AISI 314

AISI 314

Stainless steel grade 314 has excellent high-temperature resistance characteristics among the chromium-nickel steels series. The silicon content in this material improves oxidation and carburization resistance; however, it can become very brittle when subjected to prolonged temperatures of 649-816°C (1200- 1500°F).

Chemical Composition


Element Content(%)
Iron, fe Balance
Chromium, Cr 23-26
Nickel, Ni 19-22
Manganese, Mn 2
Silicon, Si 1.5-3
Carbon, C 0.25
Sulfur, S 0.03
Phosphorous, P 0.045

Mechanical Properties


Properties Metric Imperial
Tensile strength 689 MPa 99900 psi
Yield strength 345 MPa 50000 psi
Modulus of elasticity 200 GPa 29000 ksi
Elongation at break (in 50 mm) 40% 40%
Hardness, Rockwell B 85 85

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 314 Equivalent Grade / Specifications

  • AFNOR Z 12 CNS 25.20
  • DIN 1.4841
  • UNI X 16 CrNiSi 25 20
  • UNI X 22 CrNi 25 20
  • JIS SUS Y 31O
  • B.S. 310 S 24
  • AMS 5522
  • AMS 5652
  • ASTM A276
  • ASTM A314
  • ASTM A473
  • ASTM A580
  • SAE 30314
  • SAE J405 (30314)

AISI 314 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.