Hastelloy ASTM B622 C276 Oil and Gas Refinery Pipe
Hastelloy ASTM B622 C276 Oil and Gas Refinery Pipe
Hastelloy ASTM B622 C276 pipe is a high-performance nickel-chromium-molybdenum-tungsten alloy widely used in the oil and gas industry for its excellent corrosion and high-temperature resistance. This versatile material is used in critical applications such as high-pressure steam, sour service, and various chemical processes due to its high strength, corrosion resistance, and ability to maintain ductility at low temperatures.
What are the specifications for Hastelloy C276 pipe?
This composition gives the material a high melting point of 1370°C. 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 of 8.89 grams per cubic centimeter.
ASTM B622 UNS N10276 Pipe Specification
| Standard Specification | ASTM B622 UNS N10276, ASME SB 622 UNS N10276 / ASTM B619 ASME SB 619 |
| Manufacturing Type | Seamless / ERW / Welded / Fabricated / CDW / CDS / DOM / CEW / 100% X Ray Welded |
| Thickness Range | SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXH, SCH XXS, SCH XS |
| Standard | SUS, JIS, AISI, ASTM, GB, DIN, EN |
| Value Added Services |
Cutting Beveling Threading Destructive and Non Destructive Ultrasonic Testing Draw & Expansion as per required Size & Length |
| Origin of Hastelloy pipe material | Indian, European, Korean, Japanese |
| ASME SB 622 UNS N10276 Hastelloy Pipe End Types |
BE : Beveled end BBE : Bevel both ends BLE : Bevel large end BSE : Bevel small end TOE / POE = Treaded One End / Plain One End TOE / BOE = Treaded One End / Beveled One End POE / BOE = Plain One End / Beveled One End TBE = Treaded Both Ends PBE = Plain Both Ends |
| Marking of Hastelloy C276 Pipe manufacturers |
Specification Material Grade Nominal Size Schedule or Wall Thickness Method of Manufacturing (Seamless / Welded / ERW) Heat Number Supplier or Manufacturer's Name or Custom Logo - on request Marked Pipe Sample: ASTM B622 UNS N10276 12" NB SCH 40S SEAMLESS HEAT NO. XXXX |
Hastelloy Alloy C276 Pipe Mechanical Properties
| Density | Melting Range | Yield Stress (0.2%Offset) | Tensile Stress | Elongation |
| 8.89 g/cm3 | 1370 °C (2500 °F) | Psi - 52,000 , MPa - 355 | Psi - 1,15,000 , MPa - 790 | 40 % |
C276 Hastelloy Pipe Chemical Composition
| Ni | C | Mo | Mn | Si | Fe | P | S | Co | Cr |
| Balance | 0.01 max | 15 - 17 | 1.0 max | 0.08 max | 4 - 7 | 0.04 max | 0.03 max | 2.5 max | 14.5 - 16.5 |
Key Features
Corrosion Resistance: The high nickel and molybdenum content of C276 alloy provides excellent corrosion resistance in both reducing and oxidizing environments, including strong mineral acids and seawater.
High-Temperature Performance: The alloy maintains its mechanical strength and toughness at elevated temperatures, making it suitable for demanding operating conditions.
Strength: Provides high strength without the need for heat treatment.
Weldability: The low carbon content minimizes carbide precipitation during welding, allowing it to be used in the as-welded condition without significant degradation of corrosion resistance.
Oil and Gas Applications
Corrosive Fluids: Ideal for handling high-velocity corrosive fluids such as sour gas.
Critical Components: Used in blister caps, valves, and other components in contact with flowing corrosive media.
High-Pressure Systems: Its high strength makes it suitable for high-pressure systems within refineries.
Exhaust and Steam Lines: The alloy's durability and resistance to harsh conditions make it suitable for exhaust systems and steam lines.
Gnee Steel specializes in the production and sale of various nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel Alloy 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy Alloy 800, Incoloy 800H/HT, Incoloy 825, Monel Alloy 400, Monel K500, and high-temperature alloys. Gnee Steel's products are widely used in aerospace, chemical, electric power, automotive, and nuclear energy applications. We also offer customized alloy solutions tailored to customer needs. For alloy pricing inquiries or customized alloy solutions, please contact us for a quote at ss@gneesteel.com.
