易削切钢 序 号 牌号 化学成分Wt % C Mn Si S P 1 Y12 0.08~0.16 0.70~1.00 0.15~0.35 0.10~0.20 0.08~0.15 2 Y15 0.10~0.18 0.80~1.20 ≤0.15 0.23~0.33 0.05~0.10 3 SAE 1212 ≤0.13 0.70~1.00 0.16~0.23 0.07~0.12 4 SAE 1213 ≤0.13 0.70~1.00 0.24~0.33 0.07~0.12 5 SAE 1215 ≤0.09 0.75~1.05 0.26~0.35 0.04~0.09 6 SAE 1117 0.14~0.20 1.00~1.30 0.08~0.13 ≤0.030 7 SAE 118 0.14~0.20 1.30~1.60 0.08~0.13 ≤0.030 8 SAE 1141 0.37~0.45 1.35~1.65 0.24~0.33 ≤0.030 12L14、Y15Pb易切削钢 化学成分（熔炼分析）Wt % 牌号 C Si Mn Pb S P 12L14 出厂成分 ≤0.15 ≤0.15 0.85~1.15 0.15~0.35 0.26~0.33 0.04~0.09 内控要求 ≤0.10 ≤0.08 1.05~1.15 0.24~0.28 0.26~0.30 0.05~0.06 Y15Pb 出厂成分 0.10~0.18 ≤0.15 0.80~1.20 0.15~0.35 0.23~0.33 0.05~0.10 内控要求 0.10~0.15 ≤0.10 1.05~1.15 0.24~0.28 0.26~0.30 0.05~0.06
