Post Stock Login Register

GB/T 700 Q235 vs ASTM A572 Gr.65

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

GB/T 700 Q235 (GB/T 700-2006) and ASTM A572 Gr.65 (ASTM A572) 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 A572 Gr.65 is commonly used for used for bridges, buildings, transmission towers, construction equipment, offshore structures, and structural members.. GB/T 700 Q235 is defined under Guobiao Standards (GB/T), originating from China, while ASTM A572 Gr.65 is defined under ASTM International, originating from United States.

As per chemical composition, GB/T 700 Q235 vs ASTM A572 Gr.65 is a 79.9% 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 A1008 SS Grade 80 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
79.9%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property GB/T 700 Q235 ASTM A572 Gr.65
Standard GB/T 700-2006 ASTM A572
Category Structural Steel Structural Steel
C (%) ≤0.22 0.23 max
Mn (%) 0.30–0.70 1.35 max
Si (%) ≤0.35 0.40 max
S (%) ≤0.050 0.050 max
P (%) ≤0.045 0.040 max
V (%) Not specified 0.15 max
Nb (%) Not specified 0.05 max
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 A572 Gr.65
Tensile Strength 375–500 MPa 550-690 MPa
Yield Strength ≥235 MPa 450 MPa min
Elongation ≥26% 18-21%
Hardness Not specified 170-220 HB
Typical Applications
GB/T 700 Q235
General structural fabrication, bridges, buildings
ASTM A572 Gr.65
Used for bridges, buildings, transmission towers, construction equipment, offshore structures, and structural members.
Key Differences
Can GB/T 700 Q235 Be Substituted With ASTM A572 Gr.65?
GB/T 700 Q235 and ASTM A572 Gr.65 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 A572 Gr.65
Plate → (4 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2600–4400 mm (102.36–173.23 in)
On M-EX Right Now
GB/T 700 Q235
2 active listings and RFQs →
ASTM A572 Gr.65
4 active listings and RFQs →
Frequently Asked Questions
What is the difference between GB/T 700 Q235 and ASTM A572 Gr.65?
ASTM A572 Gr.65 specifies V, Nb which are not specified for GB/T 700 Q235.
Can GB/T 700 Q235 be substituted with ASTM A572 Gr.65?
GB/T 700 Q235 and ASTM A572 Gr.65 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.