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CSA G40.21 480W vs CSA G40.21 400W

Close Alternative — 72.6% match based on chemical composition and mechanical property overlap.

CSA G40.21 480W (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 480W is typically used for heavy cranes, offshore structures, high-rise building frames, pressure vessels, heavy mining equipment., while CSA G40.21 400W is commonly used for heavy structural fabrication, bridges, offshore platforms, cranes, pressure vessels, mining equipment.. CSA G40.21 480W 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 480W vs CSA G40.21 400W is a 99.7% match. As per mechanical properties, the match is 18.5%. Combined, this makes them a close alternative overall at 72.6%.

Frequently Compared With CSA G40.21 480W:
AS/NZS 1595 C350 AS/NZS 3679.1 350 AS/NZS 3679.1 300 AS/NZS 1595 C450 CSA G40.21 350W IS 2062 E250A CSA G40.21 400A IS 2062 E250B0 CSA G40.21 300W ASTM A1008 SS Grade 80 GOST 19281 09G2S ASTM A283C
Match Breakdown
CHEMISTRY MATCH
99.7%
MECHANICAL MATCH
18.5%
OVERALL
72.6%
Specifications
Property CSA G40.21 480W CSA G40.21 400W
Standard CSA G40.21-13 (R2023) CSA G40.21-13 (R2023)
Category Structural Steel Structural Steel
C (%) max 0.23 max 0.23
Mn (%) max 1.7 max 1.6
Si (%) max 0.5 max 0.5
P (%) max 0.035 max 0.035
S (%) max 0.035 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 480W CSA G40.21 400W
Yield Strength 480 MPa min 400 MPa min
Tensile Strength 590-790 MPa 520-690 MPa
Typical Applications
CSA G40.21 480W
Heavy cranes, offshore structures, high-rise building frames, pressure vessels, heavy mining equipment.
CSA G40.21 400W
Heavy structural fabrication, bridges, offshore platforms, cranes, pressure vessels, mining equipment.
Can CSA G40.21 480W Be Substituted With CSA G40.21 400W?
CSA G40.21 480W and CSA G40.21 400W 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 480W
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2900–3000 mm (114.17–118.11 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 480W
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 480W 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 480W be substituted with CSA G40.21 400W?
CSA G40.21 480W and CSA G40.21 400W 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.