Alloy 201(UNS N02201/N4) is a commercial pure nickel forging alloy strengthened by solid solution, which has high toughness. The maximum carbon content of alloy 201 is low, which makes the material resistant to graphitization and therefore not easy to embrittlement. It has excellent corrosion resistance in reducing, neutral medium and oxidizing environment, and is often used in the environment containing alkali;
In sulfuric acid, hydrochloric acid, anhydrous hydrofluoric acid and non aerated organic acid. Alloy 201 can resist stress corrosion cracking in chloride and corrosion of non oxidizing halide.
Chemical composition:
|
% |
Ni |
Fe |
C |
Mn |
Si |
S |
Cu |
% |
Ni |
Fe |
C |
Mn |
|
min |
99.0 |
min |
99.0 |
|||||||||
|
max |
0.40 |
0.020 |
0.35 |
0.35 |
0.010 |
0.25 |
max |
0.40 |
0.020 |
0.35 |
Physical properties :
|
Density |
8.89 g/cm3 |
|
Melting range |
1435-1446℃ |
Application:
Chemical processing and storage
food processing
Alkali industry
water treatment
Synthetic fiber production
Electronic instrument
From
|
UNS |
Alloy |
Scope (mm) |
|||
|
Seamless pipe &tube |
Welded pipe & tube |
Fitting/ Flange |
Sheet, Plate, Strip |
||
|
UNSN02201 |
ALLOY 201/N4 |
OD: 6-355mm 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 ; Coil: WT: 0.15-3mm WDT: <1000mm |
