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JIS G3114 SMA400 vs AS/NZS 3678 Grade 350WR

Related Material — 58.3% match based on chemical composition and mechanical property overlap.

JIS G3114 SMA400 (JIS G 3114:2022) and AS/NZS 3678 Grade 350WR (AS/NZS 3678:2016) 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 AS/NZS 3678 Grade 350WR is commonly used for weather-resistant (corrosion-resistant) structural steel; exposed bridge and structural applications requiring atmospheric corrosion resistance. JIS G3114 SMA400 is defined under Japanese Industrial Standards (JIS), originating from Japan, while AS/NZS 3678 Grade 350WR is defined under Australian/New Zealand Standard (AS/NZS), originating from Australia/New Zealand.

As per chemical composition, JIS G3114 SMA400 vs AS/NZS 3678 Grade 350WR is a 83% match. As per mechanical properties, the match is 9.1%. Combined, this makes them a related material overall at 58.3%.

Frequently Compared With JIS G3114 SMA400:
EN 10025-5 S355J2W CSA G40.21 350A ASTM A588 ASTM A588 Grade A EN 10025-5 S355J0WP CSA G40.21 260WT EN 10025-5 S355J2WP ASTM A709 Grade HPS 70W CSA G40.21 50W CSA G40.21 480A ASTM A588 Grade B EN 10025-5 S235J2W
Match Breakdown
CHEMISTRY MATCH
83%
MECHANICAL MATCH
9.1%
OVERALL
58.3%
Specifications
Property JIS G3114 SMA400 AS/NZS 3678 Grade 350WR
Standard JIS G 3114:2022 AS/NZS 3678:2016
Category Structural Steel (Corten / Weathering) Structural Steel (Corten / Weathering)
C (%) 0.18 max <=0.20
Si (%) 0.35-0.75 <=0.50
Mn (%) 0.60-1.40 <=1.70
P (%) 0.035 max <=0.035
S (%) 0.035 max <=0.035
Cu (%) 0.20-0.50 0.25-0.55
Cr (%) 0.30-1.25 0.40-0.80
Ni (%) 0.20-0.65 <=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 JIS G3114 SMA400 AS/NZS 3678 Grade 350WR
Tensile Strength 400-540 MPa 480-620 MPa
Yield Strength 245 MPa min 350 MPa min
Elongation 17% min 20% min
Hardness 120-170 HB Not specified
Typical Applications
JIS G3114 SMA400
Used in bridges, transmission towers, railway wagons, containers, and structural frameworks.
AS/NZS 3678 Grade 350WR
Weather-resistant (corrosion-resistant) structural steel; exposed bridge and structural applications requiring atmospheric corrosion resistance
Can JIS G3114 SMA400 Be Substituted With AS/NZS 3678 Grade 350WR?
JIS G3114 SMA400 and AS/NZS 3678 Grade 350WR 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)
AS/NZS 3678 Grade 350WR
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2500–2800 mm (98.43–110.24 in)
On M-EX Right Now
JIS G3114 SMA400
2 active listings and RFQs →
AS/NZS 3678 Grade 350WR
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between JIS G3114 SMA400 and AS/NZS 3678 Grade 350WR?
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 AS/NZS 3678 Grade 350WR?
JIS G3114 SMA400 and AS/NZS 3678 Grade 350WR 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.