AISI 1213 Carbon Steel (UNS G12130)

Topics Covered

Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations


Steels containing carbon as the main alloying element are referred to as carbon steels. They also contain 1.2% of manganese, and 0.4% of silicon. Residual elements such as chromium, molybdenum, copper, aluminium, and nickel are also present in small quantities.

The following datasheet gives an overview of AISI 1213 carbon steel.

Chemical Composition

The chemical composition of AISI 1213 carbon steel is outlined in the following table.

Element Content (%)
Iron, Fe 98.42 - 98.99
Manganese, Mn 0.70 - 1.0
Sulfur, S 0.240 - 0.330
Carbon, C  0.13
Phosphorous, P 0.070 - 0.12

Physical Properties

The physical properties of AISI 1213 carbon steel are tabulated below.

Properties Metric Imperial
Density 7.87 g/cm3 0.284 lb/in³

Mechanical Properties

The following table shows the mechanical properties of cold drawn AISI 1213 carbon steel.

Properties Metric Imperial
Tensile strength 540 MPa 78300 psi
Yield strength 415 MPa 60200 psi
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
Elongation at break 10% 10%
Reduction of area 35% 35%
Hardness, Brinell 167 167
Hardness, Knoop (converted from Brinell hardness) 188 188
Hardness, Rockwell B (converted from Brinell hardness) 85 85
Hardness, Vickers (converted from Brinell hardness) 175 175
Machinability (based on 100 machinability for AISI 1212 steel) 140 140

Thermal Properties

The thermal properties of AISI 1213 carbon steel are given in the following table.

Properties Metric Imperial
Thermal expansion co-efficient (@ 20°C/68°F, typical steel) 11.5 µm/m°C 6.39 µin/in°F
Thermal conductivity (typical steel) 51.9 W/mK 360 BTU in/hr.ft².°F

Other Designations

Other designations that are equivalent to AISI 1213 carbon steel include:

  • ASTM A108
  • ASTM A29
  • ASTM A576
  • SAE J403
  • FED QQ-S-637 (1913)

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