Close Alternative — 75.7% match
based on chemical composition and mechanical property overlap.
ASTM A572/A572M Grade 65 (ASTM A572/A572M:2018) and EN 10346 S450GD (EN 10346:2015) are both steel grades.
Both fall under the Structural Steel category.
ASTM A572/A572M Grade 65 is typically used for riveted or bolted bridge construction, or riveted, bolted or welded construction in other applications, while EN 10346 S450GD is commonly used for higher-strength continuous hot-dip galvanized structural steel strip/sheet; roll-formed and cold-formed high-strength structural sections, purlins, roofing and cladding requiring corrosion protection.
ASTM A572/A572M Grade 65 is defined under ASTM International, originating from United States, while EN 10346 S450GD is defined under European Standard (EN), originating from Europe.
As per chemical composition, ASTM A572/A572M Grade 65 vs EN 10346 S450GD is a 96.9% match.
As per mechanical properties, the match is 33.3%.
Combined, this makes them a close alternative overall at 75.7%.
Frequently Compared With ASTM A572/A572M Grade 65:
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 65
EN 10346 S450GD
Tensile Strength
>=550 MPa
480 MPa min
Yield Strength
>=450 MPa
450 MPa min
Elongation
>=15%
12% 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 65
Riveted or bolted bridge construction, or riveted, bolted or welded construction in other applications
EN 10346 S450GD
Higher-strength continuous hot-dip galvanized structural steel strip/sheet; roll-formed and cold-formed high-strength structural sections, purlins, roofing and cladding requiring corrosion protection
Can ASTM A572/A572M Grade 65 Be Substituted With EN 10346 S450GD?
ASTM A572/A572M Grade 65 and EN 10346 S450GD 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 65 and EN 10346 S450GD?
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 65 be substituted with EN 10346 S450GD?
ASTM A572/A572M Grade 65 and EN 10346 S450GD 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.