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What material is Hastelloy C-276? Is the Hastelloy C-276 material good?

Views:1     Author:Ronsco     Publish Time: 2021-07-29      Origin:Ronsco

Product name: Hastelloy/C-276/UNS N10276


Internationally known as: Hastelloy, C-276, INCONEL Alloy C-276, HC-276, Hastelloy C-276, UNS N10276, W.-Nr. 2.4819, ATI C-276, Nicrofer 5716 hMoW-Alloy C-276, NAS NW276/ NiMo16Cr15Fe6W4


Executive 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 components: carbon (C) ≤ 0.01, manganese (Mn) ≤ 1.00, nickel (Ni) ≥ 57, silicon (Si) ≤ 0.08 phosphorus (P) ≤ 0.04, sulfur (S) ≤ 0.03, chromium (Cr) 14.5~ 16.5, iron (Fe) 4.0~7.0, molybdenum (Mo) 15.0~17.0, tungsten (W) 3.0~4.5, cobalt (Co) ≤2.5


Physical properties: C-276 density: 8.9g/cm3, melting point: 1325-1370 ℃, magnetism: none


Heat treatment: heat preservation between 1150-1175℃ for 1-2 hours, rapid air cooling or water cooling.


Mechanical properties: tensile strength: σb≥690Mpa, yield strength σb≥275Mpa: elongation: δ≥40%, hardness ≤100 (HRB)


Corrosion resistance and main use environment:


Hastelloy C-276 is a nickel-chromium-molybdenum alloy containing tungsten. It has a very low silicon-carbon content and is considered a universal anti-corrosion alloy. The alloy has the following characteristics: ①It has excellent corrosion resistance to most corrosive media in both oxidation and reduction atmospheres. ②It has excellent resistance to pitting, crevice corrosion and stress corrosion. The higher content of molybdenum and chromium makes the alloy resistant to chloride ion corrosion, and the tungsten element further improves the corrosion resistance. At the same time, C-276 alloy is one of the only materials that are resistant to corrosion by humid chlorine, hypochlorite and chlorine dioxide solutions, and has significant effects on high-concentration chloride solutions such as ferric chloride and copper chloride. Corrosion resistance. It is suitable for sulfuric acid solutions of various concentrations and is one of the few materials that can be applied to hot concentrated sulfuric acid solutions.


Supporting welding materials and welding process: Hastelloy C-276 welding material is selected from ERNiCrMo-4 welding wire and ENiCrMo-4 welding rod, the welding material size is Φ1.0, 1.2, 2.4, 3.2, 4.0, and the place of origin is: United States Hastelloy, United States SMC and Deutsche Nickel, welding process and instructions are welcome to call to obtain.


Stock situation: C-276 alloy plate stock size is 0.38mm-45mm, bar stock size is Φ12mm-Φ320mm, pipe fittings and others can be customized according to customer requirements. The material producing areas mainly include Hastelloy Haynes in the United States, SMC in the United States, ATI in the United States and ThyssenKrupp VDM in Germany. Provide original material certificate, customs declaration and certificate of origin.


The main product forms of Hastelloy C-276: Hastelloy C-276 seamless pipe, Hastelloy C-276 welded pipe, Hastelloy C-276 bar, Hastelloy C-276 plate, Hastelloy C- 276 coil, Hastelloy C-276 forging.


Application fields include: power plant desulfurization and denitrification environmental protection, petrochemical equipment, coal chemical industry, fluorine chemical industry, fine chemical industry, PTA, aviation manufacturing, offshore platform, seawater desalination, papermaking machinery, pharmaceutical equipment, heat exchange equipment, electrochemistry, metallurgy, nuclear energy, Industries and products such as chlor-alkali, shipbuilding, cement manufacturing, composite boards, acetic anhydride, salt and plate heat exchangers, bellows expansion joints, etc.


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