Home > Duplex Steel > Duplex Steel S31803 Pipe
Located in the heart of Naypyidaw, Wai Nickel Alloys stands as a dedicated manufacturer and supplier of high-performance materials, with a specialized focus on Duplex Steel Pipes S31803. We understand that industrial success relies on durable and reliable components, which is why we are committed to providing pipes that excel in challenging environments. Our local presence ensures we can offer not just superior products, but also responsive support and expert guidance tailored to the specific needs of projects across Myanmar.
Duplex Steel S31803 boasts a carefully balanced composition of chromium, nickel, molybdenum, and nitrogen, which gives it a unique mixed microstructure of austenite and ferrite. This structure is the secret to its exceptional strength, offering roughly double the yield strength of standard austenitic stainless steels. It also provides excellent toughness and superior resistance to stress corrosion cracking, making it a robust choice for demanding applications where both strength and corrosion resistance are non-negotiable.
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 Wai Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel S31803 Pipe in Naypyidaw, Myanmar, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Myanmar, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
The remarkable blend of strength and corrosion resistance in S31803 pipes makes them incredibly versatile. They are a preferred choice in offshore and marine environments for seawater piping systems, as well as in the oil and gas industry for flow lines and pipelines. You’ll also find them extensively used in chemical processing plants, petrochemical facilities, and in pulp and paper production, wherever equipment must withstand aggressive chemicals, high pressures, and corrosive conditions without compromising on structural integrity or longevity.
