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common steel alloys 4340 alloy steel

Description: AISI/SAE 4340 Alloy Steel 4340 Steel Properties | All General characteristics of Alloy Steel 4340. 4340 is a nickelchromiummolybdenum alloy steel known for its toughness and its ability to attain high strengths in the heattreated condition. It has very good fatigue resistance.

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