Close Alternative — 76.8% match
based on chemical composition and mechanical property overlap.
CSA G40.21 260W (CSA G40.21-13 (R2023)) and GB/T 700 Q275C (GB/T 700:2006) are both steel grades.
Both fall under the Structural Steel category.
CSA G40.21 260W is typically used for bridges, buildings, general structural fabrication, storage tanks, older infrastructure projects., while GB/T 700 Q275C is commonly used for hot rolled structural sheets, strips, sections and bars for welding, riveting and bolting engineering.
CSA G40.21 260W is defined under Canadian Standards Association (CSA), originating from Canada, while GB/T 700 Q275C is defined under Guobiao Standards (GB/T), originating from China.
As per chemical composition, CSA G40.21 260W vs GB/T 700 Q275C is a 97.1% match.
As per mechanical properties, the match is 36.1%.
Combined, this makes them a close alternative overall at 76.8%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
CSA G40.21 260W
GB/T 700 Q275C
Yield Strength
260 MPa min
>=275 MPa
Tensile Strength
410-590 MPa
410-540 MPa
Elongation
Not specified
>=22%
Condition
Not specified
Hot rolled, controlled rolled or normalized; yield up to 16 mm, elongation up to 40 mm (N/mm2 = MPa)
Typical Applications
CSA G40.21 260W
Bridges, buildings, general structural fabrication, storage tanks, older infrastructure projects.
GB/T 700 Q275C
Hot rolled structural sheets, strips, sections and bars for welding, riveting and bolting engineering
Can CSA G40.21 260W Be Substituted With GB/T 700 Q275C?
CSA G40.21 260W and GB/T 700 Q275C 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 CSA G40.21 260W and GB/T 700 Q275C?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can CSA G40.21 260W be substituted with GB/T 700 Q275C?
CSA G40.21 260W and GB/T 700 Q275C 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.