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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
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