1.4305 stainlees steel
Austenitic chromium-nickel stainless steel with added sulphur –
"Free-cutting stainless steel" (1.4305)
Austenitic chromium-nickel stainless steel with added sulphur –
Code | X10CrNiS18-9 |
US standard (AISI) | 303 |
Composition Alloying components [%] | C: 0 - 0.10 Cr: 17.00 - 19.00 Cu: 0 - 1.0 N: 0 - 0.10 Ni: 8.00 - 10.00 Mn: 0 - 2.00 P: 0 - 0.045 S: 0.150 - 0.350 Si: 0 - 1.00 Remainder: Fe |
Stainless steel grade | A1 |
Density [g/cm³] | 7.9 |
Nickel migration [µg/(cm² x week)] in artificial perspiration (pH 4.5) | <0.5 |
Yield point Rp0.2 [N/mm²] | ≥190 |
Tensile strength Rm [N/mm²] | 500 - 700 |
Corrosion resistance | - Medium - Lower resistance than 1.4301 due to the addition of sulphur - Not resistant to intergranular corrosion |
Machinability | Very good |
Weldability | Poor (Friction welding possible) |
Other properties | - Austenitic non-magnetic structure with sulphur added for good machinability - Moderately suitable for mechanical polishing - Suitability for electropolishing: medium - For use at temperatures up to 500°C - Not suitable for prolonged skin contact due to the high nickel migration rate |
Main uses | Predominantly used for turned parts that are subject to medium levels of corrosive stress in the following sectors: - Automotive industry - Fittings - Food industry - Kitchen equipment and decorative parts - Machine and plant construction |