Hemi Metals, located in Hamilton, New Zealand, is a reliable supplier of Super Duplex Steel Flat Bars, celebrated for their remarkable strength, toughness, and resistance to corrosion. With a focus on high-performance metals, Hemi Metals guarantees that each flat bar adheres to rigorous quality standards, delivering dependable and long-lasting 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, customized solutions, and prompt delivery, Hemi Metals has established itself as a go-to partner for the offshore, chemical, and marine sectors both in New Zealand and beyond.
Super Duplex Steel Flat Bars are high-alloy duplex stainless steels that boast a well-balanced mix of chromium, nickel, molybdenum, and nitrogen. This unique composition grants them exceptional mechanical strength, impressive toughness, and outstanding resistance to pitting, crevice, and stress corrosion cracking, particularly in environments rich in chlorides and aggressive 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 high strength, corrosion resistance, and durability makes these flat bars perfect for critical, long-lasting industrial applications.
| 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 |
| Tensile Strength | 90,000 psi |
| Yield Strength | 50,000 psi |
| Elongation In 2” | 20% |
Reduction of Area | 30% |
Brlnell Hardness | 180-220 |
| 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 Flat Bars are highly recyclable. Due to their composition and durability, they can be reused in various industries without compromising their properties or performance.
Super Duplex Steel Flat Bars are generally not suitable for cryogenic applications due to their brittleness at extremely low temperatures. Materials like austenitic stainless steel are often preferred for such uses.
Yes, Super Duplex Steel Flat Bars are suitable for underground applications due to their excellent corrosion resistance, especially in harsh, corrosive environments such as soil or groundwater exposure.
Super Duplex Steel Flat Bars find extensive use in offshore, oil and gas, chemical processing, desalination, and marine industries. They are commonly utilized in structural components, pump and valve parts, heat exchangers, piping systems, pressure vessels, and the fabrication of corrosion-resistant equipment. Their exceptional mechanical strength and corrosion resistance make them ideal for high-stress and demanding applications where reliability, longevity, and safety 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.
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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