ThePipingMart Blog Grades SAE/AISI 1084 Carbon Steel(UNS G10840) – Composition, Properties and Uses

SAE/AISI 1084 Carbon Steel(UNS G10840) – Composition, Properties and Uses

SAE / AISI 1084

AISI 1084 Carbon Steel, also recognized as UNS G10840 and SAE-AISI 1084 steel, stands out as a versatile medium-carbon steel extensively employed in diverse applications such as knives, springs, and hand tools. Comprising 0.80%-0.93% carbon, 0.60%-0.90% manganese, and trace elements like phosphorus and sulfur, AISI 1084 manifests excellent toughness, strength, and wear resistance. This high-carbon steel, hot-rolled to craft robust products like gears and shafts, is celebrated for its unique amalgamation of properties. Notably, its carbon content facilitates easy heat treatment, enabling the attainment of desired properties, particularly heightened hardness. In industrial applications, AISI 1084 Carbon Steel has emerged as a preferred choice where durability and strength are imperative.

What Forms of AISI 1084 is Available at Piping Mart?

  • Nut
  • Bar
  • Bolt
  • Pipe
  • Screw
  • Tubing
  • Valves
  • Washers
  • Flanges
  • Fasteners
  • Electrodes
  • Stud Bolts
  • Sheet Plates
  • Pipe Fittings
  • Forged Fitting
  • Instrumentation Fittings

AISI 1084 Composition

SAE/AISI 1084 Carbon Steel (UNS G10840) comprises 0.80%-0.93% Carbon, 0.60%-0.90% Manganese, and trace elements. This well-balanced composition imparts excellent Toughness, Strength, and Wear Resistance, making it versatile for various applications.

Element Content (%)
Iron, Fe 98.08 – 98.6
Carbon, C 0.80 – 0.93
Manganese, Mn 0.60 – 0.90
Phosphorous, P 0.050
Sulfur, S 0.040

AISI 1084 Physical Properties

The Density of SAE/AISI 1084 Carbon Steel generally falls between 7.7 to 8.03 grams per cubic centimeter (g/cm³), indicating its mass per unit volume.

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

AISI 1084 Mechanical Properties

The elastic modulus of SAE/AISI 1084 Carbon Steel, a measure of its stiffness, typically ranges around 190-210 gigapascals (GPa). Poisson’s ratio, representing its lateral contraction under axial loading, is generally around 0.27-0.30.

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

AISI 1084 Uses

AISI 1084 Carbon Steel finds diverse applications due to its excellent wear resistance and toughness. Widely utilized for gears, shafts, and automotive components, this steel showcases reliable performance where durability and strength are crucial. Its versatile attributes make it a preferred choice across various industries for demanding applications.

AISI 1084 Uses in Industries

  • Automotive Industry
  • Tool Manufacturing
  • Construction Industry
  • Agricultural Equipment
  • Aerospace Industry

AISI 1084 Corrosion Resistance

SAE/AISI 1084 exhibits commendable corrosion resistance owing to its elevated carbon content, making it suitable for corrosion-prone environments, notably in automotive applications.

AISI 1084 Heat Resistance

SAE/AISI 1084 displays commendable heat resistance, making it applicable in high-temperature scenarios like the automotive industry.

AISI 1084 Heat Treatment

Enhancing strength and hardness in SAE/AISI 1084 involves heat treatment. By heating to a precise temperature and swiftly cooling, the steel undergoes quenching and tempering, a widely employed method to optimize its properties.

AISI 1084 Machining

SAE/AISI 1084 steel is crucial in manufacturing due to its moderate strength, ductility, and weldability. Its seamless workability, superior machinability, extended edge life, and resistance to chipping or cracking make it an ideal material. It is feasible to achieve various machining operations like Drilling, Tapping, and reaming, allowing manufacturers to leverage its diverse properties. With suitable tools and techniques, SAE/AISI 1084 proves versatile for crafting components of varying complexity, efficiently meeting a spectrum of industrial needs.


SAE/AISI 1084 Carbon Steel (UNS G10840) is invaluable for diverse projects, offering high tensile strength and toughness, which is ideal for engineering and manufacturing. Its adaptable composition allows customization for breakthrough strength and wear resistance. Crafting tools, automotive parts, or aerospace components ensures optimal performance. Consultation with a professional is advised for project suitability.

Related Post