Alloy 400 is a nickel-copper solid solution strengthened alloy. The alloy is characterized by moderate strength, good weldability, good general corrosion resistance and toughness. It is useful at temperatures up to 1000°F (538°C). Alloy 400 has excellent resistance to rapidly flowing brackish or seawater where cavitation and erosion resistance is necessary. It is particularly resistant to hydrochloric and hydrofluoric acids when they are de-aerated. Alloy 400 is slightly magnetic at room temperature.
Applications
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 feed water heaters and other heat exchangers; and deaerating heaters.
Range of products
| Product type | Product |
|---|---|
| Plates / Sheets | plates/sheets plate/sheet cuts |
| Rotating components | fittings from barsteel |
| Fittings | welded elbows welded reductions Welded T-pieces seamless elbows seamless reductions seamless T-pieces |
| Flanges / Collars / Flared tube ends | flared tube end collars various flanges (weld neck flange,blind flange etc.) weld neck flange/blind flange |
| Pipes / Tubes | welded pipes/tubes welded square pipes/tubes seamless pipes/tubes |
| Bar steel | flat steel section steel round bar steel hexagon steel |
Chemical Composition
| C | Mn | S | Si | Al | Fe | Ni | Cu | Ti | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 2.4360 | Min % | 1,00 | 63,00 | 28,00 | ||||||
| Max % | 0,15 | 2,00 | 0,020 | 0,50 | 0,50 | 2,50 | 34,00 | 0,30 | ||
| (Key to Steel 2010) | ||||||||||
| alloy 400 N 04400 | Min % | 63,00 | 28,00 | |||||||
| Max % | 0,30 | 2,00 | 0,024 | 0,50 | 2,50 | 34,00 | ||||
| ASTM B 725 | ||||||||||
Mechanical Properties Minimum Room Temperature Tensile Data
| Form | Condition | Ultimate
Tensile Strength ksi(MPa) | Yield
Strength at 0.2% offset, ksi(MPa) | Elongation
in 2″ or 4D, percent |
| Sheet, Plate, Strip | Annealed | 70.0 (480) | 28.0 (195) | 35 |
| Bar | Annealed | 70.0 (480) | 25.0 (170) | 35 |
Partial part type display:
