ASTM B165 Monel400 / UNS N04400 Nickel-Copper Alloy Cold Finished Seamless Pipe
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ASTM B165 Monel400 / UNS N04400 Nickel-Copper Alloy Cold Finished Seamless Pipe
ASTM B165 specifies cold-worked seamless steel pipe made from UNS N04400 Pipe, a nickel-copper alloy known as Monel 400. This alloy offers high strength, toughness, and resistance to seawater and various corrosive environments, making it suitable for use in marine environments, chemical processing, and acidic environments such as hydrochloric and hydrofluoric acids (when degassed). Monel 400 pipe can be hardened only by cold working and maintains its properties over a wide temperature range.
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What is ASTM B564 UNS N04400 material?
ASTM B564 UNS N04400 flanges, also known as Monel alloy 400, are a nickel-based alloy with a certain amount of copper added. ASTM B564 UNS N04400 flanges typically exhibit high tensile strength over a wide temperature range, up to 1000 degrees Fahrenheit (approximately 477 degrees Celsius).
MONEL400/UNS N04400 Pipe Overview
Monel 400 pipe is a nickel-copper alloy resistant to high-temperature seawater and steam, as well as saline and alkaline solutions. Monel 400 is a nickel-copper alloy with excellent corrosion resistance in a wide range of media. Monel 400 pipe offers good corrosion resistance, excellent weldability, and medium to high strength. This alloy is widely used in a variety of applications. It exhibits excellent resistance to fast-flowing brackish or seawater, and is particularly resistant to degassed hydrochloric and hydrofluoric acids. The alloy is slightly magnetic at room temperature. Monel 400 alloy pipe is widely used in the chemical, petroleum, and marine industries.
Monel 400/UNS N04400 Cold Finished Seamless Pipe Features
It offers corrosion resistance in a wide range of marine and chemical environments, from pure water to non-oxidizing mineral acids, salts, and alkalis.
This alloy is more resistant to nickel under reducing conditions and better than copper under oxidizing conditions, but its resistance in reducing media is better than in oxidizing media. It exhibits good mechanical properties at temperatures ranging from sub-zero to approximately 480°C.
It exhibits good resistance to sulfuric and hydrofluoric acids. However, aeration can lead to accelerated corrosion rates. It can handle hydrochloric acid, but the presence of oxidizing salts greatly accelerates corrosion.
The alloy is resistant to neutral, alkaline, and acidic salts, but has poor resistance to oxidizing acidic salts (such as ferric chloride).
It exhibits excellent resistance to chloride ion stress corrosion cracking.
Chemical Composition of Monel 400/UNS N04400 Cold Finished Seamless Pipe
| Ni | C | Mn | S | Si | Cu | Fe | |
| Max | 0.3 | 2.00 | 0.024 | 0.5 | 34.0 | 2.50 | |
| Min | 63.0 | 28.0 |
Mechanical Properties of Monel 400/UNS N04400 Seamless 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 |
ASTM B165 UNS N04400 Tube Specification
| Grade | Monel 400 Tube (UNS No. N04400) |
|---|---|
| B165 Monel 400 Tubes Size | 15 NB to 150 NB IN |
| ASTM B165 Monel Tubing Wall Thickness | .035" -.095', (special wall thicknesses available) |
| Specialized in | Large Diameter Size |
| ASME SB165 N04400 Tubing Type | Seamless / ERW / Welded / Fabricated / Hollow |
| Monel 400 B165 Tubes Schedule | SCH5, SCH10, SCH40, STD, SCH80, SCH160 |
| Alloy 400 SB 165 N04400 Tubes Condition | astm b165 n04400 annealed, Hot-Finished, Cold-Drawn, Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF |
| Nickel Alloy 400 ASTM B165 N04400 Tubes Form | Round, Condenser, Hydraulic, Coiled, Heat-Exchanger, Capillary, Boiler, U-Tube, Rectangular, Square, Straight |
| ASTM B165 UNS NO 4400 Tubes Length | Single Random, Double Random & Cut Length. |
| End | Plain End, Beveled End, Treaded. |
Standard Specifications
ASTM B165:
This standard specifically covers the requirements for nickel-copper alloy (UNS N04400) in cold-finished seamless tubing.
ASME SB-165:
The ASME Boiler and Pressure Vessel Code standard for this material is ASME SB-165.
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, and we can provide customized alloy solutions tailored to customer needs. For alloy pricing inquiries or customized alloy solutions, please contact us for a quote at ss@gneemetal.com.
