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

Related Material — 69.5% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 897M39 (BS 970 (Part 1):1983) and BS 970 (Part 3) 722M24 (BS 970 (Part 3):1991) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 1) 897M39 is typically used for through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of table 6., while BS 970 (Part 3) 722M24 is commonly 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). BS 970 (Part 1) 897M39 is defined under British Standards (BS), originating from United Kingdom, while BS 970 (Part 3) 722M24 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 (Part 1) 897M39 vs BS 970 (Part 3) 722M24 is a 69.5% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a related material overall at 69.5%.

Frequently Compared With BS 970 (Part 1) 897M39:
IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 10Mo6 IS 1570 (Part 7) 10Mo6H IS 11169 (Part 1) 10Ni5Cr4 NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 7) 10Cr36Mo10H
Match Breakdown
CHEMISTRY MATCH
69.5%
MECHANICAL MATCH
No shared data
OVERALL
69.5%
Specifications
Property BS 970 (Part 1) 897M39 BS 970 (Part 3) 722M24
Standard BS 970 (Part 1):1983 BS 970 (Part 3):1991
Category Alloy Steel Alloy Steel
C (%) 0.35-0.43 0.20-0.28
Mn (%) 0.45-0.70 0.45-0.70
P (%) <=0.025 <=0.035
S (%) <=0.025 <=0.040
Cr (%) 3.00-3.50 3.00-3.50
Mo (%) 0.80-1.10 0.45-0.65
V (%) 0.15-0.25 Not specified
Si (%) Not specified 0.10-0.40
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) 897M39
Through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of Table 6.
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)
Key Differences
Can BS 970 (Part 1) 897M39 Be Substituted With BS 970 (Part 3) 722M24?
BS 970 (Part 1) 897M39 and BS 970 (Part 3) 722M24 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
On M-EX Right Now
BS 970 (Part 1) 897M39
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BS 970 (Part 3) 722M24
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Frequently Asked Questions
What is the difference between BS 970 (Part 1) 897M39 and BS 970 (Part 3) 722M24?
BS 970 (Part 1) 897M39 specifies V which is not specified for BS 970 (Part 3) 722M24. BS 970 (Part 3) 722M24 specifies Si which is not specified for BS 970 (Part 1) 897M39.
Can BS 970 (Part 1) 897M39 be substituted with BS 970 (Part 3) 722M24?
BS 970 (Part 1) 897M39 and BS 970 (Part 3) 722M24 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.