Hastelloy Tubes Hastelloy Alloy Tubing
  • Hastelloy Tubes Hastelloy Alloy Tubing

Hastelloy® is the registered trademark name of Haynes International, Inc. The trademark is applied as the prefix name of a range of over twenty different highly corrosion resistant metal alloys loosely grouped by the metallurgical industry under the material term “superalloys” or “high performance alloys”.

Examples of Hastelloy alloys are:

The predominant alloying ingredient is typically the transition metal nickel. Other alloying ingredients are added to nickel in each of the subcategories of this trademark designation and include varying percentages of the elements molybdenum, chromium, cobalt, iron, copper, manganese, titanium, zirconium, aluminum, carbon, and tungsten.

The primary function of the Hastelloy super alloys is that of effective survival under high temperature, high stress service in a moderately to severely corrosive, and/or erosion prone environment where more common and less expensive iron-based alloys would fail—including the pressure vessels of some nuclear reactors, chemical reactors, and pipes and valves in chemical industry.

SB622-N10276-Seamless-Tubes
Hastelloy B-3 alloySame excellent resistance to hydrochloric acid and other strongly reducing chemicals as B-2 alloy, but with significantly better thermal stability, fabricability and stress corrosion cracking resistance. 
Hastelloy- BC1 alloyA new Ni-Cr-Mo alloy with superior resistance to hydrochloric and sulfuric acids, without the drawbacks of the Ni-Mo and Zr materials. Its resistance to these key chemicals is much greater than that of the popular Ni-Cr-Mo (C-type) alloys, yet it shares with them the outstanding resistance to pitting and crevice attack in chloride salt solutions, and even withstands high levels of oxidizing impurities that the Ni-Mo alloys cannot cope with. 
HastelloyC-4 alloyHigh-temperature stability in the 1200-1900°F (650-1040°C) range as evidenced by good ductility and corrosion resistance. Virtually the same corrosion resistance as alloy C-276.
Hastelloy C-22 alloyBetter overall corrosion resistance in oxidizing corrosives than C-4, C-276 and 625 alloys. Outstanding resistance to localized corrosion and excellent resistance to stress corrosion cracking. Best alloy to use as universal weld filler metal to resist corrosion of weldments.
Hastelloy C-22 alloyThis alloys was designed to exhibit corrosion resistance comparable to other C-type alloys, but which can be heat treated to obtain approximately double the yield strength.
Hastelloy C-276 alloyVersatile, corrosion resistant alloy. Very good resistance to reducing, and mildly oxidizing corrosives. Excellent stress corrosion cracking resistance with very good resistance to localized attack.
Hastelloy C-2000 alloyMost versatile, corrosion resistant alloy with excellent resistance to uniform corrosion in oxidizing or re-ducing environments. Excellent resistance to stress corrosion cracking and superior resistance to localized corrosion as compared to C-276 alloy.
Hastelloy G-30 alloyMany advantages over other metallic and non-metallic materials in handling phosphoric acid, sulfuric acid, nitric acid, fluoride environments and oxidizing acid mixtures.
Hastelloy G-35 alloyExcellent resistance to corrosion in highly oxidizing media and acidic chloride environments.
Hastelloy N alloyGood resistance to aging and embrittlement and good fabricability. It has excellent resistance to hot fluoride salts in the temperature range of 1300°F to 1600°F (705°C-870°C).

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