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JIS G4104 SCr420 vs EN 10028-2 10CrMo9-10

Minimal Match — 35% match based on chemical composition and mechanical property overlap.

JIS G4104 SCr420 (JIS G 4104:1979) and EN 10028-2 10CrMo9-10 (EN 10028-2:2017) are both steel grades. Both fall under the Alloy Steel category. JIS G4104 SCr420 is typically used for case hardened gears, shafts, cams, while EN 10028-2 10CrMo9-10 is commonly used for flat products for pressure purposes. JIS G4104 SCr420 is defined under Japanese Industrial Standards (JIS), originating from Japan, while EN 10028-2 10CrMo9-10 is defined under European Standard (EN), originating from Europe.

As per chemical composition, JIS G4104 SCr420 vs EN 10028-2 10CrMo9-10 is a 58.9% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With JIS G4104 SCr420:
GOST 4543 12HN3A NF A35-565 100C6 UNI 11234 100Cr6 GB/T 3077 12Cr2Ni4A IS 4367 10Cr9Mo10 IS 1570 (Part 4) 103Cr6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 7) 10Cr36Mo10H
Match Breakdown
CHEMISTRY MATCH
58.9%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property JIS G4104 SCr420 EN 10028-2 10CrMo9-10
Standard JIS G 4104:1979 EN 10028-2:2017
Category Alloy Steel Alloy Steel
C (%) 0.18–0.23 0.08-0.14
Si (%) 0.15–0.35 <=0.50
Mn (%) 0.60–0.90 0.40-0.80
Cr (%) 0.90–1.20 2.00-2.50
P (%) ≤0.030 <=0.020
S (%) ≤0.030 <=0.010
N (%) Not specified <=0.012
Cu (%) Not specified <=0.30
Mo (%) Not specified 0.90-1.10
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property JIS G4104 SCr420 EN 10028-2 10CrMo9-10
Tensile Strength ≥830 MPa 480-630 MPa
Case Hardness HRC 58–62 Not specified
Core Hardness HB 235–293 Not specified
Yield Strength Not specified >=310 MPa
Elongation Not specified >=18%
Condition Not specified Usual delivery condition normalized and tempered (+NT), nominal thickness up to 16 mm; transverse direction, Yield Strength is ReH, Elongation is A
Typical Applications
JIS G4104 SCr420
Case hardened gears, shafts, cams
EN 10028-2 10CrMo9-10
Flat products for pressure purposes
Key Differences
Can JIS G4104 SCr420 Be Substituted With EN 10028-2 10CrMo9-10?
JIS G4104 SCr420 and EN 10028-2 10CrMo9-10 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
Forms & Sizes Available on M-EX
JIS G4104 SCr420
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5300–5600 mm (208.66–220.47 in)
EN 10028-2 10CrMo9-10
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On M-EX Right Now
JIS G4104 SCr420
2 active listings and RFQs →
EN 10028-2 10CrMo9-10
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Frequently Asked Questions
What is the difference between JIS G4104 SCr420 and EN 10028-2 10CrMo9-10?
EN 10028-2 10CrMo9-10 specifies N, Cu, Mo which are not specified for JIS G4104 SCr420.
Can JIS G4104 SCr420 be substituted with EN 10028-2 10CrMo9-10?
JIS G4104 SCr420 and EN 10028-2 10CrMo9-10 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.