供应590R-RS酸洗卷590R-RS宝钢

Q/BQB 310－20184表 2型号成分 a（摩尔质量） ％C Si Mn P S AltSAPH310 ≤0.10 ≤0.30 ≤0.80≤0.025 ≤0.020≥0.010SAPH370 ≤0.21 ≤0.30 ≤1.00SAPH400≤0.21 ≤0.30≤1.40≤0.025 ≤0.020SAPH440 ≤1.60SPFH540 ≤0.15 ≤0.50 ≤1.80SPFH590 ≤0.18 ≤0.60 ≤2.00 ≤0.025 ≤0.020SPFH780 ≤0.20 ≤1.00 ≤K ≤0.21 ≤0.35 ≤1.80 ≤0.025 ≤0.020B330CL ≤0.10 ≤0.30 ≤0.80B380CL ≤0.12 ≤0.30 ≤1.50 ≤0.025 ≤0.020B420CL ≤0.12 ≤0.30 ≤1.50B450CL ≤0.10 ≤0.30 ≤1.50 ≤0.025 ≤0.020B500CL ≤0.12 ≤0.30 ≤1.60 ≤0.025 ≤0.020B530CL ≤0.12 ≤0.30 ≤1.60 ≤0.025 ≤0.020B550CL ≤0.12 ≤0.30 ≤2.00 ≤0.025 ≤0.020B600CL ≤0.15 ≤0.30 ≤2.00 ≤0.025 ≤0.020B650CL ≤0.15 ≤0.50 ≤2.00 ≤0.025 ≤0.020B320L ≤0.10 ≤0.30 ≤0.80≤0.025≤0.020B420L ≤0.12 ≤0.50 ≤1.50 ≤0.020B510L ≤0.16 ≤0.50 ≤1.60 ≤0.020B510DL ≤0.18 ≤0.30 ≤1.60 ≤0.025 ≤0.020B550L ≤0.16 ≤0.50 ≤1.60 ≤0.025 ≤ZR ≤0.12 ≤0.50 ≤1.30≤0.025≤0.020 －B480QZR ≤0.16 ≤0.50 ≤1.50 ≤0.020a 为改进钢的特性，依据必须可加上别的铝合金原素，这时 Alt 的低限不规定。表 3型号成分 a（摩尔质量） ％C Si Mn P S Alt 别的QStE340TM≤0.12 ≤0.50≤1.30≤0.025 ≤0.020 ≥0.015Nb≤0.09V≤0.20Ti≤0.15QStE380TM ≤1.40QStE420TM ≤1.50QStE460TM ≤1.60QStE500TM ≤1.70a 为改进钢的特性，依据必须可加上 Nb、V、Ti 中一种或几类铝合金原素，但 Nb V Ti≤0.22%。Q/BQB 310－20185表 4型号成分 a （摩尔质量） ％C Mn Si P S Alt Nba Va Tia Mo BQStE550TMB610L(B600L) ≤0.12 ≤1.80 ≤0.50 ≤0.025 ≤0.015 ≥0.015 ≤0.09 ≤0.20 ≤0.15 － －QStE600TMB650L≤0.12 ≤1.90 ≤0.50 ≤0.025 ≤0.015 ≥0.015 ≤0.09 ≤0.20 ≤0.22 ≤0.50 ≤0.005QStE650TMB700L≤0.12 ≤2.00 ≤0.60 ≤0.025 ≤0.015 ≥0.015 ≤0.09 ≤0.20 ≤0.22 ≤0.50 ≤0.005QStE700TMB750L≤0.12 ≤2.10 ≤0.60 ≤0.025 ≤0.015 ≥0.015 ≤0.09 ≤0.20 ≤0.22 ≤0.50 ≤0.005a 钢中可加上 Nb、V、Ti 中一种或几类铝合金原素，但 Nb V Ti≤0.22。6.5 结构力学和使用性能6.5.1 厚钢板及钢链的结构力学和使用性能应合乎相对表 5～表 10 的要求。6.5.2 弯折实验后，试件的外表层不可有人眼的裂痕。供货方如能确保弯折实验达标，