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BS 970 (Part 3) 722M24 vs BS 970 (Part 1) 897M39

Close Alternative — 75.7% match based on chemical composition and mechanical property overlap.

BS 970 (Part 3) 722M24 (BS 970 (Part 3):1991) and BS 970 (Part 1) 897M39 (BS 970 (Part 1):1991) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 3) 722M24 is typically used for bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; alloy direct hardening steel (table 16), while BS 970 (Part 1) 897M39 is commonly used for steel for surface hardening by nitriding (section three). BS 970 (Part 3) 722M24 is defined under British Standards (BS), originating from United Kingdom, while BS 970 (Part 1) 897M39 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 (Part 3) 722M24 vs BS 970 (Part 1) 897M39 is a 75.7% 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 75.7%.

Frequently Compared With BS 970 (Part 3) 722M24:
IS 1570 (Part 7) 10Mo6H IS 1570 (Part 7) 12Cr2Mo5V2H IS 1570 (Part 7) 12Cr9Mo10H NF A35-565 100C6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 7) 12Cr4Mo5H IS 4367 07Cr4Mo6 IS 1570 (Part 4) 10Mo6 IS 1570 (Part 4) 07Cr4Mo6 UNI 11234 100Cr6 IS 1570 (Part 4) 105Cr5
Match Breakdown
CHEMISTRY MATCH
75.7%
MECHANICAL MATCH
No shared data
OVERALL
75.7%
Specifications
Property BS 970 (Part 3) 722M24 BS 970 (Part 1) 897M39
Standard BS 970 (Part 3):1991 BS 970 (Part 1):1991
Category Alloy Steel Alloy Steel
C (%) 0.20-0.28 0.35-0.43
Si (%) 0.10-0.40 Not specified
Mn (%) 0.45-0.70 0.45-0.70
P (%) <=0.035 Not specified
S (%) <=0.040 Not specified
Cr (%) 3.00-3.50 3.00-3.50
Mo (%) 0.45-0.65 0.80-1.10
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 3) 722M24
Bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; alloy direct hardening steel (Table 16)
BS 970 (Part 1) 897M39
Steel for surface hardening by nitriding (section three)
Key Differences
Can BS 970 (Part 3) 722M24 Be Substituted With BS 970 (Part 1) 897M39?
BS 970 (Part 3) 722M24 and BS 970 (Part 1) 897M39 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 3) 722M24
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BS 970 (Part 1) 897M39
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Frequently Asked Questions
What is the difference between BS 970 (Part 3) 722M24 and BS 970 (Part 1) 897M39?
BS 970 (Part 3) 722M24 specifies Si, P, S which are not specified for BS 970 (Part 1) 897M39.
Can BS 970 (Part 3) 722M24 be substituted with BS 970 (Part 1) 897M39?
BS 970 (Part 3) 722M24 and BS 970 (Part 1) 897M39 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.