Incoloy
SSM offers a range of Incoloy products such as pipes, fittings, flanges, fasteners, plates, and bars.
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 Types | ASTM Specifications | Common Grades |
| Steel Pipes | ASTM B407 | Incoloy 800, Incoloy 800H, Incoloy 800HT |
| Pipe Fittings | ASTM B366 | Incoloy 800, Incoloy 800H, Incoloy 800HT |
| Flanges | ASTM B564 | Incoloy 825 |
| Fasteners | ASTM B408 | Incoloy 800, Incoloy 800H, Incoloy 800HT |
| Plates | ASTM B409 | Incoloy 800, Incoloy 800H, Incoloy 800HT, Incoloy 825 |
| Bars | ASTM B408 | Incoloy 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.
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.
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.
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.
Incoloy Fasteners
SSM provides a wide range of bolts, nuts, washers, and more manufactured from carbon steel, stainless steel, nickel alloys, and other alloys.
Incoloy Plates
SSM offers a variety of plates, sheets, strips, and coils made of carbon steel, stainless steel, nickel alloy, and other alloys.
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
| Alloy | Incoloy 800 | Incoloy 800H | Incoloy 800HT | Incoloy 825 |
| Nickel (Ni) | 30-35% | 30-35% | 30-35% | 38-46% |
| Iron (Fe) | 39.5% min | 39.5% min | 39.5% min | 22% min |
| Chromium (Cr) | 19-23% | 19-23% | 19-23% | 19.5-23.5% |
| Carbon (C) | 0.1% max | 0.05-0.1% | 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% max | – | – | 1.5-3% |
| Molybdenum (Mo) | – | – | – | 2.5-3.5% |
Physical Properties of Incoloy Alloys
| Alloy | Incoloy 800 | Incoloy 800H | Incoloy 800HT | Incoloy 825 |
| Density (g/cm³) | 7.94 | 7.94 | 7.94 | 8.14 |
| Melting Point (°C) | 1350-1400 | 1350-1400 | 1350-1400 | 1400-1450 |
| Tensile Strength (MPa) | 600-950 | 600-950 | 600-950 | 550-750 |
| Yield Strength (MPa) | 240-400 | 240-400 | 240-400 | 220-440 |
| Elongation (%) | 30-45 | 30-45 | 30-45 | 30-60 |
| Hardness (HV) | 160-220 | 160-220 | 160-220 | 150-200 |
Mechanical Properties of Incoloy Alloys
| Alloy | Incoloy 800 | Incoloy 800H | Incoloy 800HT | Incoloy 825 |
| Tensile Strength (MPa) | 520-690 | 520-690 | 520-690 | 550-750 |
| Yield Strength (MPa) | 210-415 | 210-415 | 210-415 | 220-550 |
| Elongation (%) | 30-45 | 30-45 | 30-45 | 30-60 |
| Hardness (HB) | 150-220 | 150-220 | 150-220 | 150-250 |
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:
- Heat Exchangers
- Petrochemical Processing
- Industrial Furnaces
- Aerospace and Gas Turbines
- Marine Applications
- Chemical Processing
- Power Plants
- Food Processing
- Automotive and Racing
- Medical Applications
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.