AMS 4675 - Monel 400 Bars & Forgings
The AMS 4675 specification covers Monel 400 (UNS N04400), a nickel-copper alloy in the form of bars, forgings, and forging stock.
The specification covers the Monel 400 (UNS N04400) nickel-copper alloy in the form of bars, forgings, and forging stock.
Product Forms & Size Range of MONEL 400
Round Bar diameters range from 0.125″ to 14.00″ diameter.
Flat Bar comes in a variety of thicknesses and widths. For more information please request a quote.
Plate Thickness ranges from 0.1875″ to 6.50″ Thick.
Sheet Thicknesses range from 0.002″ to .150″ Thick.
Overview of Monel 400 per AMS 4675
Monel 400, as specified in AMS 4675, is a solid solution alloy of nickel and copper with good balance of properties including high strength and toughness along with excellent corrosion resistance in various environments. The mechanical properties of the alloy are close to structural steel with resistance to seawater, hydrofluoric acid, and alkalines.
Chemical composition:
Nickel – 67%, Copper – 30%, Iron – 2.5%, Manganese – 2%.
Key Characteristics:
- Excellent corrosion resistance in seawater, acids, and alkalis
- High mechanical strength and ductility across wide temperature ranges
- Outstanding resistance to stress corrosion cracking
- Retains toughness down to sub-zero temperatures
- Non-magnetic in typical applications
Applications of MONEL 400
It is resistant to seawater corrosion, making it a popular choice for use in marine environments. It is often used in the construction of boats, ships, and other marine vessels, as well as in offshore oil and gas production
It is resistant to a variety of corrosive environments, including acidic solutions. This makes it a popular choice for use in chemical processing plants, where it is often used for piping, valves, and other process equipment.
It has a high strength-to-weight ratio, making it ideal for use in structural applications. It is often used in the construction of bridges, buildings, and other structures where strength and corrosion resistance are important.
It is resistant to corrosion from H2S, making it a popular choice for use in the oil and gas industry. It is often used in the production of oil and gas, as well as in the transportation of these materials.
It is often used in the aerospace industry due to its strength and corrosion resistance. It is used in the manufacture of aircraft and aerospace components, such as engine parts and structural components.
Related Specifications
SHEET & PLATE
Sheets and plates for high-temperature aerospace and industrial applications.
BARS & FORGINGS
Bars and forgings designed for high-strength, creep, and fatigue-resistant components.
Certified Material for Critical Service
Monel 400 material from Fighter Jet Metals is:
- Certified to AMS 4544, AMS 4675, AMS 4730, ASTM B164, and QQ-N-281
- Supplied with complete Material Test Reports (MTRs) and heat traceability
- Processed under AS9100 & ISO 9001 quality systems
- Verified for aerospace, marine, and chemical processing service
This guarantees mechanical consistency, dimensional reliability, and corrosion performance across all supplied forms.