Related Material — 64.8% match
based on chemical composition and mechanical property overlap.
ASTM A572/A572M Grade 50 (ASTM A572/A572M:2018) and CSA G40.21 400W (CSA G40.21-13 (R2023)) are both steel grades.
Both fall under the Structural Steel category.
ASTM A572/A572M Grade 50 is typically used for riveted, bolted or welded structures, while CSA G40.21 400W is commonly used for heavy structural fabrication, bridges, offshore platforms, cranes, pressure vessels, mining equipment..
ASTM A572/A572M Grade 50 is defined under ASTM International, originating from United States, while CSA G40.21 400W is defined under Canadian Standards Association (CSA), originating from Canada.
As per chemical composition, ASTM A572/A572M Grade 50 vs CSA G40.21 400W is a 97.1% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a related material overall at 64.8%.
Frequently Compared With ASTM A572/A572M Grade 50:
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 50
CSA G40.21 400W
Tensile Strength
>=450 MPa
520-690 MPa
Yield Strength
>=345 MPa
400 MPa min
Elongation
>=18%
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
Can ASTM A572/A572M Grade 50 Be Substituted With CSA G40.21 400W?
ASTM A572/A572M Grade 50 and CSA G40.21 400W 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 50 and CSA G40.21 400W?
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 50 be substituted with CSA G40.21 400W?
ASTM A572/A572M Grade 50 and CSA G40.21 400W 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.