304/304L

Wst. 14301/14306

UNS S30400 / S30403

Stock program: Available on request, some sizes on stock

Specification: ASTM A 269/A 213 / EN 10216-5 / NACE MR0175/PED 97/23 EC

Maximum service temperature: 430°C / 800°F

304/304L seamless austenitic stainless steel is the most familiar and most frequently used alloy in the stainless steel family. This alloy may be considered for a wide variety of applications and exhibits, good corrosion resistance, ease of fabrication, excellent formability and high strength with low weight. The 304L is the lower carbon variant for better weldebility. This alloy has very good impact strength on room temperature and on cryogenic temperatures down to min 200°C (-325°F) and up to about 550°C (1020°F).

The 304L is used for a wide range of industrial applications; for example heat exchanges, pipelines, cooling & heating equipment, condensers in the chemical, petrochemical, nuclear power, pulp & paper, fertilizer, food, leverage and pharmaceutical industries.

Characteristics:

  •     Corrosion/oxidation resistance thanks to the chromium content
  •     Excellent formability
  •     High strength with low weight
  •     Good impact strength on cryogenic temperatures down to min. 200°C/-325°F
  •     Ease of cleaning and beauty of appearance

Market applications:

  •    Petrochemical
  •    Pharmaceutical
  •    (Nuclear) power plants
  •    Food and leverage
  •    Pulp and paper

Technical details

Technical composition (%) Fe Cr Ni Mn Si P C S
304 min Bal. 18.0 8.0
max 20.0 11.0 2.00 0.75 0.040 0.080 0.030
304L min Bal. 18.0 8.0
max 20.0 13.0 2.00 0.75 0.040 0.035 0.030
Mechanical properties 304 304L
Tensile strenght (mpa, min) nl 500 -700 460 – 680
Yield strength (0.2% offset mpa, min) 295 180
Elongation (%, min) 40 40
Density / weight (g / cm3 / kg) 8.0 8.0