Starc Metals is a well-respected manufacturer and supplier of Super Duplex Steel Square Bars, based in Canberra, Australia. Known for our commitment to quality and performance, we offer precision-engineered stainless steel products that adhere to international standards. Our Super Duplex Steel Square Bars are prized for their outstanding strength, resistance to corrosion, and durability, even in tough environments. By utilizing cutting-edge manufacturing technology and rigorous quality control, Starc Metals serves various industries, including oil and gas, marine, petrochemical, and power generation. We are dedicated to providing reliable, high-performance solutions for critical industrial applications both in Australia and around the globe.
Super Duplex Steel Square Bars are primarily made up of chromium (about 25%), nickel (7%), molybdenum (4%), and nitrogen, which together create a blend of the best characteristics of ferritic and austenitic stainless steels. This unique mix significantly boosts resistance to pitting, crevice corrosion, and chloride stress corrosion cracking. The material boasts a tensile strength of roughly 800–950 MPa, a yield strength of around 550 MPa, and a density of 7.8 g/cm³. Super Duplex Steel also retains excellent impact toughness, weldability, and structural integrity, even in extreme conditions and high-pressure settings.
| Standard | : | ASTM / ASME SA 276 / A 479 |
| Grade | : | UNS S 32750, S 32760 , S 32950 |
| Range | : | 10 mm To 100 mm Dia in 100 mm TO 6000 mm Length. |
| Finish | : | Bright Black Polish |
| Form | : | Rectangle |
| 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 % |
To maintain Super Duplex Steel Square Bars, clean them regularly to remove contaminants, avoid exposure to extreme temperatures for prolonged periods, and inspect for signs of corrosion or damage in harsh environments.
Yes, Super Duplex Steel Square Bars can be welded using techniques like TIG or MIG welding. Proper preheating and post-weld heat treatment are essential to maintain their corrosion resistance and mechanical properties.
Yes, Super Duplex Steel Square Bars are suitable for natural gas applications due to their excellent resistance to corrosion, high strength, and ability to withstand harsh environments commonly found in the natural gas industry.
These Super Duplex Steel Square Bars find extensive applications in industries that require exceptional corrosion resistance and mechanical strength. In the oil and gas sector, they are perfect for subsea equipment, offshore platforms, and pressure vessels. The marine industry relies on them for shipbuilding and desalination plants, thanks to their impressive performance in seawater. In chemical and petrochemical processing, they are utilized in reactors, heat exchangers, and storage tanks. Additionally, these bars are used in power generation, as well as in the paper and pulp industries. At Starc Metals, we guarantee precise, high-quality Super Duplex Steel products that deliver reliable and long-lasting performance.






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
Copyright 2024 Starc Metals. All rights reserved