Stainless Steel
304 · 1.4301
Also known as A2 / V2A / X5CrNi18-10
The standard austenitic stainless steel — corrosion-resistant and weldable.
Stainless 304 (material 1.4301, X5CrNi18-10) is the most widely used austenitic stainless steel, offering good corrosion resistance, formability and weldability. Supplied as round, flat and bright bar, sheet and tube for a vast range of applications.
International equivalents.
The same steel by country and standard — near matches; mill certificate governs.
Chemical composition.
Indicative, % by weight per EN 10088-3. Mill certificate governs.
| Element | % |
|---|---|
| C | ≤ 0.07 |
| Si | ≤ 1.00 |
| Mn | ≤ 2.00 |
| Cr | 17.5 – 19.5 |
| Ni | 8.0 – 10.5 |
| P | ≤ 0.045 |
| S | ≤ 0.015 |
Mechanical properties.
Indicative values for a reference section and heat-treatment condition. Actual properties vary with dimension and treatment, and are confirmed on the mill certificate.
Available forms.
Size: Ø 3 – 250 mm · flats, plates & sheet to specification
Typical applications.
- Food & beverage
- Chemical & process
- Architecture
- General corrosion-resistant parts
FAQ.
What is 304?
Stainless 304 (material 1.4301, X5CrNi18-10) is the most widely used austenitic stainless steel, offering good corrosion resistance, formability and weldability. Supplied as round, flat and bright bar, sheet and tube for a vast range of applications.
Is 304 the same as A2?
Yes — 304 and A2, V2A, X5CrNi18-10 are matching designations for the same steel across different standards (EN, AISI/SAE, JIS, GB, former DIN). They are near equivalents and may differ slightly in chemistry, so the mill certificate governs the exact specification.
What are the international equivalents of 304?
304 corresponds to 1.4301 (X5CrNi18-10) (EN), 304 (AISI), SUS304 (JIS), A2 (fastener). Equivalents are nearest matches by country/standard; the mill certificate governs the exact specification.
In which forms is 304 available?
304 is supplied as Round bar, Flat bar, Bright / cold-drawn bar, Sheet, Tube, in Ø 3 – 250 mm (bar diameter; flats, plates and sheet are quoted to specification).
What is 304 used for?
Typical applications include Food & beverage, Chemical & process, Architecture, General corrosion-resistant parts.