标准摘要
This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.Cross Reference: AMS2251,AMS2253,AMS2259,AMS2301,AMS2370,AMS2372,AMS2806,AMS2808,AMSH6875,ARP1110,AS1182,ASTMA255,ASTMA370,ASTME112,ASTME350,ASTME381,ASTME384
英文名称Steel, Bars, Forgings, Mechanical Tubing, and Forging Stock 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340) Normalized and Tempered