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GB/T 3077 42CrMo Steel — Specifications & Listings

GB/T 3077Chromium-molybdenum alloy steel with high strength, toughness and fatigue resistance after heat treatment. Suitable for heavily loaded engineering and automotive components.

Forms: Round Bar Category: Alloy Steel
Grade Details
GradeGB/T 3077 42CrMo
StandardGB/T 3077
DescriptionChromium-molybdenum alloy steel with high strength, toughness and fatigue resistance after heat treatment. Suitable for heavily loaded engineering and automotive components.
Applicationsgears, heavy shafts, axles, bolts, pressure vessels, forgings
Equivalent / Similar Grades
Grade Standard Region
AISI 4140 AISI USA
42CrMo4 DIN EN 10083 Germany
SCM440 JIS G4105 Japan
708M40 BS970 UK
Chemical Composition (%)
C Si Mn S P Cr Mo
0.38-0.45 0.17-0.37 0.50-0.80 <=0.035 <=0.035 0.90-1.20 0.15-0.25
Mechanical Properties
tensile_strength >=1080 MPa
yield_strength >=930 MPa
elongation >=12%
hardness <=217 HB
impact_energy >=63 J
Typical Available Sizes
Round Bar 16-600 mm dia
Flat Bar 25-400 mm width
Sizes are indicative. Contact seller for exact availability.

Active GB/T 3077 42CrMo Listings on M-EX

GB/T 3077 42CrMo Round Bar
1.900 MT
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GB/T 3077 42CrMo Round Bar
3.200 MT
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