Monel 400 alloy seamless annealed tube
Monel 400 alloy seamless annealed tubing offers high strength, good ductility, and excellent corrosion resistance to seawater, steam, acids, and bases. However, it cannot be hardened by heat treatment and requires cold working to improve its strength. This nickel-copper alloy maintains good mechanical properties at temperatures ranging from subzero to approximately 1,000°F (538°C), making it widely used in marine, chemical processing, and oil and gas applications.
What is the annealing temperature for Monel 400?
Heating should be performed in a sulfur-free, reducing atmosphere. Annealing temperatures range from 750 to 800°F, but 800 to 800°F is most typical. Lower annealing temperatures (e.g., 750 to 800°F) allow for longer annealing times to minimize grain coarsening.
Alloy 400 Pipes Materials Selection And Specification
| ASTM Specification | ASTM B 165 ASME SB 165 / ASTM B 725 ASME SB 725, UNS 4400 Pipe |
|---|---|
| Standard | ASTM, ASME, JIS, AISI, AMS, EN, SAE, DIN, NF, TOCT, DS, DTD, GB |
| ASTM B165 monel 400 Seamless Pipe Size | 4 to 219mm W. T.: 0.5 to 20mm |
| UNS N04400 Welded Pipe Size | 5.0 - 1219.2 mm |
| Monel WERKSTOFF NR. 2.4360 EFW Pipe size | 5.0 - 1219.2 mm |
| Swg & Bwg | 12 Swg., 10 Swg., 16 Swg., 14 Swg., 20 Swg., 18 Swg., |
| 400 Monel Pipe Schedule | XS, SCH30, SCH40, XXS, SCH80, SCH120, SCH60, SCH140, STD, SCH10, SCH10S, SCH40S, SCH80, SCH20, SCH5, SCH160 |
| monel 400 pipe Length | Double Random, Single Random, Standard & Cut length Pipe |
| ASTM B829 monel 400 welded pipe Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF, NO.1, NO.4, 2B, BA, HL, 8K, Mirror finish, etc |
| ASTM B775 monel 400 pipe Form | monel 400 are available in form of Round, Square, Hollow, Rectangular, Hydraulic, Coiled, Straight Pipes, "U" Shape, Pan Cake Coils etc. |
| Type of 400 Alloy Pipe | Seamless / ERW/ EFW / Welded / Fabricated / CDW / DOM / CEW monel 400 |
| ASTM B730 monel 400 pipe End | Plain End, Beveled End, Treaded Pipe, Screwed ends |
Physical Properties of Monel 400 Rectangular Pipes
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.8 gm/cm3 | 0.318 lb/in3 |
UNS N04400 Pipes Composition Standard
| Monel 400 | S | Ni | Fe | C | Si | Al | Mn | Cu |
| 0.02 max | 63.0 min | 1.0 – 2.5 | 0.3 max | 0.5 max | 0.50 max | 2.0 max | 28.0 – 34.0 |
ASTM B165 UNS N04400 Pipe Mechanical Characteristics
| Density | Yield Properties (0.2%Offset) | Melting Point | Elongational | Tensile Properties |
| 8.8 g/cm3 | Psi – 35,000 , MPa – 240 | 1350 °C (2460 °F) | 40 % | Psi – 80,000 , MPa – 550 |
Annealed Condition Description
Annealed: In the annealed state, the tubing is relatively soft and has greater ductility, but lower mechanical strength.
Cold Working: To achieve high strength, annealed tubing is cold worked to introduce dislocations into the crystal structure, thereby increasing its hardness and strength.
Common Applications
Marine Industry: Used in marine equipment, pumps, propeller shafts, and seawater applications.
Chemical Processing: Suitable for chemical processing equipment handling corrosive media such as acids and alkalis.
Oil and Gas: Used in crude oil stills, offshore oil drilling equipment, and heat exchangers.
Other Uses: Also used in valves, gas storage devices, and other components requiring moderate strength and corrosion resistance.
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.
