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ASTM A959 304N vs KS D3566 STS304

Strong Match — 93.1% match based on chemical composition and mechanical property overlap.

ASTM A959 304N (ASTM A959:2011) and KS D3566 STS304 (KS D3566:2021) are both steel grades. Both fall under the Stainless Steel category. ASTM A959 304N is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while KS D3566 STS304 is commonly used for chemical equipment, food processing machinery, kitchen equipment, architectural applications, storage tanks.. ASTM A959 304N is defined under ASTM International, originating from United States, while KS D3566 STS304 is defined under Korean Industrial Standards (KS), originating from South Korea.

As per chemical composition, ASTM A959 304N vs KS D3566 STS304 is a 93.1% 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 93.1%.

Frequently Compared With ASTM A959 304N:
GB/T 3280 06Cr19Ni10 ASTM A959 .- GOST 5632 08X18H10 IS 1570 (Part 7) 12Cr13H EN 10088-1 1.4006 EN 10088-1 1.4301 EN 10088-1 1.4401 EN 10088-1 1.4845 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoVH IS 1570 (Part 7) 12Cr12Ni2Mo GOST 5632 06Kh23N28
Match Breakdown
CHEMISTRY MATCH
93.1%
MECHANICAL MATCH
No shared data
OVERALL
93.1%
Specifications
Property ASTM A959 304N KS D3566 STS304
Standard ASTM A959:2011 KS D3566:2021
Category Stainless Steel Stainless Steel
C (%) <=0.08 max 0.08
Cr (%) 18.0-20.0 18-20
Mn (%) <=2.00 max 2
N (%) 0.10-0.16 Not specified
Ni (%) 8.0-11.0 8-10.5
P (%) <=0.045 max 0.045
S (%) <=0.030 max 0.03
Si (%) <=1.00 max 1
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 304N KS D3566 STS304
Tensile Strength Not specified 520 MPa min
Yield Strength (0.2% proof) Not specified 205 MPa min
Elongation Not specified 40% min
Hardness Not specified HB 187 max
Typical Applications
ASTM A959 304N
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
KS D3566 STS304
Chemical equipment, food processing machinery, kitchen equipment, architectural applications, storage tanks.
Key Differences
Can ASTM A959 304N Be Substituted With KS D3566 STS304?
ASTM A959 304N and KS D3566 STS304 overlap closely enough on chemistry and mechanical properties that KS D3566 STS304 is often considered as a substitute for ASTM A959 304N in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
Forms & Sizes Available on M-EX
ASTM A959 304N
No active listings currently.
KS D3566 STS304
Sheet → (2 listings)
Thickness: 6–6 mm (0.24–0.24 in)
Width: 1250–1250 mm (49.21–49.21 in)
Length: 2800–3200 mm (110.24–125.98 in)
On M-EX Right Now
ASTM A959 304N
0 active listings and RFQs →
KS D3566 STS304
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A959 304N and KS D3566 STS304?
ASTM A959 304N specifies N which is not specified for KS D3566 STS304.
Can ASTM A959 304N be substituted with KS D3566 STS304?
ASTM A959 304N and KS D3566 STS304 overlap closely enough on chemistry and mechanical properties that KS D3566 STS304 is often considered as a substitute for ASTM A959 304N in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.