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Free 45Mn steel chemical composition and equivalent grade steel plate

45Mn steel carbon content: 0.42%-0.50%, the strength, toughness and hardenability are higher than 45 steel, quenching and tempering treatment can obtain better comprehensive mechanical properties, good workability, but poor weldability, generally used for comparison Parts under heavy load and wear-resistant working conditions, such as crankshafts, splined shafts, shafts, connecting rods, universal joint shafts, automobile half shafts, gears, clutch discs, bolts, nuts, etc.

45Mn steel chemical composition: C: 0.42-0.50; Si: 0.17-0.37; Mn: 0.70-1.00; Cr≤0.25; Ni≤0.30; Cu≤0.25.

45Mn steel mechanical properties: Tensile strength: 620mpa Yield strength: 375mpa Elongation after break: 15% Area shrinkage: 40% Impact absorption energy: 39J.

Chinese grade: 45Mn Standard: GB/T699-1999
US Grade: 1046 Standard: ASTM A29/ A29M-02
Japanese grade: SWRCH45K Standard: JIS G3507/1-2005
German grade: C45 Standard: EN 10083/2-1991

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