Nickel Alloy Seamless Pipe Inconel 600/625 Corrosion Resistant High Temp ASTM B167 for Oil Gas

Nickel Alloy Seamless Pipe Inconel 600/625 Corrosion Resistant High Temp ASTM B167 for Oil Gas

1. Product Description 

Nickel alloy pipe is a tubular product based on nickel, alloyed with elements such as chromium, molybdenum, iron, titanium, and aluminum. It is available in both seamless and welded types. Manufactured through cold rolling, cold drawing, or hot working processes, nickel alloy pipes can be produced as precision bright tubes, seamless pipes, and other forms, with outer diameters ranging from 0.8mm to 1200mm.

Common nickel alloy pipe grades include Inconel® series (e.g., Inconel 600, 625, 718), Monel® series (e.g., Monel 400), Hastelloy® series (e.g., Hastelloy C-276), and nickel-chromium alloys (e.g., Alloy 800). Different grades are formulated with varying alloy compositions to meet diverse service conditions ranging from cryogenic to high temperatures, and from strong acids to strong alkalis. Products comply with international standards including ASTM B161, B165, B163, B407, B423, B444, B622, B729 and ASME SB series.

2. Product Applications 

Nickel alloy pipes are widely used in the following critical industrial sectors:

• Oil & Gas Industry: Oil and gas extraction, transmission pipelines, and downhole tools

• Chemical & Petrochemical Processing: Reactors, heat exchanger tube bundles, piping systems handling aggressive media such as sulfuric acid, hydrochloric acid, and hydrofluoric acid

• Power Generation & Nuclear: Boiler components, condensers, steam generator tubing, and nuclear reactor auxiliary systems

• Aerospace: Engine exhaust piping and high-temperature structural components

• Marine Engineering: Seawater piping systems and ship components resistant to seawater corrosion

• Pollution Control & Environmental Protection: Flue gas desulfurization and waste gas treatment equipment

• Electronics & Semiconductor: High-temperature vacuum furnace tubes, semiconductor diffusion equipment, and heat treatment furnace tubes

• Food Processing: Food handling equipment maintaining sterile and hygienic conditions

3. Product Advantages 

1. Superior Corrosion Resistance: Nickel alloy pipes exhibit excellent resistance to a wide range of corrosive media, including strong acids (sulfuric, hydrochloric, hydrofluoric), alkaline solutions, salts, and chlorides, effectively resisting general corrosion, pitting, crevice corrosion, and stress corrosion cracking.

2. Excellent High-Temperature Performance: Maintain high strength and structural stability at elevated temperatures, with certain grades capable of long-term service up to 1100°C. Also exhibit outstanding resistance to high-temperature oxidation, carburization, and sulfidation.

3. Superior Mechanical Properties: High strength, excellent toughness, and good ductility, with tensile strength ≥520 MPa and elongation up to 30%-40%.

4. Precision Forming & Dimensional Accuracy: Can be manufactured as precision bright tubes with surface roughness Ra≤0.8μm and high dimensional accuracy, suitable for precision equipment with tight tolerance requirements.

5. Long Service Life & Cost Efficiency: Exceptional corrosion and high-temperature resistance significantly extend pipeline service life, reducing maintenance and replacement costs.

4.Key Technical Parameters

Chemical Composition (Typical Range, Varies by Grade)

Mechanical Properties (Room Temperature, Typical Values)

Physical Properties

Size Range

FAQ

1. Are you trading company or manufacturer ? We are manufacturer ,You can see the certification.

2.How long is your delivery time? Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

3. Do you provide samples ? is it free or extra ? Yes, we could offer the sample for free charge but need pay the cost of freight.

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