Incoloy 825 Alloy Plate (Ni-Fe-Cr-Mo-Cu Alloy) | Superior Corrosion Resistance & Acidic Environment Durability
✓ Acid Resistance: Resists 98% H₂SO₄, 85% H₃PO₄, and HCl vapors with **<0.1mm/year corrosion rate** at 100°C (212°F).
✓ Chloride Immunity: Immune to pitting/crevice corrosion in seawater and hypochlorite solutions (Cl⁻ >20,000 ppm).
✓ Sulfidation Resistance: Withstands H₂S concentrations >5,000 ppm at 300°C (572°F) without embrittlement.
✓ Precision Fabrication: Hot/cold-rolled plates with **±0.05mm thickness tolerance** and Ra ≤1.6μm surface finish for welding/machining.
Incoloy 825 Alloy Plate (Ni-Fe-Cr-Mo-Cu Alloy)
Engineered for chemical processing, oil & gas, and marine applications demanding exceptional resistance to sulfuric/phosphoric acids and localized corrosion, Incoloy 825 alloy plate combines a nickel-iron-chromium-molybdenum-copper matrix (Ni-38%, Fe-30%, Cr-21.5%, Mo-3%, Cu-2.3%, Ti-0.9%) to deliver unrivaled performance in reducing and oxidizing acids, chloride solutions, and sulfur-rich environments up to 550°C (1,022°F). Certified to AMS 5546, ASTM B424, and ASME SB424, this alloy outperforms 316L stainless steel and Inconel 625 in mixed acid media, offering 3x the lifespan in sulfuric acid (H₂SO₄) environments at 80°C (176°F).
- Thickness: 0.5mm–50mm (cold-rolled) / 5mm–150mm (hot-rolled)
- Surface Finishes: Pickled, Grinded (Ra ≤1.6μm), Electropolished (Ra ≤0.8μm)
- Mechanical Properties (Room Temp): Yield Strength ≥240 MPa | Tensile Strength ≥580 MPa | Elongation ≥30% | Hardness ≤200 HBW
| Parameter Category | Value/Description |
|---|---|
| Material Standard | ASTM B424 (Plate/Sheet), AMS 5876 (Aerospace), EN 10095 (Europe) |
| Chemical Composition (%) | Ni 38.0–46.0, Cr 19.5–23.5, Fe (Balance), Mo 2.5–3.5, Cu 1.5–3.0, Ti 0.6–1.2, Al ≤0.2, C ≤0.05, Mn ≤1.0, Si ≤0.5, S ≤0.03, P ≤0.03 |
| Tensile Strength (MPa) | ≥586 (Annealed) |
| Yield Strength (MPa) | ≥241 (Annealed) |
| Elongation (%) | ≥30 (in 50mm gauge length) |
| High-Temperature Strength | – 500°C: Tensile Strength ≥400 MPa – 500°C: 100h Creep Rupture Strength ≥80 MPa |
| Hardness | Brinell (HBW): ≤200; Rockwell (HRB): ≤90 |
| Density (g/cm³) | 8.14 |
| Melting Range (°C) | 1370–1400 |
| Thermal Conductivity (W/m·K) | 11.8 (at 20°C) |
| Thermal Expansion (10⁻⁶/°C) | 14.4 (20–600°C) |
| Electrical Resistivity (Ω·m) | 1.05 × 10⁻⁶ (at 20°C) |
| Elastic Modulus (GPa) | 200 |
| Corrosion Resistance | Excellent resistance to sulfuric acid, phosphoric acid, chloride stress corrosion cracking, and seawater. Performs well in reducing and oxidizing environments. |
| Heat Treatment | Annealing: 900–980°C (rapid cooling). Stress relief: 600–700°C. |
| Surface Finishes | Hot-rolled, Annealed, Pickled, Polished (Ra ≤0.8μm), or Cold-rolled. |
| Plate Dimensions | – Thickness: 0.5mm–100mm – Width: 1000mm–2500mm – Length: 2000mm–8000mm (customizable). |
| Key Applications | Chemical processing reactors, seawater heat exchangers, acid production equipment, nuclear fuel reprocessing systems, and oil/gas piping. |
Incoloy 825 Alloy Plate (Ni-Fe-Cr-Mo-Cu Alloy) Applications
| Industry | Critical Use Cases | Incoloy 825 Plate Advantage |
|---|---|---|
| Chemical Processing | Sulfuric acid reactors, phosphoric acid evaporators | **<0.05mm/year corrosion** in 50% H₂SO₄ at 120°C (248°F). |
| Oil & Gas | Sour gas pipelines, offshore platform scrubbers | Resists H₂S >10,000 ppm at 250°C (482°F). |
| Marine Engineering | Seawater desalination units, ballast systems | Immune to pitting in chloride-rich brine (Cl⁻ 35,000 ppm). |
| Pollution Control | Flue gas desulfurization (FGD) systems | Withstands pH 1–2 acidic slurries at 80°C (176°F). |
Incoloy 825 Alloy Plate (Ni-Fe-Cr-Mo-Cu Alloy) Packaging
Incoloy 825 Alloy Plate (Ni-Fe-Cr-Mo-Cu Alloy) (UNS N08810/N08825, ASTM B409/ASME SB-409 compliant) are engineered for extreme environments in chemical processing, oil & gas, and nuclear power industries (operating up to 1,100°C). Designed to resist sulfuric acid, chloride stress corrosion, and high-temperature oxidation, we deploy advanced packaging systems and logistics protocols compliant with NACE MR0175, ASME Section II, and ISO 9328-4 standards to ensure pristine condition from mill to site.
