Related Material — 65.5% match
based on chemical composition and mechanical property overlap.
ASTM A572/A572M Grade 55 (ASTM A572/A572M:2018) and CSA G40.21 260W (CSA G40.21-13 (R2023)) are both steel grades.
Both fall under the Structural Steel category.
ASTM A572/A572M Grade 55 is typically used for riveted, bolted or welded structures, while CSA G40.21 260W is commonly used for bridges, buildings, general structural fabrication, storage tanks, older infrastructure projects..
ASTM A572/A572M Grade 55 is defined under ASTM International, originating from United States, while CSA G40.21 260W is defined under Canadian Standards Association (CSA), originating from Canada.
As per chemical composition, ASTM A572/A572M Grade 55 vs CSA G40.21 260W is a 98.3% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a related material overall at 65.5%.
Frequently Compared With ASTM A572/A572M Grade 55:
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
ASTM A572/A572M Grade 55
CSA G40.21 260W
Tensile Strength
>=485 MPa
410-590 MPa
Yield Strength
>=380 MPa
260 MPa min
Elongation
>=17%
Not specified
Condition
Tension test per Table 4; one set of minimum values for all product thicknesses; Elongation is in 200 mm gauge length, 50 mm values in the tensile block
Not specified
Typical Applications
ASTM A572/A572M Grade 55
Riveted, bolted or welded structures
CSA G40.21 260W
Bridges, buildings, general structural fabrication, storage tanks, older infrastructure projects.
Can ASTM A572/A572M Grade 55 Be Substituted With CSA G40.21 260W?
ASTM A572/A572M Grade 55 and CSA G40.21 260W 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.
What is the difference between ASTM A572/A572M Grade 55 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 ASTM A572/A572M Grade 55 be substituted with CSA G40.21 260W?
ASTM A572/A572M Grade 55 and CSA G40.21 260W 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.