Quality Duplex Steel S31803 Pipes for Industrial Applications

Duplex Steel & Alloys is a well known manufacturer and supplier of Duplex Steel S31803 Pipes; thus, the industry applies it in various sectors such as oil and gas, chemicals, marine and power generation. Duplex Steel Pipes are manufactured according to global requirements; they resist various climates, proving their reliability and durability. We are a Mumbai, India-based company that provides industries with the best quality Duplex Steel S31803 Pipes.

Key Features of Duplex Steel S31803 Pipe

Chemical Composition

The Duplex Steel S31803 Pipe boasts a unique chemical composition, which provides excellent strength, corrosion resistance, and fatigue resistance. The key components include:

• Nickel (4.5-6.5%): Helps develop stable austenitic structures, improving its general resistance to corrosive conditions, especially in acidic conditions.
• Nitrogen (0.08-0.2%): Enhances the strength and load-bearing feature of the alloy with enhanced resistance to pitting, crevice corrosion and chloride stress corrosion cracking.
• Manganese (2%): Assists in the management of the content of the steel microstructure of the ferrite and austenite structures, which are critical in both the strength and corrosion of the metallic material.
• Iron (balance): Serves as the frame component, providing the material with the necessary strength and promoting the formation of a positive impact on the properties of the alloying elements.

These elements balance the microstructure and offer the best characteristics of ferritic and austenitic steels, making the Duplex Steel S31803 Pipe highly corrosion resistant.

Mechanical Properties and Applications

Duplex Steel S31803 Pipes exhibit exceptional mechanical properties, making them suitable for demanding applications:

• Elongation: Up to 25% – They are bendable because of the high ductility of Duplex Steel S31803 Pipes. This feature makes them appropriate for use in shipbuilding, pressure vessels and other industries where there is a need for deformation.
• Hardness: 250-300 HV – Pipe material has a sufficiently high hardness to ensure it is particularly resistant to wear and finding the application in the arrangements where mechanical tradition or abrasive situations occur.
• Impact Toughness:The material has a very good tolerance to low temperatures, making it suitable for use in offshore or deep sea environments.

Heat Resistance and Durability

S31803 Duplex Steel Pipes also exhibit good high temperature features as they apply high temperature strength and retain their mechanical characteristics when exposed to high temperatures. It has a high degree of thermal fatigue resistance and is appropriate for heat exchange systems, power plant boilers and turbines. The antioxidant properties minimise the formation of oxidation and scaling, making these materials have better and longer service than other materials used at high temperatures.

Standards and Compliance

We ensure that our Duplex Steel S31803 Pipes comply with stringent international standards:

• EN 10088: This European standard for corrosive resistant stainless steels ensures that our Duplex Steel S31803 Pipes are highly resistant to corrosion in marine and chemical applications.
• ISO 9001 Certification: Many of our manufacturing processes have been ISO 9001 certified, so we are very diligent at keeping quality consistent and up with the best manufacturing practices.
• ASME Certifications:We operate within the ASME guidelines to make sure that our products are suitable to meet the technical demands of high pressure applications in the oil & gas, power generation and chemical processing industries.

Industries and Applications

Marine:

Duplex Steel S31803 Pipes are highly resistant to seawater corrosion and thus find application in shipbuilding, bulkheads, offshore structures, and any other sea-based structures exposed to harsh marine conditions.

Power Generation:

Duplex Steel S31803 Pipes are used in boilers, heat exchangers, turbines and other high pressure temperature applications. They offer better heat resistance and strength to provide longer service delivery and reduced maintenance expenses in power generation systems.

Construction & Infrastructure:

The mechanical properties regarding strength and wear and tear make Duplex Steel S31803 Pipes suitable for use in heavy structures in construction equipment industries, pressure vessels and other structures requiring high load capacity.

