AISI 430

AISI 430

Stainless steel grade 430 is a non-hardenable steel containing straight chromium, and belongs to the ferritic group of steels. This steel is known for its good corrosion resistance and formability, coupled with practical mechanical properties. It can be used in certain chemical applications due to its resistance to nitric acid. Grade 430F stainless steel is usually provided in bar form to be used in automatic screw machines.

Grade 434 has similar properties as grade 430, although it is a molybdenum-bearing version. The molybdenum content enhances its corrosion resistance.

Chemical Composition


Element Content(%)
Carbon, C 0.12
Manganese, Mn 1
Silicon, Si 1
Phosphorous, P 0.04
Sulfur, S 0.030
Chromium, Cr 16 - 18
Nickel, Ni 0.50

Mechanical Properties


Properties 430
Tensile Strength (MPa) min 483
Tensile Strength (MPa) min 310
Elongation (% in 50mm) min 22
Hardness (HRB) 85
Hardness (HB) 183

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 430 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.