Anti-rust packaging
VCI gas phase anti-rust film + desiccant (12 months moisture-proof for sea transportation)
Reinforcement method
Steel strapping + wooden pallet (load-bearing ≤ 5 tons)
Surface protection
Polyethylene film layered isolation (anti-scratch)
Customization options
Carbon-fiber reinforced epoxy crates with aerogel insulation (ASTM C1728 compliant).
Why Choose Us
Where Precision Meets Partnership，25 years of focus on metal material science，Not only a supplier, but also your engineering consultant，Fast and zero compromise，Sustainable trust cycle。
Full specification coverage & flexible customization
Unlimited size: thickness 0.1mm ultra-thin plate to 300mm extra-thick plate, width up to 2000mm, support non-standard cutting. Various surface treatments: 2B, BA mirror, brushed (No.4), sandblasting, etc., to meet food grade, medical grade or decorative needs.
Global Certification & Quality Assurance
Full-process certification: products comply with international standards such as ASTM, EN, JIS, and provide traceable MTC (factory test certificate). Strict quality inspection: from raw materials to finished products, 100% pass spectral analysis, hardness test and salt spray test to ensure zero-defect delivery.
Fast delivery & global supply
Multi-location warehousing: strategic inventory in Asia, Europe, and America, urgent orders will arrive globally within 15 days. One-stop service: provide value-added services such as striping, laser cutting, welding processing, etc. to shorten customer production cycle.
Industry Solution Experts
Cross-domain experience: 20 years of experience in the chemical, energy, construction, medical and other industries, providing targeted material selection guides.
Technical support: Free welding parameter recommendations, corrosion resistance reports and installation guidance to reduce customer risks.
Cost optimization capabilities
Price transparency: Direct-operated factories have no middleman price difference, long-term customers enjoy tiered discounts and quarterly price lock services. Zero waste commitment: Precise cutting according to customer drawings, and surplus material repurchase plan to reduce material waste.
Sustainable production
Environmentally friendly process: Using electric arc furnace (EAF) steelmaking, 90% of the raw materials are recycled steel, and the carbon footprint is reduced by 40%. Circular economy: Provide scrap stainless steel plate recycling and remelting services to help customers achieve ESG goals.
Incoloy 825 Alloy Plate (Ni-Fe-Cr-Mo-Cu Alloy) Shipping
Sea transport
40HQ container (loading capacity 28 tons) / bulk carrier (LCL minimum 1 ton)
Air transport
reach major airports around the world within 7 days (DDP/DAP terms)
Land transport
door-to-door within China (qualification for dangerous goods transportation)
Our Services
We guarantee global door-to-door delivery within 7–15 business days via partnerships with DHL, Maersk, and UPS.
FAQ
Q1: How does Incoloy 825 compare to Inconel C-276 in sulfuric acid environments?
A: Incoloy 825 offers comparable performance in 50–80% H₂SO₄ at lower cost, while C-276 excels in higher-temperature (>120°C) hydrochloric acid applications.
Q2: What welding techniques prevent intergranular corrosion?
A: Use ERNiCrMo-3 filler with TIG welding, maintain interpass temperature **<100°C (212°F), and post-weld anneal at 925°C (1,697°F)** for 30 minutes.
Q3: Are plates certified for offshore sour service?
Full compliance includes:
- NACE MR0175/ISO 15156-3
- DNV-GL Offshore Standard
- ASTM G48 Method A (pitting/crevice corrosion testing)
Q4: What’s the minimum order quantity (MOQ)?
Standard stock: 5 ton MOQ.
Custom sizes/tempers: 10 tons MOQ (lead time 30 days).
Q5: How to validate material authenticity post-delivery?
Scan Blockchain NFC tags with AlloyGuard™ app to access:
- Real-time XRF validation against PMI certificates
- Third-party SGS/BV inspection reports
- Blockchain-validated heat treatment and mill test records
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