Hastelloy C22 Supplier

Hastelloy C22 Supplier

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Hastelloy® ALLOY C22

UNS Number N06022

Other common names: Alloy C22

Hastelloy C22, also known as alloy C22, is a versatile austenitic nickel-chromium-molybdenum-tungsten alloy with enhanced resistance to pitting, crevice corrosion and stress corrosion cracking.Alloy C-22 should not be used in service temperatures above 1250° F due to the formation of detrimental phases which form above this temperature.Hastelloy C-22 has resisted the formation of grain boundary precipitates in the weld heat-affected zone, making it a candidate for most chemical and petrochemical processing applications in the as-welded condition. The alloy has resisted both general and localized corrosion, including pitting, crevice corrosion, and stress corrosion cracking.

Hastelloy C-22 is readily fabricated by welding, using methods similar to those utilized for nickel-based alloys.

Fabrication of Hastelloy C-22

Although ductile enough to be formed by cold working, intermediate annealing may be necessary due to work hardening. Forging should be performed between 1750-2050° F followed by rapid cooling. Annealing can be performed at a temperature range between 2020-2150° F followed by a rapid quench. Cooling at an accelerated rate avoids the formation of detrimental phases which form between 1400-1800° F. Welding can be done by gas tungsten-arc, gas metal-arc and shielded metal-arc processes.

In what form is Hastelloy C22 Available at Superior Steel Overseas?

  • Sheet
  • Plate
  • Bar
  • Pipe & Tube (welded & seamless)
  • Fittings (i.e. flanges, slip-ons, blinds, weld-necks, lapjoints, long welding necks, socket welds, elbows, tees, stub-ends, returns, caps, crosses, reducers, and pipe nipples)
  • Wire

What are the characteristics of Hastelloy C22?

  • HASTELLOY C22 is one of the few alloys resistant to wet chloride gas, hypochlorite and chlorine dioxide solutions.
  • HASTELLOY C22 has exceptional resistance to strong solutions of oxidizing salts, such as ferric and cupric chlorides.
  • HASTELLOY C22 is not prone to grain boundary precipitation in the as welded condition and therefore suitable for many chemical process applications

Hastelloy C22 Composition

Hastelloy C22 Data Sheet

Hastelloy C22 Chemical Composition, %

C Cr Co Fe Mn Mo Ni P
.010 max 20-22.5 2.5 max 2.0-6.0 .50 max 12.5-14.5 Balance .02 max
Si S W V        
.08 max .02 max 2.5-3.5 .35 max        

Specification: ASME-SFA-5.14 ERNiCrMo-4

Hastelloy C22 ASTM Standards

Pipe Smls
Pipe Welded
Tube Smls
Tube Welded

Mechanical Properties

Typical Room Temperature Tensile Properties of Annealed Material

Product Form Tensile (ksi) .2% Yield (ksi) Elongation % Hardness (HRb)
Plate (.25”-1.75”) 112 53 62 89
Sheet (.038”-.15”) 122 63 54 93
Bar (.50”-5.50”) 115 55 60 89

Hastelloy C22 Melting Point

Physical Properties °F British Units °C Metric Units
Hasyelloy C22 Density 72 0.321 lb./in.(3) 22 8.89 g/cm(3)
Melting Range 2415-
75 51 microhm-in. 24 1.30 microhm-m

Mean Coefficient
of Thermal

75-200 6.2 microin./in.-°F 24-93 11.2 X 10(-6)m/m-K
75-400 6.7 microin./in.-°F 24-204 12.0 X 10(-6)m/m-K
75-600 7.1 microin./in.-°F 24-316 12.8 X 10(-6)m/m-K
75-800 7.3 microin./in.-°F 24-427 13.2 X 10(-6)m/m-K
75-1000 7.4 microin./in.-°F 24-538 13.4 X 10(-6)m/m-K
75-1200 7.8 microin./in.-°F 24-649 14.1 X 10(-6)m/m-K
75-1400 8.3 microin./in.-°F 24-760 14.9 X 10(-6)m/m-K
75-1600 8.8 microin./in.-°F 24-871 15.9 X 10(-6)m/m-K
75-1700 8.9 microin./in.-°F 24-927 16.0 X 10(-6)m/m-K


