440A淬火硬化性能優良、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，公司秉承：質量至上，服務為先，交貨及時，信用無邊。為基本原則，努力為客戶創造更好，更為完善的購物環境。