HASTELLOY® C-2000® alloy is unique among the versatile nickel-chromium-molybdenum materials in having a deliberate copper addition. This provides greatly enhanced resistance to sulfuric acid. It also has a high chromium content, to maximize its resistance to oxidizing chemicals and process streams contaminated with ferric ions and dissolved oxygen.
HASTELLOY® G-30® alloy is a nickel-chromium-iron material highly resistant to “wet process” phosphoric acid (P2O5). P2O5 is one of the most important industrial chemicals, being the primary source of phosphorus for agrichemical fertilizers. G-30® alloy is also moderately resistant to chloride-induced localized attack. Furthermore, G-30® alloy is less susceptible to chloride-induced stress corrosion cracking than the stainless steels.
HASTELLOY® G-35® alloy was developed to resist “fertilizer-grade” phosphoric acid (P2O5), which is used in the production of fertilizers. Tests in real-world solutions indicate that G-35® alloy is far superior to other metallic materials in this acid. It was also designed to resist localized attack in the presence of chlorides, since this can be a problem beneath deposits in evaporators used to concentrate “fertilizer-grade” phosphoric acid. Furthermore, G-35® alloy is much less susceptible to chloride-induced stress corrosion cracking than the stainless steels and nickel-chromium-iron alloys traditionally used in “fertilizer-grade” phosphoric acid.
HYBRID-BC1® alloy possesses much higher resistance to hydrochloric, hydrobromic, and sulfuric acids than the nickel-chromium-molybdenum (C-type) alloys, and can tolerate the presence of oxidizing species. The alloy also exhibits extremely high resistance to pitting and crevice corrosion.
ULTIMET® alloy provides many of the corrosion characteristics of the nickel-based HASTELLOY® G-type alloys and many of the wear characteristics of the cobalt-based STELLITE® alloys, in a single, highly weldable material. It excels under conditions conducive to galling and cavitation erosion.
HAYNES® 230® alloy
HAYNES® 230® alloy is a nickel-chromium-tungsten-molybdenum alloy that offers the best combination of high- temperature strength, resistance to oxidizing environments up to 2100°F (1149°C) for prolonged exposures, excellent long-term thermal stability, and fabricability of any major high-temperature alloy. It is used for combustion cans, transition ducts, flame holders, thermocouple sheaths, and other important gas turbine components.
HAYNES® HR-120® alloy
HAYNES® HR-120® alloy offers very good creep strength to 1800°F (980°C), together with good resistance to several industrial environments (e.g. excellent carburization and very good sulfidation and oxidation resistance). This economical alloy has found use in large frame engine shrouds, as well as use in heat treating fixture and industrial heating applications as an upgrade from 330 alloy, 800H alloy and stainless steels.
HAYNES® HR-160® alloy
HAYNES® HR-160® alloy has outstanding resistance to sulfidation and other high-temperature aggressive environments. Used in waste incineration, boiler, high-temperature reaction vessel and rotary calciner applications.
HAYNES® HR-235® alloyHASTELLOY® C-276 alloy
HAYNES® HR-235® is a high-chromium, copper-bearing nickel alloy that has excellent resistance to metal dusting in carbonaceous high-temperature environments. Potential uses include applications in petrochemical production and syngas plants. Similar to other nickel-based corrosion resistant alloys, the alloy is readily fabricated and welded.
HASTELLOY® C-276 alloy is the first wrought, nickel-chromium-molybdenum material to alleviate concerns over welding (by virtue of extremely low carbon and silicon contents). As such, it was widely accepted in the chemical process and associated industries, and now has a 50-year-old track record of proven performance in a vast number of corrosive chemicals.