ASTMB165 Monel 400/Alloy400/UNSN04400/2.4360 Monel Alloy Seamless Steel Pipe
Chemical composition of Monel 400/UNSN04400/Monel 400/2.4360
| Material | Monel 400 / UNS N04400 / Monel 400 / 2.4360 |
|---|---|
| Chemical Composition (%) | |
| Copper (Cu) | 28.00–34.00 |
| Iron (Fe) | ≤2.50 |
| Manganese (Mn) | ≤2.00 |
| Carbon (C) | ≤0.30 |
| Silicon (Si) | ≤0.50 |
| Sulfur (S) | ≤0.024 |
| Nickel (Ni) | ≥63.00 |
| Grade | N04400 |
Mechanical properties of Monel 400/UNSN04400/Monel 400/2.4360
| Mechanical Properties (Tube & Pipe Seamless - Annealed) | |
| Tensile Strength (ksi) | 70–85 |
| Yield Strength (ksi) | 25–45 |
| Elongation (%) | 50–35 |
| Hardness (Rockwell B) | 75 max* |


Monel 400/UNSN04400/Monel 400/2.4360 Execution Standard
B163/165
Monel 400/UNSN04400/Monel 400/2.4360 Material Overview
Monel 400 is a nickel-copper alloy known for its excellent corrosion resistance, good mechanical properties and machinability. It has been widely used in many industrial fields, especially in marine engineering, chemical industry and food processing industries.
Main Features
Excellent corrosion resistance: Excellent corrosion resistance to seawater, salt solution, alkali solution, various organic acids and inorganic acids.
Good mechanical properties: It has high strength, toughness and hardness, as well as good plasticity and weldability.
High temperature resistance: It can still maintain good mechanical properties at high temperatures.
Good wear resistance: High surface hardness and wear resistance.
Chemical composition
The main components of Monel 400 alloy are nickel and copper, usually containing more than 63% nickel. The addition of copper increases the strength and hardness of the alloy while maintaining good corrosion resistance.
Application areas
Marine engineering: used to manufacture ship propellers, seawater pipelines, valves, etc.
Chemical industry: used to manufacture corrosion-resistant equipment such as reactors, heat exchangers, pipelines, etc.
Food processing industry: used to manufacture food processing equipment such as agitators, pumps, etc.
Electronics industry: used to manufacture electronic components.
Advantages of Monel 400 steel pipe
Seawater corrosion resistance: It has excellent corrosion resistance in seawater environment and is the preferred material for marine engineering.
Stress corrosion cracking resistance: It is not easy to cause corrosion cracking under stress.
Good processing performance: Easy to weld, cold work and hot work.
Good biocompatibility: It is also used in the biomedical field.
Material selection considerations for Monel 400 steel pipe
Working environment: Select the appropriate alloy grade according to the corrosiveness, temperature, pressure and other factors of the working environment.
Performance requirements: Select appropriate mechanical and physical properties according to the performance requirements of the components.
Cost: Monel 400 alloy is relatively expensive, and cost and performance need to be considered comprehensively.
Summary
Monel 400 steel pipe is a high-performance nickel-copper alloy pipe with excellent corrosion resistance, good mechanical properties and machinability. It is widely used in marine engineering, chemical industry, food processing and other fields. When choosing Monel 400 steel pipe, it is necessary to comprehensively consider factors such as working environment, performance requirements and cost.





