ASME SB423 UNS N08825 WELDED PIPES

ASME SB 423 UNS N08825 Welded Pipes

ASME SB 423 UNS N08825 Welded Pipes are high-performance nickel-iron-chromium alloy piping solutions designed for exceptional resistance to corrosion and chemical attack. Manufactured from Nickel Alloy 825 (UNS N08825), these welded pipes offer excellent strength and durability in both elevated and moderately high temperature environments.

Produced in accordance with ASME SB 423 specifications, UNS N08825 Welded Pipes provide outstanding resistance to pitting, crevice corrosion, stress corrosion cracking, and reducing as well as oxidizing acids. The addition of molybdenum, copper, and titanium enhances resistance to sulfuric and phosphoric acids while ensuring structural stability and long-term reliability in aggressive industrial conditions.

Specifications of ASME SB 423 UNS N08825 Welded Pipes

Product Type	ASME SB 423 UNS N08825 Welded Pipes
Material Grade	Nickel Alloy 825 (UNS N08825)
Standard	ASME SB 423 / ASTM B423
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

• Excellent Corrosion Resistance: Resists pitting, crevice corrosion, and stress corrosion cracking.
• Superior Acid Resistance: Performs well in sulfuric and phosphoric acid environments.
• High Mechanical Strength: Maintains strength across a wide temperature range.
• Good Fabricability: Easily welded and formed without compromising structural integrity.
• Resistance to Oxidation and Scaling: Suitable for moderately high-temperature applications.
• Durable Weld Seams: Advanced welding processes ensure leak-proof and robust construction.
• Long Service Life: Reduces maintenance costs and operational downtime.

Applications of ASME SB 423 UNS N08825 Welded Pipes

• Chemical Processing Industry: Acid production and handling systems.
• Oil & Gas Industry: Sour gas service and offshore applications.
• Petrochemical Plants: Process piping exposed to corrosive media.
• Pollution Control Equipment: Scrubbers and exhaust systems.
• Marine Applications: Components exposed to seawater environments.

Quality Assurance

ASME SB 423 UNS N08825 Welded Pipes undergo strict inspection and testing procedures to ensure full compliance with ASME and ASTM standards.

• Chemical Composition Testing: Verification of nickel, chromium, molybdenum, copper, and titanium content.
• Mechanical Testing: Tensile strength, hardness, and flattening tests.
• Non-Destructive Testing (NDT): Radiographic and ultrasonic examination of welds.
• Hydrostatic Testing: Ensures pressure resistance and leak-proof performance.
• Certification: Mill Test Certificates (MTC) as per EN 10204 3.1.

Conclusion

ASME SB 423 UNS N08825 Welded Pipes deliver exceptional corrosion resistance, mechanical strength, and reliable welded construction for demanding industrial environments. Manufactured to international quality standards, these pipes ensure safety, durability, and long-term operational efficiency.