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, Mechanical Tubing and Forging Stock, 0.92Cr - 0.75Ni - 0.52Mo - 0.003B - 0.04V (98BV40), Aircraft Quality