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JIS G4202 SACM645 vs EN 10028-2 10CrMo9-10

Minimal Match — 38.9% match based on chemical composition and mechanical property overlap.

JIS G4202 SACM645 (JIS G 4202:2005) and EN 10028-2 10CrMo9-10 (EN 10028-2:2017) are both steel grades. Both fall under the Alloy Steel category. JIS G4202 SACM645 is typically used for nitrided gears, crankshafts, cylinder liners, gauges, while EN 10028-2 10CrMo9-10 is commonly used for flat products for pressure purposes. JIS G4202 SACM645 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 G4202 SACM645 vs EN 10028-2 10CrMo9-10 is a 58.3% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 38.9%.

Frequently Compared With JIS G4202 SACM645:
NF A35-565 100C6 GOST 4543 12HN3A UNI 11234 100Cr6 GB/T 3077 12Cr2Ni4A IS 1570 (Part 4) 103Cr6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10
Match Breakdown
CHEMISTRY MATCH
58.3%
MECHANICAL MATCH
0%
OVERALL
38.9%
Specifications
Property JIS G4202 SACM645 EN 10028-2 10CrMo9-10
Standard JIS G 4202:2005 EN 10028-2:2017
Category Alloy Steel Alloy Steel
C (%) 0.40–0.50 0.08-0.14
Si (%) 0.15–0.50 <=0.50
Mn (%) 0.55–0.90 0.40-0.80
Cr (%) 1.30–1.70 2.00-2.50
Mo (%) 0.15–0.30 0.90-1.10
Al (%) 0.70–1.20 Not specified
P (%) ≤0.030 <=0.020
S (%) ≤0.030 <=0.010
N (%) Not specified <=0.012
Cu (%) Not specified <=0.30
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property JIS G4202 SACM645 EN 10028-2 10CrMo9-10
Tensile Strength 930–1080 MPa 480-630 MPa
Surface Hardness HV ≥900 (nitrided) Not specified
Core Hardness HB 269–321 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 G4202 SACM645
Nitrided gears, crankshafts, cylinder liners, gauges
EN 10028-2 10CrMo9-10
Flat products for pressure purposes
Key Differences
Can JIS G4202 SACM645 Be Substituted With EN 10028-2 10CrMo9-10?
JIS G4202 SACM645 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 G4202 SACM645
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 4600–5900 mm (181.1–232.28 in)
EN 10028-2 10CrMo9-10
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On M-EX Right Now
JIS G4202 SACM645
2 active listings and RFQs →
EN 10028-2 10CrMo9-10
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Frequently Asked Questions
What is the difference between JIS G4202 SACM645 and EN 10028-2 10CrMo9-10?
JIS G4202 SACM645 specifies Al which is not specified for EN 10028-2 10CrMo9-10. EN 10028-2 10CrMo9-10 specifies N, Cu which are not specified for JIS G4202 SACM645.
Can JIS G4202 SACM645 be substituted with EN 10028-2 10CrMo9-10?
JIS G4202 SACM645 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.