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  • Incoloy 800ht Super Alloy - China

    price: contact company for price

    Incoloy 800HT(UNS NO8811) Features and applications

    overview: The alloy is resistant to many corrosive media. Its higher

    nickel content makes it has a good resistance to stress corrosion

    cracking in aqueous corrosion conditions. It has better resistance to

    pitting corrosion and crevice corrosion cracking because of the high

    chromium content. The alloy has good resistance to nitric acid, organic

    acid corrosion, but limited corrosion resistance to sulfur acid and

    hydrochloric acid. The alloy has good corrosion resistance in oxidizing

    and non-oxidizing salts except slight corrosion occurs in halides. Also

    it has good corrosion resistance in a mixture of water, smoke, steam,

    air and carbon dioxide. The alloy is applied to the condenser nitrate,

    nitric acid corrosion resistance, steam heating pipe and the heating

    element tube. Incoloy800HT's similar grade:

    W.Nr.1.4958(Germany)

    Chemical composition, %

    Nickel........................................30.0-35.0

    Chromium..................................19.0-23.0

    Iron.............................................39.5 max

    Carbon........................................0.06-0.1

    Manganese..................................1.5 max

    Silicon..........................................1.0 max

    Sulfur...........................................0.015 max

    Copper..........................................0.75 max

    Aluminium....................................0.15-0.60

    Titanium........................................0.15-0.60

    Physical properties:

    Density, g/cm3 ............................8.0

    Melting Range, °C.....................1350-1400

    Thermal conductivity,

    λ/(W/m•°C), at 100°C ...........11.6

    Specific heat, J/kg•°C.................455

    Elastic modulus, GPa................198

    Electrical resistivity, μΩ•m...........0.98

    Coefficient of linear expansion,

    a/10-6°C-1, at 20-100°C.............14.4

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

    Tensile strength, σb/MPa................450

    Yield strength, σp0.2/MPa..........180

    Elongation, σ5 /%................................35

    The way of heat treatment is solution treatment

    Available products and specifications:

    Bar: ASTM B408, AMS 5766, ASME SB408

    Forging: ASTM B564, ASME SB564

    Plate/Strip: ASTM B409, AMS 5871, ASME SB409

    Pipe: ASTM B407, ASTM B163, ASTM B514, ASTM B515, ASME SB407, ASME SB163, ASME SB514, ASME SB515.

    The metallurgical structure of Incoloy 800HT:

    Incoloy 800HT is of the face-centered cubic lattice structure. Very low carbon content and improved ratio of Ti:C enhance the stability of the structure and allergy resistance as well as resistance to intergranular corrosion. The low temperature annealing around 950°C ensures the fine grain structure.

    The process performance and requirements of Incoloy 800HT:

    1, The alloy is suitable for both hot processing and cold processing. However, due to having a high strength, it requires high- power processing equipment.

    2, The thermal processing range of the alloy is 1200°C-900°C. The cooling method is water quenching or rapid cooling 760-540°C. Thermal bending is conducted between 1000 to 1150°C.

    3, Incoloy alloy 825HT has good weldability by all conventional processes, such as tungsten electrode inert gas welding, plasma arc welding, hand-sub-arc welding, metal inert gas welding, metal inert gas shielded arc welding, protective gas arc welding, and so on.

    Incoloy 800ht Super 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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