日本標準性軋制鋼 SPA-H SPA-C
碳素結構鋼 S09CK S10C S12C S15C S17C S20C S20CK S22C S25C S28C S30C S33S S35C S38C S40C S43C S45C S48C S50C S53C S55C S58C
合金結構鋼 SMn420 SMn433 SMn438 SMn443 SMnC443 SCr415 SCr420 SCr430 SCr440 SCr445 SCM415 SCM418 SCM420 SCM421 SCM425 SCM430 SCM432 SCM435 SCM440 SCM445 SCM822 SNC236 SNC415 SNC631 SNC815 SNC836 SNCM220 SNCM415 SNCM420 SNCM431 SNCM439 SNCM447 SNCM616 SNCM625 SNCM630 SNCM815 SACM645
保証淬透性結構鋼
SMn420H SMn433H SMn438H SMn443H SMnC420H SMnC443H SCr415H SCr420H SCr430H SCr435H SCr440H SCM415H SCM418H SCM420H SCM425H SCM435H SCM440H SCM445H SCM822H SNC415H SNC631H SNC631H SNC815H SNCM220H SNCM420H
易切削鋼 SUN21 SUM22 SUM22L SUM23 SUM23L SUM24L SUM25 SUM31 SUM32 SUM41 SUM42 SUM43