國產(chǎn)閥門材料通用技術(shù)標(biāo)準(zhǔn)鑄銅合金技術(shù)條件（表2）

國產(chǎn)閥門常用材料技術(shù)標(biāo)準(zhǔn)鑄銅合金技術(shù)條件（表2）序列號合金級雜質(zhì)極限，％不大于鐵鋁銻硅磷硫砷碳鉍鎳錫鋅鉛錳1ZCuSn3Zn8Pb6Ni10.40.020.30.020 .051.02 ZCuSn3Zn11Pb40.50.020。 30.020.051.03 ZCuSn5Pb5Zn50.30.010.010.250.010.050.102.5 * 1.04 250.010.50.010.050.102.0 * 2.0 * 0.21.08ZCuPb15Sn80.250.010.50.51010.100.102.0 * 2.0 * 0.21.09ZCuPb17Sn4Zn40.40.050.30.020.020.050.7510ZCuPb20Sn50.250.01010 .750.010.100.102.5 * 2.0 * 0.21.011ZCuPb300.50.010 .20.020.080.100.0051.0 * 0.31.012ZCuAl8Mn13Fetdalign =“中間”樣式=“ padding-bottom：0px，line-height：20px，margin：0px，padding-left ：0px，右填充邊：0px，字體大?。?