N08020/alloy 20



INCOLOY is an alloy composed of nickel-iron-chromium, with additions of molybdenum and copper. These alloys are categorized as super alloys and exhibit excellent corrosion resistance and high strength. Some of the INCOLOY alloys are specifically made to resist selected reagents. These alloys are capable of functioning even at high temperatures.

INCOLOY alloy 020 exhibits excellent corrosion resistance in chemical environments that contain sulphuric acid, chlorides, phosphoric acid and nitric acid. It is easy to fabricate this alloy to form mixing tanks, heat exchangers, pickling equipment etc. The standard forms in which this alloy is available are round, flats, pipe, tube, strip and wire.

This datasheet will look into the chemical composition, properties and applications of INCOLOY 020.

Chemical Composition

The chemical composition of INCOLOY alloy 020 is given in the following table.

Element Content (%)
Nickel, Ni 32-38
Iron, Fe 35
Chromium, Cr 19-21
Copper, Cu 3-4
Molybdenum, Mo 2-3
Manganese, Mn ≤2
Niobium, Nb ≤1
Silicon, Si ≤1
Others Remainder

Physical Properties

The following table discusses the physical properties of INCOLOY alloy 020.

Properties Metric Imperial
Density 8.05 gm/cm3 0.291 lb/in3

Mechanical Properties

The mechanical properties of INCOLOY alloy 020 are tabulated below.

Properties Metric Imperial
Tensile strength(annealed) 620 MPa 89.9 ksi
Yield strength(annealed) 300 MPa 43.5 ksi
Elongation at Break 41% 41%

Other Designations

Some of the designations used to denote INCOLOY alloy 020 are listed below:

  • UNS N08020
  • ASME SB-462 – SB 464
  • ASME SB 468
  • ASTM B 462
  • ASTM B 464
  • ASTM B 472
  • ASTM B 474
  • ASTM B 751.



INCOLOY alloy 020 can be welded by shielded metal arc welding, gas tungsten arc welding and gas metal arc welding. The filler metal is usually an INCONEL alloy.

Hot Working

INCOLOY alloy 020 can be hot worked at temperature ranges of 760-1175°C (1400-2150°F).


INCOLOY alloy 020 should be annealed at 982-1010°C (1800-1850°F) for time commensurate with section size /AC.


The INCOLOY alloy 020 is used in the following applications:

  • Produce mixing tanks, heat exchangers, valves, fittings and fasteners
  • Production of gasoline, solvents, explosives and organic chemicals
  • Pharmaceuticals and food industry




Supply Form



Thickness?0.40-4.75mm?General Width?1000?1219?1500mm

Whole Coil or piece of it

Cold Annealed?Surface 2B?2E


Thickness?4.76-60mm?Width?1500?2000?2500mm?Length?3000?6000?8000?8500mm?Under 10mm plate can be coiled?

Whole Coil or piece of it

Single hot rolling?Solid solution annealed state?Surface 1D



Whole Coil or Specified size

Cold Annealed?Surface 2B?2E

Bar & Rod

Rolled barΦ5-45mm?Length≤1500mm

Polished Bar?circle?Square?

Solution annealing,descaling

Forged barΦ26-245mm?Length≤4000mm

Weld tube

Outer diameterΦ4.76-135mm?Wall Thickness0.25-4.00mm?Length?≤35000 mm

Base on your requirement

Use for PHE

Seamless Tube

Outer diameterΦ3-114mm?Wall Thickness0.2-4.5mm

Base on your requirement

Use for PHE


Outer diameterΦ0.1-13mm

Base on your requirement

Ni & Ni alloy, Ti & Ti alloy

Forged piece

roundness and square alloy

Base on your requirement

Steel, Alloy


All kinds of Flangs

Base on your requirement

Steel, Alloy

Welding Material

Coil wire Φ0.90mm/1.2mm/1.6mm

Base on your requirement

Certificate of Origin?America, Sweden, Britain, Germany, Austria, Italy, France.

Straight WireΦ1.2mm/1.6mm/2.4mm/3.2mm/4.0mm

Welding rodΦ2.4mm/3.2mm/4.0mm


Elbow, three links, four links, different diameter size

Base on your requirement

Ni & Ni alloy, Ti & Ti alloy

Explosive bonded laminate

Raw Sheet Thickness≥2mm

Base on your requirement

Ni & Ni alloy, Ti & Ti alloy

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