440a淬火硬化性能優(yōu)良、硬度高，較440b鋼和40c鋼有高的韌性。440b用于刃具、量具和軸承.較440a鋼硬度高，較440c鋼韌性高。用于刃具、閥門,440c具有所有不銹鋼、耐熱鋼中最高的硬度。用于噴嘴、軸承.440f:是提高440c鋼的易切性能的鋼種。用于自動車床.敝司經(jīng)銷有:日本,美國,德國,韓國,南非等國不銹鋼:sus301,301l,301j1,sus302,302b,sus303,303se,sus304,304l,304j1,304j2,304n1,304n2,304ln,sus305,sus309,309s,sus310,310s,sus315,315j1,315j2,sus316,316l,316n,316ln,316ti,316j1,316j1l,sus317,317l,317ln,317j1,317j2,317j3l,sus836l,sus890l,sus321,321ti,sus347,sus xm7,sus xm15j1,sus329j1等奧氏體不銹鋼板.棒.卷.角.管.條.角材，sus405,sus410l,sus429,sus430,,430l,430f,430lx,430j1l,430fmo,sus434,sus436,436l,436j1l,sus443,sus444,sus445j1,445j2,sus447j1,sus xm27等鐵素體不銹鋼板.棒.卷.管.材,sus403,sus410,410s,sus420,420c,420j1,420j2,sus429j1,sus440,440a,440b,440c,440f等馬氏體不銹鋼板.棒.卷.角.管.條.角材，敞司一貫堅持如下理念:質(zhì)量上嚴苛要求,在價格上放底利潤,在服務上力求更好,在交貨上更加及時.