Incoloy 825 Hex Nuts is a nickel-iron-chromium alloy with molybdenum and copper added, known for its excellent resistance to a variety of corrosive environments. UNS N08825 is the Unified Numbering System designation for this particular alloy. It offers high corrosion resistance in both reducing and oxidizing environments, making it particularly suitable for applications in chemical processing, petrochemical industry, and marine environments.

Hex nuts made from Incoloy 825 (UNS N08825) are used in various applications where corrosion resistance and high-temperature strength are required. These nuts are designed to be compatible with Incoloy 825 bolts or other fasteners made from the same material. They provide a secure and reliable fastening solution in aggressive and demanding environments.

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Incoloy 825 Hex Nuts
  • UNS


  • WNR



    ASTM B425 / SB425


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Here are some key features and applications of Incoloy 825 hex nuts:
Corrosion Resistance: Incoloy 825 hex nuts exhibit outstanding resistance to various corrosive media, including sulfuric acid, phosphoric acid, nitric acid, and seawater.
High-Temperature Strength: They maintain their mechanical properties at elevated temperatures, making them suitable for high-temperature applications.
Excellent Weldability: Incoloy 825 can be readily welded and used in combination with other materials.
Good Mechanical Properties: This alloy offers good strength and durability.

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fevicon-logo Incoloy 825 Hex Nuts Specification

SpecificationsASTM B425 / ASME SB425
Size Cold Forming process: M2-M24
Hot Forging process: M24-M100, 1-1/2” Dia, up to 1100mm lg
CNC Machining for M100 / 4” Dia, up to 1500mm lg
Manufacturing M2, M3, M3.5, M4, M5, M6, M8, M10, M12, M14, M16, M18, M20, M22, M24, M27, M30, M33, M36, M42, M45, M48 to M160 and Custom Metric Incoloy Hex Nuts
Diameter1/4 "-3" Metric:M3 to M72
Types Heavy Hex Nuts, Large Heavy Hex Nuts, Heavy Hex Jam Nut, Heavy Hex Coupling Nut, Heavy Duty Hex Nuts
DIN Standard DIN 934, DIN 982, DIN 985, DIN 936, DIN 929, DIN 1587, DIN 439, DIN 315
DimensionsASME B18.2.2 Heavy Hex Nuts, ASME B18.2.4.6M Metric Heavy Hex Nuts, ASME B18.16.6 / ASME B18.16.4 / ASME B18.2.2
ThreadsMETRIC, BSW, UNC, UNF, BSF or as required
Hex Nuts FormingHot Forged Hex Nuts & Cold Forged Hex Nuts
UTS – Unified Thread StandardUNC, UNF, NPT, UNS, UNEF, NPTF

Chemical Processing: Incoloy 825 hex nuts are commonly used in chemical plants, where they come into contact with corrosive chemicals and acids.
Oil and Gas Industry: They find applications in the oil and gas sector, including offshore drilling platforms, due to their resistance to seawater and other aggressive environments.
Pollution Control Equipment: Incoloy 825 is used in pollution control equipment where resistance to acid gases and other pollutants is required.
Heat Exchangers: It is employed in heat exchangers for its resistance to high-temperature and corrosive conditions.

When using Incoloy 825 hex nuts, it's essential to follow the appropriate guidelines for fastener selection, installation, and maintenance to ensure the desired performance and longevity in your specific application. Additionally, you should consult the manufacturer or supplier for specific information and recommendations regarding Incoloy 825 fasteners.

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fevicon-logo Equivalent Grades Of Incoloy 825 Hex Nuts

Incoloy 825 2.4858 N08825 NCF 825 NA 16 ЭП703 NFE30C20DUM NiCr21Mo XH38BT

fevicon-logo Chemical Composition of Incoloy 825 Hex Nuts

Grade C Mn Si Cu S Fe Ni Cr AI Ti
Incoloy 825 0.05 max 1.00 max 0.5 max 1.50 – 3.00 0.03 max 22.00 min 38.00 – 46.00 19.50 – 23.50 0.02 max 0.06 – 1.20

fevicon-logo Mechanical Properties of Incoloy Alloy 825 Hex Nuts

Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
825 8.14 g/cm3 1400 °C (2550 °F) Psi – 80,000 , MPa – 550 Psi – 32,000 , MPa – 220 30 %

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fevicon-logo Types of Incoloy 825 Hex Nuts

Hex Nuts

Incoloy 825 Hexagon Nuts

Heavy Hex Nuts

Incoloy 825 Heavy Hex Nuts

Hex Weld Nuts

Incoloy 825 Hex Weld Nuts

Hex Flange Nut

Incoloy 825 Hex Flange Nut

Hex Coupling Nut

Incoloy 825 Hex Coupling Nut

Hex Jam Nut

Incoloy 825 Hex Jam Nut

Slotted Hex Nuts

Incoloy 825 Slotted Hex Nuts

Hex Nylock Nuts

Incoloy 825 Hex Nylock Nuts

Hex Nuts Manufacturers In India

  • Hardness testing to ISO 6508-1

  • Nut proof load testing to ISO 898-2

  • Suitability for preloading to EN 14399-2

  • Calibrated gauges and tools

fevicon-logo Other Types Of Incoloy 825 Hex Nuts

High Quality Inconel 825 Hex Nuts 825 Incoloy Alloy Hex Nuts Manufacturer in India
Alloy 825 Hex Nuts Supplier in Mumbai Inconel 2.4858 Hexagonal Nuts
Inconel 825 Hex Nut Suppliers 825 Incoloy Industrial Hex Nuts
Alloy 825 Hex Nuts Stockist in Mumbai ASTM B425 825 Hex Nut
Incoloy Alloy 825 Hex Nut Supplier in India Inconel 825 Hex Thin Nuts
Inconel 825 Hex Nuts Stockist Nickel Alloy 825 Hex Nut
825 Incoloy Slotted Hex Nuts Incoloy 825 Hex Nuts Manufacturer in Mumbai
825 Incoloy Alloy Hex Nuts Stockist in India Inconel 825 Hexagon Dome Nuts
Incoloy N08825 Hex Nut 825 Incoloy Hex Nuts Manufacturer

fevicon-logo Incoloy 825 Hex Nuts Application Industries

Aerospace Industry
Nuclear Industry
MEdical Industry
Marine Industry
Mining Industry
Automotive Industry
Construction Industry
Manufacturing Industry
Nut Bolt