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  • 800H alloy and its properties

    The 800 series alloy is a nickel-chromium-iron corrosion-resistant alloy developed by Inco-corporation of the United States in 1949. The early alloy grade was Incoloy800. Incoloy800H referred to as 800H is developed on the basis of Incoloy800 alloy, which is equivalent to the high carbon type NS1...
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  • C-276 alloy and hastelloy C alloy

    C-276 alloy is an important nickel-based corrosion-resistant material. Because it contains about 16% (mass fraction) of Mo and Cr, it has strong resistance in both oxidizing and reducing media. It is called a general-purpose corrosion-resistant alloy. Compared with general stainless steel and oth...
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  • Corrosion resistance of 825 alloy

    Alloy 825 is a solid solution strengthened nickel-based corrosion-resistant alloy that may precipitate carbides at the grain boundaries during hot processing or during heat treatment. These carbides adversely affect the corrosion resistance of Alloy 825. The SR101 reactor of a domestic perfumery ...
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  • Weldability of Alloy 825

    825 alloy is a kind of austenitic metal material containing less AL and Ni-Cr-Fe. It has corrosion resistance, high strength, high temperature oxidation resistance and good weldability. When 825 alloy is welded, since S, P and other impurities are segregated in the weld metal, the Ni-NiS low-melt...
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  • Hot workability of 825 alloy

    The 825 alloy has a narrow thermoforming section and high deformation resistance. The 825 alloy was subjected to hot compression and hot tensile tests. It was found that the section shrinkage of the 825 alloy during hot stretching increased first and then decreased with increasing stretching temp...
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  • Alloy 825 breif

    Alloy 825 is a nickel-iron-chromium solid solution strengthening alloy invented by Inco Corporation with molybdenum, copper and titanium. It was developed for use in both reducing and oxidizing media. The alloy has resistance to chloride ion stress corrosion cracking, resistance to pitting, crevi...
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  • Atmospheric corrosion—serier All-round corrosion (1)

    In the atmosphere, Ni68Cu28Fe (Monel 400) alloy has extremely high corrosion resistance and is an extremely corrosion resistant alloy. Figure 5-17 shows the results of a 20-year test conducted under atmospheric conditions in different parts of the United States. The 20-year test results in the ma...
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  • Monel 400 materials chemical properties

    Ni68Cu28Fe (Monel 400) is the first nickel-corrosion resistant alloy used in industry. Due to its good comprehensive performance, it has the largest amount of application, the widest application range, and has achieved good use effect, becoming an indispensable corrosion resistance. Structural ma...
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  • Induction heating reaming

    Induction heating is a method of using a principle of electromagnetic induction to place a billet in an alternating magnetic field to generate an induced current inside, thereby generating Joule heat to heat the billet. Induction heating has many advantages: first, the energy consumption is low, ...
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  • Production process of nickel-based alloy pipe

    The nuclear steam generator heat transfer tubes are seamless tubes. Because the seamless tubes are integrally formed and have no welded joints, their pressure resistance and corrosion resistance are much better than welded tubes and become the preferred pipe for pressure pipes. Generally speaking...
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  • Hot extrusion technology of seamless steel tube

    When producing seamless steel tubes by hot extrusion, the tube blank must be a hollow billet. One is a hollow blank in which a forged billet or a billet is made into a hole, and the other is a hollow billet which is centrifugally cast. Perforation of billet or billet, depending on the type of ste...
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  • Hot extrusion of steel pipes

    Hot extrusion is extrusion at temperatures above the recrystallization temperature. Hot extrusion technology for steel materials The rapid development was achieved after the invention of the glass lubricant extrusion method by J. Sejournet of France in 1941. When hot-squeezing steel materials, in...
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  • Extrusion characteristics of nickel-based alloy

    The production of pipes is often extruded. From the international point of view, there has been a deep research on the extrusion of soft metals such as Mg, Al, Cu, etc. In about 1797, the British Braman designed. The world’s first mechanical extruder for lead extrusion has been patented. Fr...
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  • Hot extrusion

    Extrusion is the application of an external force to a metal blank placed in a container (squeezing cylinder) to flow out of a specific die hole to obtain a desired cross-sectional shape and size – mainly for stainless steel, nickel-based superalloys and hard The bar, tube and profile of th...
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  • C-276alloy

    C-276 alloy is an important nickel-based corrosion-resistant material. Because it contains about 16% (mass fraction) of Mo and Cr, it has strong resistance in both oxidizing and reducing media. It is called a general-purpose corrosion-resistant alloy. Compared with general stainless steel and oth...
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  • 825alloy

    Alloy 825 is a nickel-iron-chromium solid solution strengthening alloy invented by Inco Corporation with molybdenum, copper and chin. It was developed for use in both reducing and oxidizing media. The alloy has resistance to chloride ion stress corrosion cracking, resistance to pitting, crevice c...
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  • Effect of chromium on corrosion resistance of nickel

    Figure 6-2 shows the effect of chromium on the constant potential anodic polarization of nickel. As the chromium content increases, the critical passivation current and the blunt current of the alloy decrease, and the passivation zone becomes wider, indicating that the corrosion resistance of nic...
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  • Ni-Cr Alloy

    The addition of chromium improves the corrosion resistance of nickel in oxidizing media, including oxidizing acids (HNO3,H2CrO4,H3PO4), oxidizing acid salts, and oxidizing alkaline salts. When the alloy contains more than 10% chromium, the corrosion resistance and oxidation resistance of the nick...
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  • Pure Nickel

