KS D3566 STS304 vs ASTM A959 SS304

Strong Match — 94.2% match based on chemical composition and mechanical property overlap.

KS D3566 STS304 (KS D3566:2021) and ASTM A959 SS304 (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 SS304 is commonly used for food processing, chemical equipment, kitchen equipment. KS D3566 STS304 is defined under Korean Industrial Standards (KS), originating from South Korea, while ASTM A959 SS304 is defined under ASTM International, originating from United States.

As per chemical composition, KS D3566 STS304 vs ASTM A959 SS304 is a 94.2% 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 94.2%.

Frequently Compared With KS D3566 STS304:
GB/T 3280 06Cr19Ni10 EN 10088-1 1.4301 GOST 5632 06Kh23N28 EN 10088-1 1.4006 EN 10088-1 1.4401 GOST 5632 12Kh13 GOST 5632 08X18H10 EN 10088-1 1.4845 ASTM A959 .- IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12Ni2Mo IS 1570 (Part 7) 11Cr17Ni13W3TiH
Match Breakdown
CHEMISTRY MATCH
94.2%
MECHANICAL MATCH
No shared data
OVERALL
94.2%
Specifications
Property KS D3566 STS304 ASTM A959 SS304
Standard KS D3566:2021 ASTM A959:2011
Category Stainless Steel Stainless Steel
C (%) max 0.08 <=0.07
Mn (%) max 2 <=2.00
Si (%) max 1 <=1.00
P (%) max 0.045 <=0.045
S (%) max 0.03 <=0.030
Cr (%) 18-20 17.5-19.5
Ni (%) 8-10.5 8.0-11.0
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property KS D3566 STS304 ASTM A959 SS304
Tensile Strength 520 MPa min Not specified
Yield Strength (0.2% proof) 205 MPa min Not specified
Elongation 40% min Not specified
Hardness HB 187 max Not specified
Typical Applications
KS D3566 STS304
Chemical equipment, food processing machinery, kitchen equipment, architectural applications, storage tanks.
ASTM A959 SS304
Food processing, chemical equipment, kitchen equipment
Can KS D3566 STS304 Be Substituted With ASTM A959 SS304?
KS D3566 STS304 and ASTM A959 SS304 overlap closely enough on chemistry and mechanical properties that ASTM A959 SS304 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.
Forms & Sizes Available on M-EX
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)
ASTM A959 SS304
Sheet → (22 listings)
Thickness: 2–6 mm (0.08–0.24 in)
Width: 1250–1250 mm (49.21–49.21 in)
Length: 2500–4100 mm (98.43–161.42 in)
Round Bar → (6 listings)
Diameter: 50–65 mm (1.97–2.56 in)
Length: 2500–6900 mm (98.43–271.65 in)
Plate → (6 listings)
Thickness: 8–12 mm (0.31–0.47 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2500–3800 mm (98.43–149.61 in)
On M-EX Right Now
KS D3566 STS304
2 active listings and RFQs →
ASTM A959 SS304
34 active listings and RFQs →
Frequently Asked Questions
What is the difference between KS D3566 STS304 and ASTM A959 SS304?
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 SS304?
KS D3566 STS304 and ASTM A959 SS304 overlap closely enough on chemistry and mechanical properties that ASTM A959 SS304 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.