International name: Hastelloy C-276, INConEL, Alloy, C-276, HC-276, Hastelloy C-276, UNS N10276, W.-Nr. 2.4819, ATI C-276 5716, Nicrofer hMoW-Alloy C-276, NAS NW276
Implementation standards: ASTM, B575/ASME, SB-575, ASTM, B574/ASME, SB-574, ASTM, B622/ASME, SB-622, ASTM, B619/ASME, SB-619, ASTM, B366/ASME, SB-366, ASTM, B564/ASME, SB-564
Main component: C≤0.01, Mn≤1.00, Ni≥57, Si≤0.08 P≤0.04, S≤0.03, Cr 14.5～16.5, Fe 4.0～7.0, Mo 15.0～17.0, W 3.0～4.5, Co ≤2.5
Physical properties: C-276 density: 8.9g/cm3, melting point: 1325-1370 C: no magnetic
Heat treatment: keep warm for 1-2 hours between 1150-1175 degrees, quick air cooling or water cooling.
Mechanical properties: tensile strength: σb≥690Mpa, yield strength: σb≥275Mpa, elongation: δ≥40%, the hardness is less than or equal to 100 (HRB).
The corrosion resistance and the main use of the environment: Hastelloy alloy C-276 is a nickel chromium molybdenum alloy containing tungsten, it has very low silicon and carbon content. It is considered a universal corrosion resistant alloy. The alloy has the following characteristics: ① In the oxidation and reduction state, it has excellent corrosion resistance for most corrosive media. ② It has excellent resistance to pitting corrosion, crevice corrosion and stress corrosion resistance. High molybdenum, chromium content make alloy resist chloride ion corrosion, tungsten element enhanced the corrosion resistance. At the same time, C-276 alloy is one of corrosion materials to wet chlorine, hypochlorite and chlorine dioxide solution, it has significant corrosion resistance to high concentration chloride salt solution such as ferric chloride and chloride copper. It is applicable to various concentrations of sulfuric acid solution, and it is one of the materials, which can be used in hot concentrated sulfuric acid solution.
Application area: Power plant desulfurization denitration environmental protection, petrochemical equipment, coal chemical industry, fluorine chemical industry, fine chemical industry, PTA, aviation, marine platform, seawater desalination, papermaking machinery, pharmaceutical equipment, heat transfer equipment, electrochemistry, metallurgy, nuclear power, shipbuilding, chlor alkali, cement manufacturing, composite plate, acetic acid, acetic anhydride, salt and heat exchanger, bellows and other industries and products.
