Related Material — 63.9% match
based on chemical composition and mechanical property overlap.
ASTM A240/A240M S35140 (ASTM A240/A240M:2025) and EN 10084 14NiCrMo13-4 (EN 10084:2008) are both steel grades.
ASTM A240/A240M S35140 is classified under Stainless Steel, while EN 10084 14NiCrMo13-4 is classified under Alloy Steel — a different category, which is worth noting alongside the chemistry match below.
ASTM A240/A240M S35140 is typically used for pressure vessels and general applications (plate, sheet and strip), while EN 10084 14NiCrMo13-4 is commonly used for case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1).
ASTM A240/A240M S35140 is defined under ASTM International, originating from United States, while EN 10084 14NiCrMo13-4 is defined under European Standard (EN), originating from Europe.
As per chemical composition, ASTM A240/A240M S35140 vs EN 10084 14NiCrMo13-4 is a 45.8% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a related material overall at 63.9%.
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 S35140
EN 10084 14NiCrMo13-4
Tensile Strength
>=620 MPa
Not specified
Yield Strength
>=275 MPa
Not specified
Elongation
>=30%
Not specified
Hardness
<=241 HB
Soft annealed: 241 HB max
Condition
Plate, sheet and strip; yield by 0.2 percent offset
Soft annealed
Hardenability
Not specified
+H band at 1.5 mm from the quenched end: 39 to 47 HRC
Typical Applications
ASTM A240/A240M S35140
Pressure vessels and general applications (plate, sheet and strip)
EN 10084 14NiCrMo13-4
Case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1)
Key Differences
Different category: ASTM A240/A240M S35140 is Stainless Steel, EN 10084 14NiCrMo13-4 is Alloy Steel.
ASTM A240/A240M S35140 specifies N, Nb which are not specified for EN 10084 14NiCrMo13-4.
Can ASTM A240/A240M S35140 Be Substituted With EN 10084 14NiCrMo13-4?
ASTM A240/A240M S35140 and EN 10084 14NiCrMo13-4 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 S35140 and EN 10084 14NiCrMo13-4?
Different category: ASTM A240/A240M S35140 is Stainless Steel, EN 10084 14NiCrMo13-4 is Alloy Steel. ASTM A240/A240M S35140 specifies N, Nb which are not specified for EN 10084 14NiCrMo13-4.
Can ASTM A240/A240M S35140 be substituted with EN 10084 14NiCrMo13-4?
ASTM A240/A240M S35140 and EN 10084 14NiCrMo13-4 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.