AISI 1080 Carbon Steel (UNS G10800)

Topics Covered

Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations


Steels that have carbon as the key alloying element are called as carbon steels. They also contain up to 0.4% silicon and 1.2% manganese. The residual elements such as copper, molybdenum, aluminium, chromium and nickel are also present in these steels.

The following datasheet will discuss about AISI 1080 carbon steel in detail.

Chemical Composition

The chemical composition of AISI 1080 carbon steel is outlined in the following table.

Element Content (%)
Iron, Fe
98.0 - 99.0
Carbon, C 0.75 - 0.88
Manganese, Mn 0.60 - 0.90
Sulfur, S 0.05 (max)
Phosphorous, P 0.04 (max)

Physical Properties

The physical properties of AISI 1080 carbon steel are tabulated below.

Properties Metric Imperial
Density 7.7-8.03 g/cm3 0.278-0.290 lb/in³

Mechanical Properties

The following table shows mechanical properties of AISI 1080 carbon steel.

Properties Metric Imperial
Elastic modulus 190-210 GPa 29700-30458 ksi
Poisson’s ratio 0.27-0.30 0.27-0.30

Thermal Properties

The thermal properties of AISI 1080 carbon steel are given in the following table.

Properties Conditions
T (ºC) Treatment
Thermal expansion co-efficient 14.7 x (10-6/ ºC) 20 - 700 annealed
Thermal conductivity 48.1 W/mK 100 -

Other Designations

Other designations that are equivalent to AISI 1080 carbon steel include the following:

  • AMS 5110
  • AMS 5110B
  • ASTM A29 (1080)
  • ASTM A510 (1080)
  • ASTM A576 (1080)
  • ASTM A682 (1080)
  • ASTM A713 (1080)
  • ASTM A830
  • QQ S700 (C1080)
  • SAE J1397 (1080)
  • SAE J403 (1080)
  • SAE J412 (1080)
  • MIL SPEC MIL-S-16974

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