Alloy 400 is a nickel-copper alloy known for its excellent corrosion resistance, high strength, and good performance in marine and chemical environments.
| TRADEMARK | UNS | WERKSTOFF NR. | ASTM (Plate) | ASTM (Pipe) | ASTM (Bar) | EN | AFNOR |
|---|---|---|---|---|---|---|---|
| Monel 400 | N04400 | 2.4360 | B127 Q Q-N-281 | B165 | B164 Q Q-N-281 | NiCu30Fe | NU 30 |
Nickel-Copper Alloy 400 also known as MONEL 400 is a solid-solution alloy that can be hardened only by cold working. It has high strength and toughness over a wide temperature range and excellent resistance to various corrosive environments.
Alloy 400 is widely used in multiple industries such as marine and chemical processing. Typical applications are valves and pumps; pump and propeller shafts, marine fixtures, fasteners, electrical and electronic components, springs, chemical processing equipment, gasoline and fresh water tanks, crude petroleum stills, process vessels and piping, boiler feedwater heaters and other heat exchangers and deaerating heaters.
Final chemical, mechanical properties, dimensions and tolerances are confirmed against the governing specification and purchase order.
| % | C | Mn | Si | S | Fe | Cu | Ni |
|---|---|---|---|---|---|---|---|
| min | - | - | - | - | - | 28 | 63 |
| max | 0.30 | 2.00 | 0.024 | 0.03 | 2.50 | 34 | 70 |
| - | Tensile Strength | Yield Strength (0.2%) | Hardness | Elongation |
|---|---|---|---|---|
| min | 70 ksi [483 MPa] | 28 ksi [193 MPa] | 65 HRB | 35% |
| max | 85 ksi [586 MPa] | 50 ksi [345 MPa] | 80 HRB | 50% |
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