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CSA G40.21 400W vs EN 10025-3 S420JR

Close Alternative — 79.2% match based on chemical composition and mechanical property overlap.

CSA G40.21 400W (CSA G40.21-13 (R2023)) and EN 10025-3 S420JR (EN 10025-3:2019) are both steel grades. Both fall under the Structural Steel category. CSA G40.21 400W is typically used for heavy structural fabrication, bridges, offshore platforms, cranes, pressure vessels, mining equipment., while EN 10025-3 S420JR is commonly used for used in bridges, heavy machinery frames, structural beams, offshore structures, and crane components.. CSA G40.21 400W is defined under Canadian Standards Association (CSA), originating from Canada, while EN 10025-3 S420JR is defined under European Standard (EN), originating from Europe.

As per chemical composition, CSA G40.21 400W vs EN 10025-3 S420JR is a 95.2% match. As per mechanical properties, the match is 47.1%. Combined, this makes them a close alternative overall at 79.2%.

Frequently Compared With CSA G40.21 400W:
AS/NZS 1595 C450 AS/NZS 3679.1 300 CSA G40.21 300W AS/NZS 3679.1 350 IS 2062 E250A ASTM A1008 SS Grade 80 IS 2062 E250B0 GOST 19281 09G2S AS/NZS 1595 C350 ASTM A1008 SS Grade 50 CSA G40.21 350W CSA G40.21 400A
Match Breakdown
CHEMISTRY MATCH
95.2%
MECHANICAL MATCH
47.1%
OVERALL
79.2%
Specifications
Property CSA G40.21 400W EN 10025-3 S420JR
Standard CSA G40.21-13 (R2023) EN 10025-3:2019
Category Structural Steel Structural Steel
C (%) max 0.23 0.20 max
Mn (%) max 1.6 1.70 max
Si (%) max 0.5 0.55 max
P (%) max 0.035 0.030 max
S (%) max 0.035 0.030 max
N (%) Not specified 0.015 max
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property CSA G40.21 400W EN 10025-3 S420JR
Yield Strength 400 MPa min 420 MPa min
Tensile Strength 520-690 MPa 520-680 MPa
Elongation Not specified 17% min
Hardness Not specified 170-220 HB
Typical Applications
CSA G40.21 400W
Heavy structural fabrication, bridges, offshore platforms, cranes, pressure vessels, mining equipment.
EN 10025-3 S420JR
Used in bridges, heavy machinery frames, structural beams, offshore structures, and crane components.
Key Differences
Can CSA G40.21 400W Be Substituted With EN 10025-3 S420JR?
CSA G40.21 400W and EN 10025-3 S420JR 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.
Forms & Sizes Available on M-EX
CSA G40.21 400W
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2500–5200 mm (98.43–204.72 in)
EN 10025-3 S420JR
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 3500–3900 mm (137.8–153.54 in)
On M-EX Right Now
CSA G40.21 400W
2 active listings and RFQs →
EN 10025-3 S420JR
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between CSA G40.21 400W and EN 10025-3 S420JR?
EN 10025-3 S420JR specifies N which is not specified for CSA G40.21 400W.
Can CSA G40.21 400W be substituted with EN 10025-3 S420JR?
CSA G40.21 400W and EN 10025-3 S420JR 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.