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  • Incoloy 825 Austenitic Nickel Iron Chromium Alloy - China

    price: contact company for price

    Incoloy825(UNS NO8825)austenitic nickel-iron-chromium

    alloy Features and applications overview: Incoloy825 is an common

    engineering alloy with resistance to acid and alkali metal corrosion

    under oxidization and reduction environment.

    High nickel content of the

    alloy ensures an effective resistance to stress-corrosion cracking.

    The

    alloy has good corrosion resistance in various media, such as sulfur

    acid, phosphoric acid, nitric acid and organic acids, alkali metals such

    as sodium hydroxide, potassium hydroxide and hydrochloric acid solution.

    The comprehensive performance of the alloy is showed in the nuclear

    burning dissolver in which there are various corrosive media, for

    example sulfuric acid, nitric acid and sodium hydroxide are dealt in the

    same device.

    Incoloy825 is applied in various industrial fields as the

    using temperature does not exceed 550°C, for example, the heating tubes,

    containers, baskets and chains of sulfur acid picking plant, seawater-

    cooled heat exchanger, marine products pipeline system, acidic gas

    environment pipe, the heat exchanger, evaporator, washing pipe and

    snorkel pipe used in the production of phosphoric acid, air heat

    exchanger in the oil refining, flame retardant alloy used in food

    engineering, chemical process, high-pressure oxygen.

    Incoloy825's

    similar grades: NS142(China), NC21FeDu (France), W.

    Nr.

    2.4858

    NiCr21Mo (Germany) NA16 (England) Chemical composition, %: Nickel.

    .

    38.0 -

    46.0 Chromium.

    .

    19.5-23 - 0

    Iron.

    .

    .

    balance.

    Molybdenum.

    .

    2.5-

    3.5 Carbon.

    .

    0.02 5 max

    Manganese.

    .

    1.0 max

    Silicon.

    .

    .

    0.5 max

    Sulfur.

    .

    .

    0.01 max

    Phosphorus.

    .

    0 - 02 max Copper.

    .

    1 - 5-

    3.0 Aluminium.

    .

    0.2 max Titanium.

    .

    0 - 6-

    1.2 Physical properties: Density, g/cm3 .

    .

    8.1

    Melting Range, °C.

    1370-1400 Thermal conductivity,

    λ/(W/m•°C), at 100°C .

    10.8 Specific heat,

    J/kg•°C.

    .

    440 Elastic modulus,

    GPa.

    .

    195 Electrical resistivity,

    μΩ•m.

    .

    1.37 Coefficient of linear expansion,

    a/10-6°C-1, at 20-100°C.

    14.1

    Mechanical properties: (the minimum value detected at room temperature)

    Tensile strength, σb/MPa.

    550

    Yield strength, σp0.2/MPa.

    250

    Elongation, σ5 /%.

    .

    35

    Brinell hardness, HBS.

    .

    ≥200

    The way of heat treatment is solution treatment

    Available products and specifications:

    Bar: ASTN B425, ASME SB425

    Plate/Strip: ASTM B424, ASME SB424

    Pipe: ASTM B423, ASTM B163, ASTM B704, ASTM B705, ASME SB423, ASME SB163.

    The metallurgical structure of Incoloy 825:

    Incoloy alloy 825 has a stable face-centered cubic lattice structure.

    The chemical compositions and appropriate thermal treatment ensure the corrosion resistance is not weakened by alloy's sensitization.

    The process performance and requirements of Incoloy 825:

    1, If there are sulfur, phosphorus, lead or other low melting point metal while heating, Nicrofer 6023/6023H alloy will become brittle.

    These impurities come from the marking paint, chalk, lubricants, water, fuel, etc.

    The sulfur content of the fuel should be low, for example, the sulfur content in liquefied gas and natural gas should be ideally less than 0.1%g/m3, in city gas less than 0.25g/m3 , in liquefied petroleum gas less than 0.5g/m3.

    2, The hot-working range for Incoloy alloy 825 is 900 to 1150°C.

    The cooling method is water cooling or rapid air cooling.

    3, Tungsten electrode inert gas welding, plasma arc welding, handmade sub-arc welding, metal inert gas welding and shielded metal-arc welding are all can be used.

    The pulsed arc welding is the preferred solution.

    Incoloy 825 Austenitic Nickel Iron Chromium Alloy

    Please inquiry for your need now


    Company Contact:


    • Phone: 8602169925078

    • Address: 1355#,Chengbei road, Jiading District, Shanghai, Shanghai , China

    • Email: Email

    Published date: October 18, 2012

    • Business Description: involved in international trade import export of goods, products, and services

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