Material: 1.4828

Information about the selected material

Assignment to new and old standards:

Standard Description
EN 10088-3 1.4828 X15CrNiSi 20-12
UNS -
AISI 309
BS 309 S24
JIS SUH 309
AFNOR Z17CNS20-12
DIN 17440 1.4828
SIS -

General properties:

Property Rating
corrosion resistance low
Mechanical properties middle
Malleability good
Weldability good
Machinability good

Mechanical properties:

Property Standard Value
Yield strength (N/mm²) Rp0,2 = 230
Tensile strength (N/mm²) Rm 550-750
Impact strength (J) at 25°C ISO-V -
Hardness HB = 223

Physical Properties:

Property Value
Density (kg/dm³) =7,9
Electrical resistance at 20°C (O mm²/m) 0,85
Magnetisability non-existent
Thermal conductivity at 20°C (W/m K) 15
Specific conductivity at 20°C (J/kg K)) 500

Special features

  • up to 1000 ° C scale oxide resistant in air
  • Scope for usage 800-1000 °C

Main usage

  • Apparat production for high temperature applications
  • Automotive industry
  • Chain industry
  • Mechanical engineering
  • Kiln engineering
  • Sieves and grates

Corrosion resistance

1.4828 is only slightly resistant to both oxidizing and reducing sulphurous gases. In this media the use of 1.4828 is limited to temperatures below 650°C. The corrosion resistance against carbon (up to 900°C) and to nitrogenous, low-oxygen gases can be classified as medium.

Welding

  • welded with all common welding processes
  • An after-treatment is not necessary