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JIS G 3114:2022 SMA400 Steel: Specifications & Listings

JIS G 3114:2022 SMA400: SMA400 is a weathering structural steel with enhanced atmospheric corrosion resistance for outdoor applications. It develops a protective oxide layer that reduces maintenance requirements in exposed environments.

Forms: Plate Category: Structural Steel (Corten / Weathering)
Grade Details
GradeJIS G 3114:2022 SMA400
Standard JIS G 3114:2022
ApplicationsUsed in bridges, transmission towers, railway wagons, containers, and structural frameworks.
Most Active InCentral (Uttar Pradesh)
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Grade Standard Match
ASTM A959 443 ASTM A959:2011 Related Material
ASTM A959 XM-12 ASTM A959:2011 Related Material
ASTM A959 630 ASTM A959:2011 Related Material
EN 10088-1 X8CrNiS18-9 EN 10088-1:2014 Related Material
EN 10088-1 X8CrNiS18-9 EN 10088-1:2023 Related Material
IS 1570 (Part 6) 50T8 IS 1570 (Part 6):1996 Related Material
IS 1570 (Part 6) 55T8 IS 1570 (Part 6):1996 Related Material
IS 1570 (Part 6) 60T6 IS 1570 (Part 6):1996 Related Material
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C Si Mn P S Cu Cr Ni
0.18 max 0.35-0.75 0.60-1.40 0.035 max 0.035 max 0.20-0.50 0.30-1.25 0.20-0.65
Mechanical Properties
Tensile Strength 400-540 MPa
Yield Strength 245 MPa min
Elongation 17% min
Hardness 120-170 HB

Popular forms for this grade:

Plate (2)

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JIS G 3114:2022 SMA400 Plate
5.100 MT
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JIS G 3114:2022 SMA400 Plate
6.400 MT
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