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C-276 Hastelloy alloy belongs to the nickel-molybdenum-chromium-iron-tungsten nickel-based alloy, which is the most corrosion-resistant one among modern metal materials. It is mainly resistant to wet chlorine, various oxidizing chlorides, chloride salt solutions, sulfuric acid and oxidizing salts, and has good corrosion resistance in low-temperature and medium-temperature hydrochloric acid. Therefore, in the past thirty years, Hastelloy C276 / N10276 has been widely used in harsh corrosive environments such as chemical industry, petrochemical industry, flue gas desulfurization, pulp and papermaking, environmental protection and other industrial fields.
pplication scope of C-276 Application fields are:
C276 alloy has been widely used in the chemical and petrochemical fields, such as in components and catalytic systems that come into contact with chloride-containing organic matter. This material is particularly suitable for use in high temperature, inorganic and organic acids mixed with impurities (such as formic acid and acetic acid), and seawater corrosion environments.
The following table shows the corrosion comparison test results of four alloys in different environments. (All welding samples were welded by self-fluxing tungsten inert gas arc welding)
Chemical composition
Ni Cr Mo Fe C Si Co Mn P S W V
N10276 (C-276) base 14.5~16.5 15.0~ 17.0 4.0~7.0 ≤0.01 ≤0.08 ≤2.5 ≤1.0 ≤0.04 ≤ 0.03 3.0~ 4.5 ≤0.035
