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CSA G40.21 50W vs CSA G40.21 350A

Close Alternative — 80.5% match based on chemical composition and mechanical property overlap.

CSA G40.21 50W (CSA G40.21-13 (R2023)) and CSA G40.21 350A (CSA G40.21-13 (R2023)) are both steel grades. Both fall under the Structural Steel (Corten / Weathering) category. CSA G40.21 50W is typically used for bridges, architectural structures, transmission towers, outdoor exposed structures, railway wagons., while CSA G40.21 350A is commonly used for exposed structural steelwork, bridges, retaining walls, coastal infrastructure, architectural facades.. CSA G40.21 50W is defined under Canadian Standards Association (CSA), originating from Canada, while CSA G40.21 350A is defined under Canadian Standards Association (CSA), originating from Canada.

As per chemical composition, CSA G40.21 50W vs CSA G40.21 350A is a 100% match. As per mechanical properties, the match is 41.5%. Combined, this makes them a close alternative overall at 80.5%.

Frequently Compared With CSA G40.21 50W:
CSA G40.21 260WT ASTM A588 Grade A AS/NZS 3678 Grade 350WR EN 10025-5 S355J2W ASTM A588 EN 10025-5 S355J0WP EN 10025-5 S355J2WP ASTM A709 Grade HPS 70W JIS G3114 SMA400 CSA G40.21 480A ASTM A588 Grade B EN 10025-5 S235J2W
Match Breakdown
CHEMISTRY MATCH
100%
MECHANICAL MATCH
41.5%
OVERALL
80.5%
Specifications
Property CSA G40.21 50W CSA G40.21 350A
Standard CSA G40.21-13 (R2023) CSA G40.21-13 (R2023)
Category Structural Steel (Corten / Weathering) Structural Steel (Corten / Weathering)
C (%) max 0.19 max 0.19
Mn (%) max 1.35 max 1.35
Si (%) max 0.65 max 0.65
P (%) max 0.035 max 0.035
S (%) max 0.035 max 0.035
Cu (%) 0.25-0.4 0.25-0.4
Cr (%) 0.4-0.65 0.4-0.65
Ni (%) 0.4-0.7 0.4-0.7
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 50W CSA G40.21 350A
Yield Strength 345 MPa (50 ksi) min 350 MPa min
Tensile Strength 450-655 MPa (65-95 ksi) 480-650 MPa
Elongation 19% min Not specified
Typical Applications
CSA G40.21 50W
Bridges, architectural structures, transmission towers, outdoor exposed structures, railway wagons.
CSA G40.21 350A
Exposed structural steelwork, bridges, retaining walls, coastal infrastructure, architectural facades.
Can CSA G40.21 50W Be Substituted With CSA G40.21 350A?
CSA G40.21 50W and CSA G40.21 350A 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 50W
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2700–4300 mm (106.3–169.29 in)
CSA G40.21 350A
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 3300–3400 mm (129.92–133.86 in)
On M-EX Right Now
CSA G40.21 50W
2 active listings and RFQs →
CSA G40.21 350A
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between CSA G40.21 50W and CSA G40.21 350A?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can CSA G40.21 50W be substituted with CSA G40.21 350A?
CSA G40.21 50W and CSA G40.21 350A 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.