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JIS G3131 SPHC vs CSA G40.21 300W

Related Material — 62% match based on chemical composition and mechanical property overlap.

JIS G3131 SPHC (JIS G 3131:2010) and CSA G40.21 300W (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 300W is commonly used for structural fabrication,bridges,buildings,machinery frames,general construction,welded structures. JIS G3131 SPHC is defined under Japanese Industrial Standards (JIS), originating from Japan, while CSA G40.21 300W is defined under Canadian Standards Association (CSA), originating from Canada.

As per chemical composition, JIS G3131 SPHC vs CSA G40.21 300W is a 93% match. As per mechanical properties, the match is 0%. Combined, this makes them a related material overall at 62%.

Frequently Compared With JIS G3131 SPHC:
CSA G40.21 480W CSA G40.21 260W AS/NZS 3679.1 300 ASTM A1008 SS Grade 50 CSA G40.21 400A 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
93%
MECHANICAL MATCH
0%
OVERALL
62%
Specifications
Property JIS G3131 SPHC CSA G40.21 300W
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 <=1.50
P (%) 0.050 max <=0.040
S (%) 0.050 max <=0.050
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 300W
Tensile Strength 270-410 MPa 450-620 MPa
Yield Strength 205 MPa min 300 MPa min
Elongation 28% min 20-23 %
Hardness 95-130 HB Not specified
Typical Applications
JIS G3131 SPHC
Used in automotive parts, welded tubes, drums, furniture, brackets, and sheet metal fabrications.
CSA G40.21 300W
structural fabrication,bridges,buildings,machinery frames,general construction,welded structures
Can JIS G3131 SPHC Be Substituted With CSA G40.21 300W?
JIS G3131 SPHC and CSA G40.21 300W 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 300W
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2700–2800 mm (106.3–110.24 in)
On M-EX Right Now
JIS G3131 SPHC
2 active listings and RFQs →
CSA G40.21 300W
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between JIS G3131 SPHC and CSA G40.21 300W?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can JIS G3131 SPHC be substituted with CSA G40.21 300W?
JIS G3131 SPHC and CSA G40.21 300W 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.