AISI 308

AISI 308

Stainless steels are high-alloy steels which have high corrosion resistance when compared to other steels due to their high content of chromium. They are divided in to ferritic, austenitic, and martensitic steels based on their crystalline structure. Precipitation-hardened steels are another group of stainless steels. They are a combination of martensitic and austenitic steels.

Chemical Composition


Element Content(%)
Iron, Fe 66
Chromium, Cr 20
Nickel, Ni 11
Manganese, Mn 2.0
Silicon, Si 1.0
Carbon, C 0.080
Phosphorous, P 0.045
Sulfur, S 0.030

Mechanical Properties


Properties Metric Imperial
Tensile strength 585 MPa 84800 psi
Yield strength (@ strain 0.200%) 240 MPa 34800 psi
Izod impact 135 - 165 J 99.6 - 122 ft-lb
Charpy impact 135 J 99.6 ft-lb
Elastic modulus 193 GPa 27993 ksi
Poisson's ratio 0.27-0.30 0.27-0.30
Elongation at break (in 50 mm) 50% 50%
Hardness, Brinell 139 139
Hardness, Knoop (converted from Rockwell B hardness) 155 155
Hardness, Rockwell B (converted from Rockwell B hardness) 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 308 Equivalent Grade / Specifications

  • ASTM A167
  • ASTM A276
  • ASTM A314
  • ASTM A473
  • ASTM A580
  • DIN 1.4303
  • UNI 8 CrNi 19 10
  • JIS SUS 305
  • JIS SUS 305 J1
  • SAE 30308
  • SAE J405 (30308)

AISI 308 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.