ASTM B622 Hastelloy C276 Nickel Alloy Oxidation Resistant Seamless Pipe
ASTM B622 Hastelloy C276 oxidation-resistant seamless pipe is a versatile nickel-chromium-molybdenum alloy (UNS N10276) with excellent corrosion resistance. It features high nickel and molybdenum contents for resistance in reducing environments, a high chromium content for resistance in oxidizing environments, and a low carbon content to prevent carbide precipitation and titanium dioxide formation.
What are the specifications of Hastelloy C276 pipe?
The material's composition gives it a high melting point of 1370 degrees Celsius. Hastelloy C276 seamless pipe has a minimum yield strength of 355 MPa and a minimum tensile strength of 790 MPa. The material also has a high density, weighing 8.89 grams per cubic centimeter.
ASTM B622 UNS N10276 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 B167 UNS N06601 Mechanical Properties:
| 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 % |
| ASTM B622 Alloy C276 Tubing Standards | ASTM B622/ ASME SB622, ASTM B626/ ASME SB626 |
|---|---|
| ASTM B622 Alloy C276 Seamless Tube Size | 3.35 mm OD To 101.6 mm OD |
| ASTM B622 Alloy C276 Welded Tube Size | 6.35 mm OD To 152 mm OD |
| ASTM B626 Hastelloy C276 Tubing Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
| Inconel WERKSTOFF NR. 2.4819 Tube wall thickness | 0.020" –0.220", (special wall thicknesses available) |
| Inconel UNS N10276 Tubing Length | Single Random, Double Random, Standard & Cut length Tube |
| Inconel WERKSTOFF NR. 2.4819 Tubing Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF |
| Form | 'U' bent, Hollow, Hydraulic, LSAW, Boiler, Straight Tube, Tube Coil, Round, Rectangular, Square Etc |
| Types of C276 Alloy Tubing | Seamless, ERW, EFW, Welded, Fabricated Tube / Tubing |
| C276 Alloy Tube End | Plain End, Beveled End, Treaded Tube |
| Marking | All ASTM B622 Hastelloy C276 Tubing are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer's request.) |
| Application & uses of Hastelloy C276 Tube | Oil Tube, Gas Tube, Fluid Tube, Boiler Tube, Heat exchanger Tube, |
| Value Added Service | Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc. |
| Specialize in | ASTM B622 Hastelloy C276 Capillary Tube & Other Odd Size Hastelloy NCF C276 Heat Exchanger & Condenser Tube |
Hastelloy C276 Nickel Alloy Oxidation Resistant Seamless Pipe Applications
Chemical Processing: For demanding applications in the chemical industry.
Oil & Gas: For sour natural gas recovery and refinery fuel transportation.
Pollution Control: For use in various environmental control systems.
Pulp & Paper: For use in pulp and paper production facilities.
ASTM B622 Standard
ASTM B622 covers the requirements for seamless pipes made of Hastelloy C-276 and other nickel alloys.
Seamless Manufacturing: ASTM B622 pipe is manufactured using a seamless process, ensuring a high-quality, reliable product for critical applications.
Why It Resists Oxidation:
Hastelloy C-276, with its high nickel, chromium, and molybdenum contents and carefully controlled low carbon content, resists severe oxidation even at high temperatures and reduces the formation of harmful intermetallic phases.
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 rainwater, 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@gneemetal.com
