标准摘要
This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.
英文名称Steel, Carburizing Grade, Bars, Forgings, Mechanical Tubing and Forging Stock, Aircraft Quality, 1.2Cr - 3.2Ni - 0.12Mo (0.14 - 0.20C) (9317)