1普通结构用碳素钢:SS330 SS400 SS490 SS540
2低合金高强度钢和耐候钢:SHY685 SHY685N SHY685NS / SMA400AW SMA400BW SMA400CW
SMA400AP SMA400BP SMA400CP SMA490AW SMA490BW SMA490CW SMA490AP SMA490BP SMA490CP SMA570W
SMA570P
3碳素结构钢:SM9CK SM15CK SM20CK SM10C SM12C SM15C SM17C SM20C SM22C SM25C
SM28C SM30C SM33C SM35C SM38C SM40C SM43C SM45C SM48C SM50C SM53C SM55C SM58C
4合金结构钢:SCr415 SCr420 SCr430 SCr435 SCr440 SCr445 SNC236 SNC415 SNC631
SNC815 SNC836 SNCM220 SNCM240 SNCM415 SNCM420 SNCM431 SNCM439 SNCM447 SNCM616
SNCM625 SNCM630 SNCM815 SCM415 SCM418 SCM420 SCM421 SCM430 SCM432 SCM435 SCM440
SCM445 SCM822 SMn420 SMn433 SMn438 SMn443 SMnC420 SMnC443 SACM645
5保证淬透性结构钢(H钢):SCr415H SCr420H SCr430H SCr435H SCr440H SNC415H SNC631H SNC815H
SNCM220H SNCM420H SCM415H SCM418H SCM420H SCM435H SCM440H SCM445H SCM822H
SMn420H SMn433H SMn438H SMn443H SMnC420H SMnC443H
6易切削结构钢:SUM11 SUM12 SUM21 SUM22 SUM22L SUM23 SUM23L SUM24L SUM25 SUM31 SUM31L
SUM32 SUM41 SUM42 SUM43
7冷镦钢:SWRCH6R SWRCH8R SWRCH10R SWRCH12R SWRCH15R SWRCH17R
SWRCH6A SWRCH8A SWRCH10A SWRCH12A SWRCH15A SWRCH16A SWRCH18A SWRCH19A SWRCH20A SWRCH22A SWRCH10K SWRCH12K SWRCH15K SWRCH16K SWRCH17K SWRCH18K SWRCH20K SWRCH22K SWRCH24K SWRCH25K SWRCH27K SWRCH30K SWRCH33K SWRCH35K SWRCH38K SWRCH40K SWRCH41K SWRCH43K SWRCH45K SWRCH48K SWRCH50K
SCM420一般在调质或渗碳淬火状态下使用,用于制造在非腐蚀性介质及工作温度低于 250℃、含有氮氢混合物的介质中工作的高压管及各种紧固件、较高级的渗碳零件,如齿轮、轴等。
SCM421常用于制造要求表面硬度高、耐磨性能好的重要渗碳件,如齿轮、凸轮轴连杆、销等。