Information about the properties of UNS N04400 nickel alloy annealed tube
Information about the properties of UNS N04400 nickel alloy annealed tube
UNS N04400 pipe (Monel 400) is a nickel-copper alloy known for its excellent corrosion resistance to seawater, non-oxidizing acids, and salts, particularly in freshwater and industrial waters, where it offers excellent resistance to stress corrosion cracking and pitting. In the annealed condition, the pipe is easy to form and fabricate and exhibits good mechanical properties, including strength and toughness over a wide temperature range, from sub-zero to approximately 550°C. It is non-magnetic, has excellent thermal conductivity, and low electrical resistivity.
What are the properties of Monel alloy 400 at high temperatures?
This alloy offers moderate strength, good weldability, good corrosion resistance, and toughness. Its operating temperature range is up to 1000°F (538°C). Alloy 400 offers excellent corrosion resistance in fast-moving brackish or seawater environments where resistance to cavitation and corrosion is required.
Monel Alloy 400 Tube Material Specification Chart
| ASTM B163 Alloy 400 Tubing Standards | ASTM B163/ ASME SB163, ASTM B730/ ASME SB730 UNS 4400 Tubing |
|---|---|
| ASTM B163 Alloy 400 Seamless Tube Size | 3.35 mm OD To 101.6 mm OD |
| ASTM B163 Alloy 400 Welded Tube Size | 6.35 mm OD To 152 mm OD |
| ASTM B730 Monel 400 Tubing Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
| Inconel WERKSTOFF NR. 2.4360 Tube wall thickness | 0.020" –0.220", (special wall thicknesses available) |
| Monel UNS N04400 Tubing Length | Single Random, Double Random, Standard & Cut length Tube |
| Inconel WERKSTOFF NR. 2.4360 Tubing Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF |
| Form | 'U' bent, Hollow, Hydraulic, LSAW, Boiler, Straight Tube, Tube Coil, Round, Rectangular, Square Etc |
| Types of 400 Alloy Tubing | Seamless, ERW, EFW, Welded, Fabricated Tube / Tubing |
| 400 Alloy Tube End | Plain End, Beveled End, Treaded Tube |
| Marking | All ASTM B163 Monel 400 Tubing are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer's request.) |
| Application & uses of Monel 400 Tube | Oil Tube, Gas Tube, Fluid Tube, Boiler Tube, Heat exchanger Tube, |
UNS N04400 nickel alloy annealed tube Chemical Composition
| Grade | C | Mn | Si | S | Cu | Fe | Ni |
| Monel 400 | 0.30 max | 2.00 max | 0.50 max | 0.24 max | 28.0-34.0 max | 2.50 max | 63.00 max |
UNS N04400 nickel alloy annealed tube Mechanical Properties
| Element | Density | Melting Range | Tensile Stress | Yield Stress (0.2%Offset) | Elongation |
| Monel 400 | 8.8 g/cm3 | 1350 °C (2460 °F) | Psi - 80,000 , MPa - 550 | Psi - 35,000 , MPa - 240 | 0.4 |
Annealing and Cold Working
Annealed: The tube is soft, ductile, and easy to form.
Cold Working: This process enhances mechanical properties, but requires more effort during manufacturing.
Typical Applications
Marine Engineering: Due to its resistance to seawater and saline solutions, it can be used to manufacture pump shafts, propellers, and fasteners.
Chemical Processing: Suitable for heat exchangers, storage tanks, and piping systems requiring acid and salt resistance.
Oil and Gas: Used in crude oil stills and process vessels.
Power Generation: Used in boiler feedwater heaters and deaerator heaters.
Other Applications: Electronic components, springs, and desalination plants.
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.
