Close Alternative — 76.6% match
based on chemical composition and mechanical property overlap.
GB/T 700 Q275B (GB/T 700:2006) and CSA G40.21 260W (CSA G40.21-13 (R2023)) are both steel grades.
Both fall under the Structural Steel category.
GB/T 700 Q275B is typically used for hot rolled structural sheets, strips, sections and bars for welding, riveting and bolting engineering, while CSA G40.21 260W is commonly used for bridges, buildings, general structural fabrication, storage tanks, older infrastructure projects..
GB/T 700 Q275B is defined under Guobiao Standards (GB/T), originating from China, while CSA G40.21 260W is defined under Canadian Standards Association (CSA), originating from Canada.
As per chemical composition, GB/T 700 Q275B vs CSA G40.21 260W is a 96.9% match.
As per mechanical properties, the match is 36.1%.
Combined, this makes them a close alternative overall at 76.6%.
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 Q275B
CSA G40.21 260W
Tensile Strength
410-540 MPa
410-590 MPa
Yield Strength
>=275 MPa
260 MPa min
Elongation
>=22%
Not specified
Condition
Hot rolled, controlled rolled or normalized; yield up to 16 mm, elongation up to 40 mm (N/mm2 = MPa)
Not specified
Typical Applications
GB/T 700 Q275B
Hot rolled structural sheets, strips, sections and bars for welding, riveting and bolting engineering
CSA G40.21 260W
Bridges, buildings, general structural fabrication, storage tanks, older infrastructure projects.
Can GB/T 700 Q275B Be Substituted With CSA G40.21 260W?
GB/T 700 Q275B and CSA G40.21 260W 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.
What is the difference between GB/T 700 Q275B and CSA G40.21 260W?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can GB/T 700 Q275B be substituted with CSA G40.21 260W?
GB/T 700 Q275B and CSA G40.21 260W 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.