Brass Marking
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Technical specifications
Brass is an alloy of copper and zinc — copper 55 — 96%, zinc 45 — 4%. When added to the composition of aluminum, tin, nickel and manganese increases the anti-corrosion resistance, and additives lead and silicon to brass significantly increase its antifriction properties.
Classification of brasses
- According to the delivery state — cast or deformable;
- Hardness: soft, semi-solid and hard;
- According to the degree of preliminary deformation — riveted (hardened) and non-clipped;
- By the form of the previous heat treatment.
Marking
The first letter in the abbreviation of the alloy — A, means brass, the subsequent letters indicate the composition of the alloying elements entering into the alloy, except zinc. Then follows the numbers indicated through the hyphen, the first figure reflects the average percentage of copper, the subsequent figures indicate the content of each alloying element in a decreasing sequence. The first after the letter A in the abbreviation is the element whose fraction in the composition of the alloying additives is greatest, and the remaining additives are designated in order of their decrease in the alloy. So: the brand LAZHMTS 66−6-3−2 should be deciphered in this way: it is brass containing Cu-66%, Al -6%, Fe-3% and Mn-2%. The zinc content in this alloy is 100% — (66 + 6 + 3 + 2) = 23%.
Delivery, price
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