UNS N06022 (Hastelloy C-22)

Short Introduction:

  • Hastelloy C-22/UNS N06022/SEW VDIUV W.Nr.2.4602 NiCr21Mo14W/AFNOR
  • NU-30M has a good resistance performance to pitting, crevice corrosion and stress corrosion cracking, have excellent inoxidability water medium performance, including the wet-chlorine, nitric acid or oxidizing acid mixed acid with chloride ion.

Category:

Description

Hastelloy C-22/ UNS N06022

Material grades and equivalents

Hastelloy C-22/UNS N06022/SEW VDIUV W.Nr.2.4602 NiCr21Mo14W/AFNOR NU-30M

 

Hastelloy C 22 Chemical composition:

 

Alloy

 %  Ni  Cr  Mo  Fe  W  Co  C  Mn  Si  V  P  S
  C Min.   balance 14.5 15 4 3
 Max.  16.5  17  7  4.5  2.5  0.08  1  1  0.35  0.04  0.03
  C22 Min.   balance 20 12.5 2 2.5
 Max.  22.5  14.5  6  3.5  2.5  0.02  0.5  0.08  0.35  0.02  0.02

 

Hastelloy C 22 Physical properties

Density 8.9 g/cm³
Melting point 1325-1370 ℃

 

Hastelloy C 22  Alloy minimum mechanical properties in the room temperature

 Alloy  Tensile Strength Rm N/mm²  Yield strength R P 0. 2N/mm² Elongation
A 5 %
Hastelloy C 22 690 283 40

 

Characteristic as below :

  • Hastelloy C 22 is a omnipotent of nickel, chromium and molybdenum mixed alloy, with better corrosion resistance performance than other alloys, for example, Hastelloy C276 alloy, C4 alloy and 625 alloy. HY  Hastelloy C 22 have a good resistance performance to pitting, crevice corrosion and stress corrosion cracking, have excellent inoxidability water medium performance, including the wet-chlorine, nitric acid or oxidizing acid mixed acid with chloride ion. Meantime, HY HC22 possesses perfect resistance to reduction and oxidation of processing enviroments, then it can be used in some complicated environment or with many different manufacture target factory depend on the omnipotent performance. HY HC22 possess prominent resistance performance to different chemical environments, including strong oxidizing matter, such as iron chloride, copper chloride, chlorine, heat pollution liquid(organic and inorganic), formic acid, acetic acid, acetyl oxide, sea water and salting liquid and so on.Hastelloy C 22 alloy can resist the grain boundary precipitate form when jointing heat affected zone, this performance made it can applied in many kinds of chemical processing.

Hastelloy C 22 Metallurgical structure

  • Hastelloy C22 is face-centered cubic lattice structure.

Hastelloy C 22 Corrosion resistance

  • Hastelloy C 22 alloy suit for many kinds of chemical process industry which contain the oxidizing medium and reductant. High molybdenum and chromium content make it can resist the chloride corrosion, and tungsten make this corrosion resistance better. HY HC22 is one of a few material that can resist the corrosion of moist chlorine, hypochlorite and chlorine dioxide, this alloyhave prominent corrosion resistanceto high concentration chlorate( iron chloride and copper chloride).

Hastelloy C 22 Application field:

  • Hastelloy C 22 is widely used in the chemical field and petrifaction field, such as the element of chloride organic and catalyze system. This material especially suit for high temperature environments, impure inorganic acid and organic acid (such as formic acid and acetic acid), sea-water corrosion environments.

Other application field:

  1. Acetic acid/acetyl oxide
  2. Acid dipping
  3. Cellophane paper manufactures
  4. Chloride system
  5. Complicated mixed acid
  6. Electrogalvanizing groove roller
  7. Expansion bellows
  8. Flue gas washer system
  9. Geothermal well
  10. Fluorine hydride furnace cleaner
  11. Incineration cleaner system
  12. Nuclear fuel regeneration
  13. Pesticide manufacture
  14. Phosphoric acid manufacture
  15. Acid cleaning system
  16. Plate heat exchanger
  17. Selectivity filter system
  18. Sulfur dioxide cooling tower
  19. Sulfonating system
  20. Tubing heat exchanger
  21. Resurfacing welding valve

Specifications:

  Rod, Bar, Wire and Forging Stock ASTM B 462 (Rod, Bar and Forging Stock), ASTM B 564 & ASME SB 564 (Forgings), ASTM B 574 & ASME SB 574(Rod, Bar and Wire), ASME Code Case 2226, ASME Code Case N-621, ISO 9723, ISO 9724, DIN 17752 (Rod &Bar), DIN 17753 (Wire), DIN 17754 (Forgings)
 Plate, Sheet and Strip ASTM B 575; ASTM B 906 & ASME SB 575; ASME SB906, ASME Code Case 2226, ASME Code Case N-621, ISO 6208, DIN 17750
   Pipe and Tube ASTM B 619; ASTM B 775 & ASME SB 619; ASME SB 775 (Welded Pipe), ASTM B 622; ASTM B 829 & ASME SB 622; ASME SB 829 (Seamless Tube), ASTM B 626; ASTM B 751 & ASME SB 626; ASME SB 751 (WeldedTube), ASME Code Case 2226, ASME Code Case N-621,ISO 6207, DIN 17751.
 Welding Products Filler Metal 622 - AWS A5.14 / ERNiCrMo-10, WeldingElectrode 622 - AWS A5.11 / ENiCrMo-10