Monel 404
Monel 404 Properties and Appearance
Monel 404 is a nickel-copper alloy known for high strength and excellent corrosion resistance to sea water, common acids and alkalis. This alloy has low permeability and good brazing characteristics. Monel 404 is also known as UNS N04404 and ASTM F96.
The high copper composition makes it suitable for electronic applications. It has a low Curie temperature, low permeability, and good brazing characteristics.
The following datasheet gives an overview of Monel 404.
Chemical Composition
| Element | Content(%) |
| Nickel (Ni) | 50 – 57% |
| Copper (Cu) | ≤45.5% |
| Iron (Fe) | ≤0.05% |
| Carbon (C) | ≤0.015% |
| Manganese (Mn) | ≤0.01% |
| Silicon (Si) | ≤0.01% |
| Aluminum (Al) | ≤0.005% |
| Sulfur (S) | ≤0.024% |
Physical Properties
| Properties | Metric | Imperial |
| Density | 8.91 g/cm³ | 0.322 lb./in³ |
Mechanical Properties
| Properties | Metric | Imperial |
| Tensile Strength (annealed) | 483 MPa | 70 ksi |
| Yield Strength (annealed) | 172 MPa | 25 ksi |
| Elastic Modulus | 169 GPa | 24500 ksi |
| Poisson’s Ratio | 0.295 | 0.295 |
| Elongation at Break | ||
| Hardness, Rockwell B | ||
| Hardness, Brinell |
Thermal Properties
| Properties | Metric | Imperial |
| Thermal Expansion co-efficient (@ 100 – 538°C/212 – 1000.0°F) | µm/m°-C | µin/in°F |
| Thermal Conductivity (@ 21°C/70.0°F) | W/mK | BTU in/hr.ft².°F |
Monel Applications
Monel 404 is used in the following applications:
- Chemical processing
- Hydrocarbon processing
- Fasteners
- Heat exchangers
- Electronic devices
- Electrical devices
- Marine fixtures
- Valves and pumps
- Shafts and fittings
Fabrication and Heat Treatment
- Machinability – Appropriate for conventional machining techniques used on other iron alloys.
- Welding – Alloy 404 is appropriate for common welding techniques.
- Hot Working – 404 cannot be hot worked.
- Cold Working is done with standard tooling and soft die materials.
- Annealing – Anneal at 760°C (1400°F) for one hour.
Monel 404 Formats Supplied
Vulcan Metal Group supplies Monel 404 in sheet, strip, plate, pipe, tube and wire. Custom machined and finished parts supplied to print.Please contact us for more information on how Vulcan Metal Group can help you.
Address
Vulcan Metal Group LLC
23888 Madison Street
Torrance, CA 90505
United States
Phone / Fax
Phone: +1 310.882.6841
Fax: +1 310.893.0579
Cage Code
8FCY8
Quality Policy: Vulcan Metal Group, LLC. supplies mission critical, special purpose materials, and products at a competitive price. The company’s quality system is registered to ISO 9001 and AS9100 and follows its principles for the governance of the business. An active continual improvement program and compliance with all applicable OSHA, federal, and state regulations is maintained.