Product Description
INCOLOY 20 (UNS N08020), also known as Alloy 20, is a nickel-iron-chromium alloy with added copper and molybdenum. It is designed to resist acid attack, particularly sulfuric acid, and offers excellent resistance to stress corrosion cracking and pitting in chloride-containing environments. This alloy is widely used in chemical, pharmaceutical, and food processing industries.
Key Features
- Exceptional Corrosion Resistance: Particularly effective against sulfuric acid and other strong acids.
- Chloride Stress Corrosion Cracking Resistance: Performs well in environments with high chloride concentrations.
- Versatility: Suitable for both chemical and industrial applications.
- Good Weldability: Compatible with most welding methods.
- High Strength and Durability: Retains mechanical properties in challenging conditions.
Chemical Composition (Typical)
| Element |
Percentage |
| Nickel (Ni) |
32.0 - 38.0% |
| Chromium (Cr) |
19.0 - 21.0% |
| Iron (Fe) |
Balance |
| Molybdenum (Mo) |
2.0 - 3.0% |
| Copper (Cu) |
3.0 - 4.0% |
| Carbon (C) |
0.02% max |
| Manganese (Mn) |
2.0% max |
| Silicon (Si) |
1.0% max |
| Phosphorus (P) |
0.045% max |
| Sulfur (S) |
0.035% max |
| Columbium (Cb) |
8x(C) - 1.0% |
Mechanical Properties (Typical)
| Property |
Value |
| Tensile Strength |
80 ksi (550 MPa) min |
| Yield Strength (0.2%) |
35 ksi (240 MPa) min |
| Elongation |
30% min |
| Hardness |
Approx. 200 HB |
Applications
- Chemical Processing: Equipment for handling sulfuric, phosphoric, and nitric acids.
- Pharmaceutical: High-purity systems and chemical reactors.
- Food and Beverage: Process equipment for acidic foods and beverages.
- Marine Engineering: Seawater systems and desalination equipment.
- Pollution Control: Scrubbers and heat exchangers.
Standards and Specifications
- UNS: N08020
- ASTM: B463, B464, B366, B729
- ASME: SB463, SB464, SB366, SB729
- DIN: 2.4660
Corrosion Resistance
- Sulfuric Acid Resistance: Ideal for use in concentrated and dilute sulfuric acid environments.
- Pitting and Crevice Corrosion: Effective in chloride-rich environments, reducing localized attacks.
- Stress Corrosion Cracking: Resistant to cracking under mechanical stress in corrosive settings.
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!
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