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CSA G40.21 300W vs CSA G40.21 400W

Related Material — 69.1% match based on chemical composition and mechanical property overlap.

CSA G40.21 300W (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 300W is typically used for structural fabrication,bridges,buildings,machinery frames,general construction,welded structures, while CSA G40.21 400W is commonly used for heavy structural fabrication, bridges, offshore platforms, cranes, pressure vessels, mining equipment.. CSA G40.21 300W 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 300W vs CSA G40.21 400W is a 93.3% match. As per mechanical properties, the match is 20.8%. Combined, this makes them a related material overall at 69.1%.

Frequently Compared With CSA G40.21 300W:
AS/NZS 1595 C350 ASTM A1008 SS Grade 50 CSA G40.21 480W GOST 19281 09G2S CSA G40.21 400A AS/NZS 1595 C450 CSA G40.21 260W ASTM A572 Grade 50 IS 2062 E250A IS 2062 E250B0 ASTM A572 Gr.65 ASTM A283C
Match Breakdown
CHEMISTRY MATCH
93.3%
MECHANICAL MATCH
20.8%
OVERALL
69.1%
Specifications
Property CSA G40.21 300W CSA G40.21 400W
Standard CSA G40.21-13 (R2023) CSA G40.21-13 (R2023)
Category Structural Steel Structural Steel
C (%) <=0.23 max 0.23
Mn (%) <=1.50 max 1.6
P (%) <=0.040 max 0.035
S (%) <=0.050 max 0.035
Si (%) Not specified max 0.5
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 300W CSA G40.21 400W
Tensile Strength 450-620 MPa 520-690 MPa
Yield Strength 300 MPa min 400 MPa min
Elongation 20-23 % Not specified
Typical Applications
CSA G40.21 300W
structural fabrication,bridges,buildings,machinery frames,general construction,welded structures
CSA G40.21 400W
Heavy structural fabrication, bridges, offshore platforms, cranes, pressure vessels, mining equipment.
Key Differences
Can CSA G40.21 300W Be Substituted With CSA G40.21 400W?
CSA G40.21 300W 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 300W
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2700–2800 mm (106.3–110.24 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 300W
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 300W and CSA G40.21 400W?
CSA G40.21 400W specifies Si which is not specified for CSA G40.21 300W.
Can CSA G40.21 300W be substituted with CSA G40.21 400W?
CSA G40.21 300W 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.