ASTM B165 MONEL 400 nickel alloy seamless power pipe
ASTM B165 MONEL 400 nickel alloy seamless power pipe
Monel 400 (UNS N04400), specified in ASTM B165, is a nickel-copper alloy used for seamless pipe. This alloy offers excellent resistance to seawater, acids, and stress corrosion cracking, while also possessing high strength and good mechanical properties. Due to its durability and performance in corrosive environments and across a wide range of temperatures, this alloy is suitable for chemical processing, offshore engineering, and nuclear power applications.
What is the spec of Monel 400 pipe?
The specifications are ASTM B165 and B725 for this grade of nickel copper alloy. There are seamless, welded, ERW and fabricated tubes and pipes. The ASME SB165 Monel 400 Seamless Pipe comes under ASTM, ASME and API standards with the sizes ranging from 15 inches to 150inches in nominal bore size.
Chemical Composition of ASTM B165 MONEL 400 power pipe
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr |
| Monel 400 | 0.30 max | 2.00 max | 0.50 max | 0.24max | 28.0-34.0 | 2.50 max | 63.00 min |
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Mechanical Properties of ASTM B165 MONEL 400 power pipe
| Condition & Size | Tensile Strength, min. ksi [MPa] |
Yield Strength, min. ksi [MPa] |
Elongation, min. % |
|---|---|---|---|
| *A | 70 [480] | 28 [195] | 35 |
| *B | 70 [480] | 25 [170] | 35 |
| *C | 85 [585] | 55 [380] | 15 |
Equivalent Material of ASTM B165 MONEL 400 power pipe
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| Monel 400 | 2.4360 | N04400 | NW 4400 | NA 13 | МНЖМц 28-2,5-1,5 | NU-30M | NiCu30Fe |
Alloy Composition and Properties
Composition: Monel 400 is a nickel-copper alloy consisting of approximately 67% nickel and 23% copper, with minor amounts of iron, manganese, carbon, and silicon.
Corrosion Resistance: It performs well in a wide range of corrosive conditions, particularly in seawater, brine, hydrochloric acid, hydrofluoric acid, and other saline solutions.
Mechanical Properties: Monel 400 is known for its high strength, high ductility, and good thermal conductivity. It is strengthened by cold working.
Temperature Range: The alloy maintains its mechanical properties at temperatures ranging from subzero to approximately 1000°F (538°C).
Key Features of ASTM B165 Pipe
Seamless Construction: The pipes are seamless, meaning they do not require any welding during fabrication.
Annealed or Stress Relieved: Pipe manufactured to ASTM B165 is supplied in the annealed condition (soft, matte finish) or stress relieved condition (thin, dark finish). High Strength and Durability: Monel 400's high strength enables it to withstand high-pressure applications and maintain structural integrity over a wide temperature range.
Workability: The alloy can be processed by both cold and hot working methods and can be welded, brazed, and fusion welded.
Applications
Due to its exceptional properties, ASTM B165 Monel 400 seamless pipe is widely used in demanding industries, including:
Marine and Seawater: Its corrosion resistance in fast-moving seawater makes it an ideal choice for marine equipment and piping.
Chemical Processing: Its excellent resistance to acids (hydrochloric, hydrofluoric, and sulfuric acids) makes it suitable for a variety of chemical plant equipment.
Oil and Gas: The alloy's strength and corrosion resistance are crucial in the extraction and processing of oil and gas.
Nuclear: Monel 400 has extensive use in nuclear power 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.
