Super Duplex Steel Round Bars are in high demand due to their remarkable strength, outstanding resistance to corrosion, and durability in tough industrial settings. These bars are specifically designed to resist pitting, crevice corrosion, and stress corrosion cracking, particularly in environments rich in chlorides and marine conditions. Thanks to their impressive mechanical stability and toughness, Super Duplex Steel Round Bars are a go-to choice for applications that need both structural integrity and reliability. They are especially favored in the chemical, petrochemical, oil and gas, and marine industries for critical, high-performance tasks.
Made from a high-alloy duplex stainless steel, Super Duplex Steel Round Bars contain about 24–26% chromium, 6–8% nickel, and 3–4% molybdenum, along with nitrogen and trace elements. This well-balanced duplex microstructure delivers excellent mechanical properties, such as high tensile and yield strength, superior hardness, and remarkable impact resistance. The alloy also boasts exceptional resistance to corrosion caused by chlorides, acidic environments, and high temperatures. Together, these features ensure durability, a long service life, and dependable performance, even under extreme pressures and aggressive chemical conditions.
Specifications : ASTM A276, ASME SA276
Standard : ASTM, ASME
Size : 6 mm to 120 mm.
Length : 1 to 6 Meters, Custom Cut Lengths
Dimensions : EN, DIN, JIS, ASTM, BS, ASME, AISI
| Material | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| Super Duplex Steel | 0.030 max | 1.20 max | 0.80 max | 0.035 max | 0.020 max | 24.00 – 26.00 | 3.00 – 5.00 | 6.00 – 8.00 | 0.24 – 0.32 | 58.095 min |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
Yes, Super Duplex Steel Round Bars can withstand moderately high temperatures but are not ideal for prolonged use above 300°C, as this may reduce their corrosion resistance and mechanical properties.
Yes, Super Duplex Steel Round Bars are highly recyclable. Their materials, including chromium, nickel, and molybdenum, can be reused, promoting sustainability and reducing waste in industrial applications.
No, Super Duplex Steel Round Bars typically do not require additional corrosion protection coatings, as their high chromium, molybdenum, and nitrogen content provides excellent inherent corrosion resistance in harsh environments.
You’ll find Super Duplex Steel Round Bars used across various industries, including oil and gas, marine engineering, chemical processing, desalination, and offshore structures. They’re perfect for making shafts, fasteners, valves, pumps, fittings, heat exchanger components, and other structural elements that require both strength and corrosion resistance. In marine and offshore applications, they can handle constant exposure to seawater and harsh conditions. Plus, these round bars are utilized in high-pressure piping systems, subsea equipment, and specialized industrial machinery, providing exceptional stability and durability.
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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