CDA260 copper alloy

CDA 260 copper alloy copper alloy CDA260 CDA260 supplier CDA260 Shenzhen warehouse CDA260 CDA260 copper alloy CDA260CDA260 manufacturers CDA260 brass pipe in order to improve the corrosion resistance, strength, hardness and cutting, etc., in a copper - zinc alloy in a small amount (usually 1 % to 2%, a small 3% to 4%, a very few up to 5% to 6%), tin, aluminum, manganese, iron, silicon, nickel, lead elements, constitute or three or four, or even five yuan alloy , is a complex brass, also known as special brass. Brass zinc equivalent coefficient of complex organizations, according to Brass adding elements "zinc equivalent factor" to calculate. Because a small amount of other alloying elements copper and zinc alloy, usually just make Cu-Zn state diagram of α / (α + β) phase region to the left or right. So special brass bodies, usually the equivalent of ordinary brass increase or decrease the zinc content of the tissue. For example, join the organization after a 1% silicon in Cu-Zn alloy, which is equivalent to an increase of 10% zinc alloys in the Cu-Zn alloy. Therefore, the silicon "zinc equivalent" 10. "Zinc equivalent coefficient" Silicon maximum, so that the Cu-Zn-based α / (α + β) phase boundary significantly towards the copper side, which strongly reduce α phase region. Nickel "zinc equivalent coefficient" is negative, that the expansion of α-phase region. Performance of special brass phase α and β solid solution phase is diverse and complex, the larger its strengthening effect, but ordinary brass in the α and β phase is a simple Cu-Zn solid solution strengthening effect lower. Although zinc equivalent rather, the nature of pluralism solid solution with simple binary solid solution is not the same. Therefore, a small amount strengthening pluralism as a way to improve the performance of the alloy. Lead Brass Lead is virtually insoluble in the brass, the state was free distribution of particles on the grain boundaries. Brass lead their organizations α two kinds of (α + β). α lead brass due to adverse effects of lead larger, high-temperature ductility is very low, it can be cold or hot extrusion deformation. (Α + β) lead brass has good plasticity at high temperatures, it can be forged. Tin Brass Tin Tin Brass Brass Brass adding tin, can significantly improve the heat resistance of the alloy, in particular to improve the ability of sea water resistant, so tin brass have "Navy brass," he said. Tin can dissolve copper-based solid solution, from the solid solution strengthening effect. But with the increase of tin-containing alloys brittle r phase (compound CuZnSn) will appear, it is not conducive to plastic deformation of the alloy, so the amount of tin-containing tin brass is generally within the range of 0.5% to 1.5%. Commonly used tin brass have HSn70-1, HSn62-1, HSn60-1 like. The former is the α alloy with high plasticity, can be cold, hot pressure processing. The latter two grades of alloy having (α + β) two-phase structure, and often a small amount of r-phase, room temperature ductility is not high, only deformed in the hot state. CDA260 tape CDA260 plate CDA260 mechanical properties of copper CDA260 CDA260 special pipe, CDA260 price, CDA260 ingredient, CDA260 what material, CDA260 mechanical properties, CDA260 corresponding trademark, CDA260 copper alloy, CDA260 copper alloy, CDA260 manufacturers, CDA260 chemical composition, CDA260 special copper metal copper CDA260 Shenzhen Special Materials Co., Ltd.