Alloy 400 / UNS N04400 / 2.4360
Alloy 400 / UNS N04400 / 2.4360: Proven Performance in Marine, Chemical, and Industrial Applications
Properties of Alloy 400 / UNS N04400 / 2.4360
Alloy 400 / UNS N04400 / 2.4360 is a solid-solution nickel-copper alloy known for its excellent corrosion resistance and good mechanical properties across a wide temperature range.
Key Features:
- Outstanding resistance to seawater, salt solutions, hydrofluoric acid, and non-oxidizing acids
- No susceptibility to chloride-induced stress corrosion cracking
- Good mechanical strength from cryogenic temperatures up to approx. 550 °C
- Excellent thermal conductivity and low electrical resistivity
- Non-magnetic in annealed condition
Applications of Alloy 400 / UNS N04400 / 2.4360
Alloy 400 / UNS N04400 / 2.4360 is widely used in industries requiring corrosion resistance and durability:
- Marine engineering: pump shafts, propellers, fasteners
- Chemical processing: heat exchangers, tanks, piping systems
- Oil & gas: crude petroleum stills, process vessels
- Power generation: boiler feedwater heaters, deaerating heaters
- Salt production and desalination
- Electronic components: springs, connectors, non-magnetic housings
Specification Overview
| Material number | 2.4360 |
| Alloy | 400 |
| EN designation | NiCu30Fe |
| UNS | N04400 |
| Semi-finished products (strip, sheet, pipe, rod) | DIN 17743 / DIN 17752 |
| Forged or rolled components | ASTM B 164 / ASME SB 164 / ASTM B 564 / DIN 17752/ DIN 17754 / VdTÜV 263 / AMS 4675 |
| Sheets / strips | ASTM B 127 / ASME SB 127 / DIN 17750 / VdTÜV 263 / AMS 4544 |
| Wire | DIN 17743 / ASTM B 164 |
Physical Properties:
| Material Density | 8.83 g/cm³ |
| Electrical Resistivity | 1300 – 1350°C |
| Thermal conductivity (20 °C) | 23.0 W/(m·K) |
| Electrical Resistivity | 0.51 Ω·mm²/m |
| Thermal Expansion (20–100 °C) | 13.8 × 10⁻⁶/K |
| Magnetic Permeability | µr< 1.01 |
Mechanical Properties (Annealed):
| Tensile Strength Rm | ≥ 400 MPa |
| Yield Strength Rp0.2 | ≥ 175 MPa |
| Elongation A5 | ≥ 30% |
Chemical Composition (% by Weight)
Element Content acc. to VdTÜV Werkstoffblatt 263
| Ni | Cu | C | Si | Mn | S | Fe | Al |
| ≥ 63.00 | 28.0 – 34.0 | ≤0.18 | ≤ 0.50 | ≤ 2.00 | ≤ 0.020 | 1.00 – 2.50 | ≤ 0.50 |
Product Portfolio
Our company offers Alloy 400 / UNS N04400 / 2.4360 in a wide range of forms and processing stages:
- Sheets and Plates – hot/cold rolled, solution annealed
- Bars and Rods – forged or rolled, pickled
- Tubes and Pipes – seamless or welded
- Wire – drawn or rolled
- Fittings and Flanges
- Forged and Machined Components – per drawing or specification
All information without guarantee and for informational purposes only.