Nickel & Nickel Alloys
N04400 • 2.4360
- Application
Alloy 400 (UNS N04400) 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 many corrosive environments.
Alloy 400 is widely used in many fields, especially marine and chemical processing. Typical applications are valves and pumps; pump and propeller shafts; marine fixtures and 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.
- Typical manufacturing specifications
ASTM B163, ASTM B165
Also individual customer specifications.
- Industries predominantly using this grade
Heat Exchangers, Steam generators, Reboiler tubes Nuclear core cooling tubes, Control lines ect.
Technical Data
Chemical composition(% by Weight)
Element | Ni | Cu | Fe | Mn | C | Si | S |
|---|---|---|---|---|---|---|---|
Minimum | 63.0 | 28.0 | - | - | - | - | - |
Maximum | - | 34.0 | 2.5 | 2.0 | 0.3 | 0.5 | 0.024 |
Mechanical Properties
| Tubing, Annealed | Tubing, Stress - Relieved | |||
|---|---|---|---|---|
|
Tensile Rm |
70 |
ksi (min.) |
85 |
ksi (min.) |
|
Tensile Rm |
480 |
MPa (min.) |
585 |
MPa(min.) |
|
Yield (R.p. 0.2%) |
28 |
ksi (min.) |
55 |
ksi (min.) |
|
Yield (R.p. 0.2%) |
195 |
MPa (min.) |
380 |
MPa (min.) |
|
Elongation |
35 |
% (min.) |
15 |
% (min.) |