AISI 5135

AISI 5135

Alloy steels are designated by AISI four-digit numbers. They quickly respond to mechanical and heat treatments than the carbon steels. They comprise different kinds of steels having composition which exceed the limitations of B, C, Mn, Mo, Ni, Si, Cr, and Va in the carbon steels.

Chemical Composition


Element Content(%)
Iron, Fe 97.445 - 98.17
Chromium, Cr 0.750 - 1.00
Manganese, Mn 0.600 - 0.800
Carbon, C 0.330 - 0.380
Silicon, Si 0.150 - 0.300
Sulfur, S ≤ 0.0400
Phosphorous, P ≤ 0.0350

Mechanical Properties


Properties Metric Imperial
Bulk modulus (typical for steel) 140 GPa 20300 ksi
Shear modulus (typical for steel) 80 GPa 11600 ksi
Elastic modulus 190-210 GPa 27557-30458 ksi
Poisson's ratio 0.27-0.30 0.27-0.30
Hardness, Brinell (annealed and cold drawn) 179 - 217 179 - 217
Hardness, Knoop (converted from Brinell hardness) 220 220
Hardness, Rockwell B (converted from Brinell hardness) 92 92
Hardness, Rockwell C 13 13
Hardness, Vickers (converted from Brinell hardness) 208 208
Machinability (annealed and cold drawn. Based on 100 machinability for AISI 1212 steel) 70 70

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 5135 Equivalent Grade / Specifications

  • AFNOR 38 C 4
  • DIN 1.7034
  • UNI 38 Cr 4 KB
  • JIS SCr 3 H
  • B.S. 530 A 36
  • B.S. 530 H 36
  • B.S. Type 3
  • ASTM A322
  • ASTM A331
  • ASTM A519
  • SAE J404
  • SAE J412
  • SAE J770

AISI 5135 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.