4140 H

Alloy Steel

AISI 4140 (H-series)

H-series 4140 optimized for hollow-section and tubular applications.

Chemical Composition (%)

C0.37
CR0.75
MN0.65
MO0.15
SI0.15

Mechanical Properties

Yield:415MPa; Tensile:655MPa; Elong:25%; 197HB

Chinese Standard

AISI/SAE

Applications

Tubular products, hollow shafts

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