Monel 400 is a nickel-copper alloy with outstanding resistance to seawater, acids, and alkalis, widely used in marine engineering, chemical processing, and valve components.
Element | Content (%) |
Nickel (Ni) | 63.0 – 70.0 |
Copper (Cu) | 28.0 – 34.0 |
Iron (Fe) | ≤ 2.50 |
Manganese (Mn) | ≤ 2.00 |
Silicon (Si) | ≤ 0.50 |
Sulfur (S) | ≤ 0.024 |
Property | Value (Typical) | Unit | Condition |
Tensile Strength (Ultimate) | ≥ 485 | MPa | Annealed |
Yield Strength (0.2% Offset) | ≥ 170 | MPa | Annealed |
Elongation (in 50 mm) | ≥ 35 | % | ASTM B160 |
Hardness (Brinell) | ≤ 160 | HB | |
Density | 8.80 | g/cm³ | Room Temp |
Melting Range | 1300 – 1350 | °C | |
Modulus of Elasticity | ~180 | GPa | Room Temp |
Category | Standard Code | Description |
Pipe | ASTM B161 / ASME SB161 | Seamless Monel 400 pipe |
Tube | ASTM B163 / ASME SB163 | Seamless Monel 400 condenser tubes |
Fittings | ASTM B366 / ASME SB366 | Monel 400 wrought fittings |
