Special AlloysSheet/Plate
Description (English)
Monel 400 combines high strength with excellent corrosion resistance in chloride-containing environments, making it a standard material for marine hardware, pump and valve components, heat exchangers, and process piping. The alloy is slightly magnetic at room temperature (Curie temperature around 21β49 Β°C) and cannot be hardened by heat treatment; strength can only be increased by cold working. Monel 400 has been an industry standard since 1905 and is approved under ASME Boiler and Pressure Vessel Code for service in many corrosive applications. It is also used in safety applications requiring non-sparking tools and components in flammable atmospheres.
Size Range
- Plate: thickness 0.5β100 mm Γ width β€ 2400 mm Γ length β€ 6000 mm
- Sheet: thickness 0.3β6.0 mm Γ width β€ 1500 mm
- Strip: thickness 0.05β3.0 mm Γ width β€ 600 mm (coil)
Grade Specification
| System | Value |
|---|---|
| πΊπΈ UNS | N04400 |
| Werkstoff | 2.4360 / 2.4361 |
| πΊπΈ AMS | AMS 4574 |
| πΊπΈ ASTM | Alloy 400 / Monel 400 |
| πͺπΊ EN | NiCu30 |
| π©πͺ DIN | NiCu30Fe |
| AFNOR | NU30 |
| ΠΠΠ‘Π’ | ΠΠΠΠΡ28-2.5-1.5 |
| π―π΅ JIS | NCu30 / NW4400 |
| π¨π³ GB | NS 6400 |
Chemical Composition
| Element | Value |
|---|---|
| C | β€0.3 |
| Mn | β€2 |
| Fe | β€2.5 |
| S | β€0.024 |
| Si | β€0.5 |
| Cu | 28-34 |
| Ni | β₯ |
| Co | β€1 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile strength (Rm) | 517β620 MPa |
| Yield strength (Rp0.2) | 170β345 MPa |
| Elongation at break (A50mm) | 35β60 % |
| Reduction of area | 60β75 % |
Physical Properties
| Property | Unit | Value |
|---|---|---|
| Density | - | 8.80 g/cmΒ³ |
| Melting range | - | 1300β1350 Β°C |
| Modulus of elasticity (20 Β°C) | - | 179 GPa |
| Modulus of rigidity | - | 65 GPa |
Applications
- Marine engineering β propeller shafts, seawater pump shafts, impellers
- Seawater service β heat exchangers, condensers, piping, valves
- Chemical processing β hydrofluoric acid, sulfuric acid, alkalis
- Oil & gas β downhole tubing, christmas trees, hangers
- Hydrofluoric acid production and handling
- Chlorinated solvents production
- Salt manufacturing equipment
- Pulp and paper β bleach plant equipment
- Power generation β feedwater heaters, nuclear steam generators
- Refinery β crude distillation overhead systems
- Aerospace β fuel tanks, fuel lines, structural components
- Pharmaceutical equipment
- Non-sparking tools and components
- Cryogenic equipment
- Heat exchangers, condensers, evaporators
- Pump and valve components
- Fasteners, springs, instrument fittings