Close Alternative — 73.5% match
based on chemical composition and mechanical property overlap.
ASTM A572/A572M Grade 55 (ASTM A572/A572M:2018) and EN 10025-3 S420JR (EN 10025-3:2019) 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 EN 10025-3 S420JR is commonly used for used in bridges, heavy machinery frames, structural beams, offshore structures, and crane components..
ASTM A572/A572M Grade 55 is defined under ASTM International, originating from United States, while EN 10025-3 S420JR is defined under European Standard (EN), originating from Europe.
As per chemical composition, ASTM A572/A572M Grade 55 vs EN 10025-3 S420JR is a 93.6% match.
As per mechanical properties, the match is 33.3%.
Combined, this makes them a close alternative overall at 73.5%.
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
EN 10025-3 S420JR
Tensile Strength
>=485 MPa
520-680 MPa
Yield Strength
>=380 MPa
420 MPa min
Elongation
>=17%
17% 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
Hardness
Not specified
170-220 HB
Typical Applications
ASTM A572/A572M Grade 55
Riveted, bolted or welded structures
EN 10025-3 S420JR
Used in bridges, heavy machinery frames, structural beams, offshore structures, and crane components.
Key Differences
EN 10025-3 S420JR specifies N which is not specified for ASTM A572/A572M Grade 55.
Can ASTM A572/A572M Grade 55 Be Substituted With EN 10025-3 S420JR?
ASTM A572/A572M Grade 55 and EN 10025-3 S420JR 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 55 and EN 10025-3 S420JR?
EN 10025-3 S420JR specifies N which is not specified for ASTM A572/A572M Grade 55.
Can ASTM A572/A572M Grade 55 be substituted with EN 10025-3 S420JR?
ASTM A572/A572M Grade 55 and EN 10025-3 S420JR 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.