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CSA G40.21 300W vs ASTM A283C

Related Material — 64% match based on chemical composition and mechanical property overlap.

CSA G40.21 300W (CSA G40.21-13 (R2023)) and ASTM A283C (ASTM A283) 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 ASTM A283C is commonly used for used for structural fabrication, storage tanks, buildings, bridges, machinery bases, and welded structures.. CSA G40.21 300W is defined under Canadian Standards Association (CSA), originating from Canada, while ASTM A283C is defined under ASTM International, originating from United States.

As per chemical composition, CSA G40.21 300W vs ASTM A283C is a 91.4% match. As per mechanical properties, the match is 9%. Combined, this makes them a related material overall at 64%.

Frequently Compared With CSA G40.21 300W:
CSA G40.21 400W AS/NZS 1595 C350 CSA G40.21 480W ASTM A1008 SS Grade 50 GOST 19281 09G2S CSA G40.21 400A AS/NZS 1595 C450 CSA G40.21 260W ASTM A572 Grade 50 IS 2062 E250A ASTM A572 Gr.65 IS 2062 E250B0
Match Breakdown
CHEMISTRY MATCH
91.4%
MECHANICAL MATCH
9%
OVERALL
64%
Specifications
Property CSA G40.21 300W ASTM A283C
Standard CSA G40.21-13 (R2023) ASTM A283
Category Structural Steel Structural Steel
C (%) <=0.23 0.24 max
Mn (%) <=1.50 0.90 max
P (%) <=0.040 0.035 max
S (%) <=0.050 0.040 max
Si (%) Not specified 0.40 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 300W ASTM A283C
Tensile Strength 450-620 MPa 380-515 MPa
Yield Strength 300 MPa min 205 MPa min
Elongation 20-23 % 23-27%
Hardness Not specified 120-170 HB
Typical Applications
CSA G40.21 300W
structural fabrication,bridges,buildings,machinery frames,general construction,welded structures
ASTM A283C
Used for structural fabrication, storage tanks, buildings, bridges, machinery bases, and welded structures.
Key Differences
Can CSA G40.21 300W Be Substituted With ASTM A283C?
CSA G40.21 300W and ASTM A283C 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)
ASTM A283C
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2900–3700 mm (114.17–145.67 in)
On M-EX Right Now
CSA G40.21 300W
2 active listings and RFQs →
ASTM A283C
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between CSA G40.21 300W and ASTM A283C?
ASTM A283C specifies Si which is not specified for CSA G40.21 300W.
Can CSA G40.21 300W be substituted with ASTM A283C?
CSA G40.21 300W and ASTM A283C 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.