Minimal Match — 35.6% match
based on chemical composition and mechanical property overlap.
ASTM A240/A240M S38815 (ASTM A240/A240M:2025) and EN 10088-1 1.4401 (EN 10088-1:2014) are both steel grades.
Both fall under the Stainless Steel category.
ASTM A240/A240M S38815 is typically used for pressure vessels and general applications (plate, sheet and strip), while EN 10088-1 1.4401 is commonly used for marine, chemical processing, pharmaceutical equipment.
ASTM A240/A240M S38815 is defined under ASTM International, originating from United States, while EN 10088-1 1.4401 is defined under European Standard (EN), originating from Europe.
As per chemical composition, ASTM A240/A240M S38815 vs EN 10088-1 1.4401 is a 53.4% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a minimal match overall at 35.6%.
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 S38815
EN 10088-1 1.4401
Tensile Strength
>=540 MPa
≥520 MPa
Yield Strength
>=255 MPa
≥210 MPa
Elongation
>=30%
≥40%
Condition
Plate, sheet and strip; yield by 0.2 percent offset
Not specified
Hardness
Not specified
≤215 HB
Typical Applications
ASTM A240/A240M S38815
Pressure vessels and general applications (plate, sheet and strip)
EN 10088-1 1.4401
Marine, chemical processing, pharmaceutical equipment
Key Differences
ASTM A240/A240M S38815 specifies P, S, Cu, Al which are not specified for EN 10088-1 1.4401.
Can ASTM A240/A240M S38815 Be Substituted With EN 10088-1 1.4401?
ASTM A240/A240M S38815 and EN 10088-1 1.4401 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.
What is the difference between ASTM A240/A240M S38815 and EN 10088-1 1.4401?
ASTM A240/A240M S38815 specifies P, S, Cu, Al which are not specified for EN 10088-1 1.4401.
Can ASTM A240/A240M S38815 be substituted with EN 10088-1 1.4401?
ASTM A240/A240M S38815 and EN 10088-1 1.4401 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.