镀锌HX260YD汽车冲压

 免费提供所有产品试模测试                                                                4 分类和代号 4.1 钢板及钢带按用途区分应符合表1的规定。 4.2 钢板及钢带按表面质量区分应符合表2的规定。 表1 牌 号 a 钢种特点 DC51D+Z, DC51D+ZM, DC51D+ZF, DD51D+Z 低碳钢 DC52D+Z, DC52D+ZM, DC52D+ZF 低碳钢或无间隙原子钢 DC53D+Z, DC53D+ZM, DC53D+ZF DC54D+Z, DC54D+ZM, DC54D+ZF DC56D+Z, DC56D+ZM, DC56D+ZF 无间隙原子钢 DC57D+Z, DC57D+ZM, DC57D+ZF S220GD+Z, S220GD+ZM, S220GD+ZF 碳素结构钢或低合金钢 S250GD+Z, S250GD+ZM, S250GD+ZF S280GD+Z, S280GD+ZM, S280GD+ZF S320GD+Z, S320GD+ZM, S320GD+ZF S350GD+Z, S350GD+ZM, S350GD+ZF S550GD+Z, S550GD+ZM HC180YD+Z, HC180YD+ZM, HC180YD+ZF 高强度无间隙原子钢或碳锰钢 HC220YD+Z, HC220YD+ZM, HC220YD+ZF B240P1D+Z, B240P1D+ZM, B240P1D+ZF B260LYD+Z, B260LYD+ZM, B260LYD+ZF HC260YD+Z, HC260YD+ZM, HC260YD+ZF HC180BD+Z, HC180BD+ZM, HC180BD+ZF 烘烤硬化钢 HC220BD+Z, HC220BD+ZM, HC220BD+ZF HC260BD+Z, HC260BD+ZM, HC260BD+ZF HC300BD+Z, HC300BD+ZM, HC300BD+ZF Q/BQB 420—2018 4 表1（续） 牌 号 a 钢种特点 HC260LAD+Z, HC260LAD+ZM, HC260LAD+ZF 低合金高强度钢 HC300LAD+Z, HC300LAD+ZM, HC300LAD+ZF HC340LAD+Z, HC340LAD+ZM, HC340LAD+ZF, HD340LAD+Z HC380LAD+Z, HC380LAD+ZM, HC380LAD+ZF HC420LAD+Z, HC420LAD+ZM, HC420LAD+ZF, HD410LAD+Z HC460LAD+Z, HC460LAD+ZM, HC460LAD+ZF HC500LAD+Z, HC500LAD+ZM, HC500LAD+ZF HD550LAD+Z HC250/450DPD+Z, HC250/450DPD+ZM, HC250/450DPD+ZF 双相钢 HC300/500DPD+Z, HC300/500DPD+ZM, HC300/500DPD+ZF HC280/590DPD+Z, HC280/590DPD+ZM, HC280/590DPD+ZF HC340/590DPD+Z, HC340/590DPD+ZM, HC340/590DPD+ZF B340/590DPD+Z, B340/590DPD+ZM, B340/590DPD+ZF HC420/780DPD+Z, HC420/780DPD+ZF HC500/780DPD+Z, HC500/780DPD+ZF HC550/980DPD+Z, HC550/980DPD+ZF HC650/980DPD+Z, HC650/980DPD+ZF HC700/980DPD+Z, HC700/980DPD+ZF HC740/1180DPD+Z, HC740/1180DPD+ZF HC820/1180DPD+Z, HC820/1180DPD+ZF HC380/590TRD+Z, HC380/590TRD+ZF HC400/690TRD+Z, HC400/690TRD+ZF 相变诱导塑性钢 HC420/780TRD+Z, HC420/780TRD+ZF HC570/780CPD+Z HC780/980CPD+Z 复相钢 HD660/760CPD+Z HC600/980QPD+Z 淬火延性钢 HC600/980QP-ELD+Z HC820/1180QPD+Z HC820/1180QP-ELD+Z aDD51D+Z、HD340LAD+Z、HD410LAD+Z、HD550LAD+Z、HD660/760CPD+Z 为热轧酸洗基板，其余均为冷轧基板。 表2 级别 代号 较的精整表面(Normal) FB 的精整表面(Improved) FC 超的精整表面(Best) FD 耐指纹产品表面 FN 4.3 钢板及钢带按镀层种类、镀层重量表示方法、表面结构、表面处理区分应符合表3规定。