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.) |
