Chuck Metals stands out as a dependable manufacturer and supplier of Super Duplex Steel Hollow Bars right here in Singapore, serving a diverse array of industries across Pulau Ujong and Southeast Asia. These Super Duplex hollow bars are celebrated for their remarkable strength, outstanding corrosion resistance, and their versatility in being machined into various components like bushings, rings, flanges, and valve bodies. At Chuck Metals, we pride ourselves on delivering precision-engineered hollow bars that meet international standards such as ASTM A790 and A276. With a commitment to consistent quality, tight tolerances, and a superb surface finish, our hollow bars are the go-to choice in demanding sectors like oil & gas, chemical processing, desalination, and marine engineering.
When it comes to manufacturing Super Duplex Steel Hollow Bars, we utilize high-performance grades like UNS S32750, S32760, and Zeron 100. These bars boast a chemical composition of around 25% chromium, 7% nickel, 3–4% molybdenum, and nitrogen, often enhanced with elements like tungsten or copper. They deliver impressive tensile strength ranging from 750 to 930 MPa, yield strength of at least 550 MPa, and exceptional impact toughness, even in low temperatures. Thanks to their dual-phase (austenite–ferrite) microstructure, they exhibit excellent resistance to pitting, crevice corrosion, and chloride-induced stress corrosion cracking, making them perfect for challenging environments.
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 Hollow Bars can withstand high temperatures due to their excellent strength and corrosion resistance. They are suitable for applications in environments up to around 300°C (572°F), depending on the specific alloy.
Super Duplex Steel Hollow Bars and Rods are manufactured through hot or cold working processes, including extrusion and forging, followed by heat treatment, cold drawing, and precision machining for enhanced strength and corrosion resistance.
Super Duplex Steel Hollow Bars have excellent natural corrosion resistance due to their high chromium and molybdenum content, making additional protective coatings generally unnecessary. However, in highly aggressive environments, coatings may offer extra protection.
Super Duplex Steel Hollow Bars find their place in high-performance applications where both strength and corrosion resistance are paramount. In the oil and gas sector, they are essential for crafting pressure-retaining parts, connectors, and downhole tools. In marine and offshore systems, they shine as ideal materials for pump casings, risers, and structural supports that face the harshness of seawater. Chemical processing plants depend on them for flanges, valve bodies, and other corrosion-resistant components. Additionally, they play a crucial role in desalination plants, pulp and paper mills, and power generation, where durability, high pressure tolerance, and resistance to aggressive fluids are vital.
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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