Product Description
INCOLOY 800 is a nickel-iron-chromium alloy known for its exceptional strength and resistance to oxidation, carburization, and other forms of high-temperature corrosion. It is engineered for use in environments requiring high temperature strength, excellent structural stability, and resistance to aggressive environments.
Key Features
-
High-Temperature Resistance:
Excellent performance at elevated temperatures, maintaining structural integrity and mechanical properties.
-
Corrosion Resistance:
Outstanding resistance to oxidation, carburization, and sulfidation in aggressive environments.
-
Thermal Stability:
Excellent creep and rupture strength due to its controlled nickel and chromium content.
-
Versatility:
Suitable for both oxidizing and reducing environments in various industries.
Chemical Composition
Element |
Content (%) |
Nickel (Ni) |
30.0 - 35.0 |
Chromium (Cr) |
19.0 - 23.0 |
Iron (Fe) |
39.5 min |
Carbon (C) |
≤ 0.10 |
Manganese (Mn) |
≤ 1.5 |
Silicon (Si) |
≤ 1.0 |
Copper (Cu) |
≤ 0.75 |
Titanium (Ti) |
0.15 - 0.60 |
Aluminum (Al) |
0.15 - 0.60 |
Mechanical Properties
Property |
Value |
Tensile Strength |
≥ 450 MPa (65 ksi) |
Yield Strength |
≥ 170 MPa (25 ksi) |
Elongation |
≥ 30% |
Density |
7.94 g/cm³ |
Melting Range |
1357-1385°C (2475-2525°F) |
Operating Temperature |
Up to 1100°C (2012°F) |
Applications
- Petrochemical and Refining: Heat exchangers, furnace components, and hydrocarbon cracking systems.
- Nuclear Power Plants: Steam generator tubing.
- Chemical Processing: Vessels and piping exposed to corrosive chemicals.
- Heat-Treating Industry: Fixtures, trays, and baskets.
- Power Generation: Superheater and reheater tubing.
Advantages
- Enhanced Durability: Resistant to creep and rupture at elevated temperatures.
- Corrosion Performance: Excellent resistance to oxidation and carburization in extreme environments.
- Formability: Easily fabricated into plates, sheets, and other forms.
- Long Service Life: Suitable for prolonged exposure to high temperatures.
Product Availability
- Forms: Plates, sheets, coils, and custom dimensions.
- Thickness Range: Wide range, customizable upon request.
- Surface Finish: Polished, annealed, or as required.
Summary
INCOLOY 800 (UNS N08800) is a premium nickel-iron-chromium alloy designed for applications in harsh, high-temperature, and corrosive environments. Its exceptional mechanical strength, corrosion resistance, and thermal stability make it an ideal material for various industrial applications. Plates and sheets are available in various sizes and finishes to meet diverse operational requirements.
Detailed Photos


Product application

Factory workshop

Company Profile

Shandong Titanium Nickel Special Steel Co., Ltd., registered funds (one thousand yuan for 10,000 yuan), the company is mainly committed to high -tech enterprises that are integrated with special alloy materials, specializing in the research and sales of special alloys such as nickel -based and iron -based. Products include corrosion-resistant alloys, superalloys, precision alloys, Hastelloy, Monel, INCONEL, INCOLOY, copper-nickel alloys, titanium and titanium alloys, zirconium and zirconium alloys, nickel and nickel-based alloys, nickel-cobalt-based heat-resistant alloys , Hafnium alloy, etc., more than 60 kinds of alloy materials such as special stainless steel. On the basis of stabilizing the quality of the original products, according to the market demand, it solves the quality problems existing in the traditional metallurgical process, and ensures the low miscellaneous and low deflection of the alloy material products, which has won an excellent reputation in the industry.
Packaging & Shipping

FAQ
1. What is INCOLOY?
INCOLOY is a family of nickel-iron-chromium alloys designed for excellent corrosion resistance and high-temperature strength. These alloys are widely used in industries such as chemical processing, power generation, and aerospace due to their durability in extreme environments.
2. What are the key grades of INCOLOY?
- INCOLOY 800: High strength and excellent resistance to oxidation and carburization at elevated temperatures.
- INCOLOY 800H/800HT: Modified versions of 800 with enhanced creep-rupture strength.
- INCOLOY 825: Excellent resistance to acid attack, particularly sulfuric and phosphoric acids.
- INCOLOY 925: High strength and corrosion resistance in sour gas environments.
- INCOLOY 945/945X: Designed for oil and gas applications with superior corrosion resistance.
3. What are the main applications of INCOLOY?
- Chemical and Petrochemical Processing: Heat exchangers, piping systems, and reactors.
- Power Plants: Superheaters, reheaters, and heat recovery systems.
- Oil and Gas: Downhole equipment and sour gas environments.
- Marine: Desalination plants and seawater piping systems.
- Aerospace: Engine components and high-temperature structural parts.
4. How is INCOLOY different from INCONEL?
While both are nickel-based alloys, the key difference lies in their composition and application:
- INCOLOY: Primarily nickel-iron-chromium alloys, ideal for environments requiring resistance to both heat and corrosion.
- INCONEL: Primarily nickel-chromium-based, with superior performance in high-temperature environments.
5. What forms is INCOLOY available in?
- Sheet
- Plate
- Coil
- Strip
- Bar
- Pipe
- Tube
- Fittings and Flanges
6. What industries commonly use INCOLOY?
- Chemical processing
- Oil and gas
- Power generation
- Aerospace
- Marine and desalination
7. Can INCOLOY be welded?
Yes, INCOLOY can be welded using standard welding techniques, such as TIG, MIG, or stick welding. It's recommended to use matching filler materials, and proper pre-weld and post-weld practices should be followed to avoid cracking or corrosion issues.
8. What are the temperature limits for INCOLOY alloys?
Temperature limits vary by grade:
- INCOLOY 800: Up to 1100°F (593°C) for long-term use, higher for short durations.
- INCOLOY 825: Typically up to 1000°F (538°C).
- INCOLOY 800H/800HT: Optimized for use at 1100-1800°F (593-982°C).
9. What is the chemical composition of INCOLOY alloys?
The composition varies by grade, but a typical INCOLOY alloy includes:
- Nickel (30-46%)
- Iron (Balance)
- Chromium (19-30%)
- Small amounts of molybdenum, titanium, aluminum, and other elements, depending on the grade.
10. How can I contact you for more information?
You can contact us through the following methods:
Online support: Visit our website for live chat
Address:
300 Meters North of Liaoniu Road and Xindong Ring Road, Liaocheng High-Tech Zone, Liaocheng, Shandong, China
We look forward to providing you with high-quality products and services!
If you have any other questions, feel free to contact us, and we will do our best to assist you!