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ASTM A240/A240M S33426 vs BS 970 (Part 1) 316S11

Related Material — 67.5% match based on chemical composition and mechanical property overlap.

ASTM A240/A240M S33426 (ASTM A240/A240M:2025) and BS 970 (Part 1) 316S11 (BS 970 (Part 1):1983) are both steel grades. Both fall under the Stainless Steel category. ASTM A240/A240M S33426 is typically used for pressure vessels and general applications (plate, sheet and strip), while BS 970 (Part 1) 316S11 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 A240/A240M S33426 is defined under ASTM International, originating from United States, while BS 970 (Part 1) 316S11 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, ASTM A240/A240M S33426 vs BS 970 (Part 1) 316S11 is a 67.5% 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 67.5%.

Frequently Compared With ASTM A240/A240M S33426:
GOST 5632 06Kh23N28 ASTM A959 29-4C GB/T 3280 06Cr19Ni10 GOST 5632 08X18H10 EN 10088-1 1.4006 EN 10088-1 1.4301 EN 10088-1 1.4401 EN 10088-1 1.4845 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH IS 1570 (Part 7) 12Cr12Ni2Mo
Match Breakdown
CHEMISTRY MATCH
67.5%
MECHANICAL MATCH
No shared data
OVERALL
67.5%
Specifications
Property ASTM A240/A240M S33426 BS 970 (Part 1) 316S11
Standard ASTM A240/A240M:2025 BS 970 (Part 1):1983
Category Stainless Steel Stainless Steel
C (%) <=0.030 <=0.030
Mn (%) <=1.00 <=2.0
P (%) <=0.030 <=0.045
S (%) <=0.015 <=0.030
Si (%) 0.80-1.50 <=1.0
Cr (%) 19.5-22.0 16.5-18.5
Ni (%) 19.0-21.0 11.0-14.0
Mo (%) 1.80-2.20 2.00-2.50
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property ASTM A240/A240M S33426 BS 970 (Part 1) 316S11
Tensile Strength >=515 MPa Not specified
Yield Strength >=205 MPa Not specified
Elongation >=30% Not specified
Hardness <=217 HB Not specified
Condition t <= 0.12 in. [3 mm] (first condition printed); yield by 0.2 percent offset Not specified
Typical Applications
ASTM A240/A240M S33426
Pressure vessels and general applications (plate, sheet and strip)
BS 970 (Part 1) 316S11
Austenitic stainless and heat resisting steel for mechanical and allied engineering purposes (Table 14, with Table 15 for the cold drawn condition).
Can ASTM A240/A240M S33426 Be Substituted With BS 970 (Part 1) 316S11?
ASTM A240/A240M S33426 and BS 970 (Part 1) 316S11 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.
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ASTM A240/A240M S33426
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BS 970 (Part 1) 316S11
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Frequently Asked Questions
What is the difference between ASTM A240/A240M S33426 and BS 970 (Part 1) 316S11?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A240/A240M S33426 be substituted with BS 970 (Part 1) 316S11?
ASTM A240/A240M S33426 and BS 970 (Part 1) 316S11 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.