冷作模具钢 ASTM A29M 1008SWRCH30K SWRCH33K SWRCH35K SWRCH38K SWRCH40K SWRCH41K SWRCH43K SWRCH45K SWRCH48K SWRCH50K SNB5-1 SNB7-2 SNB16-3 SNB21-1 SNB22-1 SNB23-1 SNB24-1
弹簧钢：SUP3 SUP6 SUP7 SUP9 SUP9A SUP10 SUP11A SUP12 SUP1 SUJ1 SUJ2 SUJ3 SUJ4 SUJ5
硬化能特佳，大型模具裏外硬度均勻，晶粒细腻细致，咬花效果均勻，易加工，易拋光，可鍍硬鉻