E4340 QT

Alloy Steel

AISI E4340 Quenched & Tempered

Quenched and tempered E4340 for high-strength applications.

Chemical Composition (%)

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

Mechanical Properties

Yield:610MPa; Tensile:960MPa; Elong:24%; 58HRC

Chinese Standard

AISI/SAE

Applications

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

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