Chuck Metals stands out as a trusted manufacturer and supplier of Super Duplex Steel Square Bars in Singapore, meeting the varied demands of industries throughout Pulau Ujong and Southeast Asia. Our Super Duplex square bars are designed to deliver remarkable strength, corrosion resistance, and durability, even in the toughest environments. Crafted to meet international standards like ASTM A276 and A479, these square bars are precision-engineered for structural, mechanical, and machining applications. With a commitment to consistent quality, tight dimensional tolerances, and a superb surface finish, Chuck Metals offers reliable solutions for marine, offshore, petrochemical, and industrial sectors that require high-performance materials.
Super Duplex Steel Square Bars are typically produced from grades such as UNS S32750, S32760, and Zeron 100, showcasing a dual-phase microstructure of austenite and ferrite. Their usual composition includes around 25% chromium, 7% nickel, and 3–4% molybdenum, along with nitrogen, and in some cases, copper or tungsten. These bars boast impressive mechanical properties, featuring a tensile strength ranging from 750 to 930 MPa, a yield strength of at least 550 MPa, and excellent impact toughness. They are highly resistant to pitting, crevice corrosion, and chloride stress corrosion cracking, making them perfect for both structural load-bearing and corrosive service 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 find extensive use in high-stress, corrosion-sensitive applications. In the offshore and marine industries, they are utilized for fasteners, support frames, shafts, and subsea equipment. In the chemical and petrochemical sectors, they play a crucial role in structural frameworks, pump components, and process systems that encounter aggressive chemicals. Desalination plants and power generation facilities rely on these bars for durable, corrosion-resistant structural parts. Thanks to their excellent machinability and high strength-to-weight ratio, they are also ideal for fabrication, construction, and heavy-duty industrial applications, where material performance and longevity are paramount.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Chuck Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Singapore, Singapore
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