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Stainless Steel AISI 302

AISI 302 Stainless Steel Data Sheet

Data sheet
DIN EN ISO 6931-1
Grade AISI 302 / 1.4310


Grade AISI 302 / 1.4310 is an austenitic stainless steel with a high content of chromium and nickel. A typical application for this stainless steel grade is the industrial production of springs. The material AISI 302 / 1.4310 is suitable for cold forming and owns good polishing qualities.
Please note that the magnetizability changes due to cold forming.

Specification of AISI 302

EN-grade 1.4310
EN-short name X10CrNi18-8
EN-standard ISO 6931-1
Microstructure austinite

Comparable standards and designations

AFNOR Z11CN17-08 / Z12CN18-09 *

AISI 301 / 302 *

ASTM 301 *

B.S. 301S21 *

JIS SUS301 *

SIS 2331 *

SS 2331 *

UNE F.3517 *

UNS 30200 *

(* in accordance with)

Chemical composition of stainless steel 1.4310

0,05 – 0,15
≤ 2,00
≤ 2,00
≤ 0,045
≤ 0,015
≤ 0,10
16,0 – 19,0
≤ 0,80
6,0 – 9,5

Mass fraction in % according to DIN EN ISO 6931-1

Physical properties

Magnetizability: low
Density (kg/dm³): 7,9
Thermal conductivity (up to 20°C): 15

Electronic resistance at room temperature (in Ω mm²/m): 0,73

Possible areas of application

automobile industry
chemical industry
electrical components
production of springs
food industry
mechanical engineering
and more

Heat treatment and hot forming

Solution heat treatment (cooling by air or water): 1000-1100 °C

Hot forming (cooling by air): 1200-900 °C


Since the stainless steel material 1.4310 / AISI 302 is a stainless spring steel wire, this stainless steel material cannot be welded or only with great effort. The very poor welding properties of the material 1.4310 / AISI 302 are primarily due to the high carbon content. 
We advise you to use our CEV calculator to assess the weldability.

Please note

The information given in this data sheet has been compiled to the best of our knowledge and is based on the current version of the relevant standard. It is considered for reference only and we assume no liability for any errors.

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