Ispat Alloys & Tube Industries
Ispat Alloys & Tube Industries
VP Road, Mumbai, Maharashtra
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Alloy 20 Sheets

Manufacturer of a wide range of products which include alloy 20 sheets / plates / coils (n08020, 2.4660).

Alloy 20 Sheets / Plates / Coils (N08020, 2.4660)

Alloy 20 Sheets / Plates / Coils (N08020, 2.4660)
  • Alloy 20 Sheets / Plates / Coils (N08020, 2.4660)
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Approx. Price: Rs 500 / KgGet Latest Price

Product Details:

StandardAlloy 20 Sheets / Plates / Coils (N08020,2.4660)
Usage/ApplicationGas,Chemical Handling
Width1250mm x 2500mm,1500mm x 6000mm,Customizable
Corrosion resistanceExcellent
PackingWooden Boxes


Alloy 20 is a nickel-iron-chromium based, austenitic alloy with excellent corrosion resistance in chemical environments containing sulfuric acid and many other aggressive media. This alloy is stabilized with niobium to resist intergranular corrosion. Alloy 20 may provide potential cost savings when carefully compared to higher nickel-based alloys, while out performing standard stainless steels.

Industries and Applications

Alloy 20 is used in a variety of industries, including chemical processing, petrochemical and refining, marine, pharmaceutical and food processing. End use applications include storage tanks, mixing tanks, agitators, pump and valve parts, food processing equipment, fasteners and fittings. Applications are limited to a maximum temperature of 1000°F per ASME. It is also important to determine if the necessary corrosion resistance can be achieved within the given environment.

Resistance to Corrosion

Alloy 20 has very good resistance to sulfuric acid. This alloy also shows suitable resistance in phosphoric acid, nitric acid and aqueous salt solutions. Alloy 20 is an excellent option when chloride stress corrosion cracking is an issue, as it resists pitting and crevice corrosion. Caution should be taken in chloride ion containing environments because the corrosion rate can increase significantly.

Fabrication and Heat Treatment

Alloy 20 can be formed by either hot-working or cold-work using traditional methods. Hot forged material should be heated between 2100°F and 2250°F with careful temperature control insuring that the material not fall below 1800°F prior to forging. After hot working, anneal the material by heating to 1725°F and 1850°F for a minimum of 30 minutes per inch of thickness followed by water quench.

When stress relieving is desired, heat to a temperature below 1000°F followed by water quench after the desired time at temperature has been established. Annealing Alloy 20 should be between 1725°F and 1850°F for 30 minutes at temperature per inch of thickness. A lower hardness can be obtained by heating to 2100°F but his may have a negative effect on the stabilization of the alloy.

Chemical Composition (%):

IronNickelChromiumCopperMolybdenumManganeseNiobium* + Tantalum
Remainder32.00 to 38.0019.00 to 21.003.00 to 4.002.00 to 3.002.00 max(8 x C) to 1.00
1.00 max0.07 max0.045 max0.035 max   

We are Industrial reowned brand manufacturers of Piping Products such as Pipe fittings, Tube fittings, Flanges, Fasteners.
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Rakesh Jain (Manager)
Ispat Alloys & Tube Industries
33/35, Damodar Bhuvan, 1st Parsiwada Lane
VP Road, Mumbai - 400004, Maharashtra, India
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