ASTM A572/A572M Grade 50 vs ASTM A572/A572M Grade 42
Related Material — 66.2% match
based on chemical composition and mechanical property overlap.
ASTM A572/A572M Grade 50 (ASTM A572/A572M:2018) and ASTM A572/A572M Grade 42 (ASTM A572/A572M:2021) 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 ASTM A572/A572M Grade 42 is commonly used for riveted, bolted or welded structures.
ASTM A572/A572M Grade 50 is defined under ASTM International, originating from United States, while ASTM A572/A572M Grade 42 is defined under ASTM International, originating from United States.
As per chemical composition, ASTM A572/A572M Grade 50 vs ASTM A572/A572M Grade 42 is a 99.3% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a related material overall at 66.2%.
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
ASTM A572/A572M Grade 42
Tensile Strength
>=450 MPa
>=415 MPa
Yield Strength
>=345 MPa
>=290 MPa
Elongation
>=18%
>=20%
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
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
Typical Applications
ASTM A572/A572M Grade 50
Riveted, bolted or welded structures
ASTM A572/A572M Grade 42
Riveted, bolted or welded structures
Can ASTM A572/A572M Grade 50 Be Substituted With ASTM A572/A572M Grade 42?
ASTM A572/A572M Grade 50 and ASTM A572/A572M Grade 42 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 ASTM A572/A572M Grade 42?
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 ASTM A572/A572M Grade 42?
ASTM A572/A572M Grade 50 and ASTM A572/A572M Grade 42 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.