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CSA G40.21 350W vs GOST 19281 09G2S

Minimal Match — 35% match based on chemical composition and mechanical property overlap.

CSA G40.21 350W (CSA G40.21-13 (R2023)) and GOST 19281 09G2S (GOST 19281-2014) 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 GOST 19281 09G2S is commonly used for used for bridges, pressure vessels, pipelines, structural frames, and heavy equipment components.. CSA G40.21 350W is defined under Canadian Standards Association (CSA) (Canada).

As per chemical composition, CSA G40.21 350W vs GOST 19281 09G2S is a 65.2% match. As per mechanical properties, the match is 35.3%. Combined, this makes them a minimal match overall at 35%.

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 CSA G40.21 400W IS 2062 E250A ASTM A572 Gr.65 ASTM A1008 SS Grade 80 ASTM A572 Grade 50
Match Breakdown
CHEMISTRY MATCH
65.2%
MECHANICAL MATCH
35.3%
OVERALL
35%
Specifications
Property CSA G40.21 350W GOST 19281 09G2S
Standard CSA G40.21-13 (R2023) GOST 19281-2014
Category Structural Steel Structural Steel
C (%) 0.23 max 0.07-0.12
Mn (%) 0.50-1.50 1.3-1.7
Si (%) 0.15-0.40 0.5-0.8
P (%) 0.040 max 0.035 max
S (%) 0.050 max 0.04 max
Ni (%) Not specified 0.3 max
Cr (%) Not specified 0.3 max
Cu (%) Not specified 0.3 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 350W GOST 19281 09G2S
Tensile Strength 450-620 MPa 490-640 MPa
Yield Strength 350 MPa min 345 MPa min
Elongation 20% min 21% min
Hardness 135-180 HB 140-190 HB
Typical Applications
CSA G40.21 350W
Used in buildings, bridges, cranes, transmission towers, heavy equipment, and structural fabrications.
GOST 19281 09G2S
Used for bridges, pressure vessels, pipelines, structural frames, and heavy equipment components.
Key Differences
Can CSA G40.21 350W Be Substituted With GOST 19281 09G2S?
CSA G40.21 350W and GOST 19281 09G2S 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)
GOST 19281 09G2S
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2900–3800 mm (114.17–149.61 in)
On M-EX Right Now
CSA G40.21 350W
2 active listings and RFQs →
GOST 19281 09G2S
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between CSA G40.21 350W and GOST 19281 09G2S?
GOST 19281 09G2S specifies Ni, Cr, Cu which are not specified for CSA G40.21 350W.
Can CSA G40.21 350W be substituted with GOST 19281 09G2S?
CSA G40.21 350W and GOST 19281 09G2S 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.