SAE/AISI 1080 Carbon Steel (UNS G10800)

Image of SAE/AISI 1080 bars

SAE/AISI 1080 steel is often used in applications where high strength and hardness are required, such as springs, blades, cutting tools, and hand tools. It can be heat treated to improve its mechanical properties further.

Chemical Composition
ElementMinMax
Iron98.0%99.0%
Carbon0.75%0.88%
Manganese0.60%0.90%
Phosphorous0.04%
Sulfur0.05%

The following table provides a list of SAE/AISI 1080 properties in both SI and US customary/Imperial units.

Click on the icon to switch between Metric and Imperial units.

Table of SAE/AISI 1080 Properties
Physical Properties
Metric
Density7850 kg/m3
Mechanical PropertiesMetric
Tensile Strength (Ultimate)965 MPa
Tensile Strength (Yield)585 MPa
Young’s Modulus (E)190 - 210 GPa
Bulk Modulus (K)140 GPa
Shear Modulus (G)80 GPa
Elongation at Break12%
Reduction of Area17%
Poisson’s Ratio (ν)0.27 - 0.30
Brinell Hardness293
Thermal PropertiesMetric
Thermal Conductivity48 W/m·K
Specific Heat Capacity (Cp)470 J/kg·K
Coefficient of Thermal Expansion (αL)1.22×10-5 1/°C
Electrical PropertiesMetric
Electrical Conductivity5.57×106 S/m
Electrical Resistivity1.8×10-7 Ω·m

The values in this table are approximate and can vary depending on various factors such as the specific manufacturing process and heat treatment applied to the alloy.

Advantages & Disadvantages of 1080 Carbon Steel

AdvantagesDisadvantages
High StrengthLow Corrosion Resistance
Good Wear ResistanceDifficult to Weld
Good MachinabilityLower Toughness
Cost-Effective

Applications of 1080 Carbon Steel

1080 carbon steel finds applications in various industries and sectors due to its high strength and wear resistance. Some common applications of 1080 carbon steel include:

  • Blades and Knives: 1080 carbon steel is commonly used in the manufacturing of blades for knives, cutting tools, and industrial blades. It provides good sharpness and durability.
  • Springs: 1080 carbon steel is utilized in the production of springs, including flat springs, coil springs, and leaf springs. Its high strength and resilience make it suitable for applications where the spring needs to withstand heavy loads or repetitive stress.
  • Automotive Components: 1080 carbon steel is employed in various automotive components such as coil springs, torsion bars, and suspension system parts. Its strength and toughness contribute to the overall performance and durability of these components.
  • Hand Tools: Many hand tools, including hammers, chisels, punches, and wrenches, are made from 1080 carbon steel. Its hardness and ability to retain sharp edges make it suitable for withstanding heavy use and providing effective cutting, striking, and gripping functions.
  • Agricultural Equipment: Components in agricultural machinery, such as plow blades, tillage tools, and harrow teeth, can be manufactured using 1080 carbon steel. The wear resistance and strength of the steel help these components endure demanding conditions in the field.
  • Fasteners: Bolts, screws, and other fasteners often utilize 1080 carbon steel due to its strength and ability to withstand high stress and tension. It provides reliability and security in fastening applications.
  • Industrial Equipment and Machinery: 1080 carbon steel can be found in various industrial equipment and machinery components, such as gears, shafts, and couplings. Its high strength and wear resistance help ensure the longevity and performance of these parts.
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