4340 Normalized TubeHeavy

Alloy Steel

AISI 4340 (Normalized)

AISI 4340 Normalized TubeHeavy for engineering applications.

Chemical Composition (%)

C0.37
CR0.6
MN0.55
MO0.2
NI1.65
SI0.15

Mechanical Properties

Yield:490MPa; Tensile:775MPa; Elong:22%; 55HRC

Chinese Standard

AISI/SAE

Applications

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

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