4820 QT

Alloy Steel

AISI 4820 Quenched & Tempered

Quenched and tempered 4820 for high-strength applications.

Chemical Composition (%)

C0.18
MN0.4
MO0.2
NI3.25
SI0.15

Mechanical Properties

Yield:550MPa; Tensile:800MPa; Elong:22%; 58HRC

Chinese Standard

AISI/SAE

Applications

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

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