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Cold Finish Alloy Steel Normalized Air Melt Round Rod 4340 (0.75") is an ultra-high strength material that when heat treated exhibits great toughness, good ductility, and good fatigue strength. 4340 alloy steel is fequently used in aerospace as well as for piston pins, bearings, ordnance, gears, dies, and pressure vessels.
This material is Cold Finished, Turned and Normalized.
View our "Guide to Alloy Steel" for available grades, shapes and additional information.
Mill Test Reports are available on this item and can be selected during the checkout process.
Material Meets These Standard(s): AMS 6415, ASTM A-29, ASTM A-322
|Dimensions||Weight/Lineal Foot: 1.5 lbs|
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WARNING: Cancer and Reproductive Harm -