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JIS G4053 SMnC420 vs EN 10084 20MnCrS5

Strong Match — 87.6% match based on chemical composition and mechanical property overlap.

JIS G4053 SMnC420 (JIS G4053:2008) and EN 10084 20MnCrS5 (EN 10084:2008) are both steel grades. Both fall under the Alloy Steel category. JIS G4053 SMnC420 is typically used for case hardened gears, shafts, cams, pins, automotive components, while EN 10084 20MnCrS5 is commonly used for case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1). JIS G4053 SMnC420 is defined under Japanese Industrial Standards (JIS), originating from Japan, while EN 10084 20MnCrS5 is defined under European Standard (EN), originating from Europe.

As per chemical composition, JIS G4053 SMnC420 vs EN 10084 20MnCrS5 is a 81.5% match. As per mechanical properties, the match is 100%. Combined, this makes them a strong match overall at 87.6%.

Frequently Compared With JIS G4053 SMnC420:
UNI 11234 100Cr6 GOST 4543 12HN3A GB/T 3077 12Cr2Ni4A NF A35-565 100C6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10 IS 1570 (Part 4) 07Cr4Mo6
Match Breakdown
CHEMISTRY MATCH
81.5%
MECHANICAL MATCH
100%
OVERALL
87.6%
Specifications
Property JIS G4053 SMnC420 EN 10084 20MnCrS5
Standard JIS G4053:2008 EN 10084:2008
Category Alloy Steel Alloy Steel
C (%) 0.17–0.23 0.17-0.22
Mn (%) 1.15–1.55 1.10-1.40
Cr (%) 0.35–0.70 1.00-1.30
Si (%) 0.15–0.35 <=0.40
S (%) ≤0.030 0.020-0.040
P (%) ≤0.030 <=0.025
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property JIS G4053 SMnC420 EN 10084 20MnCrS5
Tensile Strength 785–980 MPa Not specified
Case Hardness HRC 58–62 Not specified
Core Hardness HB 217–277 Not specified
Elongation ≥10% Not specified
Condition Not specified Soft annealed
Hardenability Not specified +H band at 1.5 mm from the quenched end: 41 to 49 HRC
Hardness Not specified Soft annealed: 217 HB max
Typical Applications
JIS G4053 SMnC420
Case hardened gears, shafts, cams, pins, automotive components
EN 10084 20MnCrS5
Case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1)
Can JIS G4053 SMnC420 Be Substituted With EN 10084 20MnCrS5?
JIS G4053 SMnC420 and EN 10084 20MnCrS5 overlap closely enough on chemistry and mechanical properties that EN 10084 20MnCrS5 is often considered as a substitute for JIS G4053 SMnC420 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
Forms & Sizes Available on M-EX
JIS G4053 SMnC420
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 6500–6500 mm (255.91–255.91 in)
EN 10084 20MnCrS5
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JIS G4053 SMnC420
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EN 10084 20MnCrS5
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Frequently Asked Questions
What is the difference between JIS G4053 SMnC420 and EN 10084 20MnCrS5?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can JIS G4053 SMnC420 be substituted with EN 10084 20MnCrS5?
JIS G4053 SMnC420 and EN 10084 20MnCrS5 overlap closely enough on chemistry and mechanical properties that EN 10084 20MnCrS5 is often considered as a substitute for JIS G4053 SMnC420 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.