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JIS G3131 SPHC vs CSA G40.21 400A

Related Material — 55.9% match based on chemical composition and mechanical property overlap.

JIS G3131 SPHC (JIS G 3131:2010) and CSA G40.21 400A (CSA G40.21-13 (R2023)) are both steel grades. Both fall under the Structural Steel category. JIS G3131 SPHC is typically used for used in automotive parts, welded tubes, drums, furniture, brackets, and sheet metal fabrications., while CSA G40.21 400A is commonly used for atmospheric corrosion-resistant (weathering) structural steel; exposed bridge girders and structural members where high strength and weathering resistance are both needed. JIS G3131 SPHC is defined under Japanese Industrial Standards (JIS), originating from Japan, while CSA G40.21 400A is defined under Canadian Standards Association (CSA), originating from Canada.

As per chemical composition, JIS G3131 SPHC vs CSA G40.21 400A is a 83.9% match. As per mechanical properties, the match is 0%. Combined, this makes them a related material overall at 55.9%.

Frequently Compared With JIS G3131 SPHC:
CSA G40.21 480W CSA G40.21 300W ASTM A1008 SS Grade 50 CSA G40.21 260W AS/NZS 3679.1 300 CSA G40.21 400W GOST 19281 09G2S CSA G40.21 350W AS/NZS 3679.1 350 ASTM A283C ASTM A1008 SS Grade 80 ASTM A572 Gr.65
Match Breakdown
CHEMISTRY MATCH
83.9%
MECHANICAL MATCH
0%
OVERALL
55.9%
Specifications
Property JIS G3131 SPHC CSA G40.21 400A
Standard JIS G 3131:2010 CSA G40.21-13 (R2023)
Category Structural Steel Structural Steel
C (%) 0.15 max <=0.23
Mn (%) 0.60 max <=1.60
P (%) 0.050 max <=0.035
S (%) 0.050 max <=0.035
Si (%) Not specified <=0.40
Cu (%) Not specified 0.20-0.40
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property JIS G3131 SPHC CSA G40.21 400A
Tensile Strength 270-410 MPa 520-670 MPa
Yield Strength 205 MPa min 400 MPa min
Elongation 28% min 17% min
Hardness 95-130 HB Not specified
Impact Not specified 27J at 0°C
Typical Applications
JIS G3131 SPHC
Used in automotive parts, welded tubes, drums, furniture, brackets, and sheet metal fabrications.
CSA G40.21 400A
Atmospheric corrosion-resistant (weathering) structural steel; exposed bridge girders and structural members where high strength and weathering resistance are both needed
Key Differences
Can JIS G3131 SPHC Be Substituted With CSA G40.21 400A?
JIS G3131 SPHC and CSA G40.21 400A 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 G3131 SPHC
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 4000–4200 mm (157.48–165.35 in)
CSA G40.21 400A
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2800–4200 mm (110.24–165.35 in)
On M-EX Right Now
JIS G3131 SPHC
2 active listings and RFQs →
CSA G40.21 400A
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between JIS G3131 SPHC and CSA G40.21 400A?
CSA G40.21 400A specifies Si, Cu which are not specified for JIS G3131 SPHC.
Can JIS G3131 SPHC be substituted with CSA G40.21 400A?
JIS G3131 SPHC and CSA G40.21 400A 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.