Brass marking
Classification
Brasses are subdivided into: 1) Two-component simple ones, which consist only of zinc and copper and have impurities in small amounts. 2) Special multi-component brass, which in addition to zinc and copper contain additional alloying elements. Such elements may be iron, aluminum, nickel, manganese, silicon and lead. Brass is also subdivided into foundry and wrought brass.
Alloying
Tin can increase strength and resistance to corrosion in seawater. Manganese increases the corrosion resistance and strength of brasses, especially when combined with tin, iron and aluminum. Nickel contributes to strength and corrosion resistance in corrosive environments. Silicon, on the other hand, impairs strength and hardness. Lead contributes to improved machinability but impairs mechanical properties. Lead and silicon alloying together help to increase the antifriction properties, after which such brass can serve as a substitute for more expensive, for example, tin bronzes.
Marking
Multi-component brass is marked as follows: the first letter L stands for brass, followed by a number of letters which indicate the composition of the alloying elements other than zinc. Figures, indicated through a hyphen stand for the following: the first digit reflects an average percentage content of copper, subsequent digits indicate the content of each alloying element in the same order as in the letter part of the Grade. The order of numbers and letters is established in accordance with the content of the element: the first comes the element whose share in the alloy is the highest, and the rest of the additives go downwards. The zinc content is determined by the difference from 100%. For example: the grade LAZHMz66-6-3-2 shall be decoded as follows: brass containing Cu - 66%, Al -6%, Fe -3% and Mn - 2%. The zinc content of the brass is 100 - (66+6+3+2) = 23%. Brass, which contains 5-20% Zn is called tompak (red). Brass that contains 20-36% Zn is called yellow. Brasses containing more than 45%Zn are very rarely used in practice. The grades of plain brass only indicate the copper content. Lb3 - contains 63% copper and -37% zinc; L96 - contains 96% copper and ~4%Zn (tompak).
Brass applications. Casting alloys
- ЛЦ40Мц3Ж - propellers and blades, fittings, complex shape parts
- LC40S - sleeves, fittings, cages of roller and ball bearings, etc;
- LC30A3 - corrosion-resistant parts.
Deformable alloys
- LZMz59-1-1 - bars, strips, wire, tubes;
- LZh60-1-1 - bars, tubes;
- LS59-1 - bars, strips, wire, tubes.
Supplier
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At the warehouse of the supplier "Auremo" is the widest selection of products. Always available brass rolled products, the price - due to the technological features of production without the inclusion of additional costs. This is the optimal price from the supplier. Buy today. Waiting for your orders. We have the best price-quality ratio for the whole range of products. On communication experienced managers - will promptly help you to buy brass rolling in bulk or in installments. Regular customers can buy brass rolling with a discount discount, the price - the best in this segment of rolled products. Supplier "Auremo" is a recognized expert in the market of non-ferrous metals. Thanks to the representative offices in Eastern Europe, we have the possibility of prompt interaction with trade partners.
