Sahil Metals, based in Riyadh, Saudi Arabia, is a reputable manufacturer and supplier of top-quality stainless steel products designed for industrial, marine, and structural uses. One of their standout products is the **Duplex Steel Flat Bar**, celebrated for its remarkable mechanical strength, resistance to corrosion, and precise dimensions. These flat bars are crafted to comply with international standards and are distributed across various industries in Saudi Arabia and the GCC.
**Duplex Steel Flat Bars** are generally produced from grades like UNS S31803 or S32205, which provide a well-balanced microstructure of austenite and ferrite. This unique dual-phase structure offers nearly double the yield strength compared to standard austenitic stainless steels, along with exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking. Additionally, these flat bars boast good weldability, high fatigue strength, and impressive toughness — even in freezing temperatures.
| Size | : | 10 mm To 100 mm Dia in 100 mm TO 6000 mm Length. |
| Standard | : | ASTM A276, A479 / ASME SA276, SA479, ASTM A789 / A789M & ASTM A928 / A928M |
| Grade | : | UNS NO. S 31803, S 32205, S 32550, S 32750, S 32760. |
| Finish | : | Bright, Polish & Black |
| End | : | Flat |
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
S32205 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 21.0 – 23.0 | 2.50 – 3.50 | 4.50 – 6.50 | 0.8 – 0.20 | 63.54 min |
| Grade | Density | Melting point | Yield strength(0.2% offset) | Tensile strength | Elongation |
|---|---|---|---|---|---|
| S32750/S32760 | 7.8g/cm3 | 1350°C(2460°F) | PSi-80000, MPa-550 | PSi-116000, MPa-800 | 15% |
To maintain Duplex Steel Flat Bars, regularly clean them to remove debris, inspect for corrosion, and apply protective coatings if necessary. Ensure proper storage to prevent exposure to harsh chemicals or extreme conditions.
Yes, Duplex Steel Flat Bars are suitable for natural gas applications due to their excellent corrosion resistance and strength, making them ideal for pipelines and equipment exposed to natural gas environments.
Duplex Steel Flat Bars are partially magnetic due to their ferritic phase. While not as magnetic as pure ferritic steels, they may exhibit some magnetic properties, especially in certain conditions.
**Applications** for Duplex Flat Bars include structural supports, frameworks, brackets, base plates, and components used in offshore platforms, chemical plants, desalination systems, and pressure vessels. Their flat design makes them perfect for fabrications that require strength, corrosion resistance, and clean, precise edges. With their durability, cost-effectiveness, and outstanding performance in challenging environments, Duplex Steel Flat Bars are a dependable choice for demanding engineering and structural projects.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Sahil Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Riyadh, Saudi Arabia
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