Post Stock Login Register

JIS G4104 SCr440 vs UNI 11234 100Cr6

Related Material — 55.8% match based on chemical composition and mechanical property overlap.

JIS G4104 SCr440 (JIS G 4104:1979) and UNI 11234 100Cr6 (UNI 11234:2007) are both steel grades. Both fall under the Alloy Steel category. JIS G4104 SCr440 is typically used for used in gears, shafts, bolts, spindles, couplings, and machine structural parts., while UNI 11234 100Cr6 is commonly used for ball bearings,roller bearings,needle bearings,dies,punches,gauges,wear resistant components. JIS G4104 SCr440 is defined under Japanese Industrial Standards (JIS), originating from Japan, while UNI 11234 100Cr6 is defined under Ente Nazionale Italiano di Unificazione (UNI), originating from Italy.

As per chemical composition, JIS G4104 SCr440 vs UNI 11234 100Cr6 is a 76.2% match. As per mechanical properties, the match is 15%. Combined, this makes them a related material overall at 55.8%.

Frequently Compared With JIS G4104 SCr440:
NF A35-565 100C6 GOST 4543 12HN3A GB/T 3077 12Cr2Ni4A IS 4367 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10 EN 10028-2 10CrMo9-10
Match Breakdown
CHEMISTRY MATCH
76.2%
MECHANICAL MATCH
15%
OVERALL
55.8%
Specifications
Property JIS G4104 SCr440 UNI 11234 100Cr6
Standard JIS G 4104:1979 UNI 11234:2007
Category Alloy Steel Alloy Steel
C (%) 0.38-0.43 0.93-1.05
Si (%) 0.15-0.35 0.15-0.35
Mn (%) 0.60-0.85 0.25-0.45
P (%) 0.030 max <=0.025
S (%) 0.030 max <=0.025
Cr (%) 0.90-1.20 1.35-1.65
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 SCr440 UNI 11234 100Cr6
Tensile Strength 800-950 MPa 750-1000 MPa
Yield Strength 590 MPa min 400-600 MPa
Elongation 13% min 10-14 %
Hardness 230-285 HB 60-64 HRC
Typical Applications
JIS G4104 SCr440
Used in gears, shafts, bolts, spindles, couplings, and machine structural parts.
UNI 11234 100Cr6
ball bearings,roller bearings,needle bearings,dies,punches,gauges,wear resistant components
Can JIS G4104 SCr440 Be Substituted With UNI 11234 100Cr6?
JIS G4104 SCr440 and UNI 11234 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 G4104 SCr440
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 4500–6100 mm (177.17–240.16 in)
UNI 11234 100Cr6
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5700–6800 mm (224.41–267.72 in)
On M-EX Right Now
JIS G4104 SCr440
2 active listings and RFQs →
UNI 11234 100Cr6
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between JIS G4104 SCr440 and UNI 11234 100Cr6?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can JIS G4104 SCr440 be substituted with UNI 11234 100Cr6?
JIS G4104 SCr440 and UNI 11234 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.