This specification covers a low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.
SAE AMS6409F
$42.00
Steel, Bars, Forgings, Mechanical Tubing and Forging Stock 0.80Cr – 1.8Ni – 0.25Mo (0.38 – 0.43C) (SAE 4340) Special Aircraft Quality Cleanliness Normalized and Tempered