304S is an austenitic stainless steel with excellent corrosion resistance and good mechanical properties. Compared with standard 304, 304S has lower carbon content, reducing post-weld sensitization and improving intergranular corrosion resistance. Widely used in chemical equipment, food processing machinery, architectural decoration, and household items.

Standard

GB/T 20878 / GB/T 4237

International Standards: ASTM A240 / EN 10088-2

Type: Austenitic Stainless Steel

Chemical Composition (%)

Element	Content
C	≤ 0.03
Si	≤ 1.00
Mn	≤ 2.00
P	≤ 0.045
S	≤ 0.03
Cr	18.0 – 20.0
Ni	8.0 – 10.5
N	≤ 0.10
Fe	Balance

Mechanical Properties

Item	304S
Yield Strength	≥ 205 MPa
Tensile Strength	520 – 720 MPa
Elongation	≥ 40%
Hardness	HRB 79 or HRC 72

Available Specifications

Thickness: 0.3 mm – 6 mm (customized)

Width: 1,000 mm – 2,000 mm

Length: Coil or cut-to-length plates

Delivery Condition: Hot Rolled / Cold Rolled / Annealed

Surface Finish: BA bright, No.1 / No.4 brushed, mirror, etc.

Applications

Chemical and food processing equipment

Kitchenware and household utensils

Architectural decoration and curtain walls

Medical equipment and laboratory instruments

Shipbuilding, machinery, and automotive parts

Product Advantages

Excellent corrosion and oxidation resistance

Good weldability and formability

Low-carbon design reduces welding sensitization

Multiple surface finishes for industrial and decorative needs

Compliant with international stainless steel standards

Quality & Delivery

Mill Test Certificate EN10204 3.1 / 3.2 available

Third-party inspection supported (SGS / BV / TUV, etc.)

Custom cutting, slitting, and surface treatment services available

Qualification

Strength

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