ASTM B619 hastelloy c22 welded pipe

Hastelloy C22, a nickel-based alloy with exceptional resistance to corrosion, is widely used in industries dealing with aggressive chemical environments. The ASTM B619 standard specifies the requirements for welded pipes made from this alloy. Below is a detailed overview of ASTM B619 hastelloy c22 welded pipe.

Material Overview: Hastelloy C22

Key Composition:

Nickel (Ni): Primary component

Chromium (Cr): 20–22% for corrosion resistance

Molybdenum (Mo): 12.5–14.5% for pitting and crevice corrosion resistance

Iron (Fe): 2–6%

Tungsten (W): 2.5–3.5% for added strength and corrosion resistance

Properties:

Superior resistance to oxidizing and reducing agents.

Outstanding performance against pitting, crevice corrosion, and stress corrosion cracking.

Applicable in highly aggressive chemical processes, such as those involving ferric acids, chlorides, and oxidizing media.

Key Features of ASTM B619 Hastelloy C22 Welded Pipes

Fabrication:

Produced using welding techniques such as gas tungsten arc welding (GTAW) or plasma arc welding (PAW).

Pipes undergo full penetration welding to ensure leak-proof construction.

Corrosion Resistance:

Excellent in extreme environments, including acidic and oxidizing conditions.

High tolerance to environments with chlorides and halides.

Strength:

Maintains high tensile strength and creep resistance at elevated temperatures.

Versatility:

Used in applications requiring both structural integrity and corrosion resistance.

ASTM B622 C22 Hastelloy Welded Pipes Equivalent Grades

Hastelloy UNS N06022 Welded Pipes Chemical Composition

Hastelloy Alloy C22 Welded Pipe Mechanical Properties

ASTM B619 Hastelloy C22 Welded Pipe Application Industry

Gas Processing Industries

Petrochemical Industries

Power Generation Industries

Food Processing Industries

Chemical Industries

Oil & Gas Industries

Fertilizers Industries

Sugar Industries