Hastelloy C22 Pipe

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Hastelloy C22 Pipe
What is Hastelloy c22 pipe ?

Alloy C22 is a super alloy of nickel, chromium and molybdenum, which has been solid solution strengthened. It also has iron, tungsten and cobalt added to the alloy, which influences the properties of C22. Hastelloy c22 pipe shows great resistance to oxidation and corrosion.

They have good fabricability and possess enhanced mechanical properties in a wide range of temperatures. The EN 2.4602 cold drawn pipe shows good resistance to hydrochloric acids in all concentrations from ambient to high temperatures. They can resist different forms of corrosion including pitting, crevice and stress corrosion cracking.

The nickel C22 hot finished pipe should be used within 1250 °F or the detrimental phases can form. The pipes are widely used in marine applications as C22 can resist aqueous corrosion in stagnant and flowing salt water. They have good weldable properties too. The 2.4602 Hastelloy C22 clad pipe has a standard thickness range of 0.038 to 0.141” and can be used in pollution control and chemical processing sectors.

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We are one of India's top suppliers of alloy c22 seamless pipe made at reputable mills , contact us for price list

What is the cost of alloy c22 pipe in india?

The alloy c22 pipe is more expensive than standard stainless steel pipe due to its chemical composition and properties. It has costly elements like nickel, chromium, molybdenum, tungsten, etc., which enhances the corrosion resistance properties. However, the exact price of pipes can vary with the Hastelloy c22 pipe supplier, their internal costing strategies and market conditions. Factors like size and dimensions, customization, quality, additional testing requirements and delivery location can also alternate the price. Renowned suppliers like Regent Steel & Engineering Co. offer high quality UNS N06022 cold finished pipes at a competitive rate.

Why pay more if you can purchase this Hastelloy c22 seamless pipe in the precise size? See hardness of Hastelloy alloy C22 annealed pipe

Alloy c22 pipe

Alloy c22 pipe

Hastelloy c22 seamless pipe

Hastelloy c22 seamless pipe

UNS N06022 welded pipe

UNS N06022 welded pipe

What is the hardness of c22 pipe?

The hardness of c22 pipe can range between 40-50 Rockwell. Thus, they are ideal for applications involving high temperatures and pressures.

Being a stockist, we offer Hastelloy 2.4602 square pipe in Mumbai in sizes ranging from 0.250 to 4 inches for an affordable price, read specification

Hastelloy c22 pipe specification
Hastelloy C22 pipe specification


Size Length Wall Thickness
0.5 to 8 inch 6 to 12 meter Sch 10 to Sch 80
Specification Process Application
ASTM B619/B626/B622 seamless, hot rolled, annealed, welded marine, chemical processing, power
To meet the needs of your project, we are here to provide you with any nickel alloy C22 welded pipe requirements, check available types
Most popular types of alloy c22 pipe
Nickel alloy c22 square pipe

Nickel alloy c22 square pipe

  • ERW
  • Seamless
  • Welded
DIN 2.4602 round pipe

DIN 2.4602 round pipe

  • ½” to 6” NB
  • Length: upto 12 mtr
  • ASTM B619, ASTM B622
Hastelloy alloy c22 annealed pipe

Hastelloy alloy c22 annealed pipe

  • Bright
  • Cold Finish
  • Polished
As a leading stockholder of alloy c22 pipe, we offer value-added services in addition to a range of wall thicknesses, learn more about its chemical/mechanical/equivalent properties
UNS N06022 pipe mechanical properties
Element Tensile Strength Melting Point Yield Strength (0.2%Offset) Density Elongation
Hastelloy c22 Psi – 1,00,000 , MPa – 690 1399 °C (2550 °F) Psi – 45000 , MPa – 310 8.69 g/cm3 45 %
Hastelloy c22 seamless pipe equivalent
Hastelloy c22 N06022 NiCr21Mo14W NW 6022 2.4602
DIN 2.4602 round pipe chemical properties
Grade Mo P Mn C Si S Co Ni Cr Fe
Hastelloy c22 12.50 – 14.50 0.02 max 0.50 max 0.010 max 0.08 max 0.02 max 2.50 max 50.015 min* 20.00 – 22.50 2.00 – 6.00
How do you identify Hastelloy c22 seamless pipe?

To ensure the pipe material is alloy C22 and its quality, you should:

  • Purchase from a reputed and reliable manufacturer like Regent Steel & Engineering Co. Apart from getting assured quality, you can ask for material certificates to ensure the characteristics of the seamless Hastelloy alloy C22 annealed pipe.
  • Check the pipe for any kind of marking with information like material name, manufacturer’s logo, etc.
  • Hastelloy c22 seamless pipe has a distinctly bright and shiny appearance.
  • You can go for third party inspection, if required or you have any doubt about the material or its quality.
  • You can use technology like metallography to examine the microstructure and confirm the metallurgical structural presence of C22 material.
How can you tell the difference between stainless steel and Hastelloy c22?
  • Stainless steel and Hastelloy c22 materials have different appearances. SS is shiny grey or silver, whereas C22 is brighter.
  • UNS N06022 pipe material has a more complex metallurgical structure than standard stainless steel.
  • They have different alloy compositions and are hence used for separate applications. Hastelloy 2.4602 square pipe is preferred for more corrosion resistant and aggressive chemical environments like chemical and petrochemical industries.
Is nickel alloy C22 welded pipe easy to machine ?

The nickel alloy C22 welded pipe is hard to machine due to its high strength and toughness. The C22 material has a tendency to work harden during machining. Also, the DIN 2.4602 round pipe material has a complex alloy composition which can reduce machinability. It also has a low thermal conductivity which can cause heat buildup during machining.

Hastelloy alloy c22 annealed pipes characteristics
Melting Range 1355 - 1400°C
Density 8.61 g/cm³
Temperature Range Material for wet corrosion
ISO-V notch impact toughnessISO-V notch impact toughness ≥ 120 J/cm² at -196°C
  ≥ 150 J/cm² at room temperature
Heat treatment of hastelloy c22 welded pipe
Alloy Type of Quench Solution-annealing Temperature*
- °C °F





Nickel C22 hot finished pipe pressure rating
Wall Thickness (Inches)
.065 .035 .028 .049 .095 .083 .120 .109
  Working Pressure
1/4 9500 4800 3700 7000
1/8 10100 7900
3/8 6100 3100 4400
5/16 7300 3700 5400
3/4 3000 2200 4600 4000
1/2 4400 2300 3200
1 2200 3400 2900 4300 3900
Surface finish of c22 pipes
Code Finish Contact Surface of product
(Maximum Ra)*
Contact Surface of Non-Product
(Maximum Ra)
-PL 20 µ-inch (0.5 µm) 32 µ-inch (0.8 µm)
-SF Sanitary Finish* Mill Finish
-PU Mill Finish Mill Finish
PRE number of hastelloy c22 welded pipe
22 65 46
What is international specifications of alloy c22 pipes ?
  • DIN 17751
  • ISO 6207
What are common trade names of c22 pipes ?

Inconel 22, Alloy 22, Nickel 22, Nicrofer 5621.

What is internal surface finish of UNS N06022 pipes?

SF5 - 0,51μm (20Ra) EP and SF1 - 0,51μm (20Ra)

Which filler metal is used for welding of EN 2.4602 cold drawn pipes?

Welding Rod (WIG) 2.4635

What is density of nickel alloy C22 welded pipes?

8.69 g/cm3