Hastelloy C-22 Pipes & Tubes
Hastelloy C-22 is a high-performance nickel-chromium-molybdenum alloy known for its excellent corrosion resistance in a wide range of aggressive environments, including those containing acids, salts, and other corrosive substances. It is often used in various industrial applications, particularly in the form of pipes and tubes.
Hastelloy C22 is known to be the most versatile Nickel chromium and Monel based alloy having excellent corrosion resistance properties as compared with other nickel and Monel based alloys. The grade offers improved resistance to corrosion; good pitting resistance, excellent crevice corrosion, and excellent stress crack corrosion resistance are some of the resistive properties found. The grade also offers improved property of resistance to environment where there is reducing and oxidizing conditions. Due to all of these qualities, the grade has been widely used in chemical processing industries and other industries where there is high amount of corrosion and other impurities.
Specifications
- ASTM B619:This specification covers seamless and welded Hastelloy C-22 pipes for general corrosion-resistance applications. It includes details about dimensions, tolerances, and material properties.
- ASTM B622:ASTM B622 is the standard specification for seamless and welded Hastelloy C-22 tubes. It provides information on the dimensions, mechanical properties, and manufacturing processes for these tubes.
- ASME SB-622:This is the ASME Boiler and Pressure Vessel Code equivalent of ASTM B622. It ensures compliance with pressure vessel and piping design standards.
- ASME SB-619:The ASME Boiler and Pressure Vessel Code counterpart to ASTM B619. It sets the standards for seamless and welded Hastelloy C-22 pipes used in pressure vessel applications.
- NACE MR0175/ISO 15156: This standard specifies the requirements for materials used in sour service environments, particularly in the oil and gas industry. Hastelloy C-22 pipes and tubes may need to meet NACE MR0175 requirements if used in these applications.
- DIN 17751:This German standard provides specifications for Hastelloy C-22 pipes and tubes and covers dimensions and technical delivery conditions.
- EN 10204:This European standard outlines the different types of inspection certificates that may be required for Hastelloy C-22 pipes and tubes, ensuring traceability and quality control.
- Size – 1/4 inch NB to 15 inch NB
- Schedule –SCH5, SCH10, SCH40, STD, SCH80, SCH160
- Type –Seamless / ERW / Welded / Fabricated
- Length –Single Random, Double Random & Cut Length.
- End – Plain End, Beveled End, Treaded
Hastelloy C-22 pipes and tubes are typically manufactured in compliance with various industry standards and specifications to ensure their quality and performance. Below are some common specifications for Hastelloy C-22 pipes and tubes:
When procuring Hastelloy C-22 pipes and tubes, it’s important to specify the relevant standard to ensure that the product meets your specific requirements and industry regulations. Additionally, other factors such as the size, schedule, and length of the pipes and tubes, as well as any additional testing or documentation, may also need to be considered based on your application’s needs. Always work closely with your supplier to ensure you receive materials that meet the necessary specifications for your project.
size range
Material Certification and Traceability
At Satyam Overseas, we prioritize Material Certification and Traceability. Our materials, meeting ASTM and ASME standards, come with 3.1 Mill Test Certificates as a guarantee of compliance. Additionally, upon request, we provide 3.2 Mill Test Certificates for added assurance. Every material is clearly marked and accompanied by a corresponding certificate, meticulously linking markings to certification. This meticulous approach ensures complete accountability and unwavering reliability throughout our supply chain.
Chemical Composition
| Hastelloy C22 | Ni | C | Mo | Mn | Si | Fe | P | S | Co | Cr |
|---|---|---|---|---|---|---|---|---|---|---|
| Balance | 0.010 max | 12.5 – 14.5 | 0.50 max | 0.08 max | 2 – 6 | 0.02 max | 0.02 max | 2.5 max | 20 – 22.5 |
Physical Composition
| Density | Melting Point | Yield Strength (0.2%offset) | Tensile Strength | Elongation |
|---|---|---|---|---|
| 8.7 g/cm3 | 1355–1400 ° C | |||
| 0.314 Ib/in.3 | 2470–2550° F |
Designations & Standards
| Forms | ASTM | ASME | DIN |
|---|---|---|---|
| Pipe and Tube | B 619/B 775 B 622/B 829 B 626/B 751 | SB 619/SB 775 SB 622/SB 829 SB 626/SB 751 | 17751 |
Differences between Monel and Hastelloy
Monel and Hastelloy are two different types of nickel-copper alloys. Monel is more corrosion resistant, but it is less heat-conductive. It also has a lower melting point. This makes it perfect for high-temperature uses such as stove tops and gas pipes. But if you want a material with a higher melting point, you would be better off choosing Hastelloy because it can withstand very high temperatures without losing any strength or corrosion resistance. Monel is a nickel-copper alloy that resists corrosion in acidic environments. It can be used in piping, valves, and other fluid transfer components.
Monel parts are also good for use in high-temperature applications. Hastelloy is an alloy of nickel, chromium, and molybdenum. It provides the right mix of both tensile strength and corrosion resistance for most industrial applications. Monel is a family of iron-nickel alloys containing nickel and copper, called cupronickel. Monel metal is nonmagnetic and resistant to corrosion in seawater. Hastelloy is a family of nickel-based superalloys, with a percentage of cobalt, titanium, iron, and molybdenum making up the composition. Hastelloy has a much higher nickel content than Monel. Monel is a nickel-copper alloy, and Hastelloy is a series of alloys containing nickel and several other metals. Monel has a low voltage coefficient and is resistant to most corrosive environments. Whereas Hastelloy is designed for applications in high-temperature, oxidizing environments.
Differences between Inconel and Hastelloy
Inconel and Hastelloy are both nickel-chromium-molybdenum-based alloys. They are all corrosion-resistant and extremely strong metals. Hastelloy has greater molybdenum content than Inconel, although Inconel has a higher chromium concentration. This sets them apart in terms of corrosion resistance in different situations.