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BS 970 (Part 1) 527A17 vs SAE J404 5115

Strong Match — 89.7% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 527A17 (BS 970 (Part 1):1991) and SAE J404 5115 (SAE J404:2009) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 1) 527A17 is typically used for case hardening steel (section four), while SAE J404 5115 is commonly used for case hardened gears, cams, shafts. BS 970 (Part 1) 527A17 is defined under British Standards (BS), originating from United Kingdom, while SAE J404 5115 is defined under SAE International, originating from United States.

As per chemical composition, BS 970 (Part 1) 527A17 vs SAE J404 5115 is a 89.7% 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 89.7%.

Frequently Compared With BS 970 (Part 1) 527A17:
IS 1570 (Part 7) 10Mo6H IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10 IS 1570 (Part 4) 10Mo6
Match Breakdown
CHEMISTRY MATCH
89.7%
MECHANICAL MATCH
No shared data
OVERALL
89.7%
Specifications
Property BS 970 (Part 1) 527A17 SAE J404 5115
Standard BS 970 (Part 1):1991 SAE J404:2009
Category Alloy Steel Alloy Steel
C (%) 0.14-0.19 0.13-0.18
Mn (%) 0.70-0.90 0.70-0.90
Cr (%) 0.70-0.90 0.70-0.90
P (%) Not specified <=0.030
S (%) Not specified <=0.040
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) 527A17 SAE J404 5115
Condition Case hardened, 19 mm test bar Not specified
Tensile Strength 770 MPa min Not specified
Elongation 12 % min Not specified
Typical Applications
BS 970 (Part 1) 527A17
Case hardening steel (section four)
SAE J404 5115
Case hardened gears, cams, shafts
Key Differences
Can BS 970 (Part 1) 527A17 Be Substituted With SAE J404 5115?
BS 970 (Part 1) 527A17 and SAE J404 5115 overlap closely enough on chemistry and mechanical properties that SAE J404 5115 is often considered as a substitute for BS 970 (Part 1) 527A17 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) 527A17
No active listings currently.
SAE J404 5115
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 6400–6400 mm (251.97–251.97 in)
On M-EX Right Now
BS 970 (Part 1) 527A17
0 active listings and RFQs →
SAE J404 5115
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 (Part 1) 527A17 and SAE J404 5115?
SAE J404 5115 specifies P, S, Si which are not specified for BS 970 (Part 1) 527A17.
Can BS 970 (Part 1) 527A17 be substituted with SAE J404 5115?
BS 970 (Part 1) 527A17 and SAE J404 5115 overlap closely enough on chemistry and mechanical properties that SAE J404 5115 is often considered as a substitute for BS 970 (Part 1) 527A17 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.