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JIS G3131 SPHC vs ASTM A1008 SS Grade 50

Related Material — 58.9% match based on chemical composition and mechanical property overlap.

JIS G3131 SPHC (JIS G 3131:2010) and ASTM A1008 SS Grade 50 (ASTM A1008) 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 ASTM A1008 SS Grade 50 is commonly used for cold-rolled high-strength structural steel sheet; automotive structural components, cold-formed parts requiring moderate strength. JIS G3131 SPHC is defined under Japanese Industrial Standards (JIS), originating from Japan, while ASTM A1008 SS Grade 50 is defined under ASTM International, originating from United States.

As per chemical composition, JIS G3131 SPHC vs ASTM A1008 SS Grade 50 is a 88.4% match. As per mechanical properties, the match is 0%. Combined, this makes them a related material overall at 58.9%.

Frequently Compared With JIS G3131 SPHC:
CSA G40.21 480W CSA G40.21 300W CSA G40.21 260W AS/NZS 3679.1 300 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
88.4%
MECHANICAL MATCH
0%
OVERALL
58.9%
Specifications
Property JIS G3131 SPHC ASTM A1008 SS Grade 50
Standard JIS G 3131:2010 ASTM A1008
Category Structural Steel Structural Steel
C (%) 0.15 max <=0.20
Mn (%) 0.60 max <=1.35
P (%) 0.050 max <=0.040
S (%) 0.050 max <=0.040
Si (%) Not specified <=0.50
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 ASTM A1008 SS Grade 50
Tensile Strength 270-410 MPa 380 MPa min
Yield Strength 205 MPa min 340 MPa min
Elongation 28% min 14% min
Hardness 95-130 HB Not specified
Typical Applications
JIS G3131 SPHC
Used in automotive parts, welded tubes, drums, furniture, brackets, and sheet metal fabrications.
ASTM A1008 SS Grade 50
Cold-rolled high-strength structural steel sheet; automotive structural components, cold-formed parts requiring moderate strength
Key Differences
Can JIS G3131 SPHC Be Substituted With ASTM A1008 SS Grade 50?
JIS G3131 SPHC and ASTM A1008 SS Grade 50 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)
ASTM A1008 SS Grade 50
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2700–3400 mm (106.3–133.86 in)
On M-EX Right Now
JIS G3131 SPHC
2 active listings and RFQs →
ASTM A1008 SS Grade 50
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between JIS G3131 SPHC and ASTM A1008 SS Grade 50?
ASTM A1008 SS Grade 50 specifies Si which is not specified for JIS G3131 SPHC.
Can JIS G3131 SPHC be substituted with ASTM A1008 SS Grade 50?
JIS G3131 SPHC and ASTM A1008 SS Grade 50 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.