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Product Overview
Introduction To Monel 400 / Alloy 400 / UNS N04400
MOKSH TUBES & FITTINGS LLP is a manufacturer, supplier, exporter, importer and stockist of a variety of MONEL 400 (UNS N04400) products such as Pipes & Tubes, Pipe Fittings, Flanges, Fasteners, Sheets & Plates, Coils, Wires, Round Bars, Flat Bars, Angles, Channels, Welding rods, Wire Mesh, and other Custom and Hard to Find MONEL 400 Products.
MONEL 400 is a solid-solution alloy of nickel and copper, known for its excellent corrosion resistance, particularly in marine and chemical environments. This alloy exhibits outstanding performance in brackish and saltwater, hydrofluoric acid, sulfuric acid, and alkali media. It offers high strength, toughness, and good weldability, making it ideal for handling corrosive and high pressure conditions. MONEL 400 retains its mechanical properties across a wide temperature range and performs reliably in both oxidizing and reducing conditions.
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MONEL® 400 Specifications (UNS N04400)
| Category | Details |
|---|---|
| Grade | MONEL® 400 / Alloy 400 / UNS N04400 |
| Material Type | Nickel–Copper Alloy |
| Typical Chemical Composition | Ni ≥63%, Cu 28–34%, Fe ≤2.5%, Mn ≤2%, Si ≤0.5% |
| Available Conditions | Annealed, Hot Worked, Cold Worked |
| Heat Treatment | Stress Relieving, Annealing |
| Testing Offered | Tensile, Hardness, Chemical Analysis, Corrosion Testing |
| Certification | EN 10204 3.1 / 3.2 (Mill Test Certificate) |
Chemical Composition of MONEL® 400
| Element | Composition (%) |
|---|---|
| Nickel (Ni + Co) | 63.0 min |
| Copper (Cu) | 27.0 – 33.0 |
| Carbon (C) | 0.25 max |
| Manganese (Mn) | 1.5 max |
| Iron (Fe) | 2.0 max |
| Sulfur (S) | 0.01 max |
| Silicon (Si) | 0.5 max |
| Aluminum (Al) | 2.30 – 3.15 |
| Titanium (Ti) | 0.35 – 0.85 |
Technical Composition of MONEL® 400
Physical Properties of MONEL® 400
| Property | Value |
|---|---|
| Density | 8.80 g/cm³ |
| Melting Range | 1300 – 1350 °C |
| Elastic Modulus (Tension) | 179 GPa |
| Elastic Modulus (Compression) | 179 GPa |
| Modulus of Rigidity | 66 GPa |
| Poisson’s Ratio | 0.32 |
| Curie Temperature | 21 – 49 °C |
Heat Treatment of MONEL® 400
| Process | Temperature Range | Procedure |
|---|---|---|
| Annealing | 760 – 980 °C | Air or furnace cooling |
| Stress Relieving | 540 – 650 °C | Hold 1–2 hours, air cool |
| Softening | 870 – 980 °C | Furnace cool |
| Recrystallization | 700 – 900 °C | Air cool |
| Hot Working Preparation | 850 – 950 °C | Uniform heating before forging |
Mechanical Properties of MONEL® 400
| Condition | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness |
|---|---|---|---|---|
| Annealed | 517 – 620 | 172 – 345 | 35 – 60 | 60 – 80 HRB |
| Hot Finished | 552 – 758 | 276 – 690 | 30 – 60 | 75 – 100 HRB |
| Cold Drawn | 579 – 827 | 379 – 690 | 22 – 40 | 85 – 20 HRC |
| Hot Rolled | 517 – 655 | 276 – 517 | 30 – 45 | 70 – 96 HRB |
| Sheet | 482 – 586 | 207 – 310 | 35 – 45 | 65 – 80 HRB |
Available Forms & Size Range – MONEL® 400
| Product Form | Size Range / Description |
|---|---|
| Round Bars | 10 mm – 350 mm |
| Flat, Square & Hex Bars | Custom sizes up to 250 mm |
| Sheets & Plates | 1.5 – 100 mm (Width 600 – 2500 mm) |
| Coils & Strips | 0.3 – 8 mm |
| Seamless & Welded Pipes / Tubes | OD 6 – 273 mm, WT 1 – 25 mm |
| Forged Components | Blocks, rings, bushings as per drawing |
International Standards & Equivalent Grades – MONEL® 400
| Standard | Equivalent Grade |
|---|---|
| UNS | N04400 |
| W.Nr (DIN) | 2.4360 / 2.4361 |
| ASTM | B127, B164, B165, B564, B725 |
| EN | NiCu30Fe |
| BS | NA 13 |
| JIS | NW 4400 |
| GOST | МНЖМц 28-2.5-1.5 |
Products in Monel 400
MONEL Alloy 400 , (UNS N04400) in a wide variety of formats, conveniently available from stock. We also source specialty sizes through trusted converters:
✔
Seamless Pipes
✔
Welded Pipes (ERW & EFW)
✔
Tubes (Capillary, U-Bend)
✔
Sheets & Plates
✔
Coils & Strips
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Round Bars, Flat Bars, Hex Bars, Square Bars
✔
Pipe Fittings (Elbows, Tees, Reducers, Caps, Stub Ends)
✔
Flanges (Weld Neck, Slip-On, Blind, Socket Weld, Threaded)
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Fasteners (Bolts, Nuts, Screws, Washers, Studs)
