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:

- Automotive industry

- Chemical industry

- Tools

- Food industry