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JIS G4053:2008 SMnC420 Steel: Specifications & Listings

JIS G4053:2008 SMnC420: Japanese case hardening Mn-Cr steel per JIS G4053. Close equivalent to 20MnCr5 with similar chemistry and case hardening properties.

Forms: Round Bar Category: Alloy Steel
Grade Details
GradeJIS G4053:2008 SMnC420
Standard JIS G4053:2008
ApplicationsCase hardened gears, shafts, cams, pins, automotive components
Most Active InNorth (Punjab)
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
GB/T 3077 20CrMnTi GB/T 3077:2015 China 2 listings, 0 RFQs →
Supply & Demand by FormSee Full Supply & Demand →
Round Bar →
Low Activity
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
EN 10084 20MnCr5 EN 10084:2008 Strong Match
EN 10084 20MnCrS5 EN 10084:2008 Strong Match
BS 970 EN207 BS 970:1955 Close Alternative
SAE J404 5120 SAE J404:2009 Close Alternative
SAE J404 5120 SAE J404:2000 Close Alternative
EN 10084 28Cr4 EN 10084:2008 Close Alternative
EN 10084 28CrS4 EN 10084:2008 Close Alternative
BS 970 (Part 1) 523H15 BS 970 (Part 1):1991 Close Alternative
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C Mn Cr Si S P
0.17–0.23 1.15–1.55 0.35–0.70 0.15–0.35 ≤0.030 ≤0.030
Mechanical Properties
Tensile Strength 785–980 MPa
Case Hardness HRC 58–62
Core Hardness HB 217–277
Elongation ≥10%
Typical Available Sizes
Round Bar 16mm–200mm dia
Sizes are indicative. Contact seller for exact availability.

Popular forms for this grade:

Round Bar (2)

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Buyer RFQs for JIS G4053:2008 SMnC420

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JIS G4053:2008 SMnC420 Round Bar
2.300 MT
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JIS G4053:2008 SMnC420 Round Bar
1.500 MT
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