Starc Metals stands out as a top-notch manufacturer and supplier of Super Duplex Steel Round Bars, proudly based in Canberra, Australia. Known for our commitment to quality, precision, and reliability, we deliver premium stainless steel products that meet international standards and cater to our customers’ needs. Our Super Duplex Steel Round Bars are renowned for their remarkable strength, corrosion resistance, and durability, especially in harsh environments. With cutting-edge manufacturing capabilities and rigorous quality control, Starc Metals supports vital industries like oil and gas, marine, chemical processing, and power generation, offering high-performance solutions that prioritize safety, efficiency, and longevity in challenging applications.
These Super Duplex Steel Round Bars are made up of about 25% chromium, 7% nickel, 4% molybdenum, and nitrogen, resulting in a well-balanced duplex microstructure of ferrite and austenite. This unique composition provides outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking, particularly in chloride-rich and tough environments. Their mechanical properties boast a tensile strength of 800–950 MPa, a yield strength of around 550 MPa, and a density of 7.8 g/cm³. Additionally, these bars offer high toughness, excellent weldability, and stability under extreme temperature and pressure conditions, making them perfect for demanding industrial applications.
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.
Super Duplex Steel Round Bars find extensive use in industries that require both high strength and exceptional corrosion resistance. In the oil and gas sector, they are essential for pipelines, subsea equipment, and pressure vessels. The marine industry utilizes them in shipbuilding, offshore structures, and desalination plants, thanks to their impressive resistance to seawater corrosion. Chemical and petrochemical sectors rely on them for reactors, heat exchangers, and storage tanks. Moreover, they are also used in power generation, pulp and paper, and various industrial machinery applications. At Starc Metals, we ensure that our Super Duplex Steel Round Bars are precision-engineered to meet the highest standards.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Starc Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Canberra, Australia
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