ASME SB 622 UNS N010276 SEAMLESS Pipes
ASME SB 622 UNS N010276 SEAMLESS Pipes are manufactured from high-performance
nickel-molybdenum-chromium alloy (Hastelloy C-276) designed to provide
exceptional resistance to severe corrosive environments. UNS N010276
offers outstanding resistance to pitting, crevice corrosion, stress
corrosion cracking, and aggressive chemical attack, even in highly
oxidizing and reducing media.
Produced through advanced seamless hot extrusion and cold drawing processes,
ASME SB 622 UNS N010276 Pipes ensure uniform wall thickness, superior
dimensional accuracy, and excellent mechanical strength. These pipes
are widely used in chemical processing, oil & gas, marine, pollution
control, and power generation industries where extreme corrosion
resistance and reliability are critical.
Specifications of ASME SB 622 UNS N010276 SEAMLESS Pipes
| Product Type |
ASME SB 622 UNS N010276 SEAMLESS Pipes |
| Material Grade |
UNS N010276 (Hastelloy C-276) |
| Standard |
ASME SB 622 / ASTM B622 |
| Manufacturing Process |
Seamless (Hot Rolled / Cold Drawn) |
| Size Range |
1/2" NB to 24" NB (Custom Sizes Available) |
| Wall Thickness |
Schedule 10 to Schedule XXS (Custom Thickness Available) |
| Length |
Single Random / Double Random / Custom Cut Lengths |
| Surface Finish |
Annealed / Pickled / Polished / Mill Finish |
| End Types |
Plain End (PE), Beveled End (BE), Threaded (On Request) |
Key Benefits
- Exceptional Corrosion Resistance: Performs reliably in highly aggressive chemical
environments.
- Resistance to Pitting & Crevice Corrosion: Superior performance in chloride-containing
solutions.
- Outstanding Stress Corrosion Cracking Resistance: Suitable for harsh industrial
conditions.
- Excellent High-Temperature Stability: Maintains strength and integrity under elevated
temperatures.
- Resistance to Wet Chlorine & Hypochlorite: Ideal for chemical and pollution control
systems.
- Good Fabricability & Weldability: Can be formed and welded using compatible
nickel-based filler metals.
- Dimensional Accuracy: Seamless construction ensures uniform thickness and superior
structural integrity.
Installation Guidelines for ASME SB 622 UNS N010276 SEAMLESS Pipes
Proper installation ensures long-term performance and corrosion resistance in demanding service conditions.
- Material Identification: Verify UNS N010276 grade before fabrication and installation.
- Qualified Welding Procedures: Use approved welding techniques and compatible filler
materials.
- Avoid Contamination: Prevent contact with carbon steel tools and chloride
contamination.
- Post-Weld Cleaning: Remove heat tint and oxide scales after welding.
- Pressure Testing: Conduct hydrostatic or pneumatic testing before commissioning.
Maintenance Tips
Regular inspection and maintenance help maximize service life in severe environments.
- Routine Inspection: Check for surface corrosion, pitting, or mechanical damage.
- Surface Cleaning: Remove chemical deposits and process residues.
- Weld Monitoring: Inspect weld joints for integrity and cracking.
- Environmental Assessment: Monitor exposure to aggressive chemicals and chlorides.
- Periodic NDT Testing: Perform ultrasonic or radiographic testing as required.
Industries Using ASME SB 622 UNS N010276 SEAMLESS Pipes
- Chemical Processing Industry: Reactors, heat exchangers, and acid handling systems.
- Oil & Gas Industry: Sour gas, offshore, and subsea applications.
- Pollution Control Systems: Flue gas desulfurization and scrubbers.
- Marine Industry: Seawater systems and corrosive marine environments.
- Power Generation Plants: High-temperature and high-pressure piping systems.
- Petrochemical Plants: Critical corrosion-resistant process piping.
Quality Assurance
ASME SB 622 UNS N010276 SEAMLESS Pipes undergo strict quality control
procedures to ensure compliance with international standards and
demanding corrosion-resistant service applications.
- Chemical Composition Testing: Verification of nickel, molybdenum, chromium, iron, and
tungsten content.
- Mechanical Testing: Tensile, yield, hardness, and bend testing.
- Hydrostatic Testing: Ensures leak-proof and pressure-resistant performance.
- Non-Destructive Testing (NDT): Ultrasonic, Radiographic, or Dye Penetrant testing.
- Dimensional Inspection: OD, wall thickness, and length verification.
- Mill Test Certificates (MTC): Supplied with each delivered batch.
Conclusion
ASME SB 622 UNS N010276 SEAMLESS Pipes provide exceptional resistance to
aggressive chemical environments, high mechanical strength, and long-term
durability. Their seamless construction and advanced alloy composition
make them an ideal choice for oil & gas, petrochemical, marine, and
pollution control industries requiring superior corrosion resistance
and operational safety.
