Close Alternative — 75% match
based on chemical composition and mechanical property overlap.
ASTM A572/A572M Grade 42 (ASTM A572/A572M:2018) and AS/NZS 3679.1 350 (AS/NZS 3679.1:2016) are both steel grades.
Both fall under the Structural Steel category.
ASTM A572/A572M Grade 42 is typically used for riveted, bolted or welded structures, while AS/NZS 3679.1 350 is commonly used for hot-rolled structural bars and sections for primary structural beams, columns, and framing.
ASTM A572/A572M Grade 42 is defined under ASTM International, originating from United States, while AS/NZS 3679.1 350 is defined under Australian/New Zealand Standard (AS/NZS), originating from Australia/New Zealand.
As per chemical composition, ASTM A572/A572M Grade 42 vs AS/NZS 3679.1 350 is a 95.9% match.
As per mechanical properties, the match is 33.3%.
Combined, this makes them a close alternative overall at 75%.
Frequently Compared With ASTM A572/A572M Grade 42:
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 42
AS/NZS 3679.1 350
Tensile Strength
>=415 MPa
480-640 MPa
Yield Strength
>=290 MPa
350 MPa min
Elongation
>=20%
20% min
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 42
Riveted, bolted or welded structures
AS/NZS 3679.1 350
Hot-rolled structural bars and sections for primary structural beams, columns, and framing
Can ASTM A572/A572M Grade 42 Be Substituted With AS/NZS 3679.1 350?
ASTM A572/A572M Grade 42 and AS/NZS 3679.1 350 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 ASTM A572/A572M Grade 42 and AS/NZS 3679.1 350?
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 42 be substituted with AS/NZS 3679.1 350?
ASTM A572/A572M Grade 42 and AS/NZS 3679.1 350 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.