Semih Metals stands out as a top-notch manufacturer and supplier located in Istanbul, Turkey, celebrated for providing high-quality metal products to customers around the globe. With years of experience under their belt and a strong dedication to excellence, Semih Metals focuses on crafting Duplex Steel Square Bars, known for their remarkable strength, resistance to corrosion, and long-lasting durability. The company caters to a diverse array of industries, including oil and gas, marine, construction, and chemical processing. By utilizing cutting-edge technology and rigorous quality controls, Semih Metals guarantees that each Duplex Steel Square Bar meets international standards, making it a reliable choice for challenging engineering and structural projects.
Typically, Duplex Steel Square Bars have a well-balanced mix of chromium (21–23%), nickel (4.5–6.5%), molybdenum (2.5–3.5%), along with manganese, silicon, nitrogen, and iron. This unique dual-phase microstructure combines the advantages of both austenitic and ferritic stainless steels, providing excellent strength and outstanding resistance to corrosion, especially against stress corrosion cracking and pitting. The mechanical properties are impressive, featuring a high yield strength (usually around 450–550 MPa), tensile strength that surpasses 700 MPa, and good elongation (up to 25%). Additionally, the steel maintains excellent toughness and hardness, even in low temperatures, making it ideal for tough environments.
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.
Typically, Duplex Steel Square Bars have a well-balanced mix of chromium (21–23%), nickel (4.5–6.5%), molybdenum (2.5–3.5%), along with manganese, silicon, nitrogen, and iron. This unique dual-phase microstructure combines the advantages of both austenitic and ferritic stainless steels, providing excellent strength and outstanding resistance to corrosion, especially against stress corrosion cracking and pitting. The mechanical properties are impressive, featuring a high yield strength (usually around 450–550 MPa), tensile strength that surpasses 700 MPa, and good elongation (up to 25%). Additionally, the steel maintains excellent toughness and hardness, even in low temperatures, making it ideal for tough environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Semih Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Istanbul, Turkey
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