牌號 | 化學成分(質量分數)(%) | |||||
C | Si | Mn | S | P | Pb | |
Y12 | O.08~O.16 | 0.15~O.35 | 0.70~1.00 | 0.10~0.20 | O.08~0.15 | |
Y12Pb | 0.08~0.16 | ≤0.15 | 0.70~1.10 | O.15~0.25 | O.05 | 0.15~O.35 |
Y15 | 0.10~O.18 | ≤O.15 | 0.80~1.20 | O.23~O.33 | ||
Y15Pb | O.10~O.18 | ≤O.15 | O.80~1.20 | 0.23~0.33 | 0.10 | O.15~0.35 |
Y20 | O.17~0.25 | O.15~O.35 | O.70~1.00 | O.08~0.15 | ≤0.06 | |
Y30 | 0.27~O.35 | 0.15~O.35 | O.70~1.00 | O.08~O.15 | ≤O.06 | |
Y35 | 0.32~0.40 | O.15~0.35 | O.70~1.00 | O.08~O.15 | ≤0.06 | |
Y40Mn | 0.37~O.45 | 0.15~O.35 | 1.20~1.55 | 0.20~0.30 | ≤O.05 | |
Y45Ca | 0.42~0.50 | O.20~O.40 | O.60~0.90 | 0.04~0.08 | ≤O.04 | Ca0.002~0.006 |
牌號 | 抗拉強度ób/MPa | 伸長率δ5(%)≥ | 斷面收縮率Ψ(%)≥ | 布氏硬度HBS≤ |
Y12 | 390~540 | 22 | 36 | 170 |
Y12Pb | 390~540 | 22 | 36 | 170 |
Y15 | 390~540 | 22 | 36 | 170 |
Y15Pb | 390~540 | 22 | 36 | 170 |
Y20 | 450~600 | 20 | 30 | 175 |
Y30 | 510~655 | 15 | 25 | 187 |
Y35 | 510~655 | 14 | 22 | 187 |
Y40Mn | 590~735 | 14 | 20 | 207 |
Y45ca | 600~745 | 12 | 26 | 241 |
牌號 | 抗拉強度ób/MPa | 伸長率δ5(%)≥ | 布氏硬度HBS | ||
鋼材尺寸/mm | |||||
8~20 | >20~30 | >30 | |||
Y12 | 530~755 | 510~735 | 490~685 | 7.O | 152~217 |
Y12Pb | 530~755 | 510~735 | 490~685 | 7.0 | 152~217 |
Y15 | 530~755 | 510~735 | 490~685 | 7.O | 152~217 |
Y15Pb | 530~755 | 5lO~735 | 490~685 | 7.O | 152~217 |
Y20 | 570~785 | 530~745 | 510~705 | 7.O | 167~217 |
Y30 | 600~825 | 560~765 | 540~735 | 6.O | 174~223 |
Y35 | 625~845 | 590~785 | 570~765 | 6.0 | 176~229 |
Y45Ca | 695~920 | 655~855 | 635~835 | 6.O | 196~255 |