Monel 400 tube is resistant to both rapidly flowing brackish water and flowing seawater or brine. This is why the Monel 400 tube is used almost exclusively in marine industry applications.
The 400 Monel Bright Annealed Tube is subjected to annealing at a temperature of 926°C. The majority of manufacturers of monel 400 tube note that the alloy can withstand both hydrofluoric acid and hydrochloric acid when de-aerated. The 400 Monel Heat Exchanger Tube is able to offer some resistance to hydrochloric acid and sulfuric acid at modest temperatures and concentrations, despite the fact that the alloy is rarely considered to be the best material for applications containing these acids. The Monel 400 High Pressure Tube’s superior resistance to neutral and alkaline salt has been emphasized by manufacturers and suppliers.
Additionally, the monel 400 seamless tube exhibits high resistance to alkalis. In the presence of nitric acid and ammonia in the piping systems, Monel 400 is rapidly attacked due to the higher copper content of the Monel 400 Sanitary Tube. One of the few alloys that can be used at high temperatures is the Monel 400 Electropolish Tube. This is due to the fact that the Monel 400 Decorative Tube maintains its excellent mechanical properties even when subjected to temperatures as high as 1020 degrees Fahrenheit.

Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr |
Monel 400 | 0.30 max | 2.00 max | 0.50 max | 0.24max | 28.0-34.0 | 2.50 max | 63.00 min | – |
MONEL 400 TUBE MECHANICAL PROPERTIES
Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
Monel 400 | 8.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80,000 , MPa – 550 | Psi – 35,000 , MPa – 240 | 40 % |
EQUIVALENT GRADES FOR MONEL 400 TUBE
STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
Monel 400 | 2.4360 | N04400 | NW 4400 | NA 13 | МНЖМц 28-2,5-1,5 | NU-30M | NiCu30Fe |
MONEL 400 TUBE SPECIFICATION
ASTM B163 Alloy 400 Tubing Standards |
: |
ASTM B163/ ASME SB163, ASTM B730/ ASME SB730 UNS 4400 Tubing |
ASTM B163 Alloy 400 Seamless Tube Size |
: |
3.35 mm OD To 101.6 mm OD |
ASTM B163 Alloy 400 Welded Tube Size |
: |
6.35 mm OD To 152 mm OD |
ASTM B730 Monel 400 Tubing Swg & Bwg |
: |
10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
Inconel WERKSTOFF NR. 2.4360 Tube wall thickness |
: |
0.020″ –0.220″, (special wall thicknesses available) |
Monel UNS N04400 Tubing Length |
: |
Single Random, Double Random, Standard & Cut length Tube |
Inconel WERKSTOFF NR. 2.4360 Tubing Finish |
: |
Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF |
Form |
: |
‘U’ bent, Hollow, Hydraulic, LSAW, Boiler, Straight Tube, Tube Coil, Round, Rectangular, Square Etc |
Types of 400 Alloy Tubing |
: |
Seamless, ERW, EFW, Welded, Fabricated Tube / Tubing |
400 Alloy Tube End |
: |
Plain End, Beveled End, Treaded Tube |
Marking |
: |
All ASTM B163 Monel 400 Tubing are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer’s request.) |
Application & uses of Monel 400 Tube |
: |
Oil Tube, Gas Tube, Fluid Tube, Boiler Tube, Heat exchanger Tube, |
Value Added Service |
: |
Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc. |
Specialize in |
: |
ASTM B163 Monel 400 Capillary Tube & Other Odd Size |
Test Certificate |
: |
Manufacturer Test Certificate |
Manufacturers of Monel 400 Tube |
: |
|
USAGE & APPLICATION OF MONEL 400 TUBE
- Feed water and steam generator tubing.
- Brine heaters, sea water scrubbers in tanker inert gas systems.
- Sulfuric acid and hydrofluoric acid alkylation plants.
- Pickling bat heating coils.
- Heat exchangers in a variety of industries.
- Transfer piping from oil refinery crude columns.
- Plant for the refining of uranium and isotope separation in the production of nuclear fuel.
- Pumps and valves used in the manufacture of perchlorethylene, chlorinated plastics.
- Monoethanolamine (MEA) reboiling tube.
Our Overseas Dealers table
UAE, Bahrain, Italy, Indonesia, Malaysia, United States, Mexico, Jordan, Vendula, Brazil, Peru, Nigeria, Kuwait, Oman,
Thailand (Bangkok), Iran, Germany, UK, Canada, Russia, Turkey, Australia, New Zealand, Sri Lanka, Vietnam, South Africa,
Kazakhstan, Saudi Arabia, Yemen, Algeria, Kenya, Sudan, Tunisia, Nepal, Bhutan, Pakistan, Bangladesh, Katand, Mozambique,
Egypt, Spain, Chile, Argentina, Tanzania, Singapore.
Our Overseas Dealers table
UAE, Bahrain, Italy, Indonesia, Malaysia, United States, Mexico, Jordan, Vendula, Brazil, Peru, Nigeria, Kuwait, Oman,
Thailand (Bangkok), Iran, Germany, UK, Canada, Russia, Turkey, Australia, New Zealand, Sri Lanka, Vietnam, South Africa,
Kazakhstan, Saudi Arabia, Yemen, Algeria, Kenya, Sudan, Tunisia, Nepal, Bhutan, Pakistan, Bangladesh, Katand, Mozambique,
Egypt, Spain, Chile, Argentina, Tanzania, Singapore.
Mumbai, Delhi, Bangalore, Hyderabad, Ahmedabad, Chennai, Kolkata, Surat, Pune, Nagpur, Indore, Bhopal, Visakhapatnam,
Vadodra, Nashik, Faridabad, Rajkot, Aurangabad, Ranchi, Coimbatore, Raipur, Mysore, Bhubaneswar, Salem, Bhilai, Bikaner
Our Domestic Supply table
Our Domestic Supply table
Mumbai, Delhi, Bangalore, Hyderabad, Ahmedabad, Chennai, Kolkata, Surat, Pune, Nagpur, Indore, Bhopal, Visakhapatnam,
Vadodra, Nashik, Faridabad, Rajkot, Aurangabad, Ranchi, Coimbatore, Raipur, Mysore, Bhubaneswar, Salem, Bhilai, Bikaner
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