Gnee specializes in providing high-quality Monel 400 with full material certifications. We supply Monel Alloy 400 products including plates, coils, tubes, bars, fittings etc. All products meet ASTM standards and have a complete quality assurance system and complete certification. Factory price, free samples available.
Monel 400 Manufacturer
Gnee manufactures Monel 400 in common forms including sheet, coil, bar, tube, wire, forgings, flanges, and fittings. Gnee utilizes high-quality raw materials and specialized manufacturing techniques to ensure compliance with customer requirements and quality standards. Our Monel 400 products comply with international standards such as ASTM B127, ASTM B16, and ASTM B165. We also offer custom options, including raw materials and dimensions, to meet customer project requirements.
| Delivery Time | 30-50 days, 7 days for stock goods |
|---|---|
| Loading Port | Shanghai, Tianjin, Qingdao |
| Payment method and term | Wire transfer and letter of credit |
| Supply Ability | Up to 800 tons per month |
| Customization | Supports custom sizes, cutting, welding, and surface treatment |
We have rich Monel Material 400 Shapes in stock
Gnee is a leading manufacturer and global supplier of high-performance materials. We supply custom-sized Monel 400 plates, bars, and tubes, etc, meeting strict international quality standards. And we maintain extensive inventory for quick delivery of various Monel 400 product forms.
Monel 400 Tubes 
Monel 400 Flanges 
400 Seamless Pipe 
Monel 400 Plate 
Monel 400 Wire 
Monel 400 Coil 
Monel 400 Bar 
Monel 400 Flat Bar
Basic Information Of Monel 400 Product
The following is the product specifications of Monel alloy 400. If you need other more information, please contact us.
Description
Monel 400 is a high-performance nickel-copper alloy known for its exceptional corrosion resistance and mechanical properties across a wide range of temperatures and environments. With a composition of approximately 67% nickel and 23% copper, it provides superior resistance to seawater, acids, and alkalis, making it ideal for marine applications such as pump shafts, propeller shafts, and seawater valves.
Unlike stainless steel, Monel 400 resists stress corrosion cracking in chloride-rich environments, offering a distinct advantage in offshore and chemical processing industries. It retains high strength at temperatures up to 500°C and exhibits excellent weldability, ensuring easy fabrication into seamless pipes, plates, and fittings.
Monel 400 also finds use in hydrofluoric acid production and brine heaters, where its durability outperforms many conventional alloys, highlighting its versatility and reliability in demanding conditions.
alloy 400 Product Parameters
| Parameter | Value |
| Material Grade | Monel 400 |
| Forms Available | Plate, Sheet, Bar, Pipe, Fitting, Flange, Wire |
| Manufacturing Process | Hot Rolling, Cold Rolling, Forging, Welding |
| Chemical Composition | Ni: ≥63%, Cu: 28-34%, Fe: ≤2.5%, Mn: ≤2.0%, C: ≤0.3%, Si: ≤0.5% |
| Density | 8.80 g/cm³ |
| Melting Point | 1350-1390°C |
| Tensile Strength | ≥550 MPa |
| Yield Strength (0.2%) | ≥240 MPa |
| Elongation | ≥30% |
| Hardness | 65-80 HRB |
| Thermal Conductivity | 21.8 W/m·K (at 20°C) |
| Electrical Resistivity | 0.51 µΩ·m (at 20°C) |
| Application | Marine engineering, chemical processing, oil and gas, aerospace, electrical components |
| Surface Treatment | Polished, Pickled, Sandblasted, Bright Annealed |
| Service | Customization, Cutting, Welding, Testing |
What ASTM standards of Nickel alloy 400 can Gnee produce?
