Can Duplex plates withstand exposure to chloride environments, such as seawater or brackish water, without experiencing pitting or crevice corrosion?
Duplex plates are highly resistant to pitting and crevice corrosion in chloride-rich environments, including seawater and brackish water. The duplex microstructure, with its combination of austenite and ferrite phases, provides excellent corrosion resistance. The presence of chromium, molybdenum, and nitrogen in the duplex stainless steel plate further enhances its resistance to chloride-induced corrosion.
Duplex stainless steel sheet supplier in India
How does the duplex microstructure, consisting of austenite and ferrite phases, contribute to the overall performance of the Duplex stainless steel plate?
The duplex microstructure in Duplex stainless steel plates plays a crucial role in their performance. It consists of both austenite and ferrite phases offering a unique combination of properties. The austenite phase provides high strength, excellent toughness and good weldability while the ferrite phase contributes to corrosion resistance and enhanced stress corrosion cracking resistance.
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Duplex stainless steel plate
Duplex steel plate
What are the specific properties and characteristics of Duplex steel plates that make them suitable for applications requiring high strength and corrosion resistance?
Duplex steel plates possess specific properties and characteristics that make them ideal for applications demanding both high strength and corrosion resistance. They offer excellent mechanical properties including high tensile strength & yield strength which allow for the use of thinner plates without compromising structural integrity.
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Duplex steel sheet
- Thickness: 0.01~200mm
- Width: 1000 – 3500mm
- Length: 2000 – 6000mm
Dss hot rolled plate
- ASTM A240
- ASTM A167
Duplex cold rolled plate
- Hot rolled plate (HR)
- Cold rolled sheet (CR)
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What are the key factors to consider when selecting the right grade and thickness of Duplex stainless plate for a specific application?
When choosing the appropriate grade and thickness of Duplex stainless plate for a specific application, several factors should be considered. First the operating environment, including temperature, chemical composition and exposure to corrosive substances, plays a crucial role. The desired mechanical properties such as strength and toughness must align with the application requirements.
Are there any specific certifications or standards that Duplex sheet should meet, such as ASTM or NORSOK specifications?
Yes Duplex sheets are expected to meet specific certifications and standards to ensure their quality and performance. ASTM such as ASTM A240 or ASTM A480 provide guidelines for the general requirements, dimensions and mechanical properties of Duplex sheets. In addition NORSOK specifications particularly the MDS for Duplex stainless steel set forth stringent requirements for materials used.
Are there any limitations or considerations for the use of Stainless steel duplex plates in terms of welding, heat treatment, or post-fabrication processes?
While Stainless steel duplex plates offer many advantages, certain considerations should be taken into account during welding, heat treatment, and post-fabrication processes. Welding duplex plates requires attention to ensure proper heat input, interposes temperature control, and the use of suitable filler materials to prevent the formation of harmful phases and maintain corrosion resistance.