AISI 403

AISI 403

Stainless steels are high-alloy steels with good corrosion resistance due to the presence of large amounts of chromium in these steels. Most of the stainless steels contain about 10% of chromium. Stainless steels are available in three different groups based on their crystalline structure. These groups include martensitic, austenitic and ferritic. The combination of martensitic and ferritic steels forms a fourth group of stainless steels known as precipitation-hardened steels.

Chemical Composition


Element Content(%)
Iron, Fe 86
Chromium, Cr 12.3
Manganese, Mn 1.0
Silicon, Si 0.50
Carbon, C 0.15
Phosphorous, P 0.040
Sulfur, S 0.030
Carbon, C 0.15

Mechanical Properties


Properties Metric Imperial
Tensile strength 485 MPa 70300 psi
Yield strength (@strain 0.200 %) 310 MPa 45000 psi
Fatigue Strength (annealed, @diameter 25mm/0.984 in) 275 MPa 39900 psi
Shear modulus (typical for steel) 76.0 GPa 11000 ksi
Elastic modulus 190-210 GPa 27557-30458 ksi
Poisson's ratio 0.27-0.30 0.27-0.30
Elongation at break (in 50 mm) 25.00% 25.00%
Izod impact (tempered) 102 J 75.2 ft-lb
Hardness, Brinell (converted from Rockwell B hardness) 139 139
Hardness, Knoop (converted from Rockwell B hardness) 155 155
Hardness, Rockwell B 80 80
Hardness, Vickers (converted from Rockwell B hardness) 153 153

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 403 Equivalent Grade / Specifications

  • AISI 403
  • AISI 614
  • ASTM A176
  • ASTM A276
  • ASTM A473
  • ASTM A314
  • ASTM A479
  • ASTM A511
  • ASTM A580
  • DIN 1.4000
  • QQ S763
  • AMS 5611
  • AMS 5612
  • FED QQ-S-763
  • MIL SPEC MIL-S-862
  • SAE 51403
  • SAE J405 (51403)

AISI 403 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.