Monel R-405
Super Alloy UNS N04405
Material Data Sheet
MONEL nickel-copper alloy R-405 (UNS N04405) is the free-machining grade of alloy 400. Its greater sulfur content enhances machinability. It has essentially the same corrosion resistance and physical properties as alloy 400, but a slightly different range of mechanical properties. Alloy R-405 is used chiefly for automatic screw-machine stock and is not generally recommended for other applications.
Chemical Composition
| Element | Content % |
|---|---|
| Nickel, Ni | 63.0 |
| Copper, Cu | 31.0 |
| Iron, Fe | 2.50 |
| Manganese, Mn | 2.0 |
| Carbon, C | 0.30 |
| Silicon, Si | 0.50 |
| Sulfur, S | 0.0425 |
Physical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.80 g/cm³ | 0.318 lb/in³ |
| Melting Point | 1338°C | 2440°F |
Mechanical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Tensile Strength | 550 MPa | 79800 psi |
| Yield Strength | 240 MPa | 34800 psi |
| Elongation at Break | 40% | 40% |
Applications
- Automatic screw machine application
- Marine engineering
- Chemical and hydrocarbon processing equipment
- Gasoline and freshwater tanks
- Crude petroleum stills
- De-aerating heaters
- Boiler feed water heaters and other heat exchangers
- Valves, pumps, shafts, fittings, and fasteners
- Industrial heat exchangers
- Chlorinated solvents
- Crude oil distillation towers
Specifications
- AMS 4674
- ASTM B164 CLASS B
- ASTM F467
- ASTM F468
- QQ N281
