ALLOY CHARACTERISTICS HASTELLOY® alloy B-2 is a nickel-base wrought alloy with excellent resistance to hydrochloric acid at all concentrations and temperatures. It also withstands hydrogen chloride, sulfuric, acetic and phosphoric acids. The alloy has excellent resistance to pitting, to stress-corrosion cracking and to knifeline and heat-affected zone attack. It resists the formation of grain-boundary carbide precipitates ir the weld heat-affected zone, thus making it suitable for most chemical process applications in the aswelded condition. Ask for Bulletin H-2006 HASTELLOY® alloy C-22 - a versatile nickelchromium-molybdenum alloy with better overall corrosion resistance than other Ni-Cr-Mo alloys available today, including HASTELLOY alloy C-276 and C-4 and CABOT alloy No. 625. Alloy C-22 has outstanding resistance to pitting, crevice corrosion and stress-corrosion cracking. It has excellent resistance to oxidizing aqueous media including acids with oxidizing agents, wet chlorine and mixtures containing nitric acids or oxidizing acids with chloride ions. HASTELLOY alloy C-22 has outstanding resistance to both reducing and oxidizing media and because of its versatility can be used where "upset" conditions are likely to occur or in multipurpose plants. Alloy C-22 also has exceptional resistance to a wide variety of chemical process environments, including strong oxidizers such as ferric and cupric chlorides, hot contaminated media (organic and inorganic), chlorine, formic and acetic acids, acetic anhydride, and seawater and brine solutions. Ask for Bulletin H-2019 HASTELLOY® alloy C-276 has excellent resistance to pitting, stress-corrosion cracking, and oxidizing atmospheres up to 1900 deg. F (1038 deg. C). It has exceptional resistance to a wide variety of chemical process environments, including strong oxidizers such as ferric and cupric chlorides, hot contaminated media (organic and inorganic), chlorine, formic and acetic acids, acetic anhydride, and seawater and brine solutions. It resists the formation of grain-boundary precipitates in the weld heat-affected zone. Therefore, it too is suitable for most chemical process applications in the aswelded condition. Ask for Bulletin H-2002 Alloy G-3 has excellent resistance to mixed acids, sulfate compounds, contaminated nitric acid, wet flue-gas desulfurization scrubber environments and hydrofluoric acid. The alloy's resistance to the formation of grain-boundary precipitates in the heat-affected zone makes it suitable for use in most chemical process applications in the as-welded condition. Ask for Bulletin H-2009 HASTELLOY® alloy G-30 - a high chromium nickelbase alloy shows superior corrosion resistance ov~r most other nickel- and iron-base alloys In commercial phosphoric acid and many complex environments containing highly oxidizing agents such as nitric acid. Ask for Bulletin H-2028 HASTELLOY® alloy X is a nickel-chromium-ironmolybdenum alloy which has wide use in gas turbine engines for combustion zone components because of its exceptional combination of oxidation resistance, fabricability and high-temperature strength. It is also used in the chemical process industry for retorts, muffles, catalyst support grids, furnace baffles, tubing for pyrolysis operations and flash drier components. Ask for Bulletin H-3009 HAYNES® alloy No. 25 is a cobalt-base alloy which combines good formability, wear and corrosion resistance with excellent high-temperature properties to 1900 deg. F (1038 deg. C). Alloy No. 25 is generally stronger than alloy X but is not quite as oxidation resistant. Ask for Bulletin F-30,041 CABOT~ alloy No. 625 is a nickel-chromiummolybdenum alloy with excellent corrosion resistance, high strength and oxidation resistance. It is resistant to a wide variety of corrosive media including phosphoric acid, organic acids, seawater and pollution control environments. Alloy No. 625 also resists stress-corrosion cracking, pitting and intergranular attack. It has high strength up to approximately 1800 deg. F (980 deg. C) coupled with good resistance to oxidizing atmospheres. Ask for Bulletin H-1019 HASTELLOY® alloy G-3 is an improved wrought version of HASTELLOY alloy G. Alloy G-3 has the same excellent general corrosion resistance as alloy G, along with greater resistance to heat-affected zone attack and excellent weldability. It has outstanding resistance to hot sulfuric and phosphoric acids, and withstands the corrosive effects of both oxidizing and reducing agents and can handle both acid and alkaline solutions. 4 MULTIMET® alloy is an iron-base alloy for use in applications involving high stresses at temperatures up to 1500 deg. F (816 deg. C), and moderate stresses at up to 2000 deg. F (1093 deg. C). It has good oxidation resistance, ductility and is readily fabricated. Its high-temperature properties are inherent and are not dependent upon age hardening. Ask for Bulletin H-3010
'A~0~A~~ Alloy / q,~ "'.>~~~Cfj 0.51 to 1.27mm) penetration per year U Unsatisfactory More than 50 mils (1.27mm) penetration per year No Data 5
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