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

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

SAE J404 5115 (SAE J404:2000) and BS 970 (Part 1) 527A17 (BS 970 (Part 1):1991) are both steel grades. Both fall under the Alloy Steel category. SAE J404 5115 is typically used for chemistry-only alloy steel grade; see the composition notes for product scope, while BS 970 (Part 1) 527A17 is commonly used for case hardening steel (section four). SAE J404 5115 is defined under SAE International, originating from United States, while BS 970 (Part 1) 527A17 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, SAE J404 5115 vs BS 970 (Part 1) 527A17 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 SAE J404 5115:
IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 103Cr4 IS 11169 (Part 1) 10Ni5Cr4 NF A35-565 100C6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Mo6H IS 4367 07Cr4Mo6 IS 4367 10Cr9Mo10 IS 1570 (Part 4) 10Mo6 IS 1570 (Part 4) 07Cr4Mo6 UNI 11234 100Cr6
Match Breakdown
CHEMISTRY MATCH
89.7%
MECHANICAL MATCH
No shared data
OVERALL
89.7%
Specifications
Property SAE J404 5115 BS 970 (Part 1) 527A17
Standard SAE J404:2000 BS 970 (Part 1):1991
Category Alloy Steel Alloy Steel
C (%) 0.13-0.18 0.14-0.19
Cr (%) 0.70-0.90 0.70-0.90
Mn (%) 0.70-0.90 0.70-0.90
P (%) <=0.030 Not specified
S (%) <=0.040 Not specified
Si (%) 0.15-0.35 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 SAE J404 5115 BS 970 (Part 1) 527A17
Condition Not specified Case hardened, 19 mm test bar
Tensile Strength Not specified 770 MPa min
Elongation Not specified 12 % min
Typical Applications
SAE J404 5115
Chemistry-only alloy steel grade; see the composition notes for product scope
BS 970 (Part 1) 527A17
Case hardening steel (section four)
Key Differences
Can SAE J404 5115 Be Substituted With BS 970 (Part 1) 527A17?
SAE J404 5115 and BS 970 (Part 1) 527A17 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 527A17 is often considered as a substitute for SAE J404 5115 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
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SAE J404 5115
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BS 970 (Part 1) 527A17
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Frequently Asked Questions
What is the difference between SAE J404 5115 and BS 970 (Part 1) 527A17?
SAE J404 5115 specifies P, S, Si which are not specified for BS 970 (Part 1) 527A17.
Can SAE J404 5115 be substituted with BS 970 (Part 1) 527A17?
SAE J404 5115 and BS 970 (Part 1) 527A17 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 527A17 is often considered as a substitute for SAE J404 5115 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.