Stainless 303 Bright Bar Manufacturer & Supplier
The free machining austenitic bar. Sulphur is added to 304 so it turns at near free-cutting-steel speeds, at the cost of some corrosion resistance and all of its weldability.
UNS: UNS S30300 / 1.4305 | Category: Stainless Bright Bar
Size Range
Outer Diameter: Diameter 5-100 mm · Round, square, hexagon & flat sections
Chemical Composition (%)
| C | Cr | Ni | S | Mn |
|---|---|---|---|---|
| 0.15 max | 17.0-19.0 | 8.0-10.0 | 0.15 min | 2.0 max |
Mechanical Properties
- Tensile Strength
- 620-760 MPa (cold drawn)
- Yield Strength
- 415 MPa min
- Elongation
- 20%
- Hardness
- 228-262 HB
Applicable Standards
- EN 10088-3 (corrosion resisting bars)
- EN 10278 (dimensions & tolerances)
- ASTM A276 / A479
- ASTM A582 (free machining)
- EN 10204 3.1 certification
Applications
- Turned stainless fittings
- Valve spindles
- Shafts in mild corrosion
- Instrument parts
- Food machinery components
Industries Served
- Food & Beverage
- Pumps & Valves
- General Engineering
- Pharmaceutical
- Textile Machinery
- Hydraulics & Pneumatics
Equivalent Grades
- Werkstoff / DIN
- 1.4305 / X8CrNiS18-9
- JIS
- SUS303