ASME SB 407 UNS N08811 WELDED PIPES

ASME SB 407 UNS N08811 Welded Pipes

ASME SB 407 UNS N08811 Welded Pipes are high-performance nickel-iron-chromium alloy piping solutions engineered for exceptional strength and stability in elevated temperature environments. Manufactured from Nickel Alloy 800HT (UNS N08811), these welded pipes offer enhanced creep rupture strength and superior resistance to oxidation and carburization.

Produced in accordance with ASME SB 407 specifications, UNS N08811 Welded Pipes feature controlled carbon, aluminum, and titanium content to ensure optimum high-temperature performance and structural integrity. With advanced welding techniques and strict dimensional accuracy, these pipes deliver reliable and long-term service in critical industrial applications.

Specifications of ASME SB 407 UNS N08811 Welded Pipes

Product Type	ASME SB 407 UNS N08811 Welded Pipes
Material Grade	Nickel Alloy 800HT (UNS N08811)
Standard	ASME SB 407 / ASTM B407
Manufacturing Process	Welded (ERW / TIG / Laser Welded)
Size Range	1/8" NB to 48" NB (Custom Sizes Available)
Wall Thickness	SCH 5 to SCH XXS
Length	Single Random / Double Random / Cut Length
Surface Finish	Pickled / Annealed / Polished / As Welded

Key Benefits

• Superior Creep Rupture Strength: Optimized for long-term exposure to high temperatures.
• Excellent Oxidation Resistance: Performs reliably in continuous high-heat environments.
• Resistance to Carburization: Suitable for furnace and thermal processing systems.
• Enhanced Thermal Stability: Maintains metallurgical integrity during prolonged heat exposure.
• Strong Weld Integrity: Advanced welding ensures durable and leak-proof seams.
• Good Fabricability: Easily formed and welded for complex industrial assemblies.
• Extended Service Life: Minimizes maintenance and operational downtime.

Applications of ASME SB 407 UNS N08811 Welded Pipes

• Petrochemical Industry: High-temperature process piping systems.
• Power Generation Plants: Superheaters, reheaters, and boiler components.
• Heat Treatment Equipment: Radiant tubes and furnace parts.
• Chemical Processing: Handling high-temperature corrosive media.
• Oil & Gas Industry: Refinery and thermal processing systems.

Quality Assurance

ASME SB 407 UNS N08811 Welded Pipes undergo comprehensive inspection and testing procedures to ensure full compliance with ASME and ASTM standards.

• Chemical Composition Testing: Verification of nickel, chromium, iron, carbon, aluminum, and titanium content.
• Mechanical Testing: Tensile strength, hardness, and flattening tests.
• Non-Destructive Testing (NDT): Radiographic and ultrasonic inspection.
• Hydrostatic Testing: Pressure testing for leak-proof performance.
• Certification: Mill Test Certificates (MTC) as per EN 10204 3.1.

Conclusion

ASME SB 407 UNS N08811 Welded Pipes provide outstanding high-temperature strength, oxidation resistance, and dependable welded construction for demanding industrial applications. Manufactured to stringent international standards, these pipes ensure durability, safety, and long-term operational performance.