Strong Match — 97.4% match
based on chemical composition and mechanical property overlap.
ASTM A276/A276M N08810 (ASTM A276/A276M:2017) and ASTM A240/A240M N08811 (ASTM A240/A240M:2025) are both steel grades.
Both fall under the Stainless Steel category.
ASTM A276/A276M N08810 is typically used for stainless steel bars and shapes (hot-finished or cold-finished), while ASTM A240/A240M N08811 is commonly used for pressure vessels and general applications (plate, sheet and strip).
ASTM A276/A276M N08810 is defined under ASTM International, originating from United States, while ASTM A240/A240M N08811 is defined under ASTM International, originating from United States.
As per chemical composition, ASTM A276/A276M N08810 vs ASTM A240/A240M N08811 is a 96.2% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a strong match overall at 97.4%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
ASTM A276/A276M N08810
ASTM A240/A240M N08811
Tensile Strength
>=450 MPa
>=450 MPa
Yield Strength
>=170 MPa
>=170 MPa
Elongation
>=30%
>=30%
Hardness
<=192 HB
Not specified
Condition
Condition A (Annealed), hot-finished or cold-finished, all sizes (first row printed)
Plate, sheet and strip; yield by 0.2 percent offset
Typical Applications
ASTM A276/A276M N08810
Stainless steel bars and shapes (hot-finished or cold-finished)
ASTM A240/A240M N08811
Pressure vessels and general applications (plate, sheet and strip)
Can ASTM A276/A276M N08810 Be Substituted With ASTM A240/A240M N08811?
ASTM A276/A276M N08810 and ASTM A240/A240M N08811 overlap closely enough on chemistry and mechanical properties that ASTM A240/A240M N08811 is often considered as a substitute for ASTM A276/A276M N08810 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 A276/A276M N08810 and ASTM A240/A240M N08811?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A276/A276M N08810 be substituted with ASTM A240/A240M N08811?
ASTM A276/A276M N08810 and ASTM A240/A240M N08811 overlap closely enough on chemistry and mechanical properties that ASTM A240/A240M N08811 is often considered as a substitute for ASTM A276/A276M N08810 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.