ASME SB 407 UNS N08810 SEAMLESS PIPES

ASME SB 407 UNS N08810 SEAMLESS Pipes

ASME SB 407 UNS N08810 SEAMLESS Pipes are manufactured from high-performance nickel-iron-chromium alloy (Incoloy 800H) specifically designed for enhanced creep and rupture strength at elevated temperatures. UNS N08810 offers excellent resistance to oxidation, carburization, and scaling, making it highly suitable for high-temperature structural applications.

Produced through advanced hot extrusion and cold drawing seamless processes, ASME SB 407 UNS N08810 Pipes provide uniform wall thickness, superior dimensional accuracy, and outstanding mechanical integrity. These pipes are widely used in petrochemical plants, power generation facilities, heat treatment equipment, and high-temperature processing industries where long-term thermal stability and creep resistance are critical.

Specifications of ASME SB 407 UNS N08810 SEAMLESS Pipes

Product Type	ASME SB 407 UNS N08810 SEAMLESS Pipes
Material Grade	UNS N08810 (Incoloy 800H)
Standard	ASME SB 407 / ASTM B407
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

• Enhanced Creep Strength: Designed for superior creep and stress rupture resistance at high temperatures.
• Excellent Oxidation Resistance: Performs reliably in oxidizing and high-heat environments.
• Carburization & Scaling Resistance: Ideal for furnace and thermal processing applications.
• High Structural Stability: Maintains metallurgical stability during prolonged exposure to heat.
• Thermal Fatigue Resistance: Withstands repeated heating and cooling cycles.
• Good Fabricability: Can be formed and welded using appropriate nickel-based filler metals.
• Dimensional Precision: Seamless construction ensures uniform thickness and structural integrity.

Installation Guidelines for ASME SB 407 UNS N08810 SEAMLESS Pipes

Proper installation is essential to ensure reliable performance in elevated temperature service.

• Material Verification: Confirm UNS N08810 (800H) grade prior to fabrication.
• Qualified Welding Procedures: Use compatible nickel-based filler materials.
• Clean Handling: Avoid contamination from carbon steel tools and foreign materials.
• Heat Treatment Compliance: Follow specified heat treatment requirements where applicable.
• Pressure Testing: Conduct hydrostatic or pneumatic testing before commissioning.

Maintenance Tips

Routine inspection and preventive maintenance ensure long-term durability in high-temperature environments.

• Regular Inspection: Monitor for scaling, oxidation, or creep deformation.
• Surface Cleaning: Remove deposits that may reduce heat transfer efficiency.
• Weld Inspection: Check weld joints for thermal fatigue or stress cracking.
• Temperature Monitoring: Ensure operating conditions remain within specified limits.
• Periodic NDT Testing: Perform ultrasonic or radiographic inspection when required.

Industries Using ASME SB 407 UNS N08810 SEAMLESS Pipes

• Petrochemical Industry: High-temperature process piping systems.
• Power Generation Plants: Superheater, reheater, and boiler components.
• Heat Treatment Facilities: Furnace tubes and retorts.
• Oil & Gas Industry: High-pressure and high-temperature pipelines.
• Chemical Processing Plants: Equipment exposed to thermal and corrosive environments.
• Refineries: High-heat and catalytic processing units.

Quality Assurance

ASME SB 407 UNS N08810 SEAMLESS Pipes undergo strict quality control procedures to ensure compliance with international standards and demanding high-temperature service requirements.

• Chemical Composition Testing: Verification of nickel, chromium, iron, and controlled carbon content.
• Mechanical Testing: Tensile, yield, hardness, and creep rupture testing.
• Hydrostatic Testing: Ensures pressure-resistant and leak-proof performance.
• Non-Destructive Testing (NDT): Ultrasonic, Radiographic, or Dye Penetrant testing.
• Dimensional Inspection: OD, wall thickness, and length verification.
• Mill Test Certificates (MTC): Provided with each supplied batch.

Conclusion

ASME SB 407 UNS N08810 SEAMLESS Pipes deliver superior high-temperature strength, enhanced creep resistance, and excellent oxidation performance. Their seamless construction and optimized chemical composition make them a dependable solution for petrochemical, power generation, refinery, and thermal processing applications requiring long-term reliability under extreme heat conditions.