Strong Match — 100% match
based on chemical composition and mechanical property overlap.
ASTM A959 440C (ASTM A959:2011) and ASTM A276/A276M S44004 (ASTM A276/A276M:2017) are both steel grades.
Both fall under the Stainless Steel category.
ASTM A959 440C is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while ASTM A276/A276M S44004 is commonly used for stainless steel bars and shapes (hot-finished or cold-finished).
ASTM A959 440C is defined under ASTM International, originating from United States, while ASTM A276/A276M S44004 is defined under ASTM International, originating from United States.
As per chemical composition, ASTM A959 440C vs ASTM A276/A276M S44004 is a 100% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a strong match overall at 100%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
ASTM A959 440C
ASTM A276/A276M S44004
Hardness
Not specified
<=269 HB
Condition
Not specified
Condition A (Annealed), hot-finished, all sizes (first row printed)
Typical Applications
ASTM A959 440C
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
ASTM A276/A276M S44004
Stainless steel bars and shapes (hot-finished or cold-finished)
Can ASTM A959 440C Be Substituted With ASTM A276/A276M S44004?
ASTM A959 440C and ASTM A276/A276M S44004 overlap closely enough on chemistry and mechanical properties that ASTM A276/A276M S44004 is often considered as a substitute for ASTM A959 440C 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 A959 440C and ASTM A276/A276M S44004?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A959 440C be substituted with ASTM A276/A276M S44004?
ASTM A959 440C and ASTM A276/A276M S44004 overlap closely enough on chemistry and mechanical properties that ASTM A276/A276M S44004 is often considered as a substitute for ASTM A959 440C in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.