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BS 970 (Part 1) 590A15 vs JIS G4104 SCr415

Strong Match — 87.1% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 590A15 (BS 970 (Part 1):1983) and JIS G4104 SCr415 (JIS G 4104:1979) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 1) 590A15 is typically used for case hardening steel for mechanical and allied engineering purposes (table 11 mechanical properties)., while JIS G4104 SCr415 is commonly used for case hardened gears, cams, pins. BS 970 (Part 1) 590A15 is defined under British Standards (BS), originating from United Kingdom, while JIS G4104 SCr415 is defined under Japanese Industrial Standards (JIS), originating from Japan.

As per chemical composition, BS 970 (Part 1) 590A15 vs JIS G4104 SCr415 is a 87.1% 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 87.1%.

Frequently Compared With BS 970 (Part 1) 590A15:
IS 4367 07Cr4Mo6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Mo6 NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10 IS 1570 (Part 7) 10Mo6H
Match Breakdown
CHEMISTRY MATCH
87.1%
MECHANICAL MATCH
No shared data
OVERALL
87.1%
Specifications
Property BS 970 (Part 1) 590A15 JIS G4104 SCr415
Standard BS 970 (Part 1):1983 JIS G 4104:1979
Category Alloy Steel Alloy Steel
C (%) 0.13-0.18 0.13–0.18
Mn (%) 0.90-1.20 0.60–0.90
Cr (%) 0.90-1.20 0.90–1.20
P (%) <=0.035 ≤0.030
S (%) <=0.040 ≤0.030
Si (%) Not specified 0.15–0.35
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property BS 970 (Part 1) 590A15 JIS G4104 SCr415
Tensile Strength Not specified ≥735 MPa
Case Hardness HRC Not specified 56–62
Typical Applications
BS 970 (Part 1) 590A15
Case hardening steel for mechanical and allied engineering purposes (Table 11 mechanical properties).
JIS G4104 SCr415
Case hardened gears, cams, pins
Key Differences
Can BS 970 (Part 1) 590A15 Be Substituted With JIS G4104 SCr415?
BS 970 (Part 1) 590A15 and JIS G4104 SCr415 overlap closely enough on chemistry and mechanical properties that JIS G4104 SCr415 is often considered as a substitute for BS 970 (Part 1) 590A15 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
BS 970 (Part 1) 590A15
No active listings currently.
JIS G4104 SCr415
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5600–5700 mm (220.47–224.41 in)
On M-EX Right Now
BS 970 (Part 1) 590A15
0 active listings and RFQs →
JIS G4104 SCr415
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 (Part 1) 590A15 and JIS G4104 SCr415?
JIS G4104 SCr415 specifies Si which is not specified for BS 970 (Part 1) 590A15.
Can BS 970 (Part 1) 590A15 be substituted with JIS G4104 SCr415?
BS 970 (Part 1) 590A15 and JIS G4104 SCr415 overlap closely enough on chemistry and mechanical properties that JIS G4104 SCr415 is often considered as a substitute for BS 970 (Part 1) 590A15 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.