标准摘要
This specification covers a premium aircraft-quality, low-alloy steel in the form of bars, forgings, and mechanical tubing 225 square inches (1452 cm2x) and under in cross-sectional area and forging stock of any size.
英文名称Steel, Bars, Forgings, Mechanical Tubing, and Forging Stock, 1.4Mn - 1.5Si - 0.30Cr - 1.8Ni - 0.40Mo (0.23 - 0.28C) (HY-TUF), Premium Aircraft-Quality, Consumable Electrode Vacuum Melted