Incoloy 800HT square plate
Incoloy 800HT square plate is a nickel-iron-chromium based high-temperature alloy. It is strengthened by adding titanium and aluminum and optimizing the carbon content (0.06% to 0.10%). It is usually made by hot rolling or cold rolling. The surface is treated by pickling or polishing. It has high dimensional accuracy. Common thicknesses are from 5 to 50 mm.
Incoloy 800HT square plate is widely used in high-temperature and high-pressure environments. It is used in reactor flanges of ethylene cracking units, supports of nuclear power evaporators, and heating room modules of sulfuric acid regeneration systems. Its excellent creep resistance and corrosion resistance can extend the life of equipment.
In the aerospace field, Incoloy 800HT square plate is used in combustion chamber components. It can reduce weight by 15% and keep the seal.
Features of Incoloy 800HT square plate
High-temperature resistance: Incoloy 800HT square plate can be used continuously at a maximum temperature of 1100°C. It has excellent oxidation resistance, especially in sulfur-containing environments.
Mechanical strength: By solid solution strengthening and precipitation strengthening, Incoloy 800HT square plate still has high creep resistance at 650°C (allowable stress is about 45 MPa).
Corrosion resistance: Incoloy 800HT square plate has good resistance to reducing acids like nitric acid and phosphoric acid, and to molten salt media. But it should be used with caution in hydrochloric acid.
Workability: Hot working of Incoloy 800HT square plate should be done at 900 to 1200°C. After cold working, it needs annealing at 1170°C to relieve stress.
Applications of Incoloy 800HT square plate
Energy field: Incoloy 800HT square plate is used for pyrolysis reactor square flanges (such as in ethylene cracking units) and nuclear power evaporator supports. It can endure long-term service at 800°C.
Chemical equipment: Incoloy 800HT square plate is used to make heating room square modules in sulfuric acid regeneration systems. It effectively resists condensing acid corrosion.
Special scenarios: Incoloy 800HT square plate is used in the transition section of aerospace engine combustion chambers. It has a laser-cut square plate welded structure. It reduces weight by 15% while ensuring sealability.
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Parameter |
Specification |
Remarks |
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Standard Sizes (mm) |
Stock Sizes: 1000×1000, 1200×2400, 1500×3000, 2000×4000 |
Tolerances: ±1mm (for length ≤2000mm), laser/waterjet cutting available |
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Custom: ≤6000×3000 (Max. single plate weight ≤5 tons) |
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Thickness (mm) |
Thin Plate: 5~10 (±0.2mm) |
Special orders: 60~100mm (requires pre-forging) |
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Medium Plate: 12~30 (±0.5mm) |
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Thick Plate: 32~50 (±1.0mm) |
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Surface Finish |
- Pickled: Ra ≤3.2μm |
Polished plates come with protective film; pickling recommended for corrosive environments |
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- Mirror Polish: Ra ≤0.8μm |
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- Sandblasted: Sa2.5 grade |
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Mechanical Properties (Room Temp.) |
- Tensile Strength (Rm): ≥450 MPa |
At 700°C, tensile strength remains ≥300 MPa |
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- Yield Strength (Rp0.2): ≥180 MPa |
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- Elongation (A5): ≥30% |
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- Hardness (HB): ≤200 |
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High-Temperature Performance |
- Operating Range: -200°C to +1100°C |
Long-term use recommended ≤800°C; avoid sulfide-induced intergranular corrosion |
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- Oxidation Limit: ≤1150°C (intermittent) |
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- Creep Resistance: ≤850°C (20MPa/100,000h) |
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Processing Condition |
- Solution Annealed: 1175°C±15°C, water quenched |
Welding: Use ERNiCr-3 filler, preheat ≥150°C |
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- Cold Rolled: Requires stress-relief annealing |
FAQ
Are you a factory or manufacturer?
A: Yes, we are a factory but we generally use our trading company to handle the business abroad. It will be more convenient to receive the remittance and arrange the shipment.
What is the delivery method?
A: Generally, we send cargo by UPS, DHL or FedEx. Also, we can send by sea to seaport or by air to the closest airport.
Why is your product so cost-effective?
A: We cut out the middlemen in the end-to-end manufacturing process and we obtain raw material directly from its source.
Do you do spot quality inspection or full inspection?
A: 100% full inspection for sure. All unqualified products are discarded.
How do you ensure your lead time?
A: From material preparation to machining and finally to a full inspection. Every stage of production is strictly monitored and controlled to give you an accurate delivery time.
What is the MOQ of Incoloy 800HT square plate ?
A: Depends on quantity, generally, no MOQ limit.
How to pay for it?
A: A bank transfer (T/T) will be acceptable.
What is the delivery time?
A: around 7-20 days which depends on the quantity and production.
What is kind of the package?
A: Generally, we use a carton case or plywood case with protective material inside to ensure the save of cargo
What is the lead time?
A: from order placed to cargo receiving will take around 10-25 days.
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