Related Material — 61.3% match
based on chemical composition and mechanical property overlap.
ASTM A572/A572M Grade 55 (ASTM A572/A572M:2018) and CSA G40.21 300W (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 300W is commonly used for structural fabrication,bridges,buildings,machinery frames,general construction,welded structures.
ASTM A572/A572M Grade 55 is defined under ASTM International, originating from United States, while CSA G40.21 300W is defined under Canadian Standards Association (CSA), originating from Canada.
As per chemical composition, ASTM A572/A572M Grade 55 vs CSA G40.21 300W is a 91.9% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a related material overall at 61.3%.
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 300W
Tensile Strength
>=485 MPa
450-620 MPa
Yield Strength
>=380 MPa
300 MPa min
Elongation
>=17%
20-23 %
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
ASTM A572/A572M Grade 55 specifies Si which is not specified for CSA G40.21 300W.
Can ASTM A572/A572M Grade 55 Be Substituted With CSA G40.21 300W?
ASTM A572/A572M Grade 55 and CSA G40.21 300W 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 300W?
ASTM A572/A572M Grade 55 specifies Si which is not specified for CSA G40.21 300W.
Can ASTM A572/A572M Grade 55 be substituted with CSA G40.21 300W?
ASTM A572/A572M Grade 55 and CSA G40.21 300W 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.