Lord Fin Tube--What is Monel 400 tube?
Monel 400 Tubes
High-performance nickel-copper alloy tubes engineered for extreme corrosion resistance in marine, chemical, and oil & gas applications
Chemical Composition
Mechanical Properties
Monel 400 Tubes Corrosion Resistance
- Exceptional resistance to seawater and saltwater environments (corrosion rate <0.025 mm/a):cite[2]:cite[4]
- Withstands sulfuric acid (<85% concentration), hydrochloric acid, and hydrofluoric acid:cite[2]:cite[3]
- Resists stress corrosion cracking in chloride and fluoride environments:cite[1]:cite[6]
- Maintains integrity in alkaline solutions and high-temperature steam:cite[4]:cite[5]
- One of few alloys suitable for hydrofluoric acid service:cite[2]:cite[3]
Monel 400 Tubes Industrial Applications
Chemical Processing
Pumps, valves, and heat exchangers handling corrosive chemicals like sulfuric and hydrochloric acid:cite[1]:cite[3]
Marine Engineering
Seawater desalination systems, shipbuilding components, and pump shafts for saltwater service:cite[1]:cite[5]
Oil & Gas
Downhole components, sour gas tubing, and crude oil distillation equipment:cite[3]:cite[4]
Aerospace
Aircraft exhaust systems requiring high-temperature strength and oxidation resistance:cite[4]
Nuclear Industry
Uranium refining equipment and isotope separation systems:cite[1]:cite[6]
Monel 400 Tubes Technical Features
- Manufacturing Formats: Seamless & welded tubes in round, square, rectangular profiles
- Wall Thickness: Thin-walled to heavy-walled configurations
- Heat Treatment: Custom heat treatment available for enhanced mechanical properties
- Welding Compatibility: Excellent weldability using GTAW/GMAW methods (ERNiCu-7 filler):cite[6]
- Standards Compliance: ASTM B127, ASME SB-127, DIN 2.4360, JIS NW4400:cite[5]
Custom Engineering Solutions
Our Monel 400 tube products include specialized U-bend configurations for heat exchangers and condensers. Custom dimensions, thicknesses, and certifications (including NACE MR0175) available for critical applications.
All tubes undergo ultrasonic testing and hydrostatic pressure verification to ensure compliance with ASME Boiler and Pressure Vessel Code requirements.