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BS 970 EN61 vs ASTM A240/A240M S44200

Strong Match — 89.7% match based on chemical composition and mechanical property overlap.

BS 970 EN61 (BS 970:1955) and ASTM A240/A240M S44200 (ASTM A240/A240M:2025) are both steel grades. Both fall under the Stainless Steel category. BS 970 EN61 is defined under British Standards (BS), originating from United Kingdom, while ASTM A240/A240M S44200 is defined under ASTM International, originating from United States.

As per chemical composition, BS 970 EN61 vs ASTM A240/A240M S44200 is a 89.7% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a strong match overall at 89.7%.

Frequently Compared With BS 970 EN61:
GOST 5632 08X18H10 IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH GB/T 3280 06Cr19Ni10 GOST 5632 06Kh23N28 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) 12Cr12Ni2Mo ASTM A959 .-
Match Breakdown
CHEMISTRY MATCH
89.7%
MECHANICAL MATCH
No shared data
OVERALL
89.7%
Specifications
Property BS 970 EN61 ASTM A240/A240M S44200
Standard BS 970:1955 ASTM A240/A240M:2025
Category Stainless Steel Stainless Steel
C (%) <=0.12 <=0.20
Si (%) <=1.00 <=1.00
Mn (%) <=1.00 <=1.00
Ni (%) <=0.50 <=0.60
Cr (%) 20.0-22.0 18.0-23.0
S (%) <=0.045 <=0.040
P (%) <=0.045 <=0.040
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 EN61 ASTM A240/A240M S44200
Tensile Strength Not specified >=515 MPa
Yield Strength Not specified >=275 MPa
Elongation Not specified >=20%
Hardness Not specified <=217 HB
Condition Not specified Plate, sheet and strip; yield by 0.2 percent offset
Typical Applications
BS 970 EN61
Not documented
ASTM A240/A240M S44200
Pressure vessels and general applications (plate, sheet and strip)
Can BS 970 EN61 Be Substituted With ASTM A240/A240M S44200?
BS 970 EN61 and ASTM A240/A240M S44200 overlap closely enough on chemistry and mechanical properties that ASTM A240/A240M S44200 is often considered as a substitute for BS 970 EN61 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
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BS 970 EN61
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ASTM A240/A240M S44200
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Frequently Asked Questions
What is the difference between BS 970 EN61 and ASTM A240/A240M S44200?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 EN61 be substituted with ASTM A240/A240M S44200?
BS 970 EN61 and ASTM A240/A240M S44200 overlap closely enough on chemistry and mechanical properties that ASTM A240/A240M S44200 is often considered as a substitute for BS 970 EN61 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.