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BS 970 (Part 3) 722M24 vs ASTM A387/A387M Grade 5

Close Alternative — 75.1% match based on chemical composition and mechanical property overlap.

BS 970 (Part 3) 722M24 (BS 970 (Part 3):1991) and ASTM A387/A387M Grade 5 (ASTM A387/A387M:2011) 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 ASTM A387/A387M Grade 5 is commonly used for welded boilers and pressure vessels for elevated temperature service. BS 970 (Part 3) 722M24 is defined under British Standards (BS), originating from United Kingdom, while ASTM A387/A387M Grade 5 is defined under ASTM International, originating from United States.

As per chemical composition, BS 970 (Part 3) 722M24 vs ASTM A387/A387M Grade 5 is a 75.1% 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 75.1%.

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 4) 10Mo6 IS 1570 (Part 7) 12Cr4Mo5H IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 UNI 11234 100Cr6 IS 1570 (Part 4) 105Cr5
Match Breakdown
CHEMISTRY MATCH
75.1%
MECHANICAL MATCH
No shared data
OVERALL
75.1%
Specifications
Property BS 970 (Part 3) 722M24 ASTM A387/A387M Grade 5
Standard BS 970 (Part 3):1991 ASTM A387/A387M:2011
Category Alloy Steel Alloy Steel
C (%) 0.20-0.28 <=0.15
Si (%) 0.10-0.40 <=0.50
Mn (%) 0.45-0.70 0.30-0.60
P (%) <=0.035 <=0.025
S (%) <=0.040 <=0.025
Cr (%) 3.00-3.50 4.00-6.00
Mo (%) 0.45-0.65 0.45-0.65
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 3) 722M24 ASTM A387/A387M Grade 5
Tensile Strength Not specified 415-585 MPa
Yield Strength Not specified >=205 MPa
Elongation Not specified >=18%
Condition Not specified Class 1 plates, no thickness ranges printed; elongation in 50 mm gauge length
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)
ASTM A387/A387M Grade 5
Welded boilers and pressure vessels for elevated temperature service
Can BS 970 (Part 3) 722M24 Be Substituted With ASTM A387/A387M Grade 5?
BS 970 (Part 3) 722M24 and ASTM A387/A387M Grade 5 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.
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BS 970 (Part 3) 722M24
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ASTM A387/A387M Grade 5
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Frequently Asked Questions
What is the difference between BS 970 (Part 3) 722M24 and ASTM A387/A387M Grade 5?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 (Part 3) 722M24 be substituted with ASTM A387/A387M Grade 5?
BS 970 (Part 3) 722M24 and ASTM A387/A387M Grade 5 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.