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BS 970 (Part 1) 835H15 vs BS 970 (Part 1) 835M30

Close Alternative — 78% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 835H15 (BS 970 (Part 1):1983) and BS 970 (Part 1) 835M30 (BS 970 (Part 1):1983) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 1) 835H15 is typically used for case hardening steel supplied to specified hardenability limits (end quench test, table 10)., while BS 970 (Part 1) 835M30 is commonly used for through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of table 6.. BS 970 (Part 1) 835H15 is defined under British Standards (BS), originating from United Kingdom, while BS 970 (Part 1) 835M30 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 (Part 1) 835H15 vs BS 970 (Part 1) 835M30 is a 78% 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 78%.

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
78%
MECHANICAL MATCH
No shared data
OVERALL
78%
Specifications
Property BS 970 (Part 1) 835H15 BS 970 (Part 1) 835M30
Standard BS 970 (Part 1):1983 BS 970 (Part 1):1983
Category Alloy Steel Alloy Steel
C (%) 0.12-0.18 0.26-0.34
Mn (%) 0.25-0.50 0.45-0.70
Cr (%) 1.00-1.40 1.10-1.40
Mo (%) 0.15-0.30 0.20-0.35
Ni (%) 3.90-4.30 3.90-4.30
P (%) <=0.035 <=0.025
S (%) <=0.040 <=0.025
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Typical Applications
BS 970 (Part 1) 835H15
Case hardening steel supplied to specified hardenability limits (end quench test, Table 10).
BS 970 (Part 1) 835M30
Through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of Table 6.
Can BS 970 (Part 1) 835H15 Be Substituted With BS 970 (Part 1) 835M30?
BS 970 (Part 1) 835H15 and BS 970 (Part 1) 835M30 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 (Part 1) 835M30
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Frequently Asked Questions
What is the difference between BS 970 (Part 1) 835H15 and BS 970 (Part 1) 835M30?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 (Part 1) 835H15 be substituted with BS 970 (Part 1) 835M30?
BS 970 (Part 1) 835H15 and BS 970 (Part 1) 835M30 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.