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Incoloy

SSM offers a range of Incoloy products such as pipes, fittings, flanges, fasteners, plates, and bars.

Incoloy Alloy

Incoloy

Incoloy alloy is a type of nickel-iron based alloy with excellent corrosion resistance and high temperature resistance, and is commonly used in various industrial applications. SSM provides a variety of carbon steel products, including pipes, fittings, flanges, fasteners, plates, and bars. You can consult the following ASTM specifications to select the products that best meet your requirements:

Incoloy alloys can be classified according to their chemical composition and application characteristics. The main Incoloy alloy classifications include:

Product TypesASTM SpecificationsCommon Grades
Steel PipesASTM B407Incoloy 800, Incoloy 800H, Incoloy 800HT
Pipe FittingsASTM B366Incoloy 800, Incoloy 800H, Incoloy 800HT
FlangesASTM B564Incoloy 825
FastenersASTM B408Incoloy 800, Incoloy 800H, Incoloy 800HT
PlatesASTM B409Incoloy 800, Incoloy 800H, Incoloy 800HT, Incoloy 825
BarsASTM B408Incoloy 800, Incoloy 800H, Incoloy 800HT

We can provide Incoloy products according to ISO, EN, JIS, and GB standards. Please reach out to us for additional technical support.

Incoloy Products We Supply

SSM’s product range comprises steel pipes, pipe fittings, flanges, fasteners, plates, and bars. We provide a wide range of standard and custom products to fulfill your various requirements.

Steel-Pipes

Incoloy Pipes

SSM provides a wide variety of seamless and welded steel pipes and tubes manufactured from carbon steel, stainless steel, nickel alloys, and other alloys.

pipe fittings

Incoloy Pipe Fittings

SSM offers a wide range of forged butt-weld, socket-weld, and threaded fittings in carbon steel, stainless steel, nickel alloy, and other alloys.

Flanges

Incoloy Flanges

SSM offers a wide range of butt-welding flanges, socket flanges, slip-on flanges, threaded flanges, blind flanges, etc., made of carbon steel, stainless steel, nickel alloys, and other alloys.

Fasteners

Incoloy Fasteners

SSM provides a wide range of bolts, nuts, washers, and more manufactured from carbon steel, stainless steel, nickel alloys, and other alloys.

Sheet-Metals

Incoloy Plates

SSM offers a variety of plates, sheets, strips, and coils made of carbon steel, stainless steel, nickel alloy, and other alloys.

Round-Bars

Incoloy Bars

SSM provides a wide variety of round bars, square bars, hexagon bars, and flat bars made from carbon steel, stainless steel, nickel alloy, and other alloys.

Classification of Incoloy

Inconel alloys can be classified based on their chemical composition, main alloying elements, and application characteristics. Below is the general classification of Inconel alloys:

Chemical Composition of Incoloy Alloys

AlloyIncoloy 800Incoloy 800HIncoloy 800HTIncoloy 825
Nickel (Ni)30-35%30-35%30-35%38-46%
Iron (Fe)39.5% min39.5% min39.5% min22% min
Chromium (Cr)19-23%19-23%19-23%19.5-23.5%
Carbon (C)0.1% max0.05-0.1%0.06-0.10%
Aluminum (Al)0.15-0.60%0.15-0.60%0.85-1.20%0.2% max
Titanium (Ti)0.15-0.60%0.15-0.60%0.85-1.20%0.6-1.2%
Copper (Cu)0.75% max1.5-3%
Molybdenum (Mo)2.5-3.5%

Physical Properties of Incoloy Alloys

AlloyIncoloy 800Incoloy 800HIncoloy 800HTIncoloy 825
Density (g/cm³)7.947.947.948.14
Melting Point (°C)1350-14001350-14001350-14001400-1450
Tensile Strength (MPa)600-950600-950600-950550-750
Yield Strength (MPa)240-400240-400240-400220-440
Elongation (%)30-4530-4530-4530-60
Hardness (HV)160-220160-220160-220150-200

Mechanical Properties of Incoloy Alloys

AlloyIncoloy 800Incoloy 800HIncoloy 800HTIncoloy 825
Tensile Strength (MPa)520-690520-690520-690550-750
Yield Strength (MPa)210-415210-415210-415220-550
Elongation (%)30-4530-4530-4530-60
Hardness (HB)150-220150-220150-220150-250

Performance comparison of Incoloy 800/800H/800HT & Incoloy825

  • Incoloy 800: An iron-nickel-chromium alloy with outstanding oxidation and high-temperature creep resistance. Widely used in high-temperature heat treatment equipment and petrochemical industries.
  • Incoloy 800H: An enhanced version of Incoloy 800 with superior creep resistance at high temperatures, perfect for prolonged use above 800°F (427°C).
  • Incoloy 800HT: A high-temperature iteration of Incoloy 800 with elevated oxidation resistance and strength. Ideal for high-temperature environments such as furnaces and furnace tubes.
  • Incoloy 825: A nickel-iron-chromium alloy enriched with copper and titanium for excellent corrosion resistance, particularly in sulfuric acid and sulfate environments. Commonly utilized in chemical equipment and marine applications.

Advantages and Disadvantages of Incoloy

Understanding the advantages and disadvantages of Incoloy Alloy, and comparing it with other alloys, allows you to select products that are suitable for specific applications and meet cost requirements.

Advantages:The remarkable Incoloy alloys are renowned for their ability to maintain strength and structural integrity at high temperatures, while demonstrating exceptional oxidation and corrosion resistance. These versatile alloys are perfectly suited for marine, chemical, and industrial applications, offering impressive mechanical properties including toughness and fatigue resistance.

Disadvantages:It’s important to bear in mind that Incoloy alloys contain valuable elements like nickel and chromium, which may result in higher costs compared to standard stainless steel and other materials. Specialized cutting tools and processing techniques are essential to avoid overhardening and tool damage. Additionally, at elevated temperatures, particularly in redox environments, carbide precipitation may occur, potentially leading to embrittlement and impacting the alloy’s mechanical properties.

Applications of Incoloy

Incoloy alloys find application across various industries due to their exceptional properties such as high temperature strength, corrosion resistance, and durability. Here are some common applications of Incoloy alloys:

Summary

Overall, the versatility and specific properties of Incoloy alloys make them suitable for a wide range of demanding applications across industries that require high performance in extreme environments.

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