Hastelloy C276 Flanges and Fittings

Hastelloy C 276 pipes fittings and flanges have good resistance against wet chlorine gas, Chlorine dioxide, and hypochlorite solution, they are helpful in toxic waste effluents from the chemical industry.

Chemical composition

GRADE

 

Cr

Ni

Mo

Fe

W

Co

V

Si

P

C

S

Hastelloy C-276

Min

14.5

15

4

3

Max

16.5

57

17

7

4.5

2.5

0.35

0.08

0.025

0.01

0.01

Hastelloy C276 or Alloy C276 with nickel molybdenum and addition of tungsten makes alloy an excellent corrosion resistance in a wide range of severe environments. They are widely used in oxidizing and reducing environments.

Mechanical Properties

Grade

Tensile Strength

Yield Strength

Elongation

[MPA]

[MPA]

(% in 50mm) min

Hastelloy C-276

690

283

40

HASTELLOY or UNS N10276 are known for their good weldability, which is defined as the ability of a material to be welded and to perform satisfactorily in the imposed service environment.

Physical properties

Grade

Density (g/cm3)

Melting Point °C

Co-eff of Thermal Expansion (μm/m/°C)

Thermal Conductivity (W/m.K)

Specific Heat ( J/Kg.K)

24-93°C

0-100°C

Hastelloy C-276

8.89

1371

11.2

7.2

727

Specification of Flange 

The specified ASTM Standard Specification for Nickel hastelloy C276 flanges is ASTM B 564 with manufacturing standard such as ANSI/ASME B16.5, B16.47, BS4504, B 16.47 Series A & B, BS 10, EN-1092, DIN, etc.

According to  application and uses in pipes and tubes Alloy C276 flanges are broadly grouped into different sort, for example, Welding Neck Flange(WNF) & Long Welding Neck Flange(LWNF), Slip-on Flange(SOF), Lap Joint Flange(LJW), Blind Flange, Socket Welding Flange (SWF), Threaded Flange(THW), Plate Flange.

Hastelloy C276 Flanges for the most part has different  face type, for example, Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ), blind flange, with various class rating as 50 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16,din 2.4856 , 25, 40 & ANSI B16.5.

Specification of Fittings

The specified ASTM Standard Specification for Nickel Alloy C276 pipe fittings is ASTM B 366, having Specific manufacturing Standards as ASME/ANSI B16.9, ASME B16.28, MSS-SP-43. 

Hastelloy C276 Fittings or n10276hastelloy are categorically available are Elbow, Reducer, Tee, Coupling, Bend, Stub End, Cap, Nipple, Washer, Cross, Union etc. which are available in different  types such as Welded, Seamless and Fabricated having thickness range from 5s, 10s, 40s, 80s, 10, 20, 40, STD, 60, 80, XS, 100, 120, 140, 160, XXS available with NACE MR 01-75.

Applications

Alloy C276 flanges has many industrial applications some of which include chemical processing, Pollution control, Waste treatment, Pulp and paper production, Pharmaceutical industry etc.

Hastelloy C276 Pipe Seamless Fittings which are age-hardenable through cold working, exhibit good machinability and weldability and are formed and forged using regular methods. They are usually recommended in the chemical processing and marine engineering industry. 

1: Off-Shore Oil Drilling Companies

2: Power Generation

3: Petrochemicals

4: Gas Processing

5: Specialty Chemicals

NOTE: Hastelloy C 276 Flanges and Fittings is a registered trademark of Haynes International Inc.

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