Abstract: A dezincification-resistant copper alloy and a method for producing a product containing the same are proposed by the present invention. The dezincification-resistant alloy of the present invention contains 59.5 to 64 wt % of copper (Cu); 0.1 to 0.5 wt % of bismuth (Bi); 0.08 to 0.16 wt % of arsenic (As); 5 to 15 ppm of boron (B); 0.3 to 1.5 wt % of tin (Sn); 0.1 to 0.7 wt % of zirconium (Zr); less than 0.05 wt % of lead (Pb); and zinc (Zn) in balance. The dezincification-resistant copper alloy of the present invention has excellent casting properties, good toughness and machinability, and can be corrosion-resistant. Thus, the alloy can reduce dezincification on the surfaces.

Abstract: The present invention provides a lead-free brass alloy, including 0.3 to 0.8 wt % of aluminum, 0.01 to 0.4 wt % of bismuth, 0.05 to 1.5 wt % of iron and more than 96 wt % of copper and zinc, wherein the copper is present in an amount ranging from 58 to 75 wt %. The brass alloy of the present invention meets the standard of the environmental regulation, wherein the lead content is less than 0.25 wt % based on the weight of the alloy. Further, the brass alloy of the present invention has 0.05 to 1.5 wt % of iron and less than 0.4% of bismuth, so as to lower production cost, eliminate cracks and increase production yield.

Abstract: The present invention provides a lead-free brass alloy, including 0.3 to 0.8 wt % of aluminum, 0.01 to 0.4 wt % of bismuth, 0.05 to 1.5 wt % of iron and more than 96 wt % of copper and zinc, wherein the copper is present in an amount ranging from 58 to 75 wt %. The brass alloy of the present invention meets the standard of the environmental regulation, wherein the lead content is less than 0.25 wt % based on the weight of the alloy. Further, the brass alloy of the present invention has 0.05 to 1.5 wt % of iron and less than 0.4% of bismuth, so as to lower production cost, eliminate cracks and increase production yield.

Abstract: The present invention provides a low-lead copper alloy, comprising 0.05 to 0.3 wt % of lead (Pb), 0.3 to 0.8 wt % of aluminum (Al), 0.01 to 0.4 wt % of bismuth (Bi), 0.1 to 2 wt % of nickel (Ni), and more than 96.5 wt % of copper (Cu) and zinc (Zn), wherein copper is in an amount ranging from 58 to 70 wt %. The low-lead copper alloy of the present invention has excellent material properties as well as good toughness and processability, thereby increasing the alloy strength and corrosion resistance thereof.

Abstract: The present invention provides a low-lead copper alloy, which includes 0.05 to 0.3 wt % of lead, 0.3 to 0.8 wt % of aluminum, 0.01 to 3 wt % of bismuth, 1 to 4 wt % of silicon, 0.1 to 1 wt % of tin, and more than 93.6% of copper and zinc, wherein copper is in an amount ranging from 61 to 78 wt %. The low-lead copper alloy of the present invention has excellent toughness and processability, and can provide increased resistance in an environment with a high concentration of chlorine ions.

Abstract: A dezincification-resistant copper alloy is provided. The copper alloy comprises less than 0.3 wt % of lead (Pb), 0.02 to 0.15 wt % of antimony (Sb), 0.02 to 0.25 wt % of arsenic (As), 0.4 to 0.8 wt % of aluminum (Al), 1 to 20 ppm of boron (B), and more than 97 wt % of copper (Cu) and zinc (Zn), wherein the copper is in an amount ranging from 58 to 70 wt %. The dezincification-resistant copper alloy of the present invention has excellent casting properties, good toughness and machinability, and can be corrosion-resistant, thereby reducing dezincification on the surfaces of the alloy.

Abstract: A dezincification-resistant copper alloy and a method for producing a product comprising the same are proposed by the present invention. The dezincification-resistant alloy of the present invention comprises 59.5 to 64 wt % of copper (Cu); 0.1 to 0.5 wt % of bismuth (Bi); 0.08 to 0.16 wt % of arsenic (As); 5 to 15 ppm of boron (B); 0.3 to 1.5 wt % of tin (Sn); 0.1 to 0.7 wt % of zirconium (Zr); less than 0.05 wt % of lead (Pb); and zinc (Zn) in balance. The dezincification-resistant copper alloy of the present invention has excellent casting properties, good toughness and machinability, and can be corrosion-resistant. Thus, the alloy can reduce dezincification on the surfaces thereof.

Abstract: A low lead brass alloy and a method for producing a product comprising the low lead brass alloy are proposed. The low lead brass comprises 0.05 to 0.3 wt % of lead (Pb); 0.3 to 0.8 wt % of aluminum (Al); 0.01 to 0.4 wt % of bismuth (Bi); 0.1 to 0.15 wt % of microelements; and more than 97.5 wt % of copper (Cu) and zinc (Zn), wherein copper is in an amount ranging from 58 to 70 wt %.