Introduction to ASTM B165 Monel 400 Nickel Alloy Seamless Steel Pipe
Introduction to ASTM B165 Monel 400 Nickel Alloy Seamless Steel Pipe
Monel 400 seamless pipe is made from a nickel-copper alloy known for its exceptional strength and excellent corrosion resistance, making it particularly suitable for use in seawater, brackish water, and various corrosive media, including hydrofluoric acid and alkaline solutions. Produced using a solid-state annealing process, these pipes are weld-free and offer high mechanical properties, maintaining excellent performance in harsh industrial environments ranging from cryogenic temperatures to 800°F (427°C). Key applications include the marine industry, chemical processing, oil and gas, and pulp and paper industries.
Will Monel 400 pipe rust?
The corrosion resistance of Monel 400 alloy pipe is particularly important in marine environments. It is widely used in marine components, including propeller shafts and fasteners, which are frequently exposed to seawater.
ASTM B165 Monel400 N04400 Seamless Nickel Alloy Steel Pipe
Monel 400 is a solid solution alloy composed of nickel and copper. The chemical composition of Monel 400 pipe is approximately 67% nickel and 23% copper. Like most nickel-containing alloys, this grade tends to exhibit high strength even at elevated temperatures. Although Monel 400 seamless pipe is not recommended for use at temperatures exceeding 1000°F (approximately 474°C),
This Monel alloy has a melting point between 1150°C and 1250°C (approximately 1160°C). This high melting point means that ASTM B165 Alloy 400 seamless pipe offers greater dimensional stability, especially at high temperatures, which typically cause changes in the molecular flow of metals, altering their physical appearance. Due to its higher copper content, ASTM B725 UNS N04400 welded pipe is preferred by the offshore industry for various operational applications. Copper is known for its diverse properties, making it an alloying agent in components like Monel 400 rectangular tubing, including resistance to seawater or saline solutions.
Another appeal of Monel 400 alloy square tubing in the marine industry is the alloy's low corrosion rate in fast-moving saltwater. These properties, combined with its excellent resistance to stress corrosion cracking found in many freshwater sources, make it an indispensable material.
ASTM B165 UNS N04400 Chemical Composition:
| Monel400 | Ni | C | Mo | Mn | Si | Fe | P | S | Co | Cr |
| 63.0 | 0.3 | / | 2.00 |
0.5 |
2.5 | / | 0.024 | / | / | |
ASTM B167 UNS N06601 Mechanical Properties:
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 8.8 g/cm3 | 1350 °C (2460 °F) | Psi – 35,000 , MPa – 240 | Psi – 80,000 , MPa – 550 | 40 % |
Specification Format of Nickel Alloy 400 Tube
| Specifications | ASTM B 165 ASME SB 165 / ASTM B 725 ASME SB 725 |
|---|---|
| Dimensions | ASTM, ASME and API |
| Size | 15″NB TO 150″NB IN |
| Specialized in | Large Diameter Size |
| Range | 6.35 mm OD upto 254 mm OD in 0.6 TO 20 mm thickness. |
| Type | Seamless / ERW / Welded / Fabricated |
| Form | Round, Hydraulic Etc |
| Length | Single Random, Double Random & Cut Length. |
| End | Plain End, Beveled End, Treaded |
Schedule List of UNS N04400 Tubing
| 1/8" IPS(.405"O. D.) | 3 1/2" IPS( 4.000"O. D.) |
|---|---|
| SCH 40, 80 | SCH 10, 40, 80, 160, XXH |
| 1/4" IPS(.540"O. D.) | 4" IPS(4.500"O. D.) |
| SCH 10, 40, 80 | SCH 10, 40, 80, 160, XXH |
| 3/8" IPS(.675"O. D.) | 5" IPS( 5.563"O. D.) |
| SCH 10, 40, 80 | SCH 10, 40, 80, 160, XXH |
| 1/2" IPS(.840"O. D.) | 6" IPS(6.625"O. D.) |
| SCH 5, 10, 40, 80, 160, XXH | SCH 5, 10, 40, 80, 120, 160, XXH |
| 3/4" IPS(1.050"O. D.) | 8 " IPS(8.625"O. D.) |
| SCH 10, 40, 80, 160, XXH | SCH 5, 10, 40, 80, 120, 160, XXH |
| 1" IPS:(1.315′O. D.) | 10" IPS(10.750"O. D.) |
| SCH 5, 10, 40, 80, 160, XXH | SCH 10, 20, 40, 80 (.500), TRUE 80(.500) |
| 1-1/4" IPS(1.660"O. D.) | 12" IPS(12.750"O. D.) |
| SCH 10, 40, 80, 160, XXH | SCH 10, 20, 40(.375), TRUE40(.406), SCH80(.500) |
| 1-1/2" IPS(1.900"O. D.) | 14" IPS(14.000"O. D.) |
| SCH 10, 40, 80, 160, XXH | SCH10 (.188), SCH40 (.375) |
| 2" IPS(2.375"O. D.) | 16" IPS(16.000"O. D.) |
| SCH 10, 40, 80, 160, XXH | SCH10(.188), SCH40(.375) |
| 2 1/2" IPS(2.875"O. D.) | 18" IPS (18.000"O. D.) |
| SCH 10, 40, 80, 160, XXH | SCH-40 (.375) |
| 3" IPS( 3.500"O. D.) | |
| SCH 5, 10, 40, 80, 160, XXH |
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