| ASTM Standard | Description |
| ASTM B127 | Specification for Monel 400 Plate, Sheet, and Strip |
| ASTM B164 | Specification for Monel 400 Rod, Bar, and Wire |
| ASTM B165 | Specification for Monel 400 Seamless Pipe and Tube |
| ASTM B366 | Specification for Monel 400 Fittings |
| ASTM B564 | Specification for Monel 400 Flanges, Forgings |
UNS N04400 material Equivalent grades
- UNS N04400
- W.Nr. 2.4360
- DIN NiCu30Fe
- JIS NW 4400
- BS NA 13
- AFNOR NU-30M
Parameter Information
Chemical Parameters
| Element | Percentage (%) |
| Nickel (Ni) | 63.0 min |
| Copper (Cu) | 28.0-34.0 |
| Iron (Fe) | 2.5 max |
| Manganese (Mn) | 2.0 max |
| Silicon (Si) | 0.5 max |
| Carbon (C) | 0.3 max |
| Sulfur (S) | 0.024 max |
Mechanical Properties
| Property | Value |
| Tensile Strength | ≥550 MPa |
| Yield Strength (0.2%) | ≥240 MPa |
| Elongation | ≥30% |
| Hardness | 65-80 HRB |
Physical Property
| Property | Value |
| Density | 8.80 g/cm³ |
| Melting Point | 1350-1390°C |
| Thermal Conductivity | 21.8 W/m·K (at 20°C) |
| Electrical Resistivity | 0.51 µΩ·m (at 20°C) |
| Modulus of Elasticity | 179 GPa |
| Coefficient of Expansion | 13.9 µm/m·°C (20-100°C) |
Size Chart Of Monel 400 Products
Monel 400 Plate Dimensions Specification
| Parameter | Specification Range | Unit |
| Thickness | 0.1 mm – 100 mm | mm |
| Width | 10 mm – 2500 mm | mm |
| Length | Custom, typically 0.1 m – 6 m | m |
| Standard | ASTM B127, UNS N04400 | – |
Monel 400 Tube Dimensions Specification
| Parameter | Specification Range | Unit |
| Outer Diameter (OD) | 3 mm – 219.1 mm | mm |
| Wall Thickness | 0.4 mm – 12.7 mm | mm |
| Length | Single, double random length or cut length | m |
| Standard | ASTM B165 (Seamless), B725 (Welded) | – |
Monel 400 Rod Dimensions Specification
| Parameter | Specification Range | Unit |
| Diameter – Round Bar | 3 mm – 600 mm | mm |
| Length | 100 mm – 6000 mm | mm |
| Other Shapes | Hex: 3 mm – 180 mm; Flat Bar Thickness: 0.5 mm – 200 mm; Square Bar: 2 mm – 200 mm | mm |
| Standard | ASTM B164 | – |
Monel 400 Wire Dimensions Specification
| Parameter | Specification Range | Unit |
| Diameter | 0.15 mm – 4.5 mm (0.006″ – 0.177″) | mm |
| Length | Coil or straight wire, 1000 mm or more | mm |
| Other Specifications | Mesh Specifications: 1″ x 1″ grid etc. | – |
| Standard | ASTM B164, AMS 4675 | – |
What are the features of Monel 400?
Monel 400 is known for its excellent corrosion resistance and mechanical properties.
Extraordinary Corrosion Resistance
Excellent Mechanical Properties
Wide Applications
Application Of Monel 400 Products
After decades of verification, Gnee has a mature production process, and Monel 400 has been supplied to the following industries around the world
Monel 400 Sheet/strip
- Chemical containers and storage tanks
- Reactor linings
- Heat exchanger tube sheets
- Marine structure jacketing
Monel 400 bar & Forgings
- Pump and propeller shafts
- Valve assemblies
- Agitator shafts
- Flanges and fasteners
Monel 400 tube/pipe
- Heat exchanger tubes, seawater pipelines
- Oil and gas pipelines
- Chemical raw material pipelines
- Power plant feedwater/steam generator pipes
Monel 400 wire
- Welding wire
- Springs
- Electronic components
- Woven filter
Gnee Alloys-nickel alloy Rich Grades For Sale
In addition to Monel 400, we can also provide the following grades of nickel-based alloys
FAQ
Below are some frequently asked questions about Monel Alloy 400. If you have any other questions, please feel free to contact us.
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