J17080 (GB Alloy Steel 30Cr-50Cr Hardened & Tempered Strip Size 4)

Alloy Steel

GB Alloy Steel 30Cr-50Cr Hardened & Tempered Strip Size 4

Versatile low-alloy structural and engineering steel for demanding mechanical applications.

Chemical Composition (%)

C0.32
CR0.8
MN0.5

Mechanical Properties

Yield:745MPa; Tensile:985MPa; Elong:15%; 58HRC

Chinese Standard

GB/T 3077

Applications

Shafts, gears, axles, bolts, connecting rods, crankshafts, forgings

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