Inconel
SSM offers a inconel products such as pipes, fittings, flanges, fasteners, plates, and bars.
Inconel
Inconel is a nickel-based superalloy known for its exceptional high-temperature strength and resistance to corrosion. It is commonly utilized in industrial settings that involve extreme conditions. 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:
Depending on its specific composition and processing technology, Inconel alloy is suitable for industrial applications under various harsh conditions, such as high temperature, corrosion, oxidation resistance, and wear resistance, such as aerospace, chemical industry, energy, and other fields.
| Product Types | ASTM Specifications | Common Grades |
| Steel Pipes | ASTM B407, ASTM B163, ASTM B829 | Inconel 600 (UNS N06600), Inconel 601 (UNS N06601), Inconel 625 (UNS N06625), Inconel 718 (UNS N07718), etc. |
| Pipe Fittings | ASTM B366 | |
| Flanges | ASTM B564 | |
| Fasteners | ASTM F468 | |
| Plates | ASTM B424, ASTM B168 | |
| Bars | ASTM B166 |
We can provide Inconel products according to ISO, EN, JIS, and GB standards. Please reach out to us for additional technical support.
Inconel 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.
Inconel 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.
Inconel 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.
Inconel 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.
Inconel Fasteners
SSM provides a wide range of bolts, nuts, washers, and more manufactured from carbon steel, stainless steel, nickel alloys, and other alloys.
Inconel Plates
SSM offers a variety of plates, sheets, strips, and coils made of carbon steel, stainless steel, nickel alloy, and other alloys.
Inconel 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 Inconel
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 Inconel Alloys
| Alloy | Inconel 600 | Inconel 601 | Inconel 625 | Inconel 718 |
| Nickel (Ni) (%) | 72.0 min | 58.0-63.0 | 58.0 min | 50.0-55.0 |
| Chromium (Cr) (%) | 14.0-17.0 | 21.0-25.0 | 20.0-23.0 | 17.0-21.0 |
| Iron (Fe) (%) | 6.0-10.0 | Balance | 5.0 max | Balance |
| Carbon (C) (%) | 0.15 max | 0.1 max | 0.1 max | 0.08 max |
| Manganese (Mn) (%) | 1.0 max | 1.0 max | 0.5 max | 0.35 max |
| Sulfur (S) (%) | 0.015 max | 0.015 max | 0.015 max | 0.015 max |
| Silicon (Si) (%) | 0.5 max | 0.5 max | 0.5 max | 0.35 max |
| Aluminum (Al) (%) | – | 1.0-1.7 | – | 0.2-0.8 |
| Molybdenum (Mo) (%) | – | – | 8.0-10.0 | 2.8-3.3 |
| Niobium (Nb) + Tantalum (Ta) (%) | – | – | 3.15-4.15 | 4.75-5.5 |
| Titanium (Ti) (%) | – | – | – | 0.65-1.15 |
| Phosphorus (P) (%) | – | – | – | 0.015 max |
Physical Properties of Inconel Alloys
| Property | Inconel 600 | Inconel 601 | Inconel 625 | Inconel 718 |
| Density (g/cm³) | 8.47 | 8.11 | 8.44 | 8.19 |
| Melting Point (°C) | 1354 | 1363 | 1290 | 1260 |
| Specific Heat (J/kg·K) | 444 | 444 | 419 | 418 |
| Thermal Conductivity (W/m·K) | 14.9 (100°C) | 14.9 (100°C) | 12.8 (100°C) | 12.8 (100°C) |
| 16.3 (500°C) | 16.3 (500°C) | 15.4 (500°C) | 15.4 (500°C) | |
| Electrical Resistivity (µΩ·m) | 1.03 (20°C) | 1.16 (20°C) | 1.34 (20°C) | 1.25 (20°C) |
| Young’s Modulus (GPa) | 207 | 207 | 207 | 200 |
| Tensile Strength (MPa) | 550-690 | 550-700 | 760-950 | 965-1400 |
| Yield Strength (0.2% offset) (MPa) | 240-310 | 240-310 | 330-800 | 800-1200 |
| Elongation (%) | 30-45 | 30-50 | 30-40 | 12-30 |
Mechanical Properties of Inconel Alloys
| Property | Inconel 600 | Inconel 601 | Inconel 625 | Inconel 718 |
| Tensile Strength (MPa) | 550-690 | 550-700 | 760-950 | 965-1400 |
| Yield Strength (0.2% offset) (MPa) | 240-310 | 240-310 | 330-800 | 800-1200 |
| Elongation (%) | 30-45 | 30-50 | 30-40 | 12-30 |
| Hardness (HB) | ≤ 200 | ≤ 220 | ≤ 220 | ≤ 363 |
Advantages and Disadvantages of Inconel
Understanding the advantages and disadvantages of Inconel Alloy, and comparing it with other alloys, allows you to select products that are suitable for specific applications and meet cost requirements.
Advantages：Inconel is a versatile material that can be used in a wide range of temperature conditions, from cryogenic to extremely high temperatures of up to 1093°C (2000°F). It maintains its strength and oxidation resistance even in these extreme conditions. In addition, Inconel has excellent resistance to corrosion, including in oxidizing, reducing, and acidic environments, as well as in seawater. It exhibits high tensile, fatigue, and creep rupture strength, making it suitable for demanding applications. Notably, it can be welded using conventional methods and maintains its mechanical properties even after welding.
Disadvantages：Inconel alloys are relatively expensive compared to other materials. They are difficult to process and form due to their high strength and work hardening rate, which necessitates the use of special tools and techniques. Inconel 600 and 601 may become brittle at low temperatures, while Inconel 718 is susceptible to hydrogen embrittlement, which can affect its mechanical properties in hydrogen-rich environments. Despite having excellent corrosion resistance, certain chemicals or conditions may still cause corrosion or degradation, making careful material selection necessary.
Applications of Inconel
Inconel alloys find extensive applications across various industries due to their exceptional properties, including high temperature resistance, corrosion resistance, and high strength. Here are some common applications of Inconel:
- Aerospace Industry
- Chemical Processing
- Marine Industry
- Power Generation
- Automotive Industry
- Medical Industry
- Electronics and Semiconductor Manufacturing
- Sports and Leisure
Summary
Due to its excellent corrosion resistance, high-temperature resistance, and mechanical properties, the Hastelloy alloy has become an ideal material for many industrial applications. Understanding the different types of Hastelloy alloys and their applicable environments will help you select the most suitable materials under various complex and demanding conditions to ensure the efficient and safe operation of equipment. Using Hastelloy alloy’s characteristics, multiple industries can improve equipment’s reliability and production efficiency and promote the advancement and sustainable development of process technology.