AISI 1055

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AISI 1055

AISI 1055

Carbon steels are the steels having carbon as the major alloying element. They also contain up to 1.2% manganese and 0.4% silicon. In addition, the residual elements like copper, molybdenum, aluminium, chromium and nickel are present in these steels.

Chemical Composition


Element Content(%)
Iron, Fe 98.41-98.9
Manganese, Mn 0.60-0.90
Carbon, C 0.50-0.60
Sulfur, S ≤ 0.050
Phosphorous, P ≤ 0.040

Mechanical Properties


Properties Metric Imperial
Tensile strength, ultimate 660 MPa 95700 psi
Tensile strength, yield 560 MPa 81200 psi
Modulus of elasticity 190-210 GPa 29700-30458 ksi
Bulk modulus (typical for steel) 140 GPa 20300 ksi
Shear modulus (typical for steel) 80 GPa 11600 ksi
Poissons ratio 0.27-0.30 0.27-0.30
Elongation at break (in 50 mm) 10% 10%
Reduction of area 40% 40%
Hardness, Brinell 197 197
Hardness, Knoop (converted from Brinell hardness) 219 219
Hardness, Rockwell B (converted from Brinell hardness) 92 92
Hardness, Rockwell C (converted from Brinell hardness. Value below normal HRC range, for comparison purposes only) 13 13
Hardness, Vickers (converted from Brinell hardness) 207 207
Machinability (based on AISI 1212 steel. as 100 machinability) 55 55

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 1055 Equivalent Grade / Specifications

  • DIN 1.1209
  • ASTM A29
  • ASTM A510
  • ASTM A576
  • ASTM A682
  • FED QQ-S-700 (1055)
  • SAE J403
  • SAE J412
  • SAE J414

AISI 1055 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.