Strong Match — 94.4% match
based on chemical composition and mechanical property overlap.
ASTM A959 S35125 (ASTM A959:2011) and ASTM A240/A240M S35125 (ASTM A240/A240M:2025) are both steel grades.
Both fall under the Stainless Steel category.
ASTM A959 S35125 is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while ASTM A240/A240M S35125 is commonly used for pressure vessels and general applications (plate, sheet and strip).
ASTM A959 S35125 is defined under ASTM International, originating from United States, while ASTM A240/A240M S35125 is defined under ASTM International, originating from United States.
As per chemical composition, ASTM A959 S35125 vs ASTM A240/A240M S35125 is a 94.4% 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 94.4%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
ASTM A959 S35125
ASTM A240/A240M S35125
Tensile Strength
Not specified
>=485 MPa
Yield Strength
Not specified
>=205 MPa
Elongation
Not specified
>=35%
Condition
Not specified
Plate, sheet and strip; yield by 0.2 percent offset
Typical Applications
ASTM A959 S35125
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
ASTM A240/A240M S35125
Pressure vessels and general applications (plate, sheet and strip)
Key Differences
ASTM A959 S35125 specifies Cb which is not specified for ASTM A240/A240M S35125.
ASTM A240/A240M S35125 specifies Nb which is not specified for ASTM A959 S35125.
Can ASTM A959 S35125 Be Substituted With ASTM A240/A240M S35125?
ASTM A959 S35125 and ASTM A240/A240M S35125 overlap closely enough on chemistry and mechanical properties that ASTM A240/A240M S35125 is often considered as a substitute for ASTM A959 S35125 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
What is the difference between ASTM A959 S35125 and ASTM A240/A240M S35125?
ASTM A959 S35125 specifies Cb which is not specified for ASTM A240/A240M S35125. ASTM A240/A240M S35125 specifies Nb which is not specified for ASTM A959 S35125.
Can ASTM A959 S35125 be substituted with ASTM A240/A240M S35125?
ASTM A959 S35125 and ASTM A240/A240M S35125 overlap closely enough on chemistry and mechanical properties that ASTM A240/A240M S35125 is often considered as a substitute for ASTM A959 S35125 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.