本SAE推荐规程涵盖了用于制造发动机气门弹簧和其他在中等高温下使用且要求高疲劳性能的弹簧的油回火铬钒气门弹簧质量钢丝的机械和化学要求。它还涵盖了用这种金属丝制造的弹簧的加工要求。

This SAE Recommended Practice covers the mechanical and chemical requirements of oil-tempered chromium-vanadium valve spring quality wire used for the manufacture of engine valve springs and other springs used at moderately elevated temperatures and requiring high fatigue properties. It also covers the processing requirements of spring fabricated from this wire.