United Stainless LLP is a top Duplex Steel Sheets Manufacturer in India that produces high-performance sheets that are characterized by high strength, high corrosion resistance, and extended service life. Duplex steel sheet is designed to work in the environment with high pressure and hard environment and thus it can work in the critical industrial applications. We provide duplex steel sheets of the international standards with stringent quality and international benchmarks of quality and performance.
Overview of Duplex Steel Sheets
Duplex steel sheets are ductile steels with a two phase microstructure comprising of roughly equivalent portions of austenite and ferrite. This special structure offers a compromise in mechanical strength and great stress corrosion cracking resistance. The duplex steel sheets have better durability and pitting resistance compared to conventional austenitic stainless steel, and increased load-bearing capacity.
These sheets have extensive applications in industries where the material needs to be able to withstand hostile chemical conditions and heat, as well as mechanical forces.
Key Material Properties
The major benefit of duplex sheets of steel is that they are very strong with high level of corrosion resistance especially in chloride laden environments. Their balanced microstructure increases their resistance in cracking and increases their overall performance in pressure.
Additional material properties include:
- High tensile and yield strength
- Excellent resistance to pitting and crevice corrosion
- Superior stress corrosion cracking resistance
- Good weldability and formability
- High impact toughness
- Cost-effective due to reduced nickel content
Duplex steel sheets are appropriate in the long-term use in the severe industrial conditions due to these properties.
Material Specifications
- Thickness Range: 0.5 mm to 50 mm (custom sizes available)
- Width: Up to 2000 mm
- Length: Standard and customized lengths
- Standards: ASTM A240, ASTM A790, ASTM A276
- Grades: UNS S32205 (2205), UNS S31803, UNS S32750 (2507), UNS S32760
- Surface Finish: 2B, BA, No.1, No.4, HR, CR
- Form: Hot rolled and cold rolled sheets
These standards guarantee the duplex steel sheets are of high mechanical and corrosion-resistance standards in industries.
Industrial Applications
Duplex steel sheets find wide application in industries where resistance to corrosion is as important as is the strength.
Typical applications include:
- Oil & gas pipelines and pressure vessels
- Chemical processing equipment and storage tanks
- Heat exchangers and condensers
- Marine structures and shipbuilding components
- Pulp and paper industry equipment
- Water treatment and desalination plants
They are highly resistant to chloride corrosion and, thus, make them especially efficient in the marine and offshore applications.
Manufacturing Excellence
The growing requirement of high-performance stainless steels has focused on the consideration of the source of manufacture. Being a reputed Duplex Steel Sheets Manufacturer, we maintain high chemical composition, homogeneity of microstructure, and high dimensional tolerance.
The Indian manufacturers have world recognition in terms of high level of production plants, labor force and adherence to international standards. All the duplex steel sheets pass through rigorous testing activities such as mechanical testing, corrosion testing, and surface inspection so that there are no discrepancies in quality.
Supply and Distribution Network
Stable supply chain is the key to the continuous industrial functioning. A reliable Duplex Steel Sheets Supplier in India is one that guarantees delivery to the oil and gas industry, marine, chemical, power generation, and heavy engineering industries, among other industries.
Value-added services to the trusted Duplex Steel Sheets Suppliers are the provision of material test certificates, technical consultation, custom sizing, and selection of grade specific to the application to achieve maximum performance and cost effectiveness.
Conclusion
Duplex steel sheets have continued to be a popular material in industries that demand considerable strength and corrosiveness with low cost. Their multi-functional applications in oil and gas, marine, chemical and infrastructure industries suggest their relevance in the current industrial engineering. The collaboration with reputed manufacturers and suppliers will be the source of accessing duplex steel sheets which will combine a consistent performance, safety and long-term reliability.
Frequently Asked Questions
Duplex steel sheets offer high strength, excellent corrosion resistance, superior resistance to stress corrosion cracking, and good weldability.
Common grades include Duplex 2205 (UNS S32205), S31803, Super Duplex 2507 (UNS S32750), and S32760.
They are widely used in oil & gas, chemical processing, marine structures, heat exchangers, desalination plants, and pressure vessels.