There are many types of Hastelloy valves such as Hastelloy B2, Hastelloy B3, Hastelloy C22, and Hastelloy C276. Hastelloy series alloys UNS are also known as N10665, N10276, N06022, N10675, N06455. The DIN specifications are 2.4617, 2.4600, 2.4602, 2.4819. The most common form of cast Hastelloy used for valves is the A494 CW12MW and A494 CX-2MW.
Alloy C-276 Valve is broadly utilized in the most extreme environments such as chemical preparing, contamination control, mash, and paper generation, mechanical and metropolitan squander treatment, and recuperation of acrid normal gas. The high nickel and molybdenum substance make the nickel steel amalgam particularly resistant to pitting and hole corrosion in reducing situations whereas chromium passes on resistance to oxidizing media.
Alloy C22 Valve also known as Hastelloy C22 Valve, could be a versatile austenitic nickel-molybdenum-chromium-tungsten mixture with upgraded resistance to crevice erosion, setting and stress erosion cracking. Hastelloy B2 Valve could be a solid solution reinforced, nickel-molybdenum alloy, with significant resistance to decreasing environments like hydrogen chloride gas, and sulfuric, acidic, and phosphoric acids. Molybdenum is the essential alloying component that gives significant corrosion resistance to decreasing environments.
Due to their excellent corrosion resistance, Hastelloy valves are widely used in the chemical, desalination, petrochemical, biotech valves, and pharmaceutical industry.
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