GB40011 (40Cr Form4)

Alloy Steel

40Cr Form4

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

Chemical Composition (%)

C0.37
CR0.8
MN0.5

Mechanical Properties

Yield:355MPa; Tensile:575MPa; Elong:33%; 177HB

Chinese Standard

GB/T 3077

Applications

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

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