Type: UNS N04400 Seamless Pipe
Material: Monel 400 (UNS N04400/DIN W.Nr. 2.4360/2.4361)
- Pipe OD: 141 MM; WT: 9.53 MM
Standard: ASTM B167
Length: Normally fixed length 6m, can as per customer’s requirement.
End: Beveled End,Plain End
What is Monel 400?
UNS N04400 or DIN W.Nr. 2.4360/2.4361, Monel 400 (also known as “Alloy 400”) is a solid-solution nickel-copper alloy with high strength and excellent resistance in a range of media, including seawater, hydrofluoric acid, sulfuric acid and alkalies. The Alloy 400 is also very resistant to stress-corrosion cracking and pitting corrosion in most fresh and industrial waters. Monel 400 is widely used in many fields such as marine engineering, chemical and hydrocarbon processing equipment, valves, forgings, shafts, flanges, pipe fittings, fasteners, and heat exchangers.
Equivalent Material of Monel 400
|Monel 400||2.436||N04400||NW 4400||NA 13||МНЖМц 28-2,5-1,5||NU-30M||NiCu30Fe|
Chemical Composition Requirements of Monel 400
|The Chemical Composition of Monel 400, %|
Physical Properties of Monel 400
|Density||Melting Range||Curie Temperature||Electrisity Resistivity|
Mechanical Properties of Monel 400
Production chart of UNS N04400 Seamless Pipe
1. Cold Rolling (Cold drawn) Pipe Production Processes
Round Pipe Billet → Heating → Perforation → Head → Annealing → Pickling → Oil (Copper) → Multi Pass Drawing (Cold Rolling) → Billet → Heat Treatment → Straightening → Water Pressure Test → Marking → Storage
2. Hot Rolling Pipe Production Processes
Round Pipe Billet → Heating → Perforation → Three Roll Skew Rolling, Continuous Rolling or Extrusion → Off Pipe → Sizing (Or Reducing Diameter)→ Cooling → Billet → Straightening → Water Pressure Test ( Or Flaw Detection) → Marking → Storage
3. Longitudinal Welding (Straight Seam Welding) Pipe Production Processes
Including ERW, EFW.
Steel pipe wall thickness (ASME B36.10 & B36.19)
|Nominal Pipe Size||Outside diameter||Wall thickness|
|SCH 5S||SCH 10S||SCH STD (40S)||SCH XS||SCH 160S||SCH XXS|
|The dimensions are in millimeters|
|Sources : ASME B36.19, ASME B36.10|
PERMISSIBLE VARIATIONS IN OUTSIDE DIAMETERA AND WALL THICKNESS Permissible Variations In Outside Diametera And Wall Thickness
- (1) Pipe and tube having a nominal wall thickness fo 3% or less of the nominal ouside diameter. The mean outside diameter shall conform to the permissible variations of Table 3 and individual measurements (including ovality) shall conform to the plus and minus values of the table, with the values increased by 0.5% of the nominal ouside diameter.
- (2) The mean ouside diameter for pipe and tube over 4 1/2 in. (114 mm) in outside diameter with a nominal wall thickness greater than 3% of the nominal ouside diameter shall conform to the permissible variations of this table, and individual measurements shall not exceed twice the permissible variations of the table.
|Specified Outside Diameter||Permissible Variations|
|Outside||Thickness of Specified||Thickness of Specifined|
|Diameter, in (mm)||Average Wall, %||Minimum Wall, %|
|Cold-Worked Pipe and Tube:|
|0.500(13) to 5/8(16), excl||0.005(0.13)||0.005(0.13)||15||15||30||0|
|5/8(16) to 1 1/2(38), incl||0.0075(0.19)||0.0075(0.19)||10||10||20||0|
|Over 1 1/2(38) to 3 1/2(89), incl||0.010(0.25)||0.010(0.25)||10||10||22||0|
|Over 3 1/2(89) to 4 1/2(114), incl||0.015(0.38)||0.015(0.38)||10||10||22||0|
|Over 4 1/2(114) to 3 1/2(152), incl||0.020(0.51)||0.020(0.51)||12.5||12.5||25||0|
|Over 6(152) to 6 1/2(168), incl||0.25(0.64)||0.25(0.64)||12.5||12.5||25||0|
|Hot-Finished Tube A,B:|
|1 1/2(38.1) to 5 1/2(139.7), excl||0.031(0.79)||0.031(0.79)||12.5||12.5||28.5||0|
|5 1/2(139.7) to 9 1/2(234.5) incl||0.047(1.19)||0.047(1.19)||12.5||12.5||28.5||0|
- A. The wall thickness tolerances for hot-finished tubes includeseccentricity tolerance up to ±12.5%.
- B. For hot-finished 5 in. (127.0mm) and under in outside diameter, the tolerances on the ouside diameter apply for individual measurements and include ovality. For tubes over 5 in. ion outside diameter, the mean ouside diameter shall comform to the permissible variations of this table andindividual measurements shall not be twice the permissible variations for this table.
Applications of Monel 400 (UNS N04400)
Some typical applications for alloy 400 are:
- Chlorinated solvents
- Crude oil distillation towers
- Ethyl chloride purification
- HF alkylation
- HF reboilers
- Marine components
- Marine splash zone sheathing
- MEA reboilers
- Oil well recovery pumps
- Salt production
- Salt residual compounds
- Wire netting for insulation
Corrosion Resistance of Monel 400 (UNS N04400)
Alloy 400 is virtually immune to chloride ion stress corrosion cracking in typical environments. Generally, its corrosion resistance is very good in reducing environments, but poor in oxidizing conditions.
Alloy 400 is resistant to most alkalis, salts, waters (including saline or brackish), food products, organic substances and atmospheric conditions at normal and elevated temperatures.
This alloy is not useful in highly oxidizing acids, such as nitric and nitrous. It is resistant to sulfuric acid in concentrations to 80% and in hydrochloric solutions in concentrations to 20%.
Oxidizing impurities such as ferric chloride, ferric sulfate, chromates, nitrates, peroxides, and cupric salts, can cause attack in a medium which would otherwise be relatively mild for the alloy.
Workability of Monel 400 (UNS N04400)
Hot Working/Cold Working
Alloy 400 is readily hot or cold worked. The hot working range is 1700°F to 2150°F. Optimum working temperature is appoximately 2000°F. Finished fabrications can be produced to a rather wide range of mechanical properities by proper control of the amount of hot and/or cold work and by the selection of proper thermal treatments.
Machinability of Monel 400 (UNS N04400)
The alloy can be machined at satisfactory rates with machine tools generally employed by industry. Generally, cold drawn or cold drawn-stress relieved material is suggested for best machinability and smoothest finish.
Joining of Monel 400 (UNS N04400)
The alloy can be welded, brazed or soldered. Gas or electric welding methods can be employed. When gas welding, the flame must be closed to neutral (on the reducing side), and the work must be done rapidly without rewelding.
Heat Treatment of Monel 400 (UNS N04400)
Both cold worked and hot worked Alloy 400 may be annealed or stress relieved for the desired combination of strength and ductility and to minimized distortion during subsequent machining.
Annealing of Monel 400 (UNS N04400)
Heating should be done in a sulfur-free reducing atmosphere. The annealing range is 1300 to 1800°F, however 1600 to 1800°F is most typical. The lower annealing temperatures (e.g. 1300 to 1500°F) can be utilized with longer times at temperature to minimize grain coarsening.
Stress Relieving of Monel 400 (UNS N04400)
Stress relieving will reduce stresses without recrystallizing the grain structure. Heating to 1000/1050°F for 1 to 2 hours will relieve strains in either hot or cold worked products.