AMS 4730 - Monel 400 Wire
The specification AMS 4730 indicates that Monel 400, or Nickel Copper Alloy UNS N04400, can be obtained in wire, rod, or welding filler metal form. It ensures high performance in the aerospace, marine, and chemical industries, where resistance to corrosion, ductility, and weldability are critical.
Overview of Monel 400 per AMS 4730
Monel 400, as defined by AMS 4730, is a nickel-copper alloy with a solid solution that has earned a reputation for its robust mechanical properties, as well as its exceptional resistance to both corrosive and alkaline environments. The alloy finds primary application as welding filler wire or fabrication wire, providing robust welds and matching metallurgical characteristics when used to bond base materials such as AMS 4544 and AMS 4675.
Chemical Composition (Nominal):
Ni ≈ 67 % Cu ≈ 30 % Fe ≤ 2.5 % Mn ≤ 2 % C ≤ 0.3 %
ey Attributes:
- High strength and excellent ductility
- Outstanding resistance to seawater, acids, and alkalis
- Excellent weldability and corrosion matching with Monel base metals
- Maintains mechanical integrity from cryogenic to elevated temperatures
- Non-magnetic and resistant to stress-corrosion cracking
What is AMS 4730 used for?
It specifies Monel 400 wire and rod for welding and fabrication in aerospace, marine, and chemical 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.
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.