Hastelloy C-22 chemical industry pipe
Hastelloy C-22 chemical industry pipe
Hastelloy C-22 pipe, a nickel-chromium-molybdenum-tungsten alloy, is widely used in the chemical industry for its excellent corrosion resistance, high-temperature performance, and resistance to various corrosion conditions, including pitting, crevice corrosion, and stress corrosion cracking. Its corrosion resistance surpasses that of many other alloys, particularly in oxidizing environments and wet chlorine environments. It is widely used in applications such as chemical equipment, heat exchangers, and flue gas desulfurization systems.
What are Hastelloy C22 alloys used for?
C-22 is suitable for use in highly corrosive media with high chloride content and high temperatures, such as buffer solutions, active pharmaceutical ingredients (APIs), fabric softeners, cleaning products, and fish, soy, and chili sauces.
Specification Chart of Hastelloy C22 pipe
| Standard | : | ASTM, ASME B 622, B 619, B 775, B 516, B 626 |
| Size | : | 15NB TO 150 NB IN |
| Grade | : |
Hastelloy C22 Seamless Pipes & Tubes: ASTM B 622, ASME SB 622 Hastelloy C22 Welded Pipes and Tubes : ASTM B 619, B 626, B 575, B 574, UNS 6022 / Werkstoff Nr. 2.4617 |
| Type | : | Seamless / ERW / Welded / Fabricated / LSAW Pipes |
| Form | : | Round, Square, Rectangular, Hydraulic Etc. |
| End | : | Plain End, Bevelled End, Treaded |
| Length | : | Single Random, Double Ranidom & Cut Length |
Hastelloy C22 pipe Mechanical Properties
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Hastelloy C22 | 8.69 g/cm3 | 1399 °C (2550 °F) | Psi – 1,00,000 , MPa – 690 | Psi – 45000 , MPa – 310 | 45 % |
ASTM B622 UNS N06022 Pipe Chemical Composition
| Grade | C | Mn | Si | S | Co | Ni | Cr | Fe | Mo | P |
| C22 | 0.010 max | 0.50 max | 0.08 max | 0.02 max | 2.50 max | 50.015 min* | 20.00 – 22.50 | 2.00 – 6.00 | 12.50 – 14.50 | 0.02 max |
Hastelloy C22 Pipe Sizes
Hastelloy Alloy C22 Seamless Pipes are supplied according to ANSI/ ASME B36.19.
WT = Hastelloy C22 pipe wall thickness
OD = Hastelloy C22 pipe outside diameter
| ASTM B622 Hastelloy Pipe OD mm |
Pipe WT mm |
in. | Sch | Kg/m |
|---|---|---|---|---|
| 13.72 | 1.65 | 1/4 | 10S | 0.50 |
| 13.72 | 2.24 | 1/4 | 40S | 0.64 |
| 13.72 | 3.02 | 1/4 | 80S | 0.81 |
| 17.15 | 1.65 | 3/8 | 10S | 0.64 |
| 17.15 | 2.31 | 3/8 | 40S | 0.86 |
| 17.15 | 3.20 | 3/8 | 80S | 1.12 |
| 21.34 | 2.11 | 1/2 | 10S | 1.02 |
| 21.34 | 2.77 | 1/2 | 40S | 1.29 |
| 21.34 | 3.73 | 1/2 | 80S | 1.65 |
| 26.67 | 2.11 | 3/4 | 10S | 1.30 |
| 26.67 | 2.87 | 3/4 | 40S | 1.71 |
| 26.67 | 3.91 | 3/4 | 80S | 2.23 |
Common Applications in the Chemical Industry
Chemical and petrochemical processing
Heat exchangers and reaction vessels
Flue gas desulfurization (FGD) systems
Incinerator scrubber systems and exhaust piping
Pulp and paper industry bleaching plants
Industrial waste treatment facilities
Gnee Steel specializes in the production of various nickel-based alloys. Gnee Steel's product packaging includes steel strapping: Pipes with an outer diameter of 3 inches or less are typically strapped together with polypropylene film to prevent rust during sea transportation, and then secured with steel strapping. Wooden boxes/crates: Pipes are typically packaged in wooden boxes or crates to protect them during transportation, especially those that are longer or have larger diameters. Seaworthy export packaging: Suppliers typically use standard seaworthy export packaging methods, which may include a variety of materials and techniques to protect the pipes during transportation. Tarpaulin packaging: This prevents rain, seawater, and other external factors from penetrating the export wooden crates during transportation. Gnee Steel specializes in the production and sale of alloy materials. Gnee Steel's products are widely used in aerospace, chemical, power, automotive, and nuclear energy industries, and we can provide customized alloy material solutions based on customer needs. For alloy material pricing inquiries or customized alloy material solutions, please contact us for a quote at ss@gneesteel.com.
