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ASTM A240/A240M S41045 vs ASTM A959 S40910

Strong Match — 85.6% match based on chemical composition and mechanical property overlap.

ASTM A240/A240M S41045 (ASTM A240/A240M:2025) and ASTM A959 S40910 (ASTM A959:2011) are both steel grades. Both fall under the Stainless Steel category. ASTM A240/A240M S41045 is typically used for pressure vessels and general applications (plate, sheet and strip), while ASTM A959 S40910 is commonly used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1). ASTM A240/A240M S41045 is defined under ASTM International, originating from United States, while ASTM A959 S40910 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A240/A240M S41045 vs ASTM A959 S40910 is a 85.6% 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 85.6%.

Frequently Compared With ASTM A240/A240M S41045:
GOST 5632 06Kh23N28 IS 1570 (Part 7) 12Cr12MoVH GOST 5632 08X18H10 IS 1570 (Part 7) 12Cr13H GB/T 3280 06Cr19Ni10 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 ASTM A959 .-
Match Breakdown
CHEMISTRY MATCH
85.6%
MECHANICAL MATCH
No shared data
OVERALL
85.6%
Specifications
Property ASTM A240/A240M S41045 ASTM A959 S40910
Standard ASTM A240/A240M:2025 ASTM A959:2011
Category Stainless Steel Stainless Steel
C (%) <=0.030 <=0.030
Mn (%) <=1.00 <=1.00
P (%) <=0.040 <=0.040
S (%) <=0.030 <=0.020
Si (%) <=1.00 <=1.00
Cr (%) 12.0-13.0 10.5-11.7
Ni (%) <=0.50 <=0.50
N (%) <=0.030 <=0.030
Nb (%) <=0.60 Not specified
Cb (%) Not specified <=0.17
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 S41045 ASTM A959 S40910
Tensile Strength >=380 MPa Not specified
Yield Strength >=205 MPa Not specified
Elongation >=22% Not specified
Hardness <=80 HRBW Not specified
Condition Plate, sheet and strip; yield by 0.2 percent offset Not specified
Typical Applications
ASTM A240/A240M S41045
Pressure vessels and general applications (plate, sheet and strip)
ASTM A959 S40910
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Key Differences
Can ASTM A240/A240M S41045 Be Substituted With ASTM A959 S40910?
ASTM A240/A240M S41045 and ASTM A959 S40910 overlap closely enough on chemistry and mechanical properties that ASTM A959 S40910 is often considered as a substitute for ASTM A240/A240M S41045 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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ASTM A240/A240M S41045
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ASTM A959 S40910
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Frequently Asked Questions
What is the difference between ASTM A240/A240M S41045 and ASTM A959 S40910?
ASTM A240/A240M S41045 specifies Nb which is not specified for ASTM A959 S40910. ASTM A959 S40910 specifies Cb which is not specified for ASTM A240/A240M S41045.
Can ASTM A240/A240M S41045 be substituted with ASTM A959 S40910?
ASTM A240/A240M S41045 and ASTM A959 S40910 overlap closely enough on chemistry and mechanical properties that ASTM A959 S40910 is often considered as a substitute for ASTM A240/A240M S41045 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.