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Hastelloy C-276 Seamless Pipes UNS N10276 Alloy HC276 Seamless Tube

Categories	Nickel Alloy Pipes
Brand Name:	DINGSCO
Model Number:	According to customers' requirements
Certification:	ISO 9001:2015,PED 2014/68/EU,API 6A,API-20B,TSG,NORSOK
Place of Origin:	China
MOQ:	Negotiable
Price:	Negotiable
Payment Terms:	T/T
Supply Ability:	Negotiable
Delivery Time:	(Sample order) 7 days
Packaging Details:	According to customers' requests
Product Name:	Hastelloy C-276 Seamless Pipes UNS N10276 Alloy HC276 Seamless Tube
Material:	Nickel based Alloys
Grade:	UNS N10276
Size:	Customized
Surface:	As per your demands
Application Areas:	Aerospace,Thermal Processing,Oil & Gas,Marine

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Hunan Dinghan New Material Technology Co., LTD

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Hastelloy C-276 Seamless Pipes UNS N10276 Alloy HC276 Seamless Tube

Hastelloy C-276 Seamless Pipes UNS N10276 Alloy HC276 Seamless Tube

Hastelloy C-276 seamless pipe is a high-performance alloy component renowned for its exceptional corrosion resistance, mechanical strength, and versatility in extreme industrial environments. As a seamless variant, it is manufactured without welded joints, ensuring uniform structural integrity and eliminating potential weak points that could compromise performance in critical applications.

Material Composition and Alloy Characteristics
Hastelloy C-276 is a nickel-molybdenum-chromium superalloy with controlled additions of tungsten and iron, formulated to withstand aggressive chemical environments. Its key composition typically includes:

Nickel (Ni): ~57% (base element, providing ductility and resistance to chloride-induced stress corrosion cracking)
Molybdenum (Mo): ~16% (enhances resistance to pitting, crevice corrosion, and reducing acids)
Chromium (Cr): ~15.5% (boosts oxidation resistance and stability in oxidizing environments)
Tungsten (W): ~4% (improves overall strength and resistance to localized corrosion)
Trace elements: Iron (Fe), cobalt (Co), carbon (C), and silicon (Si), each contributing to specific mechanical and chemical properties.
This unique alloy blend makes Hastelloy C-276 virtually immune to a wide range of corrosive media, including sulfuric acid, hydrochloric acid, phosphoric acid, chlorine, and chloride solutions—substances that often degrade conventional stainless steels or carbon steels. It also exhibits excellent resistance to stress corrosion cracking (SCC), pitting, and crevice corrosion, even at elevated temperatures.

Seamless Manufacturing Advantage
The seamless production process distinguishes this pipe from welded alternatives. Manufactured through methods like piercing a solid billet and cold drawing or hot rolling to achieve the desired dimensions, Hastelloy C-276 seamless pipes offer:
Uniform wall thickness and dimensional precision, critical for pressure-containing applications.
Enhanced structural integrity, as the absence of welds eliminates risks of porosity, inclusions, or residual stress that can weaken welded pipes.
Superior flow characteristics, ensuring unobstructed fluid or gas movement, which is vital in chemical processing and fluid handling systems.
Available in various sizes (OD, ID, and wall thickness) and specifications (e.g., ASTM B622, ASME SB622), these pipes can be customized to meet specific industrial requirements, from small-diameter tubing for laboratory equipment to large-diameter pipes for industrial infrastructure.

Key Performance Properties
Hastelloy C-276 seamless pipes excel in demanding conditions due to their outstanding properties:

Corrosion Resistance: Unmatched resistance to both oxidizing and reducing environments, including acids (sulfuric, hydrochloric, nitric), alkaline solutions, and wet chlorine gas. It also resists pitting and crevice corrosion in chloride-rich environments, making it ideal for marine or coastal applications.
High-Temperature Stability: Retains strength and corrosion resistance at elevated temperatures (up to 1,900°F / 1,038°C), suitable for high-heat processes like thermal processing or exhaust systems.
Mechanical Strength: Good tensile strength, ductility, and impact resistance, allowing it to withstand pressure, vibration, and mechanical stress in dynamic operating conditions.
Weldability and Fabricability: While seamless pipes avoid welds in their structure, the alloy itself offers good weldability using proper techniques, enabling easy integration into complex systems when needed.

Applications Across Industries
The unique combination of properties makes Hastelloy C-276 seamless pipes indispensable in industries requiring reliability in harsh environments:

Chemical Processing: Used in reactors, pipelines, and storage systems for handling corrosive chemicals, acids, and solvents.
Oil and Gas: Employed in offshore drilling equipment, sour gas handling, and production lines where exposure to hydrogen sulfide (H₂S) and chloride ions is prevalent.
Pharmaceuticals and Food Processing: Ideal for sanitary piping systems due to its corrosion resistance and ease of cleaning, ensuring product purity.
Environmental Engineering: Utilized in waste treatment plants, flue gas desulfurization (FGD) systems, and pollution control equipment.
Aerospace and Defense: Applied in high-temperature exhaust systems, rocket propulsion components, and marine propulsion systems.
Nuclear Industry: Used in coolant systems and radiation-resistant components due to its stability under radiation and corrosive coolants.

Hastelloy C-276 seamless pipe represents a premium solution for critical applications where corrosion resistance, structural integrity, and performance under extreme conditions are non-negotiable. Its seamless design, coupled with the alloy’s inherent strengths, ensures long-term reliability, reduces maintenance costs, and minimizes downtime—making it a preferred choice for engineers and o

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Hastelloy C-276 Seamless Pipes UNS N10276 Alloy HC276 Seamless Tube

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