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Seamless Inconel625 stainless steel tubes. Similar grades to Inconel625: GB/T, UNS Nr, Trademark, JIS NS336, NO6625, 2.4856. ALLOY 625, NCF625. Chemical composition of Inconel625: Elements C, Si, Mn, Cr, Ni, S, P, Co, Fe, Nb, Al, Mo, Ti; contents: ≤0.1, ≤0.5, ≤0.5, 20.0–23.0, ≥58.0, ≤0.015, ≤0.015, ≤1.0, ≤5.0, 3.15–4.15, ≤0.4, 8.0–10.0, ≤0.4. Mechanical properties of Inconel625: In solution-treated state – Tensile strength: ≥690, Yield strength: ≥276, Elongation: ≥30%, Hardness: HB ≤220; After annealing – Tensile strength: ≥827, Yield strength: ≥414, Elongation: ≥30%. Physical properties of Inconel625: Density: 8.44 g/cm3, Melting point: 1290°C–1350°C. Product characteristics of seamless Inconel625 stainless steel tubes: 1. Excellent corrosion resistance against various corrosive agents in oxidizing and reducing environments. 2. Good resistance to pitting and crevice corrosion, without the risk of chloride-induced stress corrosion cracking. 3. Strong resistance to corrosion by inorganic acids such as nitric acid, phosphoric acid, sulfuric acid, hydrochloric acid, and mixed acids of sulfuric and hydrochloric acids. 4. Good resistance to corrosion in various mixed inorganic acid solutions. 5. Maintains good corrosion resistance in hydrochloric acid solutions of various concentrations at temperatures up to 40°C. 6. Good workability and weldability, with no tendency to crack after welding. 7. Certified for use in pressure vessels with wall temperatures ranging from -196°C to 450°C. 8. Approved according to NACE standards (MR-01-75) by the American Society of Corrosion Engineers, meeting the highest grade VII for use in acidic gas environments. Application areas of Inconel 625 stainless steel seamless tubes: The low-carbon alloy 625 after soft annealing is widely used in the chemical processing industry; its good corrosion resistance and high strength enable it to be used as thin structural components. 625 alloy can be used in applications that are exposed to seawater and subject to high mechanical stresses. Typical application areas: 1. Components in organic chemical processes involving chlorides, especially in cases where acidic chloride catalysts are used. 2. Cookers and bleaching tanks in the pulp and paper industry. 3. Absorption towers, reheaters, flue gas inlet dampers, fans (wet type), agitators, guide vanes, and flues in flue gas desulfurization systems. 4. Equipment and components designed for use in environments with acidic gases. 5. Reactors for the reaction between acetic acid and acetic anhydride. 6. Sulfuric acid condensers