What is 400 nickel material?
Introduction
Nickel alloy 400 is a ductile nickel-copper alloy that exhibits excellent corrosion resistance under various conditions. The alloy is frequently used in mildly oxidizing environments to moderately reducing conditions. It has high strength and toughness, and is resistant to chloride stress corrosion cracking.


The following section will discuss in detail about nickel alloy 400.
Chemical Composition
The chemical composition nickel alloy 400 is outlined in the following table.
| Element | Content (%) |
|---|---|
| Nickel, Ni | 63-70 |
| Copper, Cu | 28-34 |
| Iron, Fe | 2.5 |
| Manganese, Mn | 2 |
| Silicon, Si | 0.5 |
| Carbon, C | 0.3 |
| Sulfur, S | 0.024 |
Physical Properties
The following table shows the physical properties of nickel alloy 400.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.80 g/cm3 | 0.318 lb/in3 |
| Melting point | 1300-1350°C | 2370-2460°F |
Mechanical Properties
The mechanical properties of nickel alloy 400 (hot-rolled) are displayed in the following table.
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength (annealed) | 517-655 MPa | 75-95 ksi |
| Yield strength (annealed) | 276-517 MPa | 40-75 ksi |
| Elongation at break (annealed) | 30-45% | 30-45% |
| Brinell hardness | 125-215 | 125-215 |
| Rockwell B hardness | 70-96 | 70-96 |





