
About Monel 400 Alloy Plate
Monel 400 Alloy Plate is a composite metal made of nickel and copper with other elements added to enhance its properties. It is corrosion resistant, strong, ductile, and has excellent fatigue resistance. Monel 400 Alloy Plate is often used in marine applications due to its high durability and strength.
Will Monel 400 rust?
The corrosion resistance of Monel 400 alloy is particularly important in marine environments. It is widely used in marine components, including propeller shafts and fasteners, which are often exposed to seawater.

Monel Alloy 400 Plate Density
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Monel Alloy 400 Plate |
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8.8 g/cc |
Monel Alloy 400 Plate Thermal Properties
| Temperature | Mean Linear Expansion | Thermal Conductivity | Specific Heat | Electrical Resistivity | |||||
| °F | °C | in/in/°F x 10-6 | µm/m•°C | Btu-in/h/ft | W/m•°C | Btu/lb/°F | J/kg•°C | ohm-circ mil/ft | µΩ•m |
| -320 | -200 | - | - | - | - | - | - | 205 | 360 |
| -300 | -180 | 6.1 | 11.1 | 113 | 16.5 | 0.05 | 223 | - | - |
| -200 | -130 | 6.4 | 11.4 | 130 | 18.2 | 0.078 | 320 | - | - |
| -100 | -70 | -6.7 | 12.1 | 139 | 19.8 | 0.088 | 378 | - | - |
| 70 | 21 | - | - | 151 | 22 | 0.102 | 427 | 307 | 0.511 |
| 200 | 100 | 7.7 | 14.2 | 167 | 24 | 0.105 | 445 | 332 | 0.537 |
| 400 | 200 | 8.6 | 15.2 | 193 | 26.9 | 0.11 | 459 | 337 | 0.559 |
| 600 | 300 | 8.8 | 15.7 | 215 | 30.1 | 0.114 | 470 | 346 | 0.574 |
| 800 | 400 | 8.9 | 16.1 | 238 | 33.4 | - | - | 355 | 0.587 |
| 1000 | 500 | 9.1 | 16.3 | 238 | 36.5 | - | - | 367 | 0.603 |
| 1200 | 600 | 9.3 | 16.6 | 287 | 39.4 | - | - | 379 | 0.62 |
| 1400 | 700 | 9.6 | 17 | 311 | 42.4 | - | - | 391 | 0.639 |
| 1600 | 800 | 9.8 | 17.4 | 335d | 45.5d | - | - | 403 | 0.658 |
| 1800 | 900 | 10.0d | 17.7 | 360d | 48.8d | - | - | 415 | 0.675 |
| 2000 | 1000 | 10.3d | 18.1d | - | - | - | - | 427 | 0.692 |
Monel Alloy 400 Plate Mechanical Properties Analysis
| 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 % |
Chemical Compatibility Chart of UNS N04400 Sheet
| Grade | C | Mn | Si | S | Cu | Fe | Ni |
| Monel 400 | 0.30 max | 2.00 max | 0.50 max | 0.024 max | 28.00 – 34.00 | 2.50 max | 63.00 min |

Gnee Steel is a supplier of Monel 400 Alloy Plate, covering tubes: Seamless tubes: Size: 4 - 219 mm; Thickness: 0.5 - 20 mm; Welded tubes: Size: 5.0 - 1219.2 mm; Thickness: 0.5 - 20 mm, Plates: Plate thickness 0.1 to 100 mm; Plate width 10-2500 mm, Strips, Alloy round bar sizes: diameter 3-800 mm;, Flat bar sizes: thickness 2-100 mm; Width: 10-500 mm, Hexagonal bar sizes: 2-100 mm;, Wire and extruded profiles. We work with steel mills to provide customers with 625 alloy that meets or exceeds many leading industry standards, including ASTM, ASME, SAE, AMS, ISO, DIN, EN and BS standards.
Gnee Steel stocks and sells Monel 400 Alloy Plate, Tube, Pipe, Plate, Strip, Sheet, Round Bar, Flat Bar, Forged Billet, Hexagon, Wire and Extruded Profiles. Feel free to contact us for a quote at ss@gneesteel.com





