ASTM A387/A387M Grade 2 vs ASTM A387/A387M Grade 12
Strong Match — 90% match
based on chemical composition and mechanical property overlap.
ASTM A387/A387M Grade 2 (ASTM A387/A387M:2011) and ASTM A387/A387M Grade 12 (ASTM A387/A387M:2011) are both steel grades.
Both fall under the Alloy Steel category.
ASTM A387/A387M Grade 2 is typically used for welded boilers and pressure vessels for elevated temperature service, while ASTM A387/A387M Grade 12 is commonly used for welded boilers and pressure vessels for elevated temperature service.
ASTM A387/A387M Grade 2 is defined under ASTM International, originating from United States, while ASTM A387/A387M Grade 12 is defined under ASTM International, originating from United States.
As per chemical composition, ASTM A387/A387M Grade 2 vs ASTM A387/A387M Grade 12 is a 85% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a strong match overall at 90%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
ASTM A387/A387M Grade 2
ASTM A387/A387M Grade 12
Tensile Strength
380-550 MPa
380-550 MPa
Yield Strength
>=230 MPa
>=230 MPa
Elongation
>=22%
>=22%
Condition
Class 1 plates, no thickness ranges printed; elongation in 50 mm gauge length
Class 1 plates, no thickness ranges printed; elongation in 50 mm gauge length
Typical Applications
ASTM A387/A387M Grade 2
Welded boilers and pressure vessels for elevated temperature service
ASTM A387/A387M Grade 12
Welded boilers and pressure vessels for elevated temperature service
Can ASTM A387/A387M Grade 2 Be Substituted With ASTM A387/A387M Grade 12?
ASTM A387/A387M Grade 2 and ASTM A387/A387M Grade 12 overlap closely enough on chemistry and mechanical properties that ASTM A387/A387M Grade 12 is often considered as a substitute for ASTM A387/A387M Grade 2 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
What is the difference between ASTM A387/A387M Grade 2 and ASTM A387/A387M Grade 12?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A387/A387M Grade 2 be substituted with ASTM A387/A387M Grade 12?
ASTM A387/A387M Grade 2 and ASTM A387/A387M Grade 12 overlap closely enough on chemistry and mechanical properties that ASTM A387/A387M Grade 12 is often considered as a substitute for ASTM A387/A387M Grade 2 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.