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Custom Fabricated Components
This alloy meets several recognized industry standards, including:
Uses and Advantages
Excellent resistance to seawater, acids, and alkalis
High strength and toughness over a wide temperature range
Exceptional corrosion resistance in marine and chemical processing environments
Good weldability and formability
Non-magnetic and suitable for high-conductivity applications
Applications of Monel R405
Monel 400 is a versatile nickel-copper alloy widely used in applications where excellent corrosion resistance, mechanical strength, and durability are required. It performs exceptionally well in marine, chemical, and high-temperature environments. Typical applications include:
Marine Engineering & Shipbuilding
Used in seawater-cooled heat exchangers, condenser tubes, propeller shafts, fasteners, seawater valves, and pump components due to outstanding resistance to saltwater and marine atmospheres.
Chemical & Petrochemical Processing
Ideal for processing and handling equipment such as storage tanks, process vessels, piping systems, heat exchangers, and pumps exposed to hydrofluoric acid, sulfuric acid, and caustic solutions.
Oil & Gas Industry
Preferred for downhole tools, pump shafts, safety valves, and heat exchangers operating in sour gas environments and offshore platforms.
Power Generation
Applied in boiler feedwater systems, condensers, superheaters, and brine heaters in power plants due to its resistance to saline and chemical media.
Aerospace & Defense
Used in fuel tanks, jet engine components, and hydraulic systems that require resistance to high stress, pressure, and corrosive fuels.
Desalination and Water Treatment
Employed in brine heaters, evaporators, and saltwater treatment components for long service life and minimal maintenance.
Electronic and Instrumentation
Selected for non-sparking, non-magnetic parts such as connectors, terminals, and housing components in sensitive electrical systems.
WHY CHOOSE US?
MONEL 400 Price (India)
Typical Range: ₹2,200 – ₹3,500 per kg
(Price varies by OD, wall thickness, form, and finish)
Contact us for exact quotation based on size and quantity.
FAQ's
What is Monel 400 and why is it widely used?
Monel 400 (UNS N04400) is a nickel-copper solid solution alloy well-known for its exceptional corrosion resistance in seawater, brackish water, chemical processing environments, and acidic conditions. It combines high strength, toughness, and good weldability, making it suitable for industries that demand durability and reliability in aggressive environments.
What types of Monel 400 products are available from Moksh Tubes & Fittings LLP?
Moksh Tubes & Fittings LLP manufactures, supplies, and exports a wide range of Monel 400 products including seamless and welded pipes, tubes, pipe fittings, flanges, fasteners, sheets, plates, coils, bars, wire mesh, welding rods, and custom engineered components, ensuring customers receive solutions tailored to their exact needs.
In which industries is Monel 400 most commonly used?
Monel 400 is widely used in marine engineering, chemical and petrochemical processing, oil and gas industries, desalination plants, aerospace, defense, power generation, and water treatment systems. Its excellent resistance to seawater, acids, alkalis, and high-pressure environments makes it indispensable in these sectors.
What are the key advantages of choosing Monel 400 over other alloys?
The main advantages of Monel 400 include outstanding resistance to seawater and salt spray, excellent toughness over a wide temperature range, good weldability and formability, and superior performance in both oxidizing and reducing conditions. These properties make it a cost effective solution for long-term, corrosion resistant applications.
Why choose Moksh Tubes & Fittings LLP for Monel 400 products?
Moksh Tubes & Fittings LLP is a trusted manufacturer and global supplier of Monel 400 with in depth expertise in high performance nickel alloys. The company ensures ISO certified quality, precision manufacturing, customized product solutions, timely global delivery, and exceptional customer support, making it the preferred choice for clients worldwide.
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