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

耐候钢（即耐大气腐蚀钢）在融入现代冶金新机制、新技术和新工艺后得以可持续发展和创新，属世界超级钢技术前沿水平的系列钢种之一。耐候钢由普碳钢添加少量铜、镍等耐腐蚀元素而成，具有优质钢的强韧、塑延、成型、焊割、磨蚀、高温、疲劳等特性；耐候性为普碳钢的2~8倍，涂装性为普碳钢的1.5~10倍，能减薄使用、裸露使用或简化涂装使用。该钢种具有耐锈，使构件抗腐蚀延​寿、减薄降耗，省工节能的特性，使构件制造者、使用者受益。​