Post Stock Login Register

JIS G4053 SMnC420 vs EN 10084 28CrS4

Close Alternative — 80.8% match based on chemical composition and mechanical property overlap.

JIS G4053 SMnC420 (JIS G4053:2008) and EN 10084 28CrS4 (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 28CrS4 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 28CrS4 is defined under European Standard (EN), originating from Europe.

As per chemical composition, JIS G4053 SMnC420 vs EN 10084 28CrS4 is a 71.1% match. As per mechanical properties, the match is 100%. Combined, this makes them a close alternative overall at 80.8%.

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
71.1%
MECHANICAL MATCH
100%
OVERALL
80.8%
Specifications
Property JIS G4053 SMnC420 EN 10084 28CrS4
Standard JIS G4053:2008 EN 10084:2008
Category Alloy Steel Alloy Steel
C (%) 0.17–0.23 0.24-0.31
Mn (%) 1.15–1.55 0.60-0.90
Cr (%) 0.35–0.70 0.90-1.20
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 28CrS4
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: 45 to 53 HRC
Hardness Not specified Soft annealed: 217 HB max
Typical Applications
JIS G4053 SMnC420
Case hardened gears, shafts, cams, pins, automotive components
EN 10084 28CrS4
Case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1)
Can JIS G4053 SMnC420 Be Substituted With EN 10084 28CrS4?
JIS G4053 SMnC420 and EN 10084 28CrS4 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
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 28CrS4
No active listings currently.
On M-EX Right Now
JIS G4053 SMnC420
2 active listings and RFQs →
EN 10084 28CrS4
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between JIS G4053 SMnC420 and EN 10084 28CrS4?
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 28CrS4?
JIS G4053 SMnC420 and EN 10084 28CrS4 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.