Kanakratna Steelage Pvt. Ltd.
Kanakratna Steelage Pvt. Ltd.
KHETWADI, Mumbai, Maharashtra
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Alloy 20

Alloy 20, also known as Carpenter® 20 and Incoloy® 20, is an austenitic nickel-iron-chromium alloy. This super alloy, which also includes copper and molybdenum, is popular in the production of gasoline, solvents, explosives, chemicals, pharmaceuticals and food and synthetic materials. It offers users a wide variety of benefits including:

  • Excellent resistance to corrosion, crevice corrosion, and pitting
  • Perfect for use around sulfuric, phosphoric, and nitric acids
  • Ease of fabrication and elevated mechanical properties

Available in flat bar, forging stock, hexagon, plate, pipe, sheet, strip, round bar, tube, and wire, Alloy 20 can be fabricated to produce:

  • Mixing Tanks
  • Heat Exchangers
  • Process Piping
  • Pickling Equipment
  • Pumps, valves, fasteners, and fittings

Alloy 20 meets or exceeds different industry standards including a multitude of ASTM, ASME, ISO, and DIN standards. TIG, MIG, and SAW welding can be used on Alloy 20, and can be formed through hot and cold working.

Alloy 20 has a unique chemical composition:

  • Fe 31-44% balance
  • Ni 32.5-35%
  • Cr 19-21%
  • Cu 3-4%
  • Mo 2-3%

Due to its high nickel content (32-38%), there is some disagreement whether Alloy 20 is a nickel or a stainless steel alloy. No matter what side of the discussion you fall on, it is clear that Alloy 20 is an excellent choice for a wide variety of industries and applications. At Continental Steel, we are proud to stock and sell Nickel Alloy 20, Carpenter® 20, and Incoloy® 20 in all of the popular sizes and forms.

We stock and sell Nickel Alloy 20, Carpenter®20 and Incoloy®20 inFlat Bar, Forging Stock, Hexagon, Plate, Pipe, Sheet,Strip, Round Bar, Tube and Wire.

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  • Alloy 20 Round Bar (UNS N08020)
  • Alloy 20 Round Bar (UNS N08020)
Alloy 20 Round Bar (UNS N08020)
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Alloy 20 Round Bar (UNS N08020)

Approx. Price: Rs 1,200 / kgsGet Latest Price
Product Details:
Minimum Order Quantity5 kgs
StandardASTM / ASME
WidthThickness: 1 -100mm
Usage/ApplicationAutomobile Industry
Single Piece Length6 meter, 3 meter
SizeDiameter: 3-~800mm
UsageManufacturing, Precision Components
FinishCold (bright) drawn, centreless ground,smooth turned, peeled, slit rolled edge, hot rolled, hot roll

Alloy 20 Stainless Steel Bar

UNS N08020

UNS N08020, also known as Alloy 20 is one of the “super” stainless steels developed for maximum resistance to acid attack, because of this, there are various uses for it in both the stainless and nickel industries. Alloy 20 seems to fall in-between both the stainless and nickel categories, as it does contain characteristics of both; however, the unified numbering system (UNS) does ultimately recognize it as a nickel based alloy, hence the UNS N08020 number.

Alloy 20 is an austenitic nickel-iron-chromium based alloy with additions of copper and molybdenum. Its nickel content aids in its chloride ion stress and corrosion resistance. The addition of copper and molybdenum provides resistance to hostile environments, pitting and crevice corrosion. Chromium adds to its resistance of oxidizing environments, such as nitric acid, and columbium (or niobium) reduces the effects of carbide precipitation. Most welding methods can be used when working with Alloy 20, except for oxyacetylene welding. It can also be hot formed using the same forces required to hot work austenitic stainless steels. In terms of machineability, outstanding finishes are possible using the same set-up and process speeds used for austenitic stainless steels, such as Stainless Steels 316 or 317.

Industries that use Alloy 20 include:

• Chemical

• Food processing

• Industrial fluid handling

• Petroleum

• Pharmaceuticals

• Solvents

Products partially or completely constructed of Alloy 20 include:

• Centrifugal pumps

• Control valves

• Cryogenic ball valves

• Flow switches

• Pressure relief valves

• Rotary gear process pumps

• Spiral wound gaskets

• Strainers














.07 Max

2. Max

.045 Max

.035 Max

1. Max

19. – 21.

32. – 38.

2. – 3.

3. – 4.


Additional Information:
  • Item Code: UNSN08020
  • Production Capacity: 10 Tons Per Size
  • Delivery Time: Ready Stock
  • Packaging Details: Export Worthy Packing
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Alloy 20 Sheets (UNS N08020 Sheets)
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Alloy 20 Sheets (UNS N08020 Sheets)

Approx. Price: Rs 1,000 / KilogramGet Latest Price
Product Details:
Minimum Order Quantity1 Kilogram
StandardASTM B463 / ASME SB463
Usage/ApplicationProduction of plastics and synthetic fibers, Chemical and petroleum processing equipment, Mixing
TemperSoft, Hard, Half Hard, Quarter Hard, Spring Hard etc.
Thickness0.1 MM TO 200 MM THICK
Width1000 MM TO 2500 MM WIDTH & 2500 MM TO 6000 MM LENGTH
Surface TreatmentHot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated)

Kanakratna Steelage is a known Importer,supplier and manufacturer of Alloy 20 Plates, which is a nickel–chromium–molybdenum stainless steel alloy developed for applications involving sulfuric acid. Alloy UNS N08020 Plates has excellent resistance to general corrosion, pitting, and crevice corrosion in chemicals containing chlorides and sulfuric, phosphoric, and nitric acids. Alloy DIN 2.4660 Plates is an iron-base, austenitic alloy with excellent corrosion resistance to a number of different media and proves to be useful in a number of applications such as flue-gas desulfurization, chemical processing, food processing and storage as well as pharmaceutical applications to name a few. Alloy 20 Sheets is a columbium stabilized material that combines excellent corrosion resistance with elevated mechanical properties and relatively easy fabrication. Alloy 20 Coils is also stabilized with Columbium to minimize carbide precipitation during welding. Restricted carbon plus columbium stabilization permits welded fabrications to be used in corrosive environments, normally without post-weld heat treatment.

Alloy 20 Sheets is a solution for stress corrosion cracking that can occur when stainless steel is introduced to chloride solutions. This Incoloy 20 Coils, which also includes copper and molybdenum, is popular in the production of gasoline, solvents, explosives, chemicals, pharmaceuticals and food and synthetic materials. ASTM A265 Carpenter 20 Plates are often used in Production of plastics and synthetic fibers, Chemical and petroleum processing equipment, Mixing tanks, Structural Steel, Process piping, and more. ASTM B366 Carpenter 20 Sheets has excellent general corrosion resistance to sulfuric acid, excellent resistance to chloride stress corrosion cracking, and excellent mechanical properties and fabricability. Buy Incoloy 20 Plates at reasonable price from us.

Alloy 20 Plates Equivalent Grades
Alloy 20 2.4660 N08020 Z2NCUD31-20AZ NiCr20CuMo

Alloy 20 Plates Chemical Composition :
Grade Ni Cr C Mn Si Cu Cr Mo S P Nb
Alloy 20 32 – 38 Bal 0.02 max 1 – 2 0.7 max 3 – 4 19 – 21 2 – 3 0.005 max 0.02 max 0.1 – 0.3

Additional Information:
  • Production Capacity: 10 tons
  • Delivery Time: Ready STock
  • Packaging Details: Export Worthy Packaging
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