Hemi Metals, located in Hamilton, New Zealand, is a reliable supplier of Super Duplex Steel Bars and Rods, celebrated for their remarkable strength, toughness, and resistance to corrosion. With a focus on high-performance metals, Hemi Metals guarantees that each bar and rod adheres to rigorous quality standards, delivering dependable and long-lasting solutions for challenging industrial applications. These bars and rods 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 Bars and Rods are high-alloy duplex stainless steels that boast a well-balanced mix of chromium, nickel, molybdenum, and nitrogen, providing impressive mechanical strength and outstanding corrosion resistance. This unique composition ensures excellent protection against pitting, crevice, and stress corrosion cracking, especially in environments rich in chlorides and harsh chemicals. On the mechanical side, they typically show tensile strength between 850–1000 MPa, yield strength of 550–750 MPa, and hardness around 280–320 HB. Their blend of toughness, durability, and corrosion resistance makes these bars and rods perfect for long-term industrial use.
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
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| S32750 | 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 |
| S32760 | 0.05 max | 1.00 max | 1.00 max | 0.030 max | 0.010 max | 24.00 – 26.00 | 3.00 – 4.00 | 6.00 – 8.00 | 0.20 – 0.30 | 57.61 min |
| Element | S32760 |
| 0.2% Proof Stress (N/mm2 ) [ksi] minimum | 550 [79.8] |
| Ultimate Tensile Strength (N/mm2) [ksi] minimum | 750 [108.8] |
| Elongation (%) minimum | 25 |
| Reduction of Cross Section Area (%) minimum | 45 |
| Hardness (HBN) | 270max |
| STANDARD | WERKSTOFF NR. | UNS |
| Super Duplex S32750/S32760 | 1.4410 | S32750 / S32760 |
Super Duplex Steel rods are generally resistant to galvanic corrosion due to their high chromium and molybdenum content. However, they can still be susceptible when coupled with highly dissimilar metals in certain environments.
Yes, Super Duplex Steel bars can be welded using appropriate techniques and filler materials. Careful control of heat input and post-weld heat treatment is essential to avoid degradation of their mechanical properties.
Super Duplex Steel rods are available in various sizes, ranging from small diameters to large rods, typically up to 300mm or more. Finishes can include hot-rolled, cold-drawn, polished, or ground, depending on the application requirements.
These Super Duplex Steel Bars and Rods find extensive application in offshore, oil and gas, chemical processing, desalination, and marine sectors. You’ll often see them in pumps, valves, shafts, heat exchangers, piping systems, structural components, and pressure vessels that face tough and corrosive conditions. Their exceptional mechanical strength and superior corrosion resistance make them ideal for critical 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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