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JIS G4104 SCr440 vs SAE J404 5140

Strong Match — 87.9% match based on chemical composition and mechanical property overlap.

JIS G4104 SCr440 (JIS G 4104:1979) and SAE J404 5140 (SAE J404:2000) 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 SAE J404 5140 is commonly used for chemistry-only alloy steel grade; see the composition notes for product scope. JIS G4104 SCr440 is defined under Japanese Industrial Standards (JIS), originating from Japan, while SAE J404 5140 is defined under SAE International, originating from United States.

As per chemical composition, JIS G4104 SCr440 vs SAE J404 5140 is a 87.9% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a strong match overall at 87.9%.

Frequently Compared With JIS G4104 SCr440:
NF A35-565 100C6 UNI 11234 100Cr6 GOST 4543 12HN3A GB/T 3077 12Cr2Ni4A IS 4367 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10
Match Breakdown
CHEMISTRY MATCH
87.9%
MECHANICAL MATCH
No shared data
OVERALL
87.9%
Specifications
Property JIS G4104 SCr440 SAE J404 5140
Standard JIS G 4104:1979 SAE J404:2000
Category Alloy Steel Alloy Steel
C (%) 0.38-0.43 0.38-0.43
Si (%) 0.15-0.35 0.15-0.35
Mn (%) 0.60-0.85 0.70-0.90
P (%) 0.030 max <=0.030
S (%) 0.030 max <=0.040
Cr (%) 0.90-1.20 0.70-0.90
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 SAE J404 5140
Tensile Strength 800-950 MPa Not specified
Yield Strength 590 MPa min Not specified
Elongation 13% min Not specified
Hardness 230-285 HB Not specified
Typical Applications
JIS G4104 SCr440
Used in gears, shafts, bolts, spindles, couplings, and machine structural parts.
SAE J404 5140
Chemistry-only alloy steel grade; see the composition notes for product scope
Can JIS G4104 SCr440 Be Substituted With SAE J404 5140?
JIS G4104 SCr440 and SAE J404 5140 overlap closely enough on chemistry and mechanical properties that SAE J404 5140 is often considered as a substitute for JIS G4104 SCr440 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
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)
SAE J404 5140
No active listings currently.
On M-EX Right Now
JIS G4104 SCr440
2 active listings and RFQs →
SAE J404 5140
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Frequently Asked Questions
What is the difference between JIS G4104 SCr440 and SAE J404 5140?
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 SAE J404 5140?
JIS G4104 SCr440 and SAE J404 5140 overlap closely enough on chemistry and mechanical properties that SAE J404 5140 is often considered as a substitute for JIS G4104 SCr440 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.