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BS 970 (Part 1) 722M24 vs IS 1570 (Part 7) 12Cr4Mo5H

Related Material — 69.9% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 722M24 (BS 970 (Part 1):1991) and IS 1570 (Part 7) 12Cr4Mo5H (IS 1570 (Part 7):1992) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 1) 722M24 is typically used for steel for surface hardening by nitriding (section three), while IS 1570 (Part 7) 12Cr4Mo5H is commonly used for boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature. BS 970 (Part 1) 722M24 is defined under British Standards (BS), originating from United Kingdom, while IS 1570 (Part 7) 12Cr4Mo5H is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, BS 970 (Part 1) 722M24 vs IS 1570 (Part 7) 12Cr4Mo5H is a 75.6% 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 69.9%.

Frequently Compared With BS 970 (Part 1) 722M24:
IS 1570 (Part 7) 10Mo6H IS 1570 (Part 4) 103Cr4 IS 1570 (Part 7) 12Cr2Mo5V2H IS 4367 07Cr4Mo6 NF A35-565 100C6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 10Cr20Mo6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10
Match Breakdown
CHEMISTRY MATCH
75.6%
MECHANICAL MATCH
No shared data
OVERALL
69.9%
Specifications
Property BS 970 (Part 1) 722M24 IS 1570 (Part 7) 12Cr4Mo5H
Standard BS 970 (Part 1):1991 IS 1570 (Part 7):1992
Category Alloy Steel Alloy Steel
C (%) 0.20-0.28 0.10-0.18
Mn (%) 0.45-0.70 0.40-0.70
Cr (%) 3.00-3.50 0.70-1.10
Mo (%) 0.45-0.65 0.45-0.65
Si (%) Not specified 0.10-0.35
P (%) Not specified <=0.040
Al (metallic) (%) Not specified <=0.02
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) 722M24 IS 1570 (Part 7) 12Cr4Mo5H
Tensile Strength Not specified 440-590 MPa
Yield Strength Not specified >=275 MPa (0.2 % proof stress)
Elongation Not specified >=22%
Condition Not specified Pipes, N+T, thickness - (first row of Table 3)
Typical Applications
BS 970 (Part 1) 722M24
Steel for surface hardening by nitriding (section three)
IS 1570 (Part 7) 12Cr4Mo5H
Boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
Key Differences
Can BS 970 (Part 1) 722M24 Be Substituted With IS 1570 (Part 7) 12Cr4Mo5H?
BS 970 (Part 1) 722M24 and IS 1570 (Part 7) 12Cr4Mo5H 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) 722M24
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IS 1570 (Part 7) 12Cr4Mo5H
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Frequently Asked Questions
What is the difference between BS 970 (Part 1) 722M24 and IS 1570 (Part 7) 12Cr4Mo5H?
IS 1570 (Part 7) 12Cr4Mo5H specifies Si, P, Al (metallic) which are not specified for BS 970 (Part 1) 722M24.
Can BS 970 (Part 1) 722M24 be substituted with IS 1570 (Part 7) 12Cr4Mo5H?
BS 970 (Part 1) 722M24 and IS 1570 (Part 7) 12Cr4Mo5H 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.