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JIS G4103 SNCM439 Steel — Specifications & Listings

JIS G4103Japanese Ni-Cr-Mo high strength alloy steel

Forms: Round Bar Category: Alloy Steel
Grade Details
GradeJIS G4103 SNCM439
StandardJIS G4103
DescriptionJapanese Ni-Cr-Mo high strength alloy steel
ApplicationsCrankshafts, gears, heavy duty shafts, aircraft components
Equivalent / Similar Grades
Grade Standard Region
34CrNiMo6 DIN/EN Europe
EN24 BS970 UK
AISI 4340 SAE USA
SAE4340 SAE USA
IS 4367 40Ni2Cr1Mo28 IS 4367 India
GOST 4543 40XH GOST 4543 Russia
GB/T 3077 42CrMo GB/T 3077 China
Chemical Composition (%)
C Si Mn Cr Mo Ni
0.36–0.43 0.15–0.35 0.60–0.90 0.60–1.00 0.15–0.30 1.60–2.00
Mechanical Properties
Tensile Strength ≥980 MPa
Yield Strength ≥835 MPa
Elongation ≥12%
Hardness 293–352 HB
Typical Available Sizes
Round Bar 20mm–350mm dia
Flat Bar 25×10mm–250×75mm
Sizes are indicative. Contact seller for exact availability.

Active JIS G4103 SNCM439 Listings on M-EX

JIS G4103 SNCM439 Round Bar
1.900 MT
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JIS G4103 SNCM439 Round Bar
4.500 MT
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JIS G4103 SNCM439 Round Bar
1.700 MT
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