Monel 400 Plate (UNS N04400 / W.Nr. 2.4360)
High-strength corrosion-resistant alloy plates for Marine and Chemical Processing
SEATHER TECHNOLOGY supplies Monel 400 plates (UNS N04400) — a nickel-copper alloy renowned for its exceptional corrosion resistance, high strength, and excellent mechanical properties. This alloy performs reliably in acidic, alkaline, and marine environments, making it one of the most versatile materials for corrosive service applications.
Our Monel 400 plates are manufactured in strict accordance with ASTM B127 standards, ensuring stable chemical composition, uniform thickness, and consistent mechanical performance. Produced through a hot rolling process, each plate achieves superior dimensional accuracy and surface integrity, making it suitable for high-demand industrial and marine applications.
Thanks to its excellent machinability and weldability, Monel 400 is widely used in the marine engineering, chemical processing, and desalination industries. Typical applications include seawater desalination units, heat exchangers, chemical process equipment, and seawater handling systems.
SEATHER TECHNOLOGY offers Monel 400 plates in various sizes and thicknesses, with optional surface treatments such as polishing, sandblasting, and pickling to meet specific project requirements. As an ISO-certified nickel alloy supplier, we are dedicated to providing premium-quality materials and responsive customer service to support your critical applications.
Monel 400 Plate (UNS N04400) Specifications & Srtandard
- Thickness Range: 2.5mm ~ 50mm (For thickness < 2.5mm, please refer to Monel 400 nickel alloy sheet)
- Width Range: 50mm ~ 2000mm
- Length: 100mm ~ 6000mm
- Customized size needs to be confirmed with our team
- Grades: 400 / UNS N04400 / W.Nr. 2.4360
- Standards: ASTM B127
ASME SB 127
BS3072NA13
BS3073NA13
SAE AMS 4544
DIN 17750
QQ-N-281 - Delivery State: Hot Rolled
- Finish: No.1, 1D, Pickled or as per demand
- Brand: SEATHER TECHNOLOGY, Special Metals(SMC), HAYNES International, VDM Metals, ATI, etc.
Monel 400 Plate (UNS N04400) Applications & Usages
Monel Alloy 400 can be used in a variety of applications including:
- Packed columns
- Pressure vessels and reactors
- Brine heaters
- Heat exchangers
- Salt production equipment
- Pump and valve components
- Pipe work and pipe spools
Monel 400 Plate (UNS N04400) Drawing & Formula
Formula: m = W (m) × THK (mm) × L (m) × ρ (g/cm³)
W = Width, THK = Thickness, L = Length, ρ = Density
What is Monel 400 (UNS N04400)
Alloy 400 also referred to as the UNS N04400/W.Nr. 2.4360 alloy.
It is a solid-solution alloy that can be hardened only by cold working.
It has high strength and toughness over a wide temperature rangeand excellent resistance to many corrosive environments.
Alloy 400 is widely used in marine and chemical process industries due to its excellent corrosion resistance in selected mediums.
Monel 400 Plate (UNS N04400) Chemical Composition
Grade | % | Ni | Cu | Fe | C | Mn | Si | S |
Alloy 400/UNS N04400 | Min | Bal | 28 | |||||
Max | 34 | 2.5 | 0.3 | 2 | 0.5 | 0.024 |
Monel 400 Plate (UNS N04400) Mechanical Properties
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.80 g/cm3 | 1350 °C (2460 °F) | 500-950Mpa | 200-900Mpa | 60% – 2% |
Monel 400 Plate (UNS N04400) Physical Properties
| Melting Range | Specific Heat, 20°C (J/(g.K)) | Magnetic Permeability (20°C) | Thermal Conductivity, 20°C (W/(m.K)) | Curie Temperature (°C) |
| 1350 °C (2460 °F) | 427 | – | 21.8 | 21-49 |
Metal Cutting Service
Custom Metal Cutting Services For Diverse Industries
CNC Machining Services
Custom CNC machining parts in nickel alloy and stainless steel delivery in as fast as 3 days
Sheet Metal Fabrication
SEATHER’s custom sheet metal fabrication services offer a fast and cost-effective solution for your projects.
Metal Welding Service
Seather provides some of the best solutions ranging from custom metal welding and related services.
More Information About Monel 400 Plate (UNS N04400)
When you choose to buy Monel 400 Plate (UNS N04400), there have some important points we need to know before we get started.
Pitting resistance equivalency numbers (PREN) for Monel 400
Monel 400 PREN: 40.0
The pitting resistance equivalency number uses the alloy’s chemical makeup to guess its power against pitting corrosion. You check how much chromium, molybdenum, tungsten, and nitrogen are in the alloy. These elements help keep the steel safe. The most used formula is:
PREN = CR% + 3.3 x (MO% + 0.5 x W%) + 16 x N%How to Purchase Monel 400 Plate
When purchasing plates, it’s essential to have the right materials and information to ensure a smooth procurement process and to get the products that meet your needs.
Here’s what you need to provide:
1. Material: Specify the grade material, Monel 400 (UNS N04400)
2. Size: Specify the plate’s thickness, width, length
3. Quantity: Provide the exact number of plates required for an accurate quotation.
4. Technical specifications: Include technical specifications and drawings. If there are unique design requirements, detailed drawings can be attached.
5. Quality standards: Specify quality standards and inspection requirements, such as the need for third-party inspection, material certification, and inspection reports.
6. Special requirements: Specify any special surface treatment, polishing, corrosion resistance requirements, etc.
7. Packaging requirements: If there are specific packaging needs, such as protective or anti-corrosion packaging, please specify.
8. Delivery time: Specify the expected delivery time and location.
By preparing the above information, you can streamline the process of purchasing plates and ensure that you receive high-quality products that meet your requirements.
Conclusion
We have introduced our products briefly. If you want to know more about it, you can check the article here Monel 400: Composition, Properties and Applications.
If you need to purchase alloy plates, please get in touch with us immediately.
Trademark Notices:
Inconel®, Incoloy®, and Monel® are registered trademarks of Special Metals Corporation.
Hastelloy® is a registered trademark name of Haynes International, Inc.
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