ASTM A537/A537M Class 2 vs ASTM A537/A537M Class 1
Close Alternative — 81.6% match
based on chemical composition and mechanical property overlap.
ASTM A537/A537M Class 2 (ASTM A537/A537M:2013) and ASTM A537/A537M Class 1 (ASTM A537/A537M:2013) are both steel grades.
Both fall under the Carbon Steel category.
ASTM A537/A537M Class 2 is typically used for fusion welded pressure vessels and structures, while ASTM A537/A537M Class 1 is commonly used for fusion welded pressure vessels and structures.
ASTM A537/A537M Class 2 is defined under ASTM International, originating from United States, while ASTM A537/A537M Class 1 is defined under ASTM International, originating from United States.
As per chemical composition, ASTM A537/A537M Class 2 vs ASTM A537/A537M Class 1 is a 100% match.
As per mechanical properties, the match is 44.7%.
Combined, this makes them a close alternative overall at 81.6%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
ASTM A537/A537M Class 2
ASTM A537/A537M Class 1
Tensile Strength
550-690 MPa
485-620 MPa
Yield Strength
>=415 MPa
>=345 MPa
Elongation
>=22%
>=22%
Condition
Quenched and tempered, thickness 65 mm and under; elongation in 50 mm gauge length
Normalized, thickness 65 mm and under; elongation in 50 mm gauge length
Typical Applications
ASTM A537/A537M Class 2
Fusion welded pressure vessels and structures
ASTM A537/A537M Class 1
Fusion welded pressure vessels and structures
Can ASTM A537/A537M Class 2 Be Substituted With ASTM A537/A537M Class 1?
ASTM A537/A537M Class 2 and ASTM A537/A537M Class 1 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 A537/A537M Class 2 and ASTM A537/A537M Class 1?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A537/A537M Class 2 be substituted with ASTM A537/A537M Class 1?
ASTM A537/A537M Class 2 and ASTM A537/A537M Class 1 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.