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GOST 19281 09G2S vs CSA G40.21 350W

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

GOST 19281 09G2S (GOST 19281-2014) and CSA G40.21 350W (CSA G40.21-13 (R2023)) are both steel grades. Both fall under the Structural Steel category. GOST 19281 09G2S is typically used for used for bridges, pressure vessels, pipelines, structural frames, and heavy equipment components., while CSA G40.21 350W is commonly used for used in buildings, bridges, cranes, transmission towers, heavy equipment, and structural fabrications.. CSA G40.21 350W is defined under Canadian Standards Association (CSA) (Canada).

As per chemical composition, GOST 19281 09G2S vs CSA G40.21 350W 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 GOST 19281 09G2S:
ASTM A1008 SS Grade 50 AS/NZS 1595 C450 IS 2062 E250B0 CSA G40.21 400W CSA G40.21 300W ASTM A1008 SS Grade 80 CSA G40.21 260W CSA G40.21 480W AS/NZS 1595 C350 ASTM A572 Grade 50 IS 2062 E250A ASTM A572 Gr.65
Match Breakdown
CHEMISTRY MATCH
65.2%
MECHANICAL MATCH
35.3%
OVERALL
35%
Specifications
Property GOST 19281 09G2S CSA G40.21 350W
Standard GOST 19281-2014 CSA G40.21-13 (R2023)
Category Structural Steel Structural Steel
C (%) 0.07-0.12 0.23 max
Mn (%) 1.3-1.7 0.50-1.50
Si (%) 0.5-0.8 0.15-0.40
S (%) 0.04 max 0.050 max
P (%) 0.035 max 0.040 max
Ni (%) 0.3 max Not specified
Cr (%) 0.3 max Not specified
Cu (%) 0.3 max Not specified
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property GOST 19281 09G2S CSA G40.21 350W
Tensile Strength 490-640 MPa 450-620 MPa
Yield Strength 345 MPa min 350 MPa min
Elongation 21% min 20% min
Hardness 140-190 HB 135-180 HB
Typical Applications
GOST 19281 09G2S
Used for bridges, pressure vessels, pipelines, structural frames, and heavy equipment components.
CSA G40.21 350W
Used in buildings, bridges, cranes, transmission towers, heavy equipment, and structural fabrications.
Key Differences
Can GOST 19281 09G2S Be Substituted With CSA G40.21 350W?
GOST 19281 09G2S and CSA G40.21 350W 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
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)
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)
On M-EX Right Now
GOST 19281 09G2S
2 active listings and RFQs →
CSA G40.21 350W
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between GOST 19281 09G2S and CSA G40.21 350W?
GOST 19281 09G2S specifies Ni, Cr, Cu which are not specified for CSA G40.21 350W.
Can GOST 19281 09G2S be substituted with CSA G40.21 350W?
GOST 19281 09G2S and CSA G40.21 350W 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.