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BS 970 (Part 1) 835H15 vs BS 970 EN39B

Close Alternative — 84.2% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 835H15 (BS 970 (Part 1):1983) and BS 970 EN39B (BS 970:1955) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 1) 835H15 is defined under British Standards (BS), originating from United Kingdom, while BS 970 EN39B is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 (Part 1) 835H15 vs BS 970 EN39B is a 84.2% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a close alternative overall at 84.2%.

Frequently Compared With BS 970 (Part 1) 835H15:
IS 1570 (Part 4) 103Cr6 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 07Cr4Mo6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 4367 07Cr4Mo6 NF A35-565 100C6 IS 4367 10Cr9Mo10 IS 1570 (Part 4) 10Mo6 IS 1570 (Part 7) 10Mo6H
Match Breakdown
CHEMISTRY MATCH
84.2%
MECHANICAL MATCH
No shared data
OVERALL
84.2%
Specifications
Property BS 970 (Part 1) 835H15 BS 970 EN39B
Standard BS 970 (Part 1):1983 BS 970:1955
Category Alloy Steel Alloy Steel
C (%) 0.12-0.18 0.12-0.18
Mn (%) 0.25-0.50 <=0.50
Cr (%) 1.00-1.40 1.00-1.40
Mo (%) 0.15-0.30 0.15-0.35
Ni (%) 3.90-4.30 3.80-4.50
P (%) <=0.035 <=0.050
S (%) <=0.040 <=0.050
Si (%) Not specified 0.10-0.35
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) 835H15 BS 970 EN39B
Tensile Strength Not specified ≥1313 MPa (85 tons/sq in, converted)
Elongation Not specified ≥12%
Condition Not specified Core, after heat treatment (lowest-strength condition of the standard)
Typical Applications
BS 970 (Part 1) 835H15
Case hardening steel supplied to specified hardenability limits (end quench test, Table 10).
BS 970 EN39B
Not documented
Key Differences
Can BS 970 (Part 1) 835H15 Be Substituted With BS 970 EN39B?
BS 970 (Part 1) 835H15 and BS 970 EN39B are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
On M-EX Right Now
BS 970 (Part 1) 835H15
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BS 970 EN39B
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Frequently Asked Questions
What is the difference between BS 970 (Part 1) 835H15 and BS 970 EN39B?
BS 970 EN39B specifies Si which is not specified for BS 970 (Part 1) 835H15.
Can BS 970 (Part 1) 835H15 be substituted with BS 970 EN39B?
BS 970 (Part 1) 835H15 and BS 970 EN39B are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.