
Monel 400 is copper nickel alloy,has good corrosion resistance. In salty water or seawater has excellent resistance to pitting corrosion, stress corrosion ability. Especially hydrofluoric acid resistance and resistance to the hydrochloric acid. Widely used in the chemical, oil, Marine industry.
It is widely used on many aspects,like valve and pump parts, electronic components, chemical processing equipment, gasoline and freshwater tanks, petroleum processing equipment, propeller shafts, marine fixtures and fasteners,boiler feedwater heaters and other heat exchangers.
Item | Ni | Cu | Fe | Mn | C | Si | S |
Monel 400 | ≥63 | 28-34 | ≤2.5 | ≤2 | ≤0.3 | ≤0.5 | ≤0.025 |
Item | Ni | Cu | Al | Ti | Fe | Mn | S | C | Si |
Monel K500 | ≥63 | 27-33 | 2.3-3.15 | 0.35-0.85 | ≤2 | ≤1.5 | ≤0.01 | ≤0.25 | ≤0.5 |
Item | Density | Melting point | Tensile Strength | Yield Strength | Elongation | HB |
Monel 400 | 8.83 g/cm3 | 1300-1390℃ | 480 | 170 | 35% | ≥331 |
Item | Density | Melting point | Tensile Strength | Yield Strength | Elongation |
Monel K500 | 8.05 g/cm3 | 1288-1343℃ | 1100 | 790 | 20% |
Monel 400 | Bar/Rod | Forging | Pipe | Sheet/Strip | Welding Wire |
Standard | ASTM B164 | ASTM B564 | ASTM B165 | ASTM B127 | ErNiCu-7 |
Monel K500 | Bar/Rod | Forging | Pipe | Sheet/Strip | Welding Wire |
Standard | ASTM B864 | AMS4676 | ASTM B865 | ASTM B564 | ErNiCu-7 |



Monel bars are a type of nickel-copper alloy that is known for its high strength, excellent corrosion resistance, and good ductility. As a result, they are used in a wide range of applications, including:
1. Aerospace industry: Monel bars are commonly used in aircraft and rocket components, such as fuel tanks, exhaust systems, and hydraulic tubing.
2. Chemical industry: Monel bars are used in chemical processing equipment and storage tanks due to their excellent resistance to corrosion by acids, alkalis, and other chemicals.
3. Marine industry: Monel bars are used in marine applications, such as boat and shipbuilding, due to their excellent resistance to seawater corrosion.
4. Oil and gas industry: Monel bars are used in the oil and gas industry for applications such as downhole drilling tools, pumps, and valves.
5. Electronics industry: Monel bars are used in electrical and electronic applications, such as connectors and switches, due to their good electrical conductivity and resistance to corrosion.
Overall, Monel bars are used in many diverse applications due to their combination of strength, corrosion resistance, and ductility.







