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发明公开
CN108220767A 螺旋弹簧钢 有权

螺旋弹簧钢
摘要：
本发明提供一种螺旋弹簧钢，所述螺旋弹簧钢包含碳(C)：0.51重量％至0.57重量％，硅(Si)：1.35重量％至1.45重量％，锰(Mn)：0.95重量％至1.05重量％，磷(P)：0.003重量％至0.015重量％，硫(S)：0.003重量％至0.010重量％，铬(Cr)：0.70重量％至0.90重量％，铜(Cu)：0.30重量％至0.40重量％，钒(V)：0.10重量％至0.15重量％，铝(Al)：0.010％至0.040％，钛(Ti)：0.010％至0.033％，钼(Mo)：0.05重量％至0.15重量％，镍(Ni)：0.25重量％至0.35重量％，以及余量的铁(Fe)和不可避免的杂质以构成100％。本发明通过控制硅、锰、磷、硫、铬、铜、钒、铝、钛和钼的含量赋予本发明的螺旋弹簧钢具有改进的疲劳寿命和拉伸强度，且其重量可以相应减少，从而有助于减轻汽车的重量。
摘要（英）：

Disclosed herein is a coil spring steel, comprising, by weight, carbon (C): about 0.51% to about 0.57%, silicon (Si): about 1.35% to about 1.45%, manganese (Mn): about 0.95% to about 1.05%, phosphorus(P): from about 0.003% to about 0.015%, sulfur (S): from about 0.003% to about 0.010%, chromium (Cr): from about 0.70% to about 0.90%, copper (Cu): from about 0.30% to about 0.40%, vanadium (V): fromabout 0.10% to about 0.15%, aluminum (Al): from about 0.010% to about 0.040%, titanium (Ti) from about 0.010% to about 0.033%, molybdenum (Mo): from about 0.05% to about 0.15%, nickel (Ni): from about 0.25% to about 0.35%, and a balance of iron (Fe) and inevitable impurities to form 100%. The coil spring steel disclosed in the invention is improved in fatigue life and tensile strength by controlling content of silicon (Si), manganese (Mn), phosphorus (P), sulfur (S), chromium (Cr), copper (Cu), vanadium (V), aluminum (Al), titanium (Ti), and molybdenum (Mo); weight of the steel can be correspondingly reduced, and weight reduction of an automobile can be facilitated.

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