Incoloy 825® (UNS N08825) is a nickel-iron-chromium alloy with titanium, copper, and molybdenum. Incoloy® 825's chemical composition provides great resistance to many corrosive environments, such as pitting, crevice corrosion, intergranular corrosion, and stress-corrosion cracking (SCC) . Incoloy 825® has good mechanical properties from moderate to high temperatures. The hot-working range for Incoloy 825® is 1600 to 2150°F (871 to 1177°C) . The material has good weldability for all conventional processes.
ZYTC Alloy is an ISO 9001 and AS 9120B certified superalloy manufacturer and supplier, offering Incoloy 825 seamless pipe at factory-direct prices with full material traceability and fast global delivery.
Specifications & AvailableIncoloy® 825 seamless pipe is available in various sizes and forms for demanding corrosive service applications. The alloy is commonly used in chemical processing, oil & gas, marine, and pollution control industries. Available Forms: Seamless pipe (up to 8″ NB), welded pipe (larger sizes, 100% X-ray), seamless tube (up to 1-1/2″ OD), redrawn tubes, bar, wire, sheet, plate, forgings, pipe fittings, flanges, weld rod Thickness Range: Sheet: 0.020-0.156″; Strip: lighter gauges up to 12″ wide; Plate: up to 3″ thick Bar Sizes: Wrought bar up to 6″ diameter; larger sizes and shapes forged to order Specifications: ASTM B423 (seamless pipe), ASTM B163 (tube), ASTM B424 (plate), ASTM B425 (bar), UNS N08825, Werkstoff Nr. 2.4858
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Chemical Composition| Chemical Composition (Weight %) | Incoloy 825 Specification |
|---|
| Nickel (Ni) | 38.0 - 46.0 | | Chromium (Cr) | 19.5 - 23.5 | | Iron (Fe) | 22.0 min. (Balance) | | Molybdenum (Mo) | 2.5 - 3.5 | | Copper (Cu) | 1.5 - 3.0 | | Titanium (Ti) | 0.6 - 1.2 | | Carbon (C) | 0.05 max. | | Manganese (Mn) | 1.0 max. | | Silicon (Si) | 0.5 max. | | Sulfur (S) | 0.03 max. | | Aluminum (Al) | 0.2 max. |
| Physical Properties | Metric | Imperial |
|---|
| Density | 8.14 g/cm³ | 0.294 lb/in³ | | Melting Range | 1370 - 1400°C | 2500 - 2550°F | | Modulus of Elasticity | 196 GPa | 28.4 × 10⁶ psi | | Coefficient of Expansion (20-100°C) | 14.0 µm/m·°C | 7.8 µin/in·°F | | Thermal Conductivity | 11.1 W/m·K | 77 BTU·in/hr·ft²·°F |
| Mechanical Properties (Seamless Pipe – Annealed) | Metric | Imperial |
|---|
| Tensile Strength (min.) | 585 MPa | 85 ksi | | Yield Strength (0.2% offset, min.) | 240 MPa | 35 ksi | | Elongation (min.) | 30% | 30% | | Hardness | 150-220 HB | 150-220 HB |
ApplicationsChemical Processing: Piping systems, reactors, heat exchangers for sulfuric and phosphoric acid service Oil & Gas: Downhole tubing, wellhead components, sour gas service Marine: Seawater piping, offshore platform equipment Pollution Control: Flue gas desulfurization (FGD) scrubbers Nuclear: Fuel reprocessing equipment, waste handling General Industrial: Pickling equipment, chemical tankers
Available Product Forms & Sizes| Form | Size Range | Notes |
|---|
| Seamless Pipe | Up to 8″ NB | Larger sizes available in welded construction | | Welded Pipe | Larger sizes | 100% X-ray inspected | | Seamless Tube | Up to 1-1/2″ OD | Redrawn tubes with tight tolerances available | | Sheet | 0.020-0.156″ thickness | — | | Strip | Lighter gauges, up to 12″ wide | Coil form | | Plate | Up to 3″ thick | — | | Wrought Bar | Up to 6″ diameter | Larger sizes forged to order | | Butt-weld and forged fittings | Standard and custom | Short lead times available |
Request a quote for Incoloy® 825 Seamless Pipe (UNS N08825) – Nickel-Iron-Chromium Alloy – Excellent Corrosion Resistance . Please provide: Pipe size (NB) and schedule Wall thickness and length required Quantity (kg, meters, or pieces) Destination port Any special certification requirements (NACE MR0175, etc.)
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