Incoloy® Alloy Plate (Incoloy 800, 825, 925, etc.)
✓ Acid & Chloride Dominance: Withstands 40% H₂SO₄ at 100°C (212°F) and seawater pitting (Incoloy 825).
✓ Oxidation & Carburization Resistance: Stable Cr₂O₃ oxide layer formation at 1,000°C (1,832°F), reducing scaling by 70% vs. 316L stainless steel.
✓ Thermal Stability: Operates from **-150°C (-238°F)** to 800°C (1,472°F) with no embrittlement.
✓ Precision Fabrication: Hot/cold-rolled plates with **±0.05mm thickness tolerance** and Ra ≤0.8μm surface finish for CNC machining.
Incoloy® Alloy Plate (Incoloy 800, 825, 925, etc.)
Engineered for industries battling highly corrosive, oxidizing, and high-stress environments, Incoloy® alloy plates are nickel-iron-chromium superalloys optimized for chemical processing, oil & gas, and marine applications. With compositions like Incoloy 825 (Ni-42%, Fe-30%, Cr-21%, Mo-3%, Cu-2%), these plates resist sulfuric acid (up to 40%), phosphoric acid, and chloride stress corrosion cracking (Cl-SCC) at 600°C (1,112°F). Certified to ASTM B424, ASME SB424, and NACE MR0175, they outperform stainless steel with 5x longer lifespan in aggressive media while maintaining weldability and machinability.
- Thickness: 0.5mm–150mm (cold/hot-rolled)
- Sizes: 1,000mm x 2,000mm (standard) / custom-cut to 4,000mm x 2,000mm
- Surface Finishes: Pickled, Grinded (Ra ≤1.6μm), Mirror Polished (Ra ≤0.4μm)
- Mechanical Properties (Incoloy 825): Yield Strength ≥240 MPa | Tensile Strength ≥586 MPa | Elongation ≥30% | Hardness ≤200 HBW
| Parameter Category | Incoloy 800 | Incoloy 800H | Incoloy 825 | Incoloy 925 |
|---|---|---|---|---|
| Material Standard | ASTM B409, UNS N08800 | ASTM B409, UNS N08810 | ASTM B424, UNS N08825 | ASTM B805, UNS N09925 |
| Chemical Composition (%) | Ni: 30–35, Cr: 19–23, Fe: ≥39.5, Al: 0.15–0.6, Ti: 0.15–0.6 | Same as Incoloy 800 with higher C: 0.05–0.10 | Ni: 38–46, Cr: 19.5–23.5, Fe: ≥22, Mo: 2.5–3.5, Cu: 1.5–3.0 | Ni: 42–46, Cr: 19–23, Fe: 22–27, Mo: 2.5–3.5, Ti: 1.9–2.4 |
| Tensile Strength (MPa) | 585–750 (Annealed) | 585–750 (Annealed) | 620–760 (Annealed) | 930–1070 (Aged) |
| Yield Strength (MPa) | 240–415 (Annealed) | 240–415 (Annealed) | 240–410 (Annealed) | 760–965 (Aged) |
| Elongation (%) | ≥30 (in 50mm) | ≥30 (in 50mm) | ≥30 (in 50mm) | ≥15 (in 50mm) |
| Hardness | Brinell HBW ≤200 | Brinell HBW ≤200 | Brinell HBW ≤200 | Rockwell C 25–35 |
| Density (g/cm³) | 8.00 | 8.00 | 8.14 | 8.08 |
| Melting Range (°C) | 1350–1400 | 1350–1400 | 1370–1425 | 1350–1400 |
| Thermal Conductivity (W/m·K) | 12.5 (20°C) | 12.5 (20°C) | 11.1 (20°C) | 11.6 (20°C) |
| Thermal Expansion (10⁻⁶/°C) | 14.4 (20–100°C) | 14.4 (20–100°C) | 14.0 (20–100°C) | 13.2 (20–100°C) |
| Max Service Temperature (°C) | 815 (Oxidizing) | 815 (Oxidizing) | 540 (Acid Service) | 425 (Sour Gas Service) |
| Corrosion Resistance | Resists oxidation, carburization, and nitric acid. | Enhanced creep resistance at high temperatures. | Excellent resistance to sulfuric/phosphoric acids and seawater. | Resists sulfide stress cracking (H₂S), chloride pitting. |
