Close Alternative — 76.2% match
based on chemical composition and mechanical property overlap.
ASTM A240/A240M S40955 (ASTM A240/A240M:2025) and ASTM A240/A240M S41045 (ASTM A240/A240M:2025) are both steel grades.
Both fall under the Stainless Steel category.
ASTM A240/A240M S40955 is typically used for pressure vessels and general applications (plate, sheet and strip), while ASTM A240/A240M S41045 is commonly used for pressure vessels and general applications (plate, sheet and strip).
ASTM A240/A240M S40955 is defined under ASTM International, originating from United States, while ASTM A240/A240M S41045 is defined under ASTM International, originating from United States.
As per chemical composition, ASTM A240/A240M S40955 vs ASTM A240/A240M S41045 is a 76.9% match.
As per mechanical properties, the match is 75%.
Combined, this makes them a close alternative overall at 76.2%.
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 S40955
ASTM A240/A240M S41045
Tensile Strength
>=380 MPa
>=380 MPa
Yield Strength
>=205 MPa
>=205 MPa
Elongation
>=22%
>=22%
Hardness
<=88 HRBW
<=80 HRBW
Condition
Plate, sheet and strip; yield by 0.2 percent offset
Plate, sheet and strip; yield by 0.2 percent offset
Typical Applications
ASTM A240/A240M S40955
Pressure vessels and general applications (plate, sheet and strip)
ASTM A240/A240M S41045
Pressure vessels and general applications (plate, sheet and strip)
Key Differences
ASTM A240/A240M S40955 specifies Ti which is not specified for ASTM A240/A240M S41045.
Can ASTM A240/A240M S40955 Be Substituted With ASTM A240/A240M S41045?
ASTM A240/A240M S40955 and ASTM A240/A240M S41045 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.
What is the difference between ASTM A240/A240M S40955 and ASTM A240/A240M S41045?
ASTM A240/A240M S40955 specifies Ti which is not specified for ASTM A240/A240M S41045.
Can ASTM A240/A240M S40955 be substituted with ASTM A240/A240M S41045?
ASTM A240/A240M S40955 and ASTM A240/A240M S41045 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.