- sales@mariapipes.com
- Kuala lumpur, Malaysia
Home > Duplex Steel > Duplex Steel Pipe
At Maria Pipes and Tubes, we take pride in being a leading manufacturer and supplier of **Duplex Steel Welded Pipe** right from the heart of Kuala Lumpur, Malaysia. Our Duplex welded pipes are designed to deliver outstanding strength and resist corrosion, even in the toughest conditions. We prioritize quality, precision, and adherence to international standards, catering to various industries including oil & gas, petrochemicals, marine, and chemical processing. Using cutting-edge welding techniques and rigorous quality control, our Duplex Steel Welded Pipes promise long-lasting reliability, impressive mechanical performance, and strong resistance to chloride-induced corrosion and stress cracking.
What sets **Duplex Steel Welded Pipe** apart is its composition of austenitic-ferritic stainless steel, which creates a balanced microstructure that provides high tensile strength (usually between 620–900 MPa) and remarkable corrosion resistance. Common grades like UNS S31803 and S32205 are known for their exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking, particularly in environments rich in chlorides and acids. Our welding process guarantees a strong, durable joint that maintains the material’s structural integrity. Plus, Duplex steel boasts a higher yield strength compared to traditional stainless steels, making it perfect for pressure and load-bearing applications.
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 Maria 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.
You’ll find **Duplex Steel Welded Pipes** in a variety of applications where strength, corrosion resistance, and cost-effectiveness are crucial. In the oil & gas sector, they’re essential for offshore platforms, subsea pipelines, and heat exchangers. Chemical plants rely on them for transporting aggressive chemicals and acids. Additionally, marine and desalination systems utilize Duplex pipes for handling seawater and brine. They also play a vital role in structural components, pulp & paper processing, and flue gas cleaning systems.
Yes, we offer custom sizes for Duplex Steel Welded Pipes to meet your specific requirements. Our team at Maria Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@mariapipes.com.
Duplex steel welded pipe is widely used in various industries due to their excellent strength and corrosion resistance. In the oil and gas industry these pipes are used onshore and offshore to transport oil, gas and other liquids. It is also used in the pharmaceutical industry to handle harsh chemicals and high temperature environments. In addition, double-sided welded steel pipe finds applications in the marine environment, including seawater systems and desalination plants. Its durability and reliability make it suitable for heat exchangers and power generation systems.
©2024 Maria Pipes and Tubes . All Rights Reserved.