-270 50 Btu-in/ft²-hr-°F -168 7.2 W/m-K
-100 60 Btu-in/ft²-hr-°F -73 8.6 W/m-K
0 65 Btu-in/ft²-hr-°F 32 9.4 W/m-K
100 71 Btu-in/ft²-hr-°F 38 10.2 W/m-K
200 77 Btu-in/ft²-hr-°F 93 11.1 W/m-K
400 90 Btu-in/ft²-hr-°F 204 13.0 W/m-K
600 104 Btu-in/ft²-hr-°F 316 15.0 W/m-K
800 117 Btu-in/ft²-hr-°F 427 16.9 W/m-K
1000 132 Btu-in/ft²-hr-°F 538 19.0 W/m-K
1200 145 Btu-in/ft²-hr-°F 649 20.9 W/m-K
1400 159 Btu-in/ft²-hr-°F 760 22.9 W/m-K
1600 173 Btu-in/ft²-hr-°F 871 24.9 W/m-K
1800 185 Btu-in/ft²-hr-°F 982 26.7 W/m-K
2000 195 Btu-in/ft²-hr-°F 1093 28.1 W/m-K

Average Room Temperature Hardness

Form Hastelloy C22 Hardness,
Sheet Rb 90
Plate Rb 87


Hastelloy C22 Price per Pound

Hastelloy C22 Price in India: US $10-12 per Pound

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The Alloy C22 and Hastelloy C22 used in the following applications:-

  • Digesters and bleach plants in the paper industry.
  • Components exposed to sour gas.
  • Equipment for flue-gas desulfurisation plants.
  • Evaporators, heat exchangers, filters and mixers used in sulfuric acid environments.
  • Sulfuric acid reactors.
  • Organic chloride process equipment.
  • Equipment for processes utilizing halide or acid catalysts.

Some typical applications of Hastelloy C22 include equipment components in chemical and petrochemical organic chloride processes and processes utilizing halide or acid catalysts. Other industry applications are pulp and paper (digesters and bleach areas), scrubbers and ducting for flue gas desulfurization, pharmaceutical and food processing equipment.

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Available Stock of Hastelloy C22

Countries we have exported Hastelloy C22 : South Africa, Puerto Rico, Azerbaijan, Sri Lanka, India, Bhutan, Kenya, Saudi Arabia, Switzerland, Nigeria, New Zealand, Egypt, Ghana, Libya, Pakistan, Taiwan, United Kingdom, Indonesia, China, Croatia, Bangladesh, Vietnam, Ukraine, Angola, Romania, Jordan, Gambia, Namibia, Netherlands, Nepal, Zimbabwe, Mexico, Macau, South Korea, Russia, Oman, Yemen, Finland, Ireland, Qatar, Hong Kong, Estonia, Nigeria, Spain, Chile, Italy, Sweden, Poland, Germany, Trinidad & Tobago,Tunisia, Kuwait, Belgium, Iraq, Iran, Malaysia, Argentina, Chile, Thailand, Peru, Israel, United Arab Emirates, Ecuador, Hungary, Morocco, Turkey, Norway, United States, Iran, Belarus, Tibet, Canada, Colombia, Lebanon, Poland, Algeria, Mexico, Venezuela, Austria, Bahrain, Brazil, Bolivia, Mongolia, France, Greece, Japan, Serbia, Lithuania, Kazakhstan, Bulgaria, Afghanistan, Singapore, Slovakia, Gabon, Czech Republic, Portugal, Australia, Philippines, Denmark, Costa Rica.

Cities we have supplied Hastelloy C22 to: Mumbai, Muscat, Granada, Jamshedpur, Santiago, Chennai, Moscow, New York, Kuwait City, Navi Mumbai, Kolkata, Sharjah, Montreal, Karachi, Toronto, Riyadh, Baroda, Manama, Tehran, Ludhiana, Hanoi, Cairo, Secunderabad, Ankara, Jeddah, Busan, Al Khobar, Ho Chi Minh City, Atyrau, Howrah, Al Jubail, Visakhapatnam, Jakarta, Houston, Ulsan, Thiruvananthapuram, Faridabad, Port-of-Spain, Pimpri-Chinchwad, Singapore, Colombo, Vadodara, Brisbane, Hong Kong, Seoul, Hyderabad, Pune, Nagpur, London, Calgary, Kanpur, Abu Dhabi, Los Angeles, Gurgaon, Dallas, Rio de Janeiro, Gimhae-si, Ahvaz, Rajkot, Doha, Surat, Haryana, Ahmedabad, Bengaluru, Geoje-si, Sydney, Edmonton, Mexico City, Coimbatore, Bogota, Noida, Indore, Ernakulam, Aberdeen, Lagos, Caracas, New Delhi, Istanbul, Madrid, Courbevoie, Thane, Dubai, Melbourne, Chandigarh, Jaipur, Vung Tau, Kuala Lumpur, Petaling Jaya, Lahore, Milan, Ranchi, Chiyoda, Dammam, La Victoria, Nashik, Bhopal, Perth, Algiers, Bangkok.