| Heat Treatment | Annealing: 980–1035°C. | Annealing: 980–1035°C. | Annealing: 900–980°C. | Aging: 620–760°C after solution treatment. |
| Surface Finishes | Hot-rolled, annealed, pickled. | Same as Incoloy 800. | Pickled & Passivated, Polished (Ra ≤0.8μm). | Ground, Polished (Ra ≤0.6μm). |
| Plate Dimensions | Thickness: 0.5–50mm, Width: 1000–2000mm. | Same as Incoloy 800. | Thickness: 0.5–50mm, Width: 1000–2500mm. | Thickness: 0.5–50mm, Width: 1000–2000mm. |
| Key Applications | Heat exchangers, steam generator tubes, furnace parts. | Petrochemical cracking tubes, ethylene furnace components. | Chemical processing, acid storage tanks, marine components. | Oil/gas downhole tools, sour gas well equipment. |
Incoloy® Alloy Plate (Incoloy 800, 825, 925, etc.) Applications
| Industry | Critical Use Cases | Incoloy® Plate Advantage |
|---|---|---|
| Chemical Processing | Sulfuric acid reactors, pickling tanks | Resists 40% H₂SO₄ at 100°C with **<0.05mm/year corrosion rate**. |
| Oil & Gas | Sour gas pipelines, offshore platform cladding | Immune to H₂S >5,000 ppm at 150°C (302°F). |
| Marine Engineering | Seawater heat exchangers, propeller shafts | Zero pitting in 3.5% NaCl seawater for 15+ years. |
| Power Generation | Flue gas desulfurization (FGD) systems | Withstands HCl/SO₂ gas mixtures at 600°C (1,112°F). |
Incoloy® Alloy Plate (Incoloy 800, 825, 925, etc.) Product Packaging
Incoloy® Alloy Plate (Incoloy 800, 825, 925, etc.) (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
IPPC fumigation wooden box (compliant with ISPM15 standard)
Incoloy® Alloy Plate (Incoloy 800, 825, 925, etc.) 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.
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 specifications and customization
Unlimited size, support non-standard cutting. Multiple surface treatments.
Professional capabilities
25 Years Of Focus On Metal Materials Science
Certification & Quality Assurance
Products comply with international standards such as ASTM, EN, JIS, etc., and are 100% tested from raw materials to finished products
Fast delivery & global supply
Global urgent orders are delivered within 15 days. One-stop service
FAQ
Q1: How does Incoloy 825 compare to Inconel 625 in sulfuric acid environments?
A: Incoloy 825 offers 50% better resistance to H₂SO₄ at 100°C, while Inconel 625 excels in HCl and seawater applications.
Q2: What post-weld heat treatment eliminates sensitization?
A: Anneal at 1,050–1,100°C (1,922–2,012°F) for 30 minutes, followed by rapid air cooling.
Q3: Are plates certified for offshore sour gas service?
Full compliance includes:
- NACE MR0175/ISO 15156
- ASME SB424
- DNV-OS-F101 Subsea Standards
Q4: What’s the minimum order quantity (MOQ)?
Standard stock: 1 ton MOQ.
Custom sizes/tempers: 5 tons MOQ (lead time 35 days).
Q5: How to validate material authenticity?
Scan Blockchain NFC tags with AlloyGuard™ app to access:
- XRF validation against PMI certificates
- Third-party SGS/BV test reports
- Blockchain-validated EN 10204 3.1 certifications
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