4320 QT

Alloy Steel

AISI 4320 Quenched & Tempered

Quenched and tempered 4320 for high-strength applications.

Chemical Composition (%)

C0.17
CR0.4
MN0.45
MO0.2
NI1.65
SI0.15

Mechanical Properties

Yield:570MPa; Tensile:800MPa; Elong:22%; 58HRC

Chinese Standard

AISI/SAE

Applications

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

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