Abstract: The present application relates to a zinc alloy and a manufacturing method thereof. The zinc alloy of the present application contains Al at an amount of 3.5-4.3 wt % and Mg at an amount of 0.005-0.018 wt %, and the rest of the alloy is Zn and unavoidable impurities. The alloy has excellent crack resistance, high casting yield, excellent polishing and electroplating properties, and can meet the high surface quality requirements of castings. It is suitable for die-casting production of components of plumbing and sanitary ware, hardware accessories, electronic appliances, toys and the like.

Abstract: 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%<X<39.5%, and X=(B+?CiKi/(A+B+?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.

Abstract: The present invention provides a lead-free easy-to-cut corrosion-resistant brass alloy with good thermoforming performance. The brass alloy contains: 74.5-76.5 wt % of Cu, 3.0-3.5 wt % of Si, 0.11-0.2 wt % of Fe, 0.04-0.10% wt % of P, Zn and inevitable impurities. The alloy provided by the present invention has good cold-working and hot-working forming performance, and good dezincification corrosion-resistant and stress corrosion-resistant performance, applies to parts that require cutting and grinding forming in water-heating sanitaryware, electronic appliances, automobiles and the like, and especially applies to production and assembling of complex forging products for which stress is inconvenient to eliminate, such as water taps, values and the like.

Abstract: 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%<X<39.5%, and X=(B+?CiKi/(A+B+?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.

Abstract: The present invention provides a lead-free easy-to-cut corrosion-resistant brass alloy with good thermoforming performance. The brass alloy contains: 74.5-76.5 wt % of Cu, 3.0-3.5 wt % of Si, 0.11-0.2 wt % of Fe, 0.04-0.10% wt % of P, Zn and inevitable impurities. The alloy provided by the present invention has good cold-working and hot-working forming performance, and good dezincification corrosion-resistant and stress corrosion-resistant performance, applies to parts that require cutting and grinding forming in water-heating sanitaryware, electronic appliances, automobiles and the like, and especially applies to production and assembling of complex forging products for which stress is inconvenient to eliminate, such as water taps, values and the like.

Abstract: The present invention provides an environment-friendly manganese brass alloy, which comprises 55˜65 wt % of Cu, 1.0˜6.5 wt % of Mn, 0.2˜3.0 wt % of Al, 0˜3.0 wt % of Fe, 0.3˜2.0 wt % of Sn, 0.01˜0.3 wt % of Mg, 0˜0.3 wt % of Bi and/or 0˜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.

Abstract: The present invention provides an environment-friendly manganese brass alloy, which comprises 55˜65 wt % of Cu, 1.0˜6.5 wt % of Mn, 0.2˜3.0 wt % of Al, 0˜3.0 wt % of Fe, 0.3˜2.0 wt % of Sn, 0.01˜0.3 wt % of Mg, 0˜0.3 wt % of Bi and/or 0˜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.