SUP7彈簧鋼日本彈簧鋼SUP7彈簧鋼性能 材料名稱： SUP7 　特性及適用范圍： 　　SUP7是應用廣泛的硅錳彈簧鋼，強度、彈性和淬透性較 55Si2Mn稍高。適于鐵道車輛、汽車拖拉機工業上制作承受較大負荷的扁形彈簧或線徑在30mm以下的螺旋彈簧、也適于制作工作溫度在250 ℃以下非腐蝕介質中的耐熱彈簧以及承受交變負荷及在高應力下工作的大型重要卷制彈簧。 　化學成份： 　　碳 C ：0.56～0.64 硅 Si：1.50～2.00 　　錳 Mn：0.60～0.90 　　硫 S ：≤0.035 　　磷 P ：≤0.035 　　鉻 Cr：≤0.35 　　鎳 Ni：≤0.35 　　銅 Cu：≤0.25 　力學性能： 　　抗拉強度 σb (MPa)：≥1274(130) 　　屈服強度 σs (MPa)：≥1176(120) 　　伸長率 δ10 (%)：≥5 　　斷面收縮率 ψ (%)：≥25 　　硬度 ：熱軋,≤321HB;冷拉 熱處理,≤321HB 　熱處理規范及金相組織： 　　熱處理規范：淬火870℃±20℃,油冷; 回火480℃±50℃(特殊需要時,±30℃)。 　　金相組織：回火屈氏體。 　交貨狀態：熱軋鋼材以熱處理或不熱處理狀態交貨，冷拉鋼材以熱處理狀態交貨。 SUP7榮創鋼帶0.2*160/180/200/262鋼板1*(200MM-2.1M)*(1M-6M) SUP7榮創鋼帶0.3*160/180/200/262鋼板1*(200MM-2.1M)*(1M-6M) SUP7榮創鋼帶0.4*160/180/200/262鋼板1*(200MM-2.1M)*(1M-6M) SUP7榮創鋼帶0.5*160/180/200/262鋼板1*(200MM-2.1M)*(1M-6M) SUP7榮創鋼帶0.6*160/180/200/262鋼板1*(200MM-2.1M)*(1M-6M) SUP7榮創鋼帶0.7*160/180/200/262鋼板1*(200MM-2.1M)*(1M-6M) SUP7榮創鋼帶0.8*160/180/200/262鋼板1*(200MM-2.1M)*(1M-6M) SUP7榮創鋼帶1.0*160/180/200/262鋼板1*(200MM-2.1M)*(1M-6M) SUP7榮創鋼帶1.2*160/180/200/262鋼板1*(200MM-2.1M)*(1M-6M) SUP7榮創鋼帶1.3*160/180/200/262鋼板1*(200MM-2.1M)*(1M-6M) SUP7榮創鋼帶1.4*160/180/200/262鋼板1*(200MM-2.1M)*(1M-6M) SUP7榮創鋼帶1.5*160/180/200/262鋼板1*(200MM-2.1M)*(1M-6M) SUP7榮創鋼帶1.6*160/180/200/262鋼板1*(200MM-2.1M)*(1M-6M) SUP7榮創鋼帶1.7*160/180/200/262鋼板1*(200MM-2.1M)*(1M-6M) SUP7榮創鋼帶1.8*160/180/200/262鋼板1*(200MM-2.1M)*(1M-6M) SUP7榮創鋼帶2.0*160/180/200/262鋼板1*(200MM-2.1M)*(1M-6M) SUP7榮創鋼帶2.2*160/180/200/262鋼板1*(200MM-2.1M)*(1M-6M) SUP7榮創鋼帶2.5*160/180/200/262鋼板1*(200MM-2.1M)*(1M-6M) SUP7榮創鋼帶2.6*160/180/200/262鋼板1*(200MM-2.1M)*(1M-6M) SUP7榮創鋼帶2.8*160/180/200/262鋼板1*(200MM-2.1M)*(1M-6M) SUP7榮創鋼帶3.0*160/180/200/262鋼板1*(200MM-2.1M)*(1M-6M) SUP7榮創鋼帶3.5*160/180/200/262鋼板1*(200MM-2.1M)*(1M-6M) SUP7榮創鋼帶4.0*160/180/200/262鋼板1*(200MM-2.1M)*(1M-6M) SUP7榮創鋼帶4.5*160/180/200/262鋼板1*(200MM-2.1M)*(1M-6M) SUP7榮創鋼帶5.0*160/180/200/262鋼板1*(200MM-2.1M)*(1M-6M) SUP7