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JIS G4404 SKS31 vs EN ISO 683-17 100Cr6

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

JIS G4404 SKS31 (JIS G4404:2006) and EN ISO 683-17 100Cr6 (EN ISO 683-17:2014) are both steel grades. Both fall under the Tool & Die Steels category. JIS G4404 SKS31 is typically used for cold working molds, press dies, jigs, gauges, long taps, reamers, measuring tools requiring minimal quenching distortion., while EN ISO 683-17 100Cr6 is commonly used for rolling element bearings, precision components, cold work tooling. JIS G4404 SKS31 is defined under Japanese Industrial Standards (JIS), originating from Japan, while EN ISO 683-17 100Cr6 is defined under European Standard (EN), originating from Europe.

As per chemical composition, JIS G4404 SKS31 vs EN ISO 683-17 100Cr6 is a 72.5% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With JIS G4404 SKS31:
EN ISO 4957 1.2316 DIN EN ISO 4957 1.2344 DIN EN ISO 4957 1.2379 GB/T 1299 4Cr5MoSiV AISI 52100 GB/T 1299 4Cr5MoSiV1 GOST 5950 4H5MFS1 GB/T 1299 3Cr2W8V GOST 5950 3H2W8F GOST 5950 4H5MFS IS 3748 103T3 IS 1570 (Part 6) 103T3
Match Breakdown
CHEMISTRY MATCH
72.5%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property JIS G4404 SKS31 EN ISO 683-17 100Cr6
Standard JIS G4404:2006 EN ISO 683-17:2014
Category Tool & Die Steels Tool & Die Steels
C (%) 0.95-1.05 0.93–1.05
Si (%) <=0.35 0.15–0.35
Mn (%) 0.90-1.20 0.25–0.45
P (%) <=0.03 ≤0.025
S (%) <=0.03 ≤0.025
Cr (%) 0.80-1.20 1.35–1.65
W (%) 1.00-1.50 Not specified
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property JIS G4404 SKS31 EN ISO 683-17 100Cr6
Tensile Strength 900-1150 MPa ≥620 MPa (annealed)
Yield Strength 750 MPa min Not specified
Elongation 10% min Not specified
Hardness 58-62 HRC Not specified
Hardness HRC Not specified 60–66 (hardened)
Hardness HB Not specified 179–217 (annealed)
Typical Applications
JIS G4404 SKS31
Cold working molds, press dies, jigs, gauges, long taps, reamers, measuring tools requiring minimal quenching distortion.
EN ISO 683-17 100Cr6
Rolling element bearings, precision components, cold work tooling
Key Differences
Can JIS G4404 SKS31 Be Substituted With EN ISO 683-17 100Cr6?
JIS G4404 SKS31 and EN ISO 683-17 100Cr6 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 G4404 SKS31
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2500–3700 mm (98.43–145.67 in)
EN ISO 683-17 100Cr6
Round Bar → (18 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 3000–6500 mm (118.11–255.91 in)
On M-EX Right Now
JIS G4404 SKS31
2 active listings and RFQs →
EN ISO 683-17 100Cr6
18 active listings and RFQs →
Frequently Asked Questions
What is the difference between JIS G4404 SKS31 and EN ISO 683-17 100Cr6?
JIS G4404 SKS31 specifies W which is not specified for EN ISO 683-17 100Cr6.
Can JIS G4404 SKS31 be substituted with EN ISO 683-17 100Cr6?
JIS G4404 SKS31 and EN ISO 683-17 100Cr6 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.