Related Material — 69.2% match
based on chemical composition and mechanical property overlap.
EN 10025-2 S355K2 (EN 10025-2:2019) and CSA G40.21 400A (CSA G40.21-13 (R2023)) are both steel grades.
Both fall under the Structural Steel category.
EN 10025-2 S355K2 is typically used for hot rolled products of structural steels, while CSA G40.21 400A is commonly used for atmospheric corrosion-resistant (weathering) structural steel; exposed bridge girders and structural members where high strength and weathering resistance are both needed.
EN 10025-2 S355K2 is defined under European Standard (EN), originating from Europe, while CSA G40.21 400A is defined under Canadian Standards Association (CSA), originating from Canada.
As per chemical composition, EN 10025-2 S355K2 vs CSA G40.21 400A is a 94.6% match.
As per mechanical properties, the match is 18.3%.
Combined, this makes them a related material overall at 69.2%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
EN 10025-2 S355K2
CSA G40.21 400A
Tensile Strength
470-630 MPa
520-670 MPa
Yield Strength
>=355 MPa
400 MPa min
Elongation
>=22%
17% min
Condition
Nominal thickness up to 16 mm (tensile for 3 to 100 mm, elongation for 3 to 40 mm), longitudinal test pieces
Not specified
Impact
Not specified
27J at 0°C
Typical Applications
EN 10025-2 S355K2
Hot rolled products of structural steels
CSA G40.21 400A
Atmospheric corrosion-resistant (weathering) structural steel; exposed bridge girders and structural members where high strength and weathering resistance are both needed
Can EN 10025-2 S355K2 Be Substituted With CSA G40.21 400A?
EN 10025-2 S355K2 and CSA G40.21 400A 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 EN 10025-2 S355K2 and CSA G40.21 400A?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can EN 10025-2 S355K2 be substituted with CSA G40.21 400A?
EN 10025-2 S355K2 and CSA G40.21 400A 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.