AISI 404

AISI 404

Stainless steel 404 has excellent corrosion resistance owing to the presence of copper and chromium in its composition. Therefore, it is increasingly replacing 304 steel in many applications. Stainless steel 404 allows for significant cost savings due to the ease of fabrication. It is magnetic, and has low thermal expansion, so there is less distortion of alloys during fabrication.

Chemical Composition


Element Content(%)
Iron, Fe Balance
Chromium, Cr 11-12.5
Nickel, Ni 1.25-2
Manganese, Mn 1
Silicon, Si 0.5
Carbon, C 0.05
Phosphorous, P 0.03
Sulfur, S 0.03

Mechanical Properties


Properties Metric Imperial
Tensile strength 1120 MPa 162442 psi
Yield strength 910 MPa 131984 psi
Elastic modulus 190-210 GPa 27557 – 30458 ksi
Poisson's ratio 0.27-0.30 0.27-0.30
Elongation at break 15% 15%
Reduction of area 50% 50%
Hardness 35 35

Sheets / Plates

Production Route Hot Rolled, Cold Rolled
Material Standard AISI, ASTM, ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, IS & Custom Chemistry
Size Width from 100mm to 3000mm ; Length from 500mm to 12000mm
Thickness 0.1mm to 400mm
Delivery Condition As Rolled, Annealed, Quenched and Tempered, Normalized
Surface Finish Plain, Brushed, Cladded

AISI 404 Applications

  1. Structures in Buildings, bridges, railway stations
  2. Fabrication of pipeline components & Industrial equipment
  3. Construction of automotive bodies, warehouses, shipping containers
  4. Commercial appliances, etc.