ASTM B622 Hastelloy C276 low carbon nickel alloy seamless pipe
ASTM B622 Hastelloy C276 low carbon nickel alloy seamless pipe
ASTM B622 Hastelloy C276 low-carbon nickel alloy seamless pipe is a seamless tube made from a nickel-molybdenum-chromium high-temperature alloy conforming to ASTM B622. This pipe is renowned for its excellent resistance to pitting, crevice corrosion, and stress corrosion cracking in harsh environments, particularly in highly oxidizing and reducing media. The alloy's low carbon content prevents carbide precipitation during welding, maintaining corrosion resistance even in the welded condition.
What is the ASTM equivalent of Hastelloy C276?
Hastelloy C276 pipe conforms to two specifications: ASTM B622 and ASTM B619. Generally, ASTM B622 pipe is seamless, while ASTM B619 pipe is welded. Of all Hastelloy alloy variants, C276 pipe is the most popular.
Alloy C276 Pipes Standard Quality Specification
| Specifications | ASTM B 622 ASME SB 622 / ASTM B 619 ASME SB 619 |
| Dimensions | ASME, ASTM, and API |
| Size | 15″NB upto 150″NB IN |
| Specialized in | Sizes in Large Diameter |
| Schedule | Schedule 5, 10, 40, STD, 80, 160 |
| Type | ERW / Seamless / Welded / LSAW Pipes / Fabricated |
| Form | Hydraulic, Round, Etc |
| Length | Double Random, Single Random, & Cut Length. |
| End | Beveled End, Plain End, Treaded |
Hastelloy C276 nickel alloy seamless pipe Chemical Analysis
| Hastelloy C276 | Fe | Ni | P | C | Co | Mo | Si | Mn | S | Cr |
| 4 – 7 | Balance | 0.04 max | 0.01 max | 2.5 max | 15 – 17 | 0.08 max | 1.0 max | 0.03 max | 14.5 – 16.5 |
Alloy C276 low carbon seamless pipe Mechanical Properties Chart
| Density | Yield Properties (0.2%Offset) | Melting Point | Elongational | Tensile Properties |
| 8.89 g/cm3 | Psi – 52,000 , MPa – 355 | 1370 °C (2500 °F) | 40 % | Psi – 1,15,000 , MPa – 790 |
Key Features:
Material: Hastelloy C276 is a nickel-molybdenum-chromium high-temperature alloy with a tungsten addition.
Low Carbon Content: This minimizes carbide precipitation during welding, maintaining corrosion resistance in the heat-affected zone.
Seamless Construction: This pipe is manufactured with seamless welds and complies with ASTM B622.
Corrosion Resistance: It offers excellent resistance to a wide range of corrosive substances, including oxidizing acids, wet chlorine gas, and hypochlorite solutions.
Excellent Mechanical Properties: ASTM B622 requires specific mechanical properties, such as tensile strength and yield strength.
Recommendations:
This type of pipe is ideal for chemical processing, pollution control, pulp and paper production, and other industrial applications where materials are exposed to harsh corrosive environments. Its corrosion resistance under both reducing and oxidizing conditions and its resistance to weld-induced corrosion make it a reliable choice for demanding applications.
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.
