供应日本碳素结构钢、合金结构钢：SMn420

供应日本碳素结构钢：S09CK S10C S12C S15C S15CK S17C S20C S20CK S22C S25C S28C S30C S33C S35C S38C S40C S43C S45C S48C S50C S53C S55C S58C 
合金结构钢：SMn420 SMn433 SMn438 SMn443 SMnC420 SMnC443 SCr415 SCr420 SCr430 SCr435 SCr440 SCr445 SCM415 SCM418 SCM420 SCM421 SCM425 SCM430 SCM432 SCM435 SCM440 SCM445 SCM822 SNC236 SNC415 SNC631 SNC815 SNC836 SNCM220 SNCM240 SNCM415 SNCM420 SNCM431 SNCM439 SNCM447 SNCM616 SNCM625 SNCM630 SNCM815 SACM645
碳素钢：广泛用于制造薄板，钢筋，钢结构用各种型钢，建筑结构，桥梁，机座，机械零件，渗碳或碳氮共渗零件，焊接件，支架，受力不大的拉杆，连杆、销、轴、螺钉、螺母、套圈等     性能特点：具有较高的强度，硬度，较好的耐磨性，一定的焊接性和可加工性，小型零件可以淬火强化，塑性和韧性较差。