标准摘要
This specification covers an age-hardenable nitriding grade of aircraft-quality, 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 Aircraft Quality 1.1Cr - 3.5Ni - 0.25Mo - 1.2Al (0.21 - 0.26C)