标准摘要
This specification covers an aircraft-quality nitriding grade low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.
英文名称Steel, Nitriding, Bars, Forgings, Mechanical Tubing, and Forging Stock 1.6Cr - 0.35Mo - 1.13Al (0.38 - 0.43C) (135 Mod) Aircraft Quality