Domestic valve materials commonly used technical standards casting copper alloy technical conditions (Table 2) Grinding Steel Ball,Abrasive Steel Ball,Hot Rolling Steel Ball SHANDONG SHENGYE GRINDING BALL CO., LTD , https://www.shengysteelball.com Serial number Alloy grade Impurity limit,% is not greater than iron aluminum antimony silicon phosphorus sulfur arsenic carbon bismuth nickel tin Zinc lead manganese sum 1 ZCuSn3Zn8Pb6Ni1 0.4 0.02 0.3 0.02 0.05          1.0 2 ZCuSn3Zn11Pb4 0.5 0.02 0.3 0.02 0.05          1.0 3 ZCuSn5Pb5Zn5 0.3 0.01 0.25 0.01 0.05 0.10    2.5 *     1.0 4 ZCuSn5Pb5 0.1 0.01 0.05 0.02  0.05    0.10  0.05 0.25 0.05 0.75 5 ZCuSn10Pb5 0.3 0.02 0.3  0.05       1.0 *   1.0 6 ZCuSn10Zn2 0.25 0.01 0.3 0.01 0.05 0.10    2.0 *   1.5 * 0.2 1.0 7 ZCuPb10Sn10 0.25 0.01 0.5 0.01 0.05 0.10    2.0 *  2.0 *  0.2 1.0 8 ZCuPb15Sn8 0.25 0.01 0.5 0.01 0.10 0.10    2.0 *  2.0 *  0.2 1.0 9 ZCuPb17Sn4Zn4 0.4 0.05 0.3 0.02 0.05          0.75 10 ZCuPb20Sn5 0.25 0.01 0.75 0.01 0.10 0.10    2.5 *  2.0 *  0.2 1.0 11 ZCuPb30 0.5 0.01 0.2 0.02 0.08  0.10  0.005  1.0 *   0.3 1.0 12 ZCuAl8Mn13Fe  ã€Print】 ã€Close】
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