Chung Metal, a leading metal supplier in Da Nang, Vietnam, has high-performance Super Duplex Steel Square Bars in its portfolio for highly corrosive and demanding environments. Because of the dual-phase austenitic-ferritic structure, these bars offer superior strength and durability. They are manufactured to cater to the stringent quality standards that guarantee excellent resistance to pitting, stress corrosion cracking, and chloride attacks. Critical applications in the marine, offshore, petrochemical, and energy sectors need Super Duplex Square Bars for enhanced reliability. Chung Metal ensures that the dimensional tolerances are accurate, and the mechanical performance is consistent to make these bars suitable for structural, mechanical, and high-pressure operational environments.
Super Duplex Steel Square Bars are made up of high chromium, nickel, molybdenum, and nitrogen, providing them excellent resistance to corrosion and oxidation. Mechanical properties such as tensile strengths from 800–1100 MPa are combined with excellent impact toughness. The dual-phase microstructure provides improvement in the areas of resistance to stress corrosion cracking and increases stability at high temperatures. These bars offer superior hardness, fatigue resistance, and long-term durability. Their chemical composition allows them to perform reliably in aggressive chloride-rich environments.
| 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.
Super Duplex Steel Square Bars have extensive applications in offshore platforms, subsea equipment, and marine components operating under seawater and challenging environmental conditions. Petrochemical and chemical industries employ them in reactors, valves, pumps, and high-pressure piping systems. Their strength makes them suitable for load-bearing structures, shafts, brackets, and structural frameworks. In power generation plants, these steels are used in heat exchangers and boilers. They also find excellent applications in desalination plants, wastewater systems, and industrial equipment that require corrosion resistance with high mechanical reliability.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Chung Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Da Nang, Vietnam
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