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JIS G4104 SCr440 Steel - Specifications & Listings

JIS G4104 SCr440: SCr440 is a chromium alloy steel with good strength, hardenability, and wear resistance after heat treatment. It is suitable for medium duty power transmission applications.

Forms: Round Bar Category: Alloy Steel
Grade Details
GradeJIS G4104 SCr440
StandardJIS G4104
DescriptionSCr440 is a chromium alloy steel with good strength, hardenability, and wear resistance after heat treatment. It is suitable for medium duty power transmission applications.
ApplicationsUsed in gears, shafts, bolts, spindles, couplings, and machine structural parts.
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Chemical Composition (%)
C Si Mn P S Cr
0.38-0.43 0.15-0.35 0.60-0.85 0.030 max 0.030 max 0.90-1.20
Mechanical Properties
tensile_strength 800-950 MPa
yield_strength 590 MPa min
elongation 13% min
hardness 230-285 HB

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JIS G4104 SCr440 Round Bar
1.900 MT
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JIS G4104 SCr440 Round Bar
2.300 MT
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