Alloy 201

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.

all

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