ThePipingMart Blog Grades AISI 8822 Alloy Steel (UNS G88220) – Composition, Properties and Uses

AISI 8822 Alloy Steel (UNS G88220) – Composition, Properties and Uses

AISI 8822

AISI 8822 is a low-carbon steel available in the form of bars, billets, blooms, and slabs. This material is primarily used for parts that are subjected to high levels of stress. It has been heating treated for better machinability and improved corrosion resistance. With its excellent strength-to-weight ratio and good fatigue resistance, 8822 Alloy Steel is a highly versatile material with a range of uses. AISI 8822 Alloy Steel (UNS G88220) is a high-performance material that is widely used in the manufacturing industry. Known for its exceptional composition and properties, AISI 8822 Alloy Steel has become a popular choice for various applications. Its steel alloys, such as SAE-AISI 8822, possess a high level of strength and wear resistance, making them ideal for use in industries where durability is a top priority. The unique composition of the alloy steel provides its impressive properties, including a high level of hardenability and exceptional fatigue strength. These characteristics make AISI 8822 Alloy Steel a go-to material for manufacturers who require a reliable, high-performance steel that can withstand even the most demanding applications. Let’s take a closer look at UNS G88220 properties and potential applications.

What Forms of AISI 8822 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 8822 Composition

Element Content (%)
Iron, Fe Balance
Manganese, Mn 0.75-1.00
Nickel, Ni 0.40-0.70
Chromium, Cr 0.40-0.60
Molybdenum, Mo 0.30-0.40
Carbon, C 0.20-0.25
Silicon, Si 0.15-0.30
Sulfur, S 0.04 (max)
Phosphorus, P 0.035 (max)

AISI 8822 Physical Properties

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

AISI 8822 Mechanical Properties

Properties Metric Imperial
Elastic modulus 190-210 GPa 27557-30458 ksi
Poisson’s ratio 0.27-0.30 0.27-0.30

AISI 8822 Equivalent

  • DIN 1.6643
  • B.S. 805 A 20
  • ASTM A322
  • ASTM A331
  • ASTM A519
  • SAE J404
  • SAE J770
  • ASTM A29
  • SAE J1397

AISI 8822 Uses

AISI 8822 is a low alloy heat-treatable steel with a good combination of strength, formability, and toughness. It has a variety of fascinating uses, ranging from being cast into components for the automotive industry to simply being used as an ornamental ironwork. Its ductility and toughness make it an ideal choice for cold-heading applications as well. Indeed, due to its usage in the production of bolts, screws, and other similar fastening components, it is often referred to as an “automotive quality bolt” or “laminated steel”. The material can also be used in various industries, including the railroad industry, industrial furnaces, and machine tools, due to its exceptional ability to wisely distributes forces within structures and joints. This makes AISI 8822 an invaluable contributor to making our daily tasks much more efficient.

AISI 8822 Uses in Industries

  • Automotive Industry
  • Construction Industry
  • Aerospace Industry
  • Energy Industry
  • Manufacturing Industry
  • Agriculture Industry

AISI 8822 Corrosion Resistance

AISI 8822 has excellent corrosion resistance, making it suitable for outdoor use in areas with high humidity or salt spray exposure. The material also has good oxidation resistance up to temperatures of 927°C (1700°F). To further increase the corrosion resistance of AISI 8822 parts, they can be plated with chromium or nickel.

AISI 8822 Heat Resistance

Heat-treating AISI 8822 increases its hardness and tensile strength while reducing the material’s ductility. During the heat treatment process, care must be taken to avoid overheating, as this can lead to cracking or distortion. When exposed to temperatures above 538°C (1000°F), the steel will begin to lose its strength and become brittle. At temperatures exceeding 649°C (1200°F), carbide formation will begin, which can be detrimental to the material’s performance.

AISI 8822 Machining

The main advantage of AISI 8822 over other grades is that it is easier to machine than many other materials due to its lower carbon content. This makes it possible to create highly precise parts with intricate shapes and tight tolerances without having to resort to expensive finishing processes such as grinding or EDM (electrical discharge machining). The material is also relatively easy to weld using fusion welding methods, such as MIG and TIG welding, and brazing techniques, like oxyacetylene welding or silver soldering.


Overall, AISI 8822 provides excellent corrosion resistance, heat resistance, machinability, and weldability in an economical package. This makes it an ideal choice for a wide range of applications, from automotive components like gears and shafts through valves and oil pans all the way up to aerospace components like landing gear assemblies and turbine blades. If you are looking for an affordable yet reliable steel option for your next project, then AISI 8822 should definitely be on your radar!

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