Alloy 400 (UNS N04400) has excellent corrosion resistance, especially in neutral and alkaline salts. It is made of high-strength nickel copper alloy. Due to the high nickel content, this alloy is not affected by stress corrosion cracking caused by chloride and does not produce cracks. The alloy also has good mechanical properties in the temperature range from minus to 549 ° C.
Chemical composition:
|
% |
Ni |
Cu |
Fe |
C |
Mn |
Si |
S |
% |
Ni |
Cu |
Fe |
C |
|
min |
63.0 |
28.0 |
min |
63.0 |
28.0 |
|||||||
|
max |
34.0 |
2.5 |
0.30 |
2.00 |
0.50 |
0.024 |
max |
34.0 |
2.5 |
0.30 |
Physical properties :
|
Density |
8.80 g/cm3 |
|
Melting range |
1300-1350℃ |
Application:
Oceanographic engineering
Steam pipe
Chemical and hydrocarbon treatment
Oil refining and production equipment
Pressure vessels and reactors
Pipework and pipe sections
Brine heater
heat exchanger
Pump and valve components
Salt making equipment
From
|
UNS |
Alloy |
Scope (mm) |
|||
|
Seamless pipe &tube |
Welded pipe & tube |
Fitting/ Flange |
Sheet, Plate, Strip |
||
|
UNS N04400 |
Alloy 400 |
OD: 4.5-508mm WT: 0.75-20mm L<12000mm |
OD:17.1-914.4mm WT:1-36mm L:<12000mm |
DN15-DN600 | Plate: WT<6mm, WDT<1200mm, L<3000mm;
WT>6mm, WDT<2800mm, L<8000mm |
