Durable Incoloy 800HT High Temperature Alloy Strip for Furnace and Heat Exchanger Systems

Incoloy 800HT (UNS N08811) is an advanced nickel-chromium alloy designed for high-temperature applications requiring excellent strength, oxidation resistance, and long-term stability. With its optimized composition and enhanced properties, this alloy is ideal for demanding industries such as renewable energy, waste treatment, and oil & gas, as well as semiconductor manufacturing.

1. Optimized Composition:
   Incoloy 800HT offers a balanced mix of Nickel (Ni) 30-34%, Chromium (Cr) 19-22%, and Niobium (Nb) 0.3-0.7%. The alloy also includes an optimized combination of Titanium (Ti) and Aluminum (Al) ≥0.85%, enhancing its overall high-temperature performance.

2. Surface Options:
   Available in mill finish or grit-blasted surface finishes (#180–#320), Incoloy 800HT ensures smooth surfaces suitable for various applications.

3. Precision Fabrication:
   Ultra-thin Incoloy 800HT strips (0.05±0.002 mm thick) are available up to 1,200 mm wide, allowing for highly precise manufacturing to meet your specific needs.

1. Creep Resistance:
   Incoloy 800HT exhibits exceptional creep resistance, with a steady-state creep rate of 1.2×10⁻⁸ s⁻¹ at 750°C/100 MPa, making it highly reliable in high-temperature environments.

2. Fatigue Strength:
   This alloy demonstrates 1.8× improvement in cyclic stress endurance (250 MPa, over 10⁷ cycles), making it durable for long-term use in demanding conditions.

3. Carburization Resistance:
   Incoloy 800HT resists carburization, with a penetration depth of ≤50 µm after 1,000 hours in a CH4 atmosphere.

4. Grain Boundary Engineering (GBE):
   The alloy benefits from advanced grain boundary design, increasing its rupture life by 40% and improving its overall mechanical properties.

1. Double Melting Process:
   Incoloy 800HT is produced using Vacuum Induction Melting (VIM) and Electroslag Remelting (ESR), ensuring ASTM E45 A-level inclusion control and superior material quality.

2. Nano-Coated Rolls:
   The rolls are coated at a submicron level to achieve superior surface uniformity, further enhancing the alloy's performance in industrial applications.

3. AI-Driven Annealing:
   The AI-driven annealing process utilizes machine learning algorithms to predict the optimal annealing temperatures, stabilizing grain size at ASTM 6–8, thus improving the alloy's overall strength and ductility.

1. Dynamic Strain Aging (DSA):
   The alloy’s high-temperature strength is enhanced by modulating the dislocation density, improving its overall resistance to creep and fatigue.

2. Hall-Petch Optimization:
   Incoloy 800HT benefits from Hall-Petch optimization, where the yield strength increases by 25% when the grain size is reduced to 5 µm, ensuring excellent performance under stress.

3. Computational Design:
   CALPHAD modeling is used to adjust Ti/C/N ratios, effectively suppressing the formation of the harmful σ-phase, which enhances the alloy's long-term stability.

1. Renewable Energy:
   Incoloy 800HT is used in interconnects for solid oxide fuel cells, offering excellent ASR (<10 mΩ·cm²) and ensuring high efficiency in renewable energy systems.

2. Waste Treatment:
   This alloy is also used in catalyst substrates for dioxin decomposition in incinerators, offering durability in extreme chemical environments.

3. Semiconductor Manufacturing:
   Incoloy 800HT is used for heat treatment fixtures with exceptional flatness (≤0.02 mm/m), ensuring high precision in semiconductor manufacturing.

4. Oil & Gas:
   The alloy is used in flexible risers for sour service, offering H2S partial pressure resistance up to 5 MPa, making it ideal for deep-sea oil exploration.

1. Market Leader
   We are one of the top 5 in China’s nonferrous metal industry, known for producing high-quality alloys.

2. Flexible Product Range
   Thousands of product specifications to meet the diverse needs of our customers.

3. Low MOQ
   We offer the flexibility of customized samples with low minimum order quantities.

4. Fast Lead Time
   We provide quick production and fast delivery, ensuring your requirements are met on time.

5. Professional Inspection
   We utilize advanced testing equipment, such as spectrometers and tensile testers, to ensure every product meets the highest quality standards.

6. Expert Sales Team
   Our team provides 24/7 support and professional recommendations to help you choose the right product.

7. Intact Packaging
   Packaging tailored to customer needs, with custom wooden boxes to ensure safe delivery.

8. Various Payment Methods
   Flexible payment options, including T/T, L/C, PayPal, and others.

9. Customer Satisfaction
   We have established long-term relationships with clients, some of whom have been with us for over 7 years.

10. Award Recognition
    We receive recognition and awards for our high standards, with Google awarding us annually for excellence.

CHANGZHOU DLX ALLOY CO, LTD was established in 2002 and has got ISO9001 International Quality Management System Certificate and SGS Certificate. Our factory is professional in researching and producing special alloy material. From melting, drawing, heat treatment, finishing and testing .We offer nickel based, copper-based, and iron-based alloys, including super alloy, welding materials, anti-corrosion alloy, Precision Alloy , FeCrAl alloy, NiCr alloy, CuNi alloy, thermocouple and etc, in the form of wire, strip, ribbon, bar, tube, plate.

Our 12,000㎡ factory is equipped with complete capabilities for research, production, testing, and packaging. We strictly adhere to ISO 9001 standards in our production processes, with an annual output of 1,200 tons. This ensures that we meet both quantity and quality demands. Furthermore, all products undergo rigorous simulated environment testing including high temperature, high pressure, and corrosion tests before being dispatched, ensuring they meet customer specifications. We also provide chemical analysis reports for every FeCrAl alloy, NiCr alloy, and other products purchased.

For all our clients, we offer timely and multilingual after-sales support and technical consulting, helping you resolve any issues swiftly and efficiently.

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FAQ

1. How can I contact your company?
We are always available through email, phone and WhatsApp.
Phone: +86 199 0611 9641

Email: sales8@dlx-alloy.com

2. What are your working hours?
Our hours are Monday to Saturday from 7:30 AM to 5:00 PM (Beijing Time, GMT+08:00). For holiday inquiries, please email us.

3. Do you offer free samples?
Yes, we provide free samples for testing, though customers are responsible for shipping costs.

4. What are your payment terms?
We accept T/T, L/C, D/A, D/P, PayPal, and Western Union.

5. What is the lead time for orders?
Sample lead time is typically 7 days after payment. Standard orders take 10-30 days, depending on quantity.