Austenitic chromium-nickel stainless steel – "Classic material for corrosion-resistant springs" (1.4310)
Code
X10CrNi18-8
US standard (AISI)
301
Composition
Alloying components [%]
C: 0.05 - 0.15
Cr: 16.00 - 19.00
Mn: 0 - 2.00
Mo: 0 - 0.80
N: 0 - 0.10
Ni: 6.00 - 9.50
P: 0 - 0.045
S: 0 - 0.015
Si: 0 - 2.00
Remainder: Fe
Stainless steel grade
A2
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]
≥195
Tensile strength
Rm [N/mm²]
500 - 750
Corrosion resistance
- Good
- Solution annealed for resistance to intergranular corrosion
- Optimum resistance when polished
Machinability
Medium
Weldability
Very good
Other properties
- Metastable austenitic structure that work-hardens very well during cold working, giving it the necessary material properties for manufacturing spring elements
- Can be mechanically polished to a brilliant sheen
- Suitability for electropolishing: very good
- In the work-hardened state, it is stable up to 300°C provided that there is no change in structure
Main uses
- Main area of application: corrosion-resistant springs (up to 300°C)
- General applications involving medium levels of corrosive stress:
