Hastelloy C22 Pipes & Tubes

In the world of industrial materials, choosing the right alloy for piping and tubing systems is crucial to ensuring optimal performance, especially in challenging environments. One such alloy that stands out for its superior resistance to corrosion and exceptional durability is Hastelloy C22. Hastelloy C22 pipes and tubes are widely recognized for their robustness and reliability, making them a preferred choice in various industries. In , we will explore what Hastelloy C22 pipes and tubes are, their advantages, and their applications across different industries.

Hastelloy C22 Pipes & Tubes
Hastelloy C22 Pipes & Tubes

What is Hastelloy C22 Pipes & Tubes?

Hastelloy C22 is a nickel-chromium-molybdenum alloy known for its outstanding corrosion resistance, even in harsh chemical environments. It is specifically engineered to withstand the aggressive corrosive effects of acids, alkalis, and other harsh chemicals that are common in industrial processes. The addition of tungsten in Hastelloy C22 enhances its overall resistance, making it less prone to localized corrosion, such as pitting and crevice corrosion, and stress corrosion cracking.

Hastelloy C22 pipes and tubes are fabricated using this versatile alloy, resulting in products that are not only strong but also highly resistant to a wide range of corrosive conditions. These pipes and tubes are available in various sizes, thicknesses, and specifications to suit diverse industrial requirements. Their excellent mechanical properties and resistance to oxidation make them suitable for use in extreme temperatures, adding to their versatility.

Advantages of Hastelloy C22 Pipes & Tubes

Hastelloy C22 pipes and tubes offer several advantages that make them stand out in comparison to other alloys:

Exceptional Corrosion Resistance One of the most significant advantages of Hastelloy C22 is its exceptional resistance to corrosion in a wide variety of chemical environments. This includes resistance to both oxidizing and reducing agents, making it highly effective in protecting against uniform corrosion, pitting, and crevice corrosion.

High-Temperature Stability: Hastelloy C22 maintains its strength and corrosion resistance even at elevated temperatures, making it suitable for use in high-temperature environments where other materials might fail.

Versatility and Adaptability The alloy can be easily fabricated into pipes and tubes of various sizes and thicknesses, allowing for customization according to specific industrial needs. Its adaptability makes it an ideal choice for complex industrial systems requiring precise fittings.

Superior Mechanical Properties Hastelloy C22 exhibits excellent tensile strength, durability, and flexibility. This ensures that the pipes and tubes can withstand high pressure and mechanical stress without deforming, which is essential in demanding applications.

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Resistance to Stress Corrosion Cracking: In environments where other materials might succumb to stress corrosion cracking, Hastelloy C22 remains reliable due to its unique composition that reduces susceptibility to such failures.

Long Service Life Due to its robust nature and resistance to a wide range of corrosive environments, Hastelloy C22 pipes and tubes offer a longer service life, resulting in reduced maintenance costs and downtime for industries.

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Applications and Uses in Different Industries

Hastelloy C22 pipes and tubes are used across a wide range of industries due to their exceptional properties. Here are some of the key industries and applications where these pipes and tubes are commonly utilized:

Chemical Processing Industry: The chemical processing industry demands materials that can withstand highly corrosive environments. Hastelloy C22 pipes and tubes are ideal for handling aggressive chemicals, including sulfuric acid, hydrochloric acid, and chlorides, commonly found in chemical reactors, distillation columns, and piping systems.

Oil and Gas Industry: In the oil and gas industry, where materials are exposed to harsh conditions like sour gas environments, Hastelloy C22’s resistance to sulfide stress cracking and pitting corrosion makes it a preferred choice for piping, tubing, and equipment used in extraction, refining, and transport processes.

Pharmaceutical Industry: The stringent requirements of the pharmaceutical industry for purity and cleanliness in process equipment make Hastelloy C22 pipes and tubes suitable for applications where contamination must be avoided. Their corrosion resistance ensures that there are no unwanted reactions with the compounds being processed.

Environmental Engineering: Hastelloy C22 is used in pollution control equipment, such as flue gas desulfurization systems, scrubbers, and waste treatment plants, where resistance to a variety of aggressive media is essential.

Power Generation: In power generation, particularly in geothermal, nuclear, and fossil fuel plants, Hastelloy C22 pipes and tubes are used in heat exchangers and other critical components that are exposed to high temperatures and corrosive conditions.

Marine Applications: The marine environment is highly corrosive due to the presence of saltwater. Hastelloy C22 pipes and tubes are used in desalination plants, shipbuilding, and offshore platforms, where resistance to seawater corrosion is crucial.

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Hastelloy C22 pipes and tubes offer unparalleled performance in some of the most demanding industrial environments. Their exceptional corrosion resistance, high-temperature stability, and mechanical strength make them indispensable in industries such as chemical processing, oil and gas, pharmaceuticals, and power generation. As industries continue to evolve and face increasingly harsh operating conditions, the demand for reliable materials like Hastelloy C22 will only grow, cementing its position as a leading choice for piping and tubing solutions.

What Is A Specification Of Hastelloy C22 Pipes & Tubes?

Specifications : ASTM B622, B619, B626 / ASME SB622, SB619, SB626
Seamless Size : 1 / 8" NB - 24" NB
ERW Size : 1 / 8" NB - 36" NB
EFW Size : 6" NB - 100" NB
Outer Diameter : 6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB
Length : Single Random, Double Random & Required Length
Schedule : SCH20, SCH30, SCH20, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Types : Seamless / ERW / EFW / Welded / Fabricated / LSAW Pipes
Form : Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, “U” Shape, Pan Cake Coils, Hydraulic Tubes

What Are Equivalent Grades Of Hastelloy C22 Pipes & Tubes?

Grade DIN UNS JIS BS GOST EN
Hastelloy C22 N06022 2.4602 NW 6022 - - NiCr21Mo14W
Hastelloy C276 N10276 2.4819 NW 0276 - ХН65МВУ NiMo16Cr15W

What Are Chemical Composition Of Hastelloy C22 Pipes & Tubes?

Grade Ni C Mn Co S Si Cr Mo Fe W v p
Hastelloy C22 Bal 0.01 max 0.50 max 2.5 max 0.02 max 0.08 max 20 – 22.5 12.5 – 14.5 2 – 6 2.5 – 3.5 0.35 max 0.02 max
Hastelloy C276 Bal 0.01 max 1.0 max 2.5 max 0.03 max 0.08 max 14.5 – 16.5 15 – 17 4 – 7 3 – 4.5 0.35 max 0.04 max

What Are Mechanical Properties Of Hastelloy C22 Pipes & Tubes?

Grade Density Melting Point Yield Strength (0.2%) Offset Tensile Strength Elongation
Hastelloy C22 8.69 g/cm3 1399 °C (2550 °F) Psi – 1,00,000 , MPa – 690 Psi – 45000 , MPa – 310 45 %
Hastelloy C276 8.89 g/cm3 1370 °C (2500 °F) Psi – 1,15,000 , MPa – 790 Psi – 52,000 , MPa – 355 40 %

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