Semih Metals, based in Istanbul, Turkey, stands out as a top manufacturer and supplier of high-quality metal products, including Duplex Steel Bright Bars. With a strong focus on precision, quality, and customer satisfaction, Semih Metals delivers duplex stainless steel bars that are perfect for demanding applications in industries like oil & gas, marine, chemical, and construction. These Duplex Steel Bright Bars are celebrated for their smooth surface finish, impressive strength, and outstanding resistance to corrosion. Produced to strict tolerances and international standards, they are ideal for machining and fabrication. Semih Metals guarantees timely delivery and consistent quality for clients around the globe.
These Duplex Steel Bright Bars are crafted from duplex stainless steel grades such as UNS S31803 and S32205, which feature a well-balanced austenitic-ferritic microstructure. Their chemical makeup includes about 22% chromium (Cr), 5–6% nickel (Ni), 3% molybdenum (Mo), and nitrogen (N), giving them exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking. With high tensile strength (typically ranging from 620 to 850 MPa), excellent toughness, and good fatigue resistance, these bars are built to last. The “bright” finish is achieved through precise cold drawing or polishing, which enhances both dimensional accuracy and surface quality. These characteristics make Duplex Bright Bars perfect for environments that demand high strength and corrosion resistance.
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 : Bright
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 % |
Yes, Duplex Steel Bright Bars are suitable for natural gas applications due to their excellent corrosion resistance, high strength, and durability, making them ideal for pipelines and gas processing systems.
Yes, Duplex Steel Bright Bars are suitable for hygienic and sanitary applications due to their corrosion resistance, cleanability, and ability to withstand harsh environments, making them ideal for food and pharmaceutical industries.
Duplex Steel Bright Bars find their place in various applications that require robust mechanical strength, a fine surface finish, and durability in harsh conditions. They are commonly used in pump shafts, fasteners, heat exchangers, valve components, and structural parts for offshore platforms, desalination systems, chemical plants, and marine hardware. Their exceptional corrosion resistance in chloride-rich environments makes them particularly well-suited for coastal and submerged applications.
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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