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AISI 3140 Steel — Specifications & Listings

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

Forms: Round Bar Category: Alloy Steel
Grade Details
GradeAISI 3140
StandardAISI
DescriptionAISI 3140 is a nickel-chromium alloy steel with good toughness and fatigue resistance. It can be heat treated to achieve higher mechanical strength.
ApplicationsUsed 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
tensile_strength 850-1000 MPa
yield_strength 650-800 MPa
elongation 12-18%
hardness 240-300 HB

Active AISI 3140 Listings on M-EX

AISI 3140 Round Bar
3.300 MT
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AISI 3140 Round Bar
3.700 MT
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