Operating from the heart of Kinshasa, Sadiki Metals is a trusted partner for industry across Congo, dedicated to delivering strength and reliability. We take pride in manufacturing and supplying high-performance Duplex Steel Rectangular Bars, engineered to meet the toughest challenges. Our commitment is to provide local businesses with superior materials that ensure longevity and cost-efficiency in demanding environments, supporting the growth and resilience of the regional industrial landscape with every bar we produce.
The exceptional quality of our Duplex Steel bars comes from a precise composition of chromium, nickel, molybdenum, and nitrogen. This balanced formula gives the material its distinctive two-phase microstructure, resulting in outstanding mechanical properties. These bars offer a remarkable combination of high tensile strength and excellent toughness, along with superior resistance to stress corrosion cracking, making them significantly stronger than standard stainless steels while maintaining good ductility.
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.
These rectangular bars are ideally suited for projects where both exceptional strength and corrosion resistance are non-negotiable. You will find them essential in the construction of chemical processing equipment, offshore and marine structures, and demanding oil and gas applications. They are also perfectly suited for components in pulp and paper manufacturing, as well as structural elements in harsh environments, providing a durable and long-lasting solution that stands up to aggressive chemicals and saline conditions.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Sadiki Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kinshasa, Congo
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