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CSA G40.21-13 (R2023) 400A Steel: Specifications & Listings

CSA G40.21-13 (R2023) 400A: High strength structural steel with 400 MPa yield strength, Class A designation indicating atmospheric corrosion resistance. Used for heavy structural fabrications and exposed applications.

Forms: Plate Category: Structural Steel
Grade Details
GradeCSA G40.21-13 (R2023) 400A
Standard CSA G40.21-13 (R2023)
ApplicationsAtmospheric corrosion-resistant (weathering) structural steel; exposed bridge girders and structural members where high strength and weathering resistance are both needed
Most Active InNorth (Haryana)
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
ASTM A588 Grade B ASTM A588 USA 1 listing, 1 RFQ →
EN 10025-5 S355J2WP EN 10025-5:2019 Europe (CEN) 1 listing, 1 RFQ →
CSA G40.21 400W CSA G40.21-13 (R2023) Canada 2 listings, 0 RFQs →
EN 10025-3 S460 EN 10025-3:2019 Europe 2 listings, 0 RFQs →
Supply & Demand by FormSee Full Supply & Demand →
Plate →
Low Activity
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
CSA G40.21 400W CSA G40.21-13 (R2023) Strong Match
AS/NZS 3678 Grade 450 AS/NZS 3678:2016 Strong Match
AS/NZS Grade 500 AS/NZS 3597:2008 Strong Match
EN 10025-3 S420JR EN 10025-3:2019 Close Alternative
AS/NZS 3678 Grade 400 AS/NZS 3678:2016 Close Alternative
EN 10025-3 S460JR EN 10025-3:2019 Close Alternative
EN 10025-2 S460JR EN 10025-2:2019 Close Alternative
EN 10025-2 S460J0 EN 10025-2:2019 Close Alternative
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C Mn Si P S Cu
<=0.23 <=1.60 <=0.40 <=0.035 <=0.035 0.20-0.40
Mechanical Properties
Tensile Strength 520-670 MPa
Yield Strength 400 MPa min
Elongation 17% min
Impact 27J at 0°C

Popular forms for this grade:

Plate (2)

Active CSA G40.21-13 (R2023) 400A Listings on M-EX (For Sale)

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CSA G40.21-13 (R2023) 400A Plate
3.200 MT
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Buyer RFQs for CSA G40.21-13 (R2023) 400A

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CSA G40.21-13 (R2023) 400A Plate
2.400 MT
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