Alloy Steel 20 Sheets & Plates

Sheet & Plates

M-Pipe & Fitting Solution Inc is a reputable company that manufactures and supplies high-quality alloy steel 20 sheets & plates. Alloy steel is widely used in various industries due to its exceptional mechanical properties and corrosion resistance. One such alloy that has gained significant popularity is Alloy Steel 20, also known as Carpenter 20 or Incoloy® 20. 

Composition and Properties of Alloy Steel 20:

Alloy Steel 20 is a nickel-iron-chromium alloy with the addition of molybdenum and copper. The chemical composition of Alloy Steel 20 typically includes the following:

  • Nickel (Ni): 32-38%
  • Chromium (Cr): 19-21%
  • Molybdenum (Mo): 2-3%
  • Copper (Cu): 3-4%
  • Iron (Fe): Balance

These elements contribute to the unique characteristics of Alloy Steel 20. It offers excellent resistance to pitting, crevice corrosion, and stress corrosion cracking in various corrosive environments. Additionally, Alloy Steel 20 exhibits exceptional resistance to sulfuric acid, phosphoric acid, and other aggressive media.

The mechanical properties of Alloy Steel 20 sheets and plates are as follows:

  • Tensile Strength: 80,000 psi (551 MPa) (min)
  • Yield Strength: 35,000 psi (241 MPa) (min)
  • Elongation: 30% (min)
  • Hardness: HRB 95 (max)

These properties make Alloy Steel 20 suitable for chemical processing, petrochemical, pharmaceutical, food processing applications, and more.

Forms of Alloy Steel 20 Sheets & Plates:

Alloy Steel 20 sheets and plates are available in various forms to cater to different requirements. Some commonly available forms include:

  1. Alloy 20 Sheets & Plates: Alloy Steel 20 sheets and plates are manufactured in different thicknesses and sizes. They offer excellent resistance to corrosion and are often used in environments containing sulfuric acid, phosphoric acid, and chloride solutions. These sheets and plates can be easily welded, fabricated, and machined to meet specific project needs.
  2. Alloy 20 Circles: Alloy 20 circles are disc-shaped products from Alloy Steel 20. They find applications in industries where corrosion resistance and high mechanical strength are crucial, such as chemical processing equipment, storage tanks, heat exchangers, etc.
  3. Alloy 20 Shim Sheets: Alloy 20 shim sheets are thin, flat sheets used for precise spacing and alignment in various mechanical and industrial applications. These sheets are corrosion-resistant and offer good mechanical strength, making them suitable for critical applications.

Applications of Alloy Steel 20 Sheets & Plates:

Alloy Steel 20 sheets and plates are used in various applications due to their unique properties. Some notable applications include:

  1. Chemical Processing: Alloy Steel 20 is extensively used in the chemical processing industry for manufacturing equipment such as reactors, heat exchangers, pumps, valves, and piping systems. Its excellent resistance to corrosion and aggressive chemicals makes it an ideal choice for handling corrosive fluids.
  2. Petrochemical Industry: Alloy Steel 20 finds applications in the petrochemical industry for various components, including storage tanks, process piping, and heat exchangers. Its resistance to sulfuric acid, commonly encountered in petrochemical operations, is particularly valuable.
  3. Pharmaceutical Industry: Alloy Steel 20 is used in pharmaceutical equipment manufacturing due to its excellent resistance to corrosion and contamination. It is often utilized to produce drug intermediates, active pharmaceutical ingredients (APIs), and sterile manufacturing processes.
  4. Food Processing: Alloy Steel 20 is suitable for applications in the food processing industry, where corrosion resistance and hygiene are essential. It is used in storage tanks, mixing vessels, pumps, and piping systems that handle acidic or corrosive food products.
  5. Desalination Plants: Alloy Steel 20 is widely employed in desalination plants, which convert seawater into fresh water. The alloy’s resistance to chloride-induced corrosion makes it ideal for desalination equipment, including heat exchangers, evaporators, and condensers.
  6. Power Generation: Alloy Steel 20 is utilized in power generation plants, especially in systems that produce and distribute corrosive gases, such as flue gas desulfurization units. It is also used in power plants’ heat exchangers, condensers, and piping systems.
  7. Offshore and Marine Industry: Alloy Steel 20 is favored in offshore and marine applications due to its resistance to seawater, salt spray, and other aggressive marine environments. It is used in seawater handling systems, offshore platforms, heat exchangers, and other marine equipment.

Alloy Steel 20 sheets and plates and their various forms, like circles and shim sheets, offer outstanding corrosion resistance, mechanical strength, and durability. Their composition, which includes nickel, chromium, molybdenum, and copper, contributes to their exceptional performance in challenging environments. From chemical processing to petrochemical, pharmaceutical, and food processing industries, Alloy Steel 20 finds versatile applications where resistance to corrosion and aggressive media is crucial. With its wide range of applications and exceptional properties, Alloy Steel 20 continues to be a preferred choice for critical applications across multiple industries. M-Pipe & Fitting Solution Inc provides certified sheet & plates that meet international standards such as API, ASTM, and ISO 9001:2015.

GradesAlloy 20 / UNS N08020
StandardASTM B168, B424, B443 / ASME SB168, SB424, SB443
Range0.5 MM TO 200 MM
FormFoils, Shim Sheet, Rolls, Perforated Sheet, Plain Sheet, Chequered Plate, Coils, Rolls, Strip, Flats, Blank (Circle), Ring (Flange) etc.
FinishHot rolled plate (HR), SATIN (Met with Plastic Coated), Cold rolled sheet (CR), 2B, 2D, BA NO(8)


Alloy 20 SheetsAlloy 20 PlatesAlloy 20 Coils
Alloy N08020 PlatesAlloy 20 CoilsAlloy 20 Flats
Alloy 20 Shim SheetAlloy N08020 Chequered PlateAlloy 20 Strips
Alloy 20 Cold Rolled SheetAlloy N08020 Hot Rolled PlateAlloy 20 Circle
Alloy 20 PlatesAlloy N08020 SheetAlloy 20 Forging Ring
Alloy 20 FoilsAlloy UNS N08020 FlatsAlloy 20 Perforated Sheet
Alloy 20 RollsAlloy 20 Plain SheetUNS N08020 Alloy Plate


Alloy Steel 20 Hot Rolled Sheets & Plates. Hot rolled sheets and plates are produced by heating the Alloy Steel 20 material above its recrystallization temperature and then rolling it into the desired thickness. Hot rolled sheets and plates have a rough surface finish and are typically used in applications where aesthetics are not a primary concern but strength and durability are essential.

  • Construction Industry
  • Food Service Industry
  • Chemical Industry
  • Transportation Industry
  • Marine Industry
  • Textile Industry
  • Infrastructure Industry