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  • Hastelloy C 4 Low Carbon Nickel Molybdenum Chromium Alloy - China

    price: contact company for price

    Hastelloy C-4(UNS NO6455) Features and applications

    overview: The alloy is an austenitic low-carbon nickel-molybdenum-

    chromium alloy. The main difference between Nicrofer 6616 hMo and early

    developed alloy of similar chemical compositions is the low content of

    carbon, silicon, iron and tungsten. Such a chemical composition makes

    excellent stability at 650-1040°C, improves resistance to intergranular

    corrosion, and under appropriate manufacturing conditions avoids the

    corrosion of the edge line and of the weld heat affected zone. The alloy

    is applied in flue gas desulfurization system, pickling and acid

    regeneration plant, acetic acid and agrochemicals production, titanium

    dioxide production (chlorine), electrolytic plating, etc. Hastelloy C-

    4's similar grade: NS335(China) W.Nr.2.4610 NiMo16Cr16Ti(Germany)

    Chemical composition, % (GB/T14992-2005)

    Nickel........................................balance Chromium..................................14.5-

    17.5 Iron.............................................3.0 max Molybdenum...............................14.0-

    17.0 Cobalt.........................................2.0 max

    Carbon........................................0.009 max

    Manganese..................................1.0 max

    Silicon..........................................0.05 max

    Sulfur...........................................0.01 max

    Phosphorus...................................0.02 max

    Titanium..........................................0.7 max physical

    properties Density, g/cm3 ..........................8.6 Melting

    Range, °C................1335-1380 Thermal conductivity,

    λ/(W/m•°C), at 100°C .......10.1 Specific heat,

    J/kg•°C....................408 Elastic modulus,

    GPa.....................211 Electrical resistivity,

    μΩ•m.............1.24 Coefficient of linear expansion, a/10-6°C-

    1, at 20-100°C.............10.9 mechanical properties (the

    minimum value detected at room temperature) Tensile strength,

    σb/MPa....................690 Yield

    strength, σp0.2/MPa..............275 Elongation, σ5

    /%...................................40 The way of heat treatment is

    solution treatment

    Available products and specifications:

    Bar: ASTM B574, ASME SB574

    Forging: ASTM B336, ASME SB336

    Plate/Strip: ASTM B575, ASME SB575

    Pipe: ASTM B622, ASTM B619, ASTM B626, ASME SB622, ASME SB619, ASME626

    The metallurgical structure of Hastelloy C-4:

    Hastelloy C-4 is of the face-centered cubic lattice structure. Its chemical compositions ensure the stability and the allergy resistance of metallurgical structure.

    The process performance and requirements of Hastelloy C-4:

    1, The alloy cannot contact sulfur, phosphorus, lead and other low melting point metal during the heat treatment, otherwise the alloy becomes brittle. It should be noted to clear some contaminants such as marking and temperature-indicating paints, crayons, lubricating oil, and fuel. The content of sulfur in fuel should be kept as low as possible. The sulfur content of the gas should be less than 0.1%, and in heavy oil should be less than 0.5%. Electric furnace heating is a better choice, because the electric furnace's precise temperature control and the clean furnace gas. If the furnace gas is pure enough, gas furnace can be an alternate.

    2, The thermal processing temperature range of the alloy is 1080°C~900°C. The cooling method is water-cooling or other rapid cooling. To ensure the best performance of anti-corrosion, solution heat treatment should be carried out after the thermal processing.

    Hastelloy C 4 Low Carbon Nickel Molybdenum 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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