Xiamen Lota International Co., Ltd.

Qing Lv

Zhenqing Hu

Jia Long

Siqi Zhang

Huawei Zhang

Chuankai Xu

Nianrun Zhou

Yuanhao Cheng

Qiu Bi

A low-cost lead-free dezincification corrosion-resistant brass alloy for casting. The brass alloy contains: 60-65 wt. % of Cu, 0.05-0.25 wt. % of Pb, 0.05-0.8 wt. % of Al, 0-0.1 wt. % of Sn, and 0.05-0.16 wt. % of As, with the balance being Zn and inevitable impurities. Moreover, the equivalent weight of zinc X meets the requirements of the following formula: 35%&#x3c;X&#x3c;39.5%, and X=(B+&#x3a3;CiKi/(A+B+&#x3a3;CiKi); in the formula, X is the equivalent weight of zinc in the complex brass, A is the copper content (%), B is the actual zinc content (%), Ci is the content (%) of the other alloy elements, and CiKi is the corresponding equivalent weight of zinc of various elements.

Low-cost lead-free dezincification-resistant brass alloy for casting

The present invention provides an environment-friendly manganese brass alloy, which comprises 55&#x2dc;65 wt % of Cu, 1.0&#x2dc;6.5 wt % of Mn, 0.2&#x2dc;3.0 wt % of Al, 0&#x2dc;3.0 wt % of Fe, 0.3&#x2dc;2.0 wt % of Sn, 0.01&#x2dc;0.3 wt % of Mg, 0&#x2dc;0.3 wt % of Bi and/or 0&#x2dc;0.2 wt % of Pb, the balance being Zn and unavoidable impurities. The alloys not only have superior mechanical properties, castability, cutability and corrosion resistance, especially stress corrosion resistance properties, but also have the advantages of low manufacturing costs and simple manufacturing process etc, which is suitable for making components through forging, casting, cutting and other manufacturing methods, especially suitable for making water tap bodies and valves through forging, casting and cutting processes.

Environment-friendly manganese brass alloy and manufacturing method thereof

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Xiamen, China

Qing Lv