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CSA G40.21 350A vs JIS G3114 SMA400

Related Material — 57.5% match based on chemical composition and mechanical property overlap.

CSA G40.21 350A (CSA G40.21-13 (R2023)) and JIS G3114 SMA400 (JIS G 3114:2022) are both steel grades. Both fall under the Structural Steel (Corten / Weathering) category. CSA G40.21 350A is typically used for exposed structural steelwork, bridges, retaining walls, coastal infrastructure, architectural facades., while JIS G3114 SMA400 is commonly used for used in bridges, transmission towers, railway wagons, containers, and structural frameworks.. CSA G40.21 350A is defined under Canadian Standards Association (CSA), originating from Canada, while JIS G3114 SMA400 is defined under Japanese Industrial Standards (JIS), originating from Japan.

As per chemical composition, CSA G40.21 350A vs JIS G3114 SMA400 is a 80.3% match. As per mechanical properties, the match is 12%. Combined, this makes them a related material overall at 57.5%.

Frequently Compared With CSA G40.21 350A:
ASTM A588 AS/NZS 3678 Grade 350WR EN 10025-5 S355J2WP CSA G40.21 260WT CSA G40.21 50W EN 10025-5 S355J2W EN 10025-5 S355J0WP ASTM A588 Grade A ASTM A709 Grade HPS 70W CSA G40.21 480A EN 10025-5 S235J2W ASTM A588 Grade B
Match Breakdown
CHEMISTRY MATCH
80.3%
MECHANICAL MATCH
12%
OVERALL
57.5%
Specifications
Property CSA G40.21 350A JIS G3114 SMA400
Standard CSA G40.21-13 (R2023) JIS G 3114:2022
Category Structural Steel (Corten / Weathering) Structural Steel (Corten / Weathering)
C (%) max 0.19 0.18 max
Mn (%) max 1.35 0.60-1.40
Si (%) max 0.65 0.35-0.75
P (%) max 0.035 0.035 max
S (%) max 0.035 0.035 max
Cu (%) 0.25-0.4 0.20-0.50
Cr (%) 0.4-0.65 0.30-1.25
Ni (%) 0.4-0.7 0.20-0.65
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 350A JIS G3114 SMA400
Yield Strength 350 MPa min 245 MPa min
Tensile Strength 480-650 MPa 400-540 MPa
Elongation Not specified 17% min
Hardness Not specified 120-170 HB
Typical Applications
CSA G40.21 350A
Exposed structural steelwork, bridges, retaining walls, coastal infrastructure, architectural facades.
JIS G3114 SMA400
Used in bridges, transmission towers, railway wagons, containers, and structural frameworks.
Can CSA G40.21 350A Be Substituted With JIS G3114 SMA400?
CSA G40.21 350A and JIS G3114 SMA400 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 350A
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 3300–3400 mm (129.92–133.86 in)
JIS G3114 SMA400
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2800–4100 mm (110.24–161.42 in)
On M-EX Right Now
CSA G40.21 350A
2 active listings and RFQs →
JIS G3114 SMA400
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between CSA G40.21 350A and JIS G3114 SMA400?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can CSA G40.21 350A be substituted with JIS G3114 SMA400?
CSA G40.21 350A and JIS G3114 SMA400 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.