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ASTM A276/A276M S31651 vs BS 970 (Part 1) 320S31

Close Alternative — 84.9% match based on chemical composition and mechanical property overlap.

ASTM A276/A276M S31651 (ASTM A276/A276M:2017) and BS 970 (Part 1) 320S31 (BS 970 (Part 1):1983) are both steel grades. Both fall under the Stainless Steel category. ASTM A276/A276M S31651 is typically used for stainless steel bars and shapes (hot-finished or cold-finished), while BS 970 (Part 1) 320S31 is commonly used for austenitic stainless and heat resisting steel for mechanical and allied engineering purposes (table 14, with table 15 for the cold drawn condition).. ASTM A276/A276M S31651 is defined under ASTM International, originating from United States, while BS 970 (Part 1) 320S31 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, ASTM A276/A276M S31651 vs BS 970 (Part 1) 320S31 is a 84.9% 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 84.9%.

Frequently Compared With ASTM A276/A276M S31651:
ASTM A959 .- GOST 5632 08X18H10 EN 10088-1 1.4401 IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12Ni2Mo GB/T 3280 06Cr19Ni10 GOST 5632 06Kh23N28 EN 10088-1 1.4006 EN 10088-1 1.4301 EN 10088-1 1.4845 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoVH
Match Breakdown
CHEMISTRY MATCH
84.9%
MECHANICAL MATCH
No shared data
OVERALL
84.9%
Specifications
Property ASTM A276/A276M S31651 BS 970 (Part 1) 320S31
Standard ASTM A276/A276M:2017 BS 970 (Part 1):1983
Category Stainless Steel Stainless Steel
C (%) <=0.08 <=0.08
Mn (%) <=2.00 <=2.0
P (%) <=0.045 <=0.045
S (%) <=0.030 <=0.030
Si (%) <=1.00 <=1.0
Cr (%) 16.0-18.0 16.5-18.5
Ni (%) 10.0-14.0 11.0-14.0
Mo (%) 2.00-3.00 2.00-2.50
N (%) 0.10-0.16 Not specified
Ti (%) Not specified 5C-0.80
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property ASTM A276/A276M S31651 BS 970 (Part 1) 320S31
Tensile Strength >=550 MPa Not specified
Yield Strength >=240 MPa Not specified
Elongation >=30% Not specified
Condition Condition A (Annealed), hot-finished or cold-finished, all sizes (first row printed) Not specified
Typical Applications
ASTM A276/A276M S31651
Stainless steel bars and shapes (hot-finished or cold-finished)
BS 970 (Part 1) 320S31
Austenitic stainless and heat resisting steel for mechanical and allied engineering purposes (Table 14, with Table 15 for the cold drawn condition).
Key Differences
Can ASTM A276/A276M S31651 Be Substituted With BS 970 (Part 1) 320S31?
ASTM A276/A276M S31651 and BS 970 (Part 1) 320S31 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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ASTM A276/A276M S31651
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BS 970 (Part 1) 320S31
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Frequently Asked Questions
What is the difference between ASTM A276/A276M S31651 and BS 970 (Part 1) 320S31?
ASTM A276/A276M S31651 specifies N which is not specified for BS 970 (Part 1) 320S31. BS 970 (Part 1) 320S31 specifies Ti which is not specified for ASTM A276/A276M S31651.
Can ASTM A276/A276M S31651 be substituted with BS 970 (Part 1) 320S31?
ASTM A276/A276M S31651 and BS 970 (Part 1) 320S31 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.