B 165, B 829 MONEL 400 UNS N04400 DIN 2.4360 SEAMLESS PIPE AND TUBE
Monel 400, Alloy 400, Nickel 400, Nickelvac 400, Nicorros 400.
Monel Alloy 400 (UNS N04400; W.Nr. 2.4360, NiCu30Fe) is a solid-solution alloy that can be hardened only by cold working. It has high strength and toughness over a wide temperature range and excellent resistance to many corrosive environments.
Form | ASTM |
Rod, bar and wire | B 164 |
Plate, sheet and strip | B 127, B 906 |
Seamless pipe and tube | B 165, B 829 |
Welded pipe | B 725, B 775 |
Welded tube | B 730, B 751 |
Welding fitting | B 366 |
Forging | B 564 |
Chemical composition
% | Ni | Cu | Fe | C | Mn | Si | S |
min | 63.0 | 28.0 | | | | | |
max | | 34.0 | 2.5 | 0.30 | 2.00 | 0.50 | 0.024 |
Physical properties
Density | 8.80 g/cm3 |
Melting range | 1300-1350℃ |
Features: Monel 400 has excellent resistance to corrosion by many reducing media such as sulfuric and hydrochloric acids. It is generally more resistant to corrosion by oxidizing media than higher copper alloys. Monel 400 resists pitting and stress corrosion cracking in most fresh and industrial waters. It has good resistance in flowing seawater, but under stagnant conditions, pitting and crevice corrosion is induced. Monel 400 is probably the most resistant to hydrofluoric acid in all concentrations up to the boiling point, of all engineering alloys. Monel 400 is notable for its toughness, it does not show embrittlement tendency at cryogenic temperatures. It is work hardenable.
Applications: Chemical process equipment, crude oil stills, gasoline and fresh water tanks, marine engineering equipment, valves, pumps and fasteners.
Alloy | ASTM | DIN | BS | AFNOR |
Monel 400 | UNS N04400 | 2.4360 / NiCu30Fe | NA 12 | Nu 30 |
Monel K-500 | UNS N05500 | 2.4375 | | | | |
