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SAE AMS6427L
- Steel Bars, Forgings, and Tubing, 0.88Cr - 1.8Ni - 0.42Mo - 0.08V (0.25 - 0.33C) (4330 Mod)
- standard by SAE International, 12/21/2012
- Publisher: SAE
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This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.These products have been used typically for parts requiring a combination of high tensile strength and good ductility with relatively-high impact strength and hardness, but usage is not limited to such applications. Certain design and processing procedures may cause these products to become susceptible to stress-corrosion cracking after heat treatment. SAE ARP 1110 recommends practices to minimize such conditions.