Uns N04400 alloy cold drawn mirror polished tube
UNS N04400 alloy cold-drawn mirror-polished tubing (Monel 400) is a highly corrosion-resistant nickel-copper alloy with excellent strength and toughness, even at high temperatures. The cold-drawing process enhances mechanical properties and precise dimensions, while the mirror polish provides a smooth, aesthetically pleasing surface. This specialized tubing construction is well-suited for harsh environments, including seawater applications, various acids, and high-temperature steam systems.
What are the ASTM standards for Monel 400?
Monel 400 has multiple ASTM standards depending on the product form, such as ASTM B127 (for plate, sheet, and strip), ASTM B163 and B165 (for seamless and welded tubing), and ASTM B164 (for bar). Other standards include ASTM B564 (for flanges) and AMS (Aerospace Material Specifications), such as AMS 4574 (for specific applications).
ASTM B163 UNS N04400 Tubing Chemical Composition
| Alloy | Nickel | Copper | Manganese | Iron | Sulfur | Carbon | Silicon | Chromium |
| UNS N04400 | 63.0 min | 28.0 – 34.0 | 2.0 max | 2.5max | 0.024 max | 0.3max | 0.5 | … |
ASTM B163 UNS N04400 Pipe Mechanical Properties
| Material and Condition | Tensile Strength Min. Ksi(MPa) | Yield Strength(0.2% Offset)Min,Ksi(MPa) | Elongation in 2in. or 50mm(or 4D)min. % | Rockwell Hardness(or Equivalent) for Annealed Ends[Note(1)] |
| Stress-relieved Alloy UNS N04400: | 85(586) | 55(379) | 15 | B75max |
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 |
Cold Drawing and Mirror Polishing
Cold Drawing: This manufacturing process increases the alloy's strength and toughness, while achieving precise dimensions and a cleaner surface finish.
Mirror Polishing: Mirror polishing creates a highly smooth, reflective surface, often required for certain aesthetic or functional applications.
Main Applications
Marine and Coastal Environments: Its excellent resistance to seawater and marine environments makes it suitable for offshore engineering and coastal infrastructure.
High-Temperature Systems: It is used in steam and feedwater piping, as well as heat exchangers operating at high temperatures.
Chemical Processing: The alloy's resistance to sulfuric acid, hydrofluoric acid, and other corrosive media makes it useful in chemical plants and in the manufacture of chlorinated plastics.
Oil and Gas: It is used in refinery crude oil tower transfer piping and components such as propellers and pump shafts.
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.