    A silver-white transition metal with a glossy right is one of the elements with strong ferromagnetism at room temperature (the other two elements are iron and cobalt). In the entire temperature range below the melting point, the crystal structure of nickel is face centered cubic (fcc), and the la...
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  • Corrosion resistance of Ni200 and Ni20

    In the indoor atmosphere, Ni200 and Ni201 generally maintain a bright metallic luster. In the outdoor atmosphere, corrosion is slow due to a thin protective film on the surface. However, in the S02 industrial atmosphere, the corrosion rate increases with the increase of S02 content, and their cor...
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  • Pure nickel 200 and Pure nickel 201

    Pure nickel is a silver-white transition metal with a metallic luster and is one of the elements that have strong ferromagnetism at room temperature (the other two elements are iron and diamond). In the entire temperature range below the melting point, the crystal structure of nickel is face-cent...
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  • SCC in high temperature pure water

    In 1960 H. Coriou and his colleagues first announced that Inconel 600 alloy produces intergranular stress corrosion in degassed high-temperature pure water. The authenticity of the Inconel 600 alloy has been questioned for more than 20 years, and eventually the water in the nuclear power plant is...
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  • Caustic Stress Corrosion of Nickel Base and Iron-Nickel Base Corrosion Alloys

    In the caustic environment of NaOH aqueous solution, Ni-Cr alloy and Ni-Fe-Cr alloy have good stress corrosion resistance. Under a given medium, the stress corrosion behavior of the alloy is affected by the content of Cr and Ni in the alloy. Heat treatment conditions are constrained. The test res...
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  • Stress corrosion

    Nickel-base and iron-nickel-based corrosion-resistant alloys have been successfully applied in some dangerous service conditions because of their good stress corrosion resistance, good manufacturing performance, good toughness, and wide applicability to corrosive environments. However, in a wide ...
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  • Welding tubes process for welded tubes

    Welding tubes process for welded tubes We do welded tubes add-valuled process. http://www.shangdunmetals.com/uploads/c8c86c69.m4v
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  • Selection of welding methods

    Selection of welding methods : Various welding methods have different characteristics in terms of heating, process, operation, and economy. When welding stainless steel, various welding methods should be used according to the physical properties of various materials, metallurgical properties, and...
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  • Undertake non-standard equipment welding

    We undertake non-standard equipment welding,developing from single pipe line products to combining piping and fittings,welding parts together.
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  • Puncture corrosion and crevice corrosion

    Puncture corrosion and crevice corrosion are commonly encountered localized corrosion. After the point corrosion and crevice corrosion environments are determined, the alloy’s resistance to such localized corrosion depends on the composition of the alloy. Chromium and molybdenum play the mo...
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  • Ni-Mo alloy

    The typical representative of Ni-Mo alloy is Hastelloy B with 28% Mo. Since its application in the industry in 1929, its weldment has appeared near the weld seam. J mouth corrosion, and intergranular corrosion in the heat affected zone (HAZ). The phenomenon of welding deterioration seriously affe...
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  • Ni-Cr-Mo alloy

    Ni-Cr-Mo type corrosion-resistant alloy, which is resistant to both reducing medium and oxidizing medium, is a kind of corrosion-resistant alloy system with wide applicability. Among the most representative and widely used alloys of this type are Hastelloy® c with 16 070 Mo, introduced in the 193...
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  • Intergranular corrosion of Ni-Cr alloy

    The commonly used Ni-Cr alloy is the more widely used Inconel 600. The sensitizing temperature range of this alloy is very wide. At 300-850°C, Cr23c6 is precipitated. The intermetallic corrosion of Inconel 600 with a carbon content of only 0.017% is related to the sensitization temperature and ti...
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  • Crystal corrosion

    Intergranular corrosion is a type of corrosion that occurs in a narrow area between grains of a metallic material and is a type of localized corrosion. Early nickel-base and iron-nickel-based corrosion-resistant alloys were almost completely corroded. In the middle of the 20th century, the corros...
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  • nickel and its corrosion resistant alloys in high temperature HCI gas—full corrosion (7)

    The characteristics of HCI are similar to those of dry CI. There is also a critical temperature that causes the corrosion rate of metal materials to increase sharply. For some corrosion test data, see Table 2-27, Table 2-28, and Table 2-29. Combining these corrosion data, it can be considered tha...
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  • Overall corrosion of nickel and its corrosion resistant alloys in high temperature hydrogen fluoride—full corrosion (6)

    HF gas is a common medium for certain chemical processing. In high temperature hydrogen fluoride, Ni201, monel400, inconel 600, C-276 and 00Cr16Ni65Mo2Ti alloys all have suitable corrosion resistance, and have been successfully applied to practical engineering. Some corrosion test data are shown ...
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  • Overall corrosion of nickel and its corrosion resistant alloys at high temperature F, CI −, HCI, HF, and BrF5 High-temperature fluorine—full corrosion (5)

    Fluorine is the most powerful and most active halogen element. Its strongest oxidation potential makes it form compounds with all common elements. This property determines that it can react directly with the metal to form metal fluorides. The properties of the fluoride protective film are directl...
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  • Corrosion in phosphoric acid—full corrosion (3)

    Phosphoric acid is a kind of reducing inorganic acid, also called non-oxidizing acid. Its corrosiveness to the material depends on the type of phosphoric acid. Phosphoric acid and wet-process phosphoric acid are two types of phosphoric acid currently used in industrial applications. The former is...
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