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Monel 400 Plate is a strong and corrosion-resistant nickel-copper alloy used in tough industrial environments. It contains around 63% nickel and 28–34% copper, along with small amounts of iron, manganese, carbon, silicon, and sulfur. This alloy is especially useful in marine, chemical, and heat-intensive applications because it stands up well to saltwater, steam, acids, and caustic solutions.
At Preston Pipes and Alloys, we offer Monel 400 plates that conform to ASTM B127 standards. These plates are available in a range of sizes—lengths from 200mm to 6000mm, widths between 1000mm to 2000mm, and thicknesses from 0.3mm to 20mm. They are supplied in hot-rolled or cold-rolled finishes, depending on customer requirements.
Monel 400 performs well across a wide temperature range—from cryogenic levels up to about 1000°F (538°C). It also has a high melting point of around 1350°C. With a density of 8.8 g/cm³, the material offers a minimum yield strength of 240 MPa and a minimum tensile strength of 550 MPa. These features make it suitable for high-pressure and high-temperature applications.
The plates also meet NACE MR0175 standards, making them reliable for sour service and offshore use. They can be cut, welded, formed, ground, or polished based on project needs. Alongside plates, we supply Monel 400 sheets, coils, strips, foils, and shim sheets for more specific industrial uses.
Whether you're dealing with rapidly flowing seawater, hydrofluoric acid, or brackish water, Monel 400 Plate offers dependable performance and long service life. Contact us for competitive pricing, availability, and expert guidance on choosing the right Monel 400 products.
| Specifications | ASTM / ASME SB 127 |
| Size | 1000 mm x 2000 mm, 1220 mm x 2440 mm, 1500 mm x 3000 mm, 2000 mm x 2000 mm, 2000 mm x 4000 mm |
| Thickness | 0.1mm to 12 mm Thk |
| Form | Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Strip, Flats, Blank (Circle), Ring (Flange) |
| Finish | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
| Hardness | Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc. |
| 3/16" | 1/4" | 3/8" | 1/2" | 5/8" | 3/4" | 1" |
| 4.8mm | 6.3mm | 9.5mm | 12.7mm | 15.9mm | 19mm | 25.4mm |
| 1 1/4" | 1 1/2" | 1 3/4" | 2" | 2 1/2" | 3" | |
| 31.8mm | 38.1mm | 44.5mm | 50.8mm | 63.5mm | 76.2mm |
Monel Alloy 400 Sheet
Monel 400 Perforated Sheet
2.4360 Cold Rolled Sheet
UNS N04400 Hot Rolled Plate
ASTM B127 Monel 400 Strip
Monel 400 Coil
Monel 400 Foil
400 Monel Shim Sheet
Alloy 400 Shim Stock
Get in touch with us for the best deal on Monel 400 Plate
| Nickel (plus Cobalt) | 63.0 min.-70.0 max. | Iron | 2.50 |
| Copper | 28.0 min.-34.0 max. | Sulfur | 0.024 |
| Carbon | 0.3 | Silicon | 0.5 |
| Manganese | 2.0 |
| FORM AND CONDITION | Yield Strength 0.2% Offset |
Tensile Strength | Elongation, % | Hardness | |||
| ksi | MPa | ksi | MPa | Brinell (3000-kg) | Rockwell B | ||
| Plate | |||||||
| Hot-Rolled, As-Rolled | 40–75 | 276–517 | 75–95 | 517–655 | 45–20 | 125–215 | 75–96 |
| Hot-Rolled, Annealed | 25–50 | 170–345 | 70–85 | 482–586 | 50–35 | 110–140 | 62–76 |
| Density |
0.318 lbs/in³ 8.80 g/cm³ |
| Specific Heat |
0.102 BTU/lb-°F (68°F) 427 J/kg-°K (20°C) |
| Modulus of Elasticity |
26.4 × 106 ksi (68°F) 182 GPa (20°C) |
| Thermal Conductivity 200°F (100°C) |
150 BTU/hr/ft2/ft/°F (68°F) 22.0 W/m-°K (20°C) |
| Melting Range |
2370 – 2460°F 1300 – 1350°C |
| Electrical Resistivity |
307 Microhm-in at 70°C 0.511 Microhm-cm at 21°C |
Mean Linear Expansion
| Temperature Range | Coefficient of Expansion | ||
| °F | °C | in/in/°F × 10-6 | μm/m·°C |
| -320 | -200 | — | — |
| -300 | -180 | 6.1 | 11.1 |
| -200 | -130 | 6.4 | 11.4 |
| -100 | -70 | 6.7 | 12.1 |
| 70 | 21 | — | — |
| 200 | 100 | 7.7 | 14.2 |
| 400 | 200 | 8.6 | 15.2 |
| 600 | 300 | 8.8 | 15.7 |
| 800 | 400 | 8.9 | 16.1 |
| 1000 | 500 | 9.1 | 16.3 |
| 1200 | 600 | 9.3 | 16.6 |
| 1400 | 700 | 9.6 | 17.0 |
| 1600 | 800 | 9.8 | 17.4 |
| 1800 | 900 | 10.0b | 17.7 |
| 2000 | 1000 | 10.3b | 18.1b |
| 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 |