C-22|N06022

Product Origin:USA (Haynes), USA (SMC), USA (ATI), Germany (VDM), Japan (JYK)

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 Composition:Carbon (C) ≤ 0.015, Manganese (Mn) ≤ 0.50, Nickel (Ni) ≥ 56, Silicon (Si) ≤ 0.08, Vanadium (V) ≤ 0.35, Sulfur (S) ≤ 0.02, Chromium (Cr) 20.0-22.5, Iron (Fe) 2.0-6.0, Molybdenum (Mo) 12.5-14.5, Tungsten (W) 2.5-3.5, Cobalt (Co) ≤ 2.5

Physical Properties:Carbon (C) ≤ 0.015, Manganese (Mn) ≤ 0.50, Nickel (Ni) ≥ 56, Silicon (Si) ≤ 0.08, Vanadium (V) ≤ 0.35, Sulfur (S) ≤ 0.02, Chromium (Cr) 20.0-22.5, Iron (Fe) 2.0-6.0, Molybdenum (Mo) 12.5-14.5, Tungsten (W) 2.5-3.5, Cobalt (Co) ≤ 2.5

Mechanical Properties:Tensile Strength: σb ≥ 660 MPa, Yield Strength σb ≥ 240 MPa, Elongation: δ ≥ 40%, Hardness ≤ 100 (HRB)

Corrosion Resistance:Alloy C-22, with its controlled content of chromium, molybdenum, and tungsten, exhibits corrosion resistance to both oxidizing and reducing acids, as well as mixed acids. It is particularly suitable for resisting pitting and crevice corrosion in acidic halide environments. Nickel-chromium-molybdenum alloy C-22, like C-276, contains tungsten and extremely low levels of carbon and silicon. It shares the same characteristics: 1. Excellent corrosion resistance to most corrosive media in both oxidizing and reducing states; 2. Outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking. Alloy C-22 is a universal nickel-chromium-molybdenum-tungsten alloy that offers better overall corrosion resistance than other existing nickel-chromium-molybdenum alloys, including C-276, C-4 alloy, and Alloy 625. It demonstrates excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. It exhibits exceptional resistance to oxidizing aqueous media, including wet chlorine, nitric acid, or mixed acids containing chloride ions. Additionally, C-22 alloy possesses ideal resistance to both reducing and oxidizing environments encountered during processes. With its versatile performance, it can be used in challenging environments or multifunctional facilities. C-22 alloy offers exceptional resistance to various chemical environments, including highly oxidizing substances such as ferric chloride, cupric chloride, chlorine, hot polluted solutions (both organic and inorganic), formic acid, acetic acid, CU acetic anhydride, seawater, and saline solutions.

Applications:Desulfurization and denitrification in power plants, petrochemical equipment, coal chemical industry, fluorine chemical industry, fine chemical industry, PTA, aerospace manufacturing, marine platforms, seawater desalination, papermaking machinery, pharmaceutical equipment, heat exchange equipment, electrochemistry, metallurgy, nuclear energy, chlor-alkali, shipbuilding, cement manufacturing, composite boards, acetic acid and acetic anhydride, salt making, plate heat exchangers, bellows expansion joints, etc.

Matching Welding Materials:ERNiCrMo-10 welding wire, ENiCrMo-10 welding rod. Welding material sizes available in Φ2.0, 2.4, 3.2, 4.0.

Supply Forms:Plates, strips, bars, wires, forgings, rods, welding materials, flanges, etc. Custom processing according to drawings is available. Feel free to contact us for inquiries.