Hastelloy C276 is a nickel-molybdenum-chromium alloy with excellent resistance to a wide range of corrosive environments, including oxidizing and reducing acids, chlorine, and seawater. It is highly versatile and widely used in a variety of applications, including chemical processing, pollution control, and pulp and paper production.
The chemistry of Hastelloy C276 includes:
- Nickel (Ni): 55.5%
- Molybdenum (Mo): 16.0%
- Chromium (Cr): 15.5%
- Iron (Fe): 5.5%
- Tungsten (W): 3.8%
- Carbon (C): 0.01%
- Manganese (Mn): 0.50%
- Silicon (Si): 0.08%
- Phosphorus (P): 0.02%
- Sulfur (S): 0.03%
Specifications and Standards:
Hastelloy C276 tubing is available in a range of sizes and wall thicknesses to meet various application requirements. The following specifications and standards are applicable to Hastelloy C276 tubing:
- ASTM B619/B619M – Standard Specification for Welded Nickel and Nickel-Cobalt Alloy Pipe
- ASTM B622/B622M – Standard Specification for Seamless Nickel and Nickel-Cobalt Alloy Pipe and Tube
- ASTM B626/B626M – Standard Specification for Welded Nickel and Nickel-Cobalt Alloy Tube
- ASME SB-622 – Specification for Seamless Nickel and Nickel-Cobalt Alloy Pipe and Tube
- ASME SB-626 – Specification for Welded Nickel and Nickel-Cobalt Alloy Tube
Hastelloy C276 tubing is widely used in a variety of applications where resistance to corrosion and high temperature is required. Some common applications include:
- Chemical processing: Hastelloy C276 tubing is used in chemical processing plants for handling aggressive chemicals, such as sulfuric acid, hydrochloric acid, and phosphoric acid.
- Pollution control: The tubing is used in scrubbers and other pollution control systems for removing pollutants from industrial processes and emissions.
- Pulp and paper production: The tubing is used in the production of pulp and paper, where it is exposed to corrosive chemicals, high temperatures, and high pressures.
- Oil and gas: Hastelloy C276 tubing is used in oil and gas production, including downhole tubing, wellhead components, and production equipment.
Hastelloy C276 tubing is a highly versatile and corrosion-resistant material that is widely used in a range of industries and applications. With its excellent mechanical properties, high temperature resistance, and superior corrosion resistance, it is an ideal material for use in harsh environments where other materials would quickly degrade.