| Property | Nickel-based Alloy Tubes |
| Material Composition | Primarily composed of nickel, with other alloying elements like iron, chromium, molybdenum, cobalt, and sometimes titanium. Common alloys include Inconel, Hastelloy, and Monel. |
| Diameter Range | Tube diameters typically range from 6 mm to over 100 mm, depending on the alloy and specific application needs. |
| Wall Thickness | Varies from thin-walled (e.g., 0.5 mm) to thick-walled (e.g., several millimeters), depending on pressure requirements and service conditions. |
| Applications | Used in applications such as heat exchangers, chemical reactors, aerospace components, power generation (boilers, turbines), and marine environments. |
| Mechanical Properties | High tensile strength, excellent toughness, and good ductility even in extreme conditions. |
| Corrosion Resistance | Outstanding resistance to oxidation, pitting, and general corrosion, particularly in high-temperature and aggressive chemical environments (e.g., acid, alkali). |
| Thermal Resistance | Excellent resistance to high temperatures (up to 1000°C or more), making them ideal for high-heat applications like heat exchangers and furnace components. |
| Forming & Fabrication | Can be cold-drawn, extruded, or seamless, offering high precision and uniformity in diameter and wall thickness. Can also be welded, brazed, or flanged. |
| Heat Treatment | Can be heat-treated (annealed or solution-treated) to enhance strength, corrosion resistance, and mechanical properties, especially for high-performance applications. |
| Welding & Joining | Weldable using common techniques (e.g., TIG, MIG, or plasma welding), although some alloys may require specialized welding methods due to their high strength or composition. |
| Examples of Alloys | Inconel 625, Inconel 718, Hastelloy C-276, Monel 400, Alloy 400. |
| Cost | More expensive than standard steel pipes due to the high cost of nickel and other alloying elements, as well as the processing techniques involved. |
| Common Standards | ASTM B163, ASTM B166, ASTM B444, ASME SB163, ASME SB167. |