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CSA G40.21 350W vs CSA G40.21 400W

Related Material — 69.5% match based on chemical composition and mechanical property overlap.

CSA G40.21 350W (CSA G40.21-13 (R2023)) and CSA G40.21 400W (CSA G40.21-13 (R2023)) are both steel grades. Both fall under the Structural Steel category. CSA G40.21 350W is typically used for used in buildings, bridges, cranes, transmission towers, heavy equipment, and structural fabrications., while CSA G40.21 400W is commonly used for heavy structural fabrication, bridges, offshore platforms, cranes, pressure vessels, mining equipment.. CSA G40.21 350W is defined under Canadian Standards Association (CSA), originating from Canada, while CSA G40.21 400W is defined under Canadian Standards Association (CSA), originating from Canada.

As per chemical composition, CSA G40.21 350W vs CSA G40.21 400W is a 93.8% match. As per mechanical properties, the match is 20.8%. Combined, this makes them a related material overall at 69.5%.

Frequently Compared With CSA G40.21 350W:
AS/NZS 3679.1 350 CSA G40.21 480W IS 2062 E250B0 AS/NZS 1595 C350 AS/NZS 1595 C450 CSA G40.21 400A CSA G40.21 260W IS 2062 E250A GOST 19281 09G2S ASTM A572 Gr.65 ASTM A1008 SS Grade 80 ASTM A572 Grade 50
Match Breakdown
CHEMISTRY MATCH
93.8%
MECHANICAL MATCH
20.8%
OVERALL
69.5%
Specifications
Property CSA G40.21 350W CSA G40.21 400W
Standard CSA G40.21-13 (R2023) CSA G40.21-13 (R2023)
Category Structural Steel Structural Steel
C (%) 0.23 max max 0.23
Mn (%) 0.50-1.50 max 1.6
Si (%) 0.15-0.40 max 0.5
P (%) 0.040 max max 0.035
S (%) 0.050 max max 0.035
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 350W CSA G40.21 400W
Tensile Strength 450-620 MPa 520-690 MPa
Yield Strength 350 MPa min 400 MPa min
Elongation 20% min Not specified
Hardness 135-180 HB Not specified
Typical Applications
CSA G40.21 350W
Used in buildings, bridges, cranes, transmission towers, heavy equipment, and structural fabrications.
CSA G40.21 400W
Heavy structural fabrication, bridges, offshore platforms, cranes, pressure vessels, mining equipment.
Can CSA G40.21 350W Be Substituted With CSA G40.21 400W?
CSA G40.21 350W and CSA G40.21 400W 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.
Forms & Sizes Available on M-EX
CSA G40.21 350W
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2700–3400 mm (106.3–133.86 in)
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)
On M-EX Right Now
CSA G40.21 350W
2 active listings and RFQs →
CSA G40.21 400W
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between CSA G40.21 350W and CSA G40.21 400W?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can CSA G40.21 350W be substituted with CSA G40.21 400W?
CSA G40.21 350W and CSA G40.21 400W 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.