Strong Match — 93.6% match
based on chemical composition and mechanical property overlap.
KS D3566 STS304 (KS D3566:2021) and ASTM A959 304H (ASTM A959:2011) are both steel grades.
Both fall under the Stainless Steel category.
KS D3566 STS304 is typically used for chemical equipment, food processing machinery, kitchen equipment, architectural applications, storage tanks., while ASTM A959 304H is commonly used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1).
KS D3566 STS304 is defined under Korean Industrial Standards (KS), originating from South Korea, while ASTM A959 304H is defined under ASTM International, originating from United States.
As per chemical composition, KS D3566 STS304 vs ASTM A959 304H is a 93.6% 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 93.6%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Can KS D3566 STS304 Be Substituted With ASTM A959 304H?
KS D3566 STS304 and ASTM A959 304H overlap closely enough on chemistry and mechanical properties that ASTM A959 304H is often considered as a substitute for KS D3566 STS304 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 KS D3566 STS304 and ASTM A959 304H?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can KS D3566 STS304 be substituted with ASTM A959 304H?
KS D3566 STS304 and ASTM A959 304H overlap closely enough on chemistry and mechanical properties that ASTM A959 304H is often considered as a substitute for KS D3566 STS304 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.