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Situated in Dubai, UAE, Al Vishwas Nickel Alloys distinguishes itself as a premier manufacturer and supplier of Duplex Steel S31803 Pipes, engineered to perform in demanding industrial settings. Leveraging advanced manufacturing methods and an unwavering commitment to quality and accuracy, the company provides piping solutions celebrated for their exceptional corrosion resistance, mechanical strength, and enduring dependability. Al Vishwas Nickel Alloys adheres to global standards, supplying an assortment of sizes and specifications for their Duplex Steel S31803 Pipes to meet a broad spectrum of requirements. They take pride in serving sectors such as oil and gas, petrochemicals, marine engineering, desalination, and power generation, building a name for reliable, high-performance products.
Duplex Steel S31803 Pipes feature a well-balanced ferritic-austenitic microstructure, containing approximately 21–23% chromium, 4.5–6.5% nickel, 2.5–3.5% molybdenum, and nitrogen to enhance strength and corrosion resistance. This distinctive composition offers exceptional protection against pitting, crevice corrosion, and chloride-induced stress corrosion cracking. From a mechanical standpoint, S31803 Pipes provide remarkable tensile and yield strength, dependable impact toughness, and strong fatigue resistance. Their ability to withstand high pressure, temperature fluctuations, and demanding environments makes them ideal for critical, long-lasting industrial 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 A790 / ASME SA790
| Duplex | S31803 |
|---|---|
| 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; |
At Al Vishwas Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel S31803 Pipe in Dubai, UAE, delivering advanced solutions for every one of your piping requirements. Our modern manufacturing facilities are strategically positioned in the UAE, enabling us to keep an extensive stock of more than 16,000 tons of top-quality materials always available on hand. We are committed to providing outstanding products and services, guaranteeing dependability and excellence for our worldwide customers.
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Duplex Steel S31803 Pipes are used across a range of industries where strength, corrosion resistance, and durability cannot be compromised. Within the oil and gas sector, they play a vital role in pipelines, offshore platforms, heat exchangers, and subsea systems. The chemical and petrochemical fields rely on them for processing lines, reactors, and equipment exposed to corrosive materials. On top of that, the marine and shipbuilding industries make use of S31803 Pipes for seawater handling systems, owing to their outstanding resistance to chlorides.