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GB/T 700 Q275C vs ASTM A283C

Close Alternative — 70.8% match based on chemical composition and mechanical property overlap.

GB/T 700 Q275C (GB/T 700:2006) and ASTM A283C (ASTM A283) are both steel grades. Both fall under the Structural Steel category. GB/T 700 Q275C is typically used for hot rolled structural sheets, strips, sections and bars for welding, riveting and bolting engineering, while ASTM A283C is commonly used for used for structural fabrication, storage tanks, buildings, bridges, machinery bases, and welded structures.. GB/T 700 Q275C is defined under Guobiao Standards (GB/T), originating from China, while ASTM A283C is defined under ASTM International, originating from United States.

As per chemical composition, GB/T 700 Q275C vs ASTM A283C is a 95.2% match. As per mechanical properties, the match is 21.9%. Combined, this makes them a close alternative overall at 70.8%.

Frequently Compared With GB/T 700 Q275C:
CSA G40.21 260W AS/NZS 3679.1 300 CSA G40.21 300W AS/NZS 3679.1 350 CSA G40.21 400A CSA G40.21 400W GOST 19281 09G2S CSA G40.21 350W CSA G40.21 480W ASTM A1008 SS Grade 50 ASTM A1008 SS Grade 80 ASTM A572 Gr.65
Match Breakdown
CHEMISTRY MATCH
95.2%
MECHANICAL MATCH
21.9%
OVERALL
70.8%
Specifications
Property GB/T 700 Q275C ASTM A283C
Standard GB/T 700:2006 ASTM A283
Category Structural Steel Structural Steel
C (%) <=0.20 0.24 max
Si (%) <=0.35 0.40 max
Mn (%) <=1.50 0.90 max
P (%) <=0.040 0.035 max
S (%) <=0.040 0.040 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 Q275C ASTM A283C
Tensile Strength 410-540 MPa 380-515 MPa
Yield Strength >=275 MPa 205 MPa min
Elongation >=22% 23-27%
Condition Hot rolled, controlled rolled or normalized; yield up to 16 mm, elongation up to 40 mm (N/mm2 = MPa) Not specified
Hardness Not specified 120-170 HB
Typical Applications
GB/T 700 Q275C
Hot rolled structural sheets, strips, sections and bars for welding, riveting and bolting engineering
ASTM A283C
Used for structural fabrication, storage tanks, buildings, bridges, machinery bases, and welded structures.
Can GB/T 700 Q275C Be Substituted With ASTM A283C?
GB/T 700 Q275C and ASTM A283C are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
Forms & Sizes Available on M-EX
GB/T 700 Q275C
No active listings currently.
ASTM A283C
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2900–3700 mm (114.17–145.67 in)
On M-EX Right Now
GB/T 700 Q275C
0 active listings and RFQs →
ASTM A283C
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between GB/T 700 Q275C and ASTM A283C?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can GB/T 700 Q275C be substituted with ASTM A283C?
GB/T 700 Q275C and ASTM A283C are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.