ohm|
|Aluminum||7.6… 8.2||0.19… 0.29||16.0… 18.2||9.95… 18.30|
|Siliceous||8.4… 8.6||0.09… 0.12||15.8… 18.6||4.6… 15.0|
The mechanical properties of bronzes are indicated below:
|Type of bronze||Ultimate strength, MPa||Yield strength, MPa||Young’s modulus, GPa||Relative extension, %||Brinell hardness|
|Aluminum||550… 1000||190… 500||93… 130||4… 25||155… 200|
|Beryllium||950||850… 900||117||1.5… 2||350… 400|
Services of high-quality and timely information support on the supply of various brands of bronze are offered by Electrovek-Steel. The supplier guarantees the promptness of the information provided to the customer.