Hastelloy C276 B622 Chemical Industry Standard Pipe
Hastelloy C276 B622 Chemical Industry Standard Pipe
Hastelloy C276 pipe is a widely used nickel-based alloy (UNS N10276) that meets the ASTM B622 standard for seamless pipe for the chemical industry. It is highly regarded for its excellent corrosion resistance, even at elevated temperatures, against a wide range of media, including strong acids and chlorides. Available in a variety of sizes, this pipe can be used in demanding applications such as chemical reactors, heat exchangers, and pollution control equipment. Its low carbon content makes it easy to weld without compromising corrosion resistance.
What is the maximum operating temperature of Hastelloy C276?
Hastelloy C-276 is a nickel-molybdenum-chromium corrosion-resistant alloy. It resists pitting, crevice corrosion, and stress corrosion cracking. Hastelloy C-276 can be hardened simply by cold working. Hastelloy C-276 can operate at cryogenic temperatures up to a maximum temperature of 750°F (400°C).
Hastelloy C276 Seamless Pipe Specification Chart
| ASTM Specification | ASTM B622 ASME SB 622/ ASTM B619 ASME SB 619 |
|---|---|
| Standard | ASTM, ASME, JIS, AISI, AMS, EN, SAE, DIN, NF, TOCT, DS, DTD, GB |
| Hastelloy C276 Seamless Pipe Size | 4 to 219mm W. T.: 0.5 to 20mm |
| UNS N10276 Welded Pipes Size | 5.0 - 1219.2 mm |
| Hastelloy WERKSTOFF NR. 2.4819 EFW Pipes size | 5.0 - 1219.2 mm |
| Swg & Bwg | 12 Swg., 10 Swg., 16 Swg., 14 Swg., 20 Swg., 18 Swg., |
| Schedule | XS, SCH30, SCH40, XXS, SCH80, SCH120, SCH60, SCH140, STD, SCH10, SCH10S, SCH40S, SCH80, SCH20, SCH5, SCH160 |
| Length | Double Random, Single Random, Standard & Cut length Pipe |
| Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF, NO.1, NO.4, 2B, BA, HL, 8K, Mirror finish, etc |
| Form | Hastelloy C276 pipes are available in form of Round, Square, Hollow, Rectangular, Hydraulic, Coiled, Straight Pipes, "U" Shape, Pan Cake Coils etc. |
| Type of C276 Alloy Pipes | Seamless / ERW/ EFW / Welded / Fabricated / CDW / DOM / CEW Hastelloy C276 |
| Hastelloy C276 pipe End | Plain End, Beveled End, Treaded Pipes, Screwed ends |
| Marking | All ASTM B622 Hastelloy C276 Pipes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer's request.) |
| Application of | Dairy Pipes, Oil Pipes, Gas Pipes, Fluid Pipes, Boiler Pipes for Chemical Industry |
| Value Added Service | Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc. |
| Specialize in | Large Diameter Hastelloy C276 pipe |
Alloy C276 pipe Chemical Composition
| Hastelloy C276 | Ni | C | Mo | Mn | Si | Fe | P | S | Co | Cr |
| Balance | 0.010 max | 15.00 – 17.00 | 1.00 max | 0.08 max | 4.00 – 7.00 | 0.04 max | 0.03 max | 2.5 max | 14.50 – 16.50 |
ASTM B622 Standard
Scope: This standard covers seamless nickel and nickel-cobalt alloy pipe, including Hastelloy C276 (UNS N10276).
Requirements: The pipe must meet specific mechanical property requirements, including tensile strength, yield strength, and elongation.
Testing: Each pipe is subjected to tensile, hydrostatic, and nondestructive electrical testing.
Condition: Pipe is supplied solution annealed and descaled unless a controlled atmosphere process is used.
Common Applications in the Chemical Industry
Chemical reactors and process equipment
Heat exchangers
Corrosive fluid piping systems
Pulp and paper industry equipment, such as digesters in bleach plants
Pollution control equipment, including scrubbers and piping
Hastelloy C276 Pipe Mechanical Strength
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 8.89 g/cm3 | 1370 °C (2500 °F) | Psi – 52,000 , MPa – 355 | Psi – 1,15,000 , MPa – 790 | 40 % |
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.
