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GB/T 700 Q235 vs ASTM A1008 SS Grade 80

Minimal Match — 35% match based on chemical composition and mechanical property overlap.

GB/T 700 Q235 (GB/T 700-2006) and ASTM A1008 SS Grade 80 (ASTM A1008) are both steel grades. Both fall under the Structural Steel category. GB/T 700 Q235 is typically used for general structural fabrication, bridges, buildings, while ASTM A1008 SS Grade 80 is commonly used for cold-rolled high-strength structural steel sheet, higher strength grade; automotive structural/reinforcement components, cold-formed high-strength parts. GB/T 700 Q235 is defined under Guobiao Standards (GB/T), originating from China, while ASTM A1008 SS Grade 80 is defined under ASTM International, originating from United States.

As per chemical composition, GB/T 700 Q235 vs ASTM A1008 SS Grade 80 is a 82.5% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With GB/T 700 Q235:
GOST 19281 09G2S ASTM A1008 SS Grade 50 CSA G40.21 350W ASTM A572 Gr.65 CSA G40.21 400W CSA G40.21 300W CSA G40.21 400A AS/NZS 3679.1 300 AS/NZS 3679.1 350 ASTM A283C CSA G40.21 480W CSA G40.21 260W
Match Breakdown
CHEMISTRY MATCH
82.5%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property GB/T 700 Q235 ASTM A1008 SS Grade 80
Standard GB/T 700-2006 ASTM A1008
Category Structural Steel Structural Steel
C (%) ≤0.22 <=0.25
Mn (%) 0.30–0.70 <=1.65
Si (%) ≤0.35 <=0.50
S (%) ≤0.050 <=0.040
P (%) ≤0.045 <=0.040
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property GB/T 700 Q235 ASTM A1008 SS Grade 80
Tensile Strength 375–500 MPa 570 MPa min
Yield Strength ≥235 MPa 550 MPa min
Elongation ≥26% 10% min
Typical Applications
GB/T 700 Q235
General structural fabrication, bridges, buildings
ASTM A1008 SS Grade 80
Cold-rolled high-strength structural steel sheet, higher strength grade; automotive structural/reinforcement components, cold-formed high-strength parts
Can GB/T 700 Q235 Be Substituted With ASTM A1008 SS Grade 80?
GB/T 700 Q235 and ASTM A1008 SS Grade 80 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
GB/T 700 Q235
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 3100–3700 mm (122.05–145.67 in)
ASTM A1008 SS Grade 80
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2500–3700 mm (98.43–145.67 in)
On M-EX Right Now
GB/T 700 Q235
2 active listings and RFQs →
ASTM A1008 SS Grade 80
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between GB/T 700 Q235 and ASTM A1008 SS Grade 80?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can GB/T 700 Q235 be substituted with ASTM A1008 SS Grade 80?
GB/T 700 Q235 and ASTM A1008 SS Grade 80 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.