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- Tunis, Tunisia
Home > Duplex Steel > Duplex Steel Pipe
Samia Pipes and Tubes is a trusted manufacturer and supplier of Duplex Steel Welded Pipes, operating from Tunis, Tunisia. Built for demanding industrial service, these pipes combine the raw strength of duplex steel with precision welding for dependable, long-term performance. Manufactured using advanced welding technology, tight dimensional control, and rigorous quality inspection, Samia Pipes and Tubes delivers welded pipes that stand strong under pressure, resist aggressive corrosion, and perform reliably in harsh environments. Trusted across oil and gas, chemical, marine, and infrastructure sectors, these pipes are designed for durability, safety, and operational confidence.
These Duplex Steel Welded Pipes are constructed from a well-balanced austenitic-ferritic stainless steel alloy that includes chromium, nickel, and molybdenum, with added nitrogen to boost strength and corrosion resistance. They showcase outstanding mechanical properties, such as high tensile and yield strength, excellent toughness, and remarkable resistance to stress-corrosion cracking, pitting, and crevice corrosion. Built for long-lasting performance in harsh chemical, marine, and high-temperature environments, these pipes maintain their structural integrity and durability, making them ideal for critical industrial applications that demand both reliability and corrosion resistance.
Pipe Range : 1 / 2″ NB – 8″ NB
Outer Diameter : 6.0-630mm
Wall Thickness : 0.3mm – 50 mm
Schedules : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Length : Single Random, Double Random & Required Length
Specifications : ASTM A789 / ASME SA789
Types : Welded / ERW / Fabricated
| Duplex | Welded |
|---|---|
| Ni | 4.50 – 6.50 |
| Fe | 63.72 min |
| Cr | 22.0 – 23.0 |
| C | 0.030 max |
| Si | 1.00 max |
| Mn | 2.00 max |
| P | 0.030 max |
| S | 0.020 max |
| N | 0.14 – 0.20 |
| Grade | S31803 |
| Density (g/cm 3) | 7.805 |
| Density (lb/in 3) | 0.285 |
| Melting Point (°C) | 1420 – 1465 |
| Melting Point (°F) | 2588 – 2669; |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choosing Duplex Steel Welded Pipes from Samia Pipes and Tubes ensures high quality and durability, as these pipes offer excellent corrosion resistance and strength. Our commitment to exceptional service and reliable delivery guarantees customer satisfaction across various industrial applications. Our expertise in stainless steel products ensures you receive a top-tier solution tailored to your needs.
Samia Pipes and Tubes, one of the largest suppliers of Duplex Steel Welded Pipes in Tunis, Tunisia, offers a comprehensive range of high-quality pipes and tubes suitable for various industrial applications. Their extensive inventory and commitment to exceptional service make them a go-to choice for stainless steel products in the region.
Yes, we offer custom sizes for Duplex Steel Welded Pipes to meet your specific requirements. Our team at Samia Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@samiapipes.com.
Duplex Steel Welded Pipes find extensive use in industries where strength and corrosion resistance are paramount. In chemical and petrochemical plants, they safely transport acids, alkalis, and other aggressive substances. In the oil and gas industry, they are utilized in pipelines, heat exchangers, and process equipment that come into contact with seawater and corrosive materials. Power generation facilities employ them in boilers, condensers, and high-temperature systems, while marine industries depend on them for offshore structures and seawater handling applications. Their durability, versatility, and reliability in extreme conditions make them a top choice for various industrial needs.
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