INCOLOY 825 Seamless Pipe | Sulfur Compound Solution
Incoloy seamless pipe with 42% Fe-Ni-Cr composition combats sulfuric acid stress cracking. Features Ti-stabilized design for refinery burner pipes handling 550°C exhaust gases. Discover our incoloy 825 seamless pipe options for reliable performance.
| Technical Specifications | |
| Sulfuric Acid Resistance | Up to 40% @65°C |
| Heat Treatment | Annealed at 980°C |
| Weldability | ENiCrMo-3 filler |
| PMI Testing | XRF on every pipe |
| Package | Nitrogen purged |
INCOLOY 825 (UNS N08825) contains 38-46% nickel with copper addition (1.5-3.0%) for sulfuric acid resistance. Titanium stabilization (0.6-1.2%) prevents sensitization.
Stress Rupture: 100 MPa @700°C/10,000h
Yield Strength Retention: 220 MPa @550°C
Oxidation Rate: <0.5 mg/cm²/100h @900°C
Thermal Fatigue: 300+ cycles (20-800°C)
Continuous extrusion with multi-stage cold drawing. Solution annealing at 980°C. 100% rotary ultrasonic testing to ASTM E213 Level B.
Coke drum quenching systems
Hydrotreater charge heater coils
Sour water stripper reboilers
Sulfur recovery unit condensers
API 934-C • NACE TM0177-2016 • SHELL MESC SPE 87/102