Quality Control and Third Party Testing

We prioritise quality assurance through comprehensive testing, including:

• Non-Destructive Testing (NDT): Methods like ultrasonic testing, radiographic test and dye penetrant test are used for inspecting the surface and internal pipes to ascertain its soundness without causing any harm to the piped material.
• Corrosion Testing: To evaluate the durability of the pipes, we perform accelerated corrosion testing to determine pitting, crevice and stress corrosion cracking performance in harsh environments.
• Third-Party Audits and Inspections:Our production lines are independently audited and, where necessary, inspected by third party agencies regularly to meet ASTM, ASME, and ISO standards.

Comparison: Duplex S31803 vs. 2205

Duplex S31803 and Duplex 2205 are highly corrosion resistant materials. Duplex 2205 (or UNS S32205) contains more nitrogen than 2205, and it is stronger and has even better resistance to corrosion, especially in chloride influenced areas. It is thus appropriate for highly competitive environments, including the oil and natural gas, marine and chemical sectors. S31803 has slightly lower corrosion resistance and tensile strength than the Duplex 2205.

Logistics and Product Documentation

We ensure seamless delivery of Duplex Steel S31803 Pipes, providing all necessary documentation to facilitate smooth transactions:

• Secure Packaging: Our Duplex Steel S31803 Pipes are carefully packed by our team of professionals to reach the customers in perfect condition without any damage caused by transportation. We are very careful to ensure the pipes are well protected from the environment and any form of physical harm.
• Certificate of Compliance: Every order is supplied with a compliance certificate that confirms that the pipes are manufactured according to the industry standards and requirements.
• Test Reports and Quality Certificates: Third-party certification test reports and quality certificates are offered to clients to assure them of the pipe's performance and compliance with international standards.

Why Choose Duplex Steel & Alloys?

Duplex Steel & Alloys stands out as the preferred supplier of Duplex Steel S31803 Pipes due to our:

• Global Presence: Our clients include industries from across the globe for whom we have bespoke services and products.
• Certificate of Compliance: Every order is supplied with a compliance certificate that confirms that the pipes are manufactured according to the industry standards and requirements.
• Custom Solutions: We have pipes in different sizes and measurements, various surface finishes and treated for certain projects.

Duplex Steel & Alloys offers the highest quality Duplex Steel S31803 Pipes to meet the highest levels of pressure and performance. Contact us today to learn how we can help you achieve your project requirements.

Duplex Stainless Steel S31803 Pipe Specification

Types of Duplex Stainless Steel S31803 Pipes

UNS S31803 Pipe Equivalent Material

Duplex Steel S31803 Pipe Pressure Rating, Duplex Steel S31803 Pipe Weight Per Foot, ASTM A928 UNS S31803 EFW Pipe, Duplex Steel S31803 Pipe Suppliers in Mumbai.

Duplex Stainless Steel S31803 Pipe Price List

Duplex Stainless Steel S31803 Pipe Schedule Chart

Duplex Steel S31803 Pipe Weight Chart

Stock available for Range of Duplex Steel S31803 Pipes

Tests of ASTM A790 S31803 Duplex Stainless Steel Pipes

Before being prepared for shipment to the customer, ASTM A790 S31803 Duplex Stainless Steel Seamless Pipes Testing should be constructed in accordance with applicable standards and thoroughly tested for potential flaws.

ASTM A790 S31803 Duplex Stainless Steel Pipes Supply Range

Product Description	Wall Thickness, WT (In MM)	Outside Diamter, OD (In MM)
Inner/Outside Polished Pipes	1.00 – 5	12.05 To 203.02
Square Pipe	0.05 to 30	12.07* 12.07 To 300* 300
Round Pipe	0.05 to 30	6 – 630
Rectangular Pipe	0.05 to 30	10*20 To 100*200

Duplex Steel S31803 Pipe - Comparing International Standards

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UNS S31803 Seamless Pipes Supply in Below Countries

Common Application for Duplex Stainless Steel S31803 Pipe