AISI 1145

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AISI 1145

AISI 1145

Carbon steels are designated by AISI four-digit numbers. They contain carbon as the chief alloying element. Molybdenum, chromium, nickel, aluminium, and copper are present in small quantities. They also contain 1.2% of manganese and 0.4% of silicon.

Chemical Composition


Element Content(%)
Manganese, Mn 0.69
Carbon, C 0.44
Silicon, Si 0.20
Copper, Cu 0.06
Nickel, Ni 0.04
Sulfur, S 0.038
Phosphorous, P 0.037
Chromium, Cr 0.03
Arsenic, As 0.024
Aluminum, Al 0.006

Mechanical Properties


Properties Metric Imperial
Elastic modulus 190-210 GPa 27557-30458 ksi
Poisson's ratio 0.27-0.30 0.27-0.30

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 1145 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.