Hemi Metals, located in Hamilton, New Zealand, is a reliable supplier of Super Duplex Steel Round Bars, celebrated for their remarkable strength, toughness, and resistance to corrosion. With a focus on high-performance metals, Hemi Metals guarantees that each round bar adheres to rigorous quality standards, delivering dependable and durable solutions for challenging industrial applications. These bars are perfect for manufacturers, engineers, and fabricators who need materials that can endure harsh chemical, thermal, and mechanical conditions. Thanks to their technical support, tailored solutions, and prompt delivery, Hemi Metals has established itself as a go-to partner for the offshore, chemical, and marine industries both in New Zealand and beyond.
Super Duplex Steel Round Bars are high-alloy duplex stainless steels that boast a well-balanced mix of chromium, nickel, molybdenum, and nitrogen. This unique composition grants them outstanding mechanical strength, excellent toughness, and remarkable resistance to pitting, crevice, and stress corrosion cracking, especially in environments rich in chlorides and harsh chemicals. Typical mechanical properties include a tensile strength ranging from 850 to 1000 MPa, yield strength between 550 and 750 MPa, and a hardness of about 280 to 320 HB. Their blend of strength, corrosion resistance, and durability makes these round bars perfect for critical and long-lasting industrial applications.
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 Round Bars can withstand moderately high temperatures but are not ideal for prolonged use above 300°C, as this may reduce their corrosion resistance and mechanical properties.
Yes, Super Duplex Steel Round Bars are highly recyclable. Their materials, including chromium, nickel, and molybdenum, can be reused, promoting sustainability and reducing waste in industrial applications.
No, Super Duplex Steel Round Bars typically do not require additional corrosion protection coatings, as their high chromium, molybdenum, and nitrogen content provides excellent inherent corrosion resistance in harsh environments.
Super Duplex Steel Round Bars find extensive use in offshore, oil and gas, chemical processing, desalination, and marine sectors. They are commonly utilized in shafts, pump and valve components, structural parts, heat exchangers, piping systems, and pressure vessels that are exposed to tough and corrosive environments. Their exceptional mechanical strength and corrosion resistance make them ideal for high-stress and critical applications where reliability, durability, and long-term performance are essential.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Hemi Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Hamilton New Zealand
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