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JIS G3114 SMA400 vs CSA G40.21 350A

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

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

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