AISI 3140 Steel — Specifications & Listings

AISI

AISI 3140 is a nickel-chromium alloy steel with good toughness and fatigue resistance. It can be heat treated to achieve higher mechanical strength.

Category: Alloy Steel

Grade Details

Grade	AISI 3140
Standard	AISI
Description	AISI 3140 is a nickel-chromium alloy steel with good toughness and fatigue resistance. It can be heat treated to achieve higher mechanical strength.
Applications	Used for gears, shafts, axles, connecting rods, forgings, and heavy-duty machinery parts.

Chemical Composition (%)

C	Mn	Si	Ni	Cr	P	S
0.38-0.43	0.50-0.80	0.15-0.35	1.10-1.40	0.40-0.60	0.035 max	0.040 max

Mechanical Properties

Active AISI 3140 Listings on M-EX

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