Strong Match — 95.1% match
based on chemical composition and mechanical property overlap.
ASTM A959 442 (ASTM A959:2011) and ASTM A959 443 (ASTM A959:2011) are both steel grades.
Both fall under the Stainless Steel category.
ASTM A959 442 is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while ASTM A959 443 is commonly used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1).
ASTM A959 442 is defined under ASTM International, originating from United States, while ASTM A959 443 is defined under ASTM International, originating from United States.
As per chemical composition, ASTM A959 442 vs ASTM A959 443 is a 95.1% 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 95.1%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Typical Applications
ASTM A959 442
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
ASTM A959 443
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Key Differences
ASTM A959 443 specifies Cu which is not specified for ASTM A959 442.
Can ASTM A959 442 Be Substituted With ASTM A959 443?
ASTM A959 442 and ASTM A959 443 overlap closely enough on chemistry and mechanical properties that ASTM A959 443 is often considered as a substitute for ASTM A959 442 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 442 and ASTM A959 443?
ASTM A959 443 specifies Cu which is not specified for ASTM A959 442.
Can ASTM A959 442 be substituted with ASTM A959 443?
ASTM A959 442 and ASTM A959 443 overlap closely enough on chemistry and mechanical properties that ASTM A959 443 is often considered as a substitute for ASTM A959 442 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.