Chuck Metals stands out as a trusted manufacturer and supplier of Duplex Steel Hex Bars in Singapore, delivering precision-engineered solutions to various industries across Pulau Ujong and beyond. These hexagonal bars are prized for their impressive strength, outstanding corrosion resistance, and precise dimensions, making them perfect for high-performance components in challenging environments. Crafted in accordance with international standards like ASTM A276 and ASTM A479, our duplex steel hex bars come in a diverse range of sizes and finishes, suitable for both structural and machined applications.
Typically, Duplex Steel Hex Bars are composed of 22–25% chromium, 4.5–6.5% nickel, 2.5–3.5% molybdenum, and nitrogen, which gives them a unique dual-phase ferritic-austenitic structure. They boast tensile strength ranging from 620–900 MPa and yield strength between 450–620 MPa, along with remarkable resistance to chloride stress corrosion cracking, pitting, and crevice corrosion. Their robust mechanical properties and corrosion resistance make them a reliable choice for heavy-duty applications.
Standards : EN, DIN, JIS, ASTM, BS, ASME, AISI
Size : 10 mm To 100 mm Dia in
Length : 100 mm TO 6000 mm Length.
Specifications : ASTM A276, A479 / ASME SA276, SA479
Form : Rectangular
Finish : Bright, Polish & Black
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
S32205 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 21.0 – 23.0 | 2.50 – 3.50 | 4.50 – 6.50 | 0.8 – 0.20 | 63.54 min |
| S31803 / S32205 | Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
Yes, Duplex Steel Hex Bars are fully recyclable. They can be melted down and reused without losing their essential properties, making them an environmentally sustainable option for various applications.
Duplex Steel Hex Bars have inherent corrosion resistance due to their composition. However, in highly aggressive environments, additional coatings or treatments may be necessary to enhance their longevity and performance.
To choose the right Duplex Steel Hex Bar, consider factors such as mechanical strength, corrosion resistance, temperature conditions, and compatibility with your application’s specific industry standards and environmental factors.
These bars find extensive use in industries such as marine, oil and gas, chemical processing, paper and pulp, and desalination. Common applications include fasteners, valve stems, pump shafts, nuts and bolts, and machined components where a blend of high strength, tight dimensional tolerances, and corrosion resistance is crucial. The hexagonal shape also facilitates easy handling and wrenching, making duplex steel hex bars a favored option for precision mechanical assemblies.
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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