Corrosion resistant alloys
Hastelloy C-276

 

Hastelloy C-276 is a nickel-molybdenum-chromium alloy with an addition of tungsten having excellent corrosion resistance in a wide range of severe environments. The high molybdenum content makes the alloy especially resistant to pitting and crevice corrosion. The low carbon content minimizes carbide precipitation during welding to maintain corrosion resistance in as-welded structures. It is widely used in pollution control, chemical processing, pulp and paper production and waste treatment.

 

Equivalent alloy:

NS334 (China)HC-276UNS N10276 (US)、DIN W. Nr. 2.4819NiMo16Cr15W (Germany)

NC17DUK

 

Physical Properties:

Density

8.89 g/cm3

Melting range

1325-1370

 

Chemical composition:

%

Ni

Cr

Mo

Fe

W

Co

C

Mn

Si

P

S

V

min

balance

20.0

12.5

2.0

2.5

max

22.5

14.5

6.0

3.5

2.5

0.015

0.50

0.08

0.020

0.020

0.35

 

Designation

Standard

Rod

ASTM B 574

Plate, sheet and strip

ASTM B 575

Seamless pipe and tube

ASTM B 622

Welded pipe

ASTM B 619, B 775

Welded tube

ASTM B 626, B 751

Welding fitting

ASTM B 366

Forged or rolled pipe flange and forged fitting

ASTM B 462

Billet and bar for reforging

ASTM B 472

Forging

ASTM B 564

 

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