Sahil Metals, located in Riyadh, Saudi Arabia, is a reliable supplier and manufacturer of top-quality stainless steel products that prioritize strength, durability, and resistance to corrosion. One of their standout offerings is the **Duplex Steel Square Bar**, celebrated for its exceptional blend of mechanical strength and corrosion resistance. Crafted to meet international standards, these bars are ideal for use in demanding environments, and Sahil Metals proudly supplies them to various industries throughout Saudi Arabia and the GCC.
**Duplex Steel Square Bars** feature a well-balanced microstructure of austenite and ferrite, typically containing around 22–25% chromium, 4–7% nickel, and molybdenum. This unique dual-phase structure grants them high yield strength—nearly double that of standard austenitic stainless steels—along with outstanding resistance to stress corrosion cracking and enhanced toughness. Additionally, these square bars boast good weldability, formability, and resistance to pitting and crevice corrosion, making them perfect for chemically aggressive and high-pressure settings.
Standards : EN, DIN, JIS, ASTM, BS, ASME, AISI
Size : 10 mm To 100 mm Dia in
Length : 100 mm TO 6000 mm Length.
Specifications : ASTM A276, A479 / ASME SA276, SA479
Form : Square
Finish : Bright, Polish & Black
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 |
| S31803 / S32205 | Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
Duplex Steel Square Bars are generally not ideal for cryogenic applications. Their performance may deteriorate at extremely low temperatures, making materials like austenitic stainless steel more suitable for such conditions.
To choose the right Duplex Steel Square Bar, consider factors such as the required strength, corrosion resistance, temperature conditions, and industry-specific demands. Ensure compatibility with your application’s mechanical and environmental requirements.
Yes, Duplex Steel Square Bars require regular inspection, especially in harsh environments. Checking for signs of corrosion, wear, or structural integrity ensures they continue performing optimally in critical applications.
You’ll find **Duplex Steel Square Bars** commonly utilized in offshore platforms, marine components, heat exchangers, pressure vessels, chemical processing equipment, and structural applications that demand both strength and corrosion resistance. Their impressive mechanical properties and cost-effectiveness compared to high-nickel alloys make them a go-to choice for industries such as oil & gas, petrochemical, desalination, and pulp & paper. With their remarkable strength, versatility, and corrosion performance, duplex square bars are an excellent fit for critical engineering applications.
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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