Alloy 825 (UNS N08825) Manufacturer, Supplier. Contact us to get free quote and sample!
Chemical production environments often face multiple corrosions from mixed strong acids (sulfuric acid/phosphoric acid/hydrofluoric acid), high-temperature chlorides, and stress corrosion cracking (SCC). Alloy 825 (UNS N08825), as a titanium-stabilized nickel-iron-chromium-molybdenum-copper alloy, has become the industry's first choice through its triple corrosion protection mechanism.
Incoloy 825 Plate Suppliers
HT PIPE is a well-known stockist and exporter. We are a Hastelloy B2 material supplier with 15+ export experience. We not only provide plate, Incoloy 825 N08825 Pipe, round bars, but also pipe fittings, flanges, etc. Contact us for more information and prices for free.
Why should you choose Alloy 825 pipe?
Incoloy 825 tube corrosion resistance
- Strong acid corrosion resistance: Corrosion rate <0.1 mm/year (316L>5 mm/year) in 80°C, 50% sulfuric acid, and tolerance to ≤70% hot sulfuric acid, fluorinated phosphoric acid and hydrofluoric acid mixed media.
- Chloride stress corrosion resistance (SCC): The critical SCC threshold reaches 10,000 ppm Cl⁻ (316L is only 1,200 ppm), solving the risk of cracking in high-temperature chlorine-containing media.
- Anti-oxidation/sulfurization: Oxidation rate in 450°C incineration tail gas is less than 0.1 g/m²·h (conventional austenitic steel is greater than 2 g/m²·h).
UNS N08825 pipe High temperature stability
Maintain yield strength ≥241 MPa at 540°C, suitable for 250°C nitration reactor pipelines and 450°C waste acid incineration tail gas pipes.
Elongation ≥40%, resistant to thermal fatigue and vibration cracking, adapt to temperature/pressure fluctuations in chemical processes.
alloy n08825 tube Strong acid medium transportation system
- Sulfuric acid regeneration device: used for pickling line heating coils and waste acid transportation pipelines, resistant to ≤70% concentration, 120°C hot sulfuric acid, with a service life of more than 15 years (carbon steel pipelines are only 6–12 months).
- Phosphoric acid concentration evaporator: In high-temperature (90–110°C) phosphoric acid slurry containing fluorosilicates, the pitting resistance is better than Hastelloy C276, and the cost is reduced by 40%.
825 incoloy pipe High temperature reaction system
- Aniline nitration reactor pipeline: In nitric acid/organic acid mixed medium (temperature 200–250°C), maintain yield strength ≥310 MPa and avoid thermal creep deformation.
- Chlorinated hydrocarbon synthesis loop: Resist chloride ion + hydrogen sulfide dual-phase corrosion, pass NACE MR0175 anti-sulfur certification.
N08825 steel pipe Waste acid treatment and environmental protection equipment
- Waste acid incinerator tail gas pipe: At a high temperature of 450°C containing SO₂/HCl gas, the oxidation rate is <0.1 g/m²·h (conventional austenitic steel>2 g/m²·h).
- Acid wastewater reuse system: Electrolytically polished inner wall (Ra≤0.8μm) to prevent scaling, meet FDA 21 CFR 177.1520 food grade contact standards.
