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, Bars, Forgings, and Mechanical Tubing and Forging Stock Aircraft Quality 0.50Cr - 0.55Ni - 0.20Mo (0.13 - 0.18C) (SAE 8615)