Phehlukwayo Metal, located in Cape Town, South Africa, has earned a solid reputation as a reliable manufacturer and supplier of top-notch metal products, including their high-quality Duplex Steel Rectangular Bars. With a keen emphasis on quality, innovation, and ensuring customer satisfaction, this company serves industries that require materials that are both durable and resistant to corrosion. By blending technical know-how with cutting-edge manufacturing techniques, Phehlukwayo Metal delivers products that align with international standards. Their Duplex Steel Rectangular Bars are specifically crafted for tough environments and come with dependable service and competitive pricing, making them a go-to choice for clients in the marine, construction, and chemical processing fields.
These Duplex Steel Rectangular Bars feature a unique dual-phase microstructure of austenite and ferrite, typically containing around 22–25% chromium, along with nickel, molybdenum, and nitrogen. This special composition provides exceptional resistance to stress corrosion cracking, pitting, and crevice corrosion. On the mechanical side, Duplex steel boasts a higher yield strength compared to standard austenitic stainless steels, while also offering good toughness and weldability. It shines in situations where both strength and corrosion resistance are essential. These bars maintain their structural integrity even under high mechanical stress, ensuring long-lasting durability, which makes them perfect for a variety of heavy-duty and corrosive applications.
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 : Rectangular
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 Rectangular Bars can withstand moderate to high temperatures, but their performance may degrade at temperatures above 300°C (572°F). For extreme heat, other alloys like austenitic stainless steel are preferred.
Yes, Duplex Steel Rectangular Bar are highly recyclable. Their durable composition allows them to be melted down and repurposed in various applications without significant loss of material properties.
Duplex Steel Rectangular Bars have excellent natural corrosion resistance due to their alloy composition. However, in highly aggressive environments, additional coatings or treatments may be recommended for enhanced protection.
Duplex Steel Rectangular Bars find extensive use in scenarios where strength and corrosion resistance are paramount. In the marine sector, they are utilized in components for boats, offshore platforms, and seawater systems. In the chemical and petrochemical industries, you’ll find them in storage tanks, pressure vessels, and heat exchangers, thanks to their ability to withstand aggressive chemicals. The construction industry also relies on them for structural frameworks, bridges, and support beams that face harsh conditions. With their remarkable mechanical strength and corrosion resistance, Duplex Steel Rectangular Bars provide a long-lasting solution for demanding applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Phehlukwayo Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Cape Town, South Africa
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