Located in the industrious heart of Hamilton, New Zealand, Hemi Metals has built a reputation for supplying materials of unwavering strength and reliability. Our focus on Duplex Steel Bars and Rods is a perfect example of this commitment, offering a superior solution for projects that demand exceptional resilience. We understand the unique challenges faced by local industry, and it’s our goal to provide not just a product, but a dependable foundation for the robust infrastructure and innovation that our community is known for.
The strength of Duplex Steel lies in its unique composition, a balanced mix of chromium, nickel, molybdenum, and nitrogen. This blend gives these bars and rods an excellent combination of high tensile strength and impressive resistance to corrosion, particularly against stress corrosion cracking. They effectively bridge the gap between the properties of common austenitic and ferritic steels, resulting in a material that is not only tougher but also offers significant weight and cost advantages in many demanding applications.
| Grade | C | Mn | S | Cr | P | Si | Fe | Mo | Ni | N |
|---|---|---|---|---|---|---|---|---|---|---|
| S31803 | 0.030 | 2.00 | 0.020 | 22.0 – 23.0 | 0.030 | 1.00 | 63.72 min | 3.0 – 3.5 | 6.50 | 0.20 |
| S32205 | 2.50 – 3.50 | 0.8 |
| Grade | Hardness | Tensile Strength | Melting Point | Yield Strength | Density | Elongation |
|---|---|---|---|---|---|---|
| S31803 | 255 | 800 Mpa | 1350 °C (2460 °F) | 450 Mpa | 7.8 g/cm3 | 35 |
| S32205 |
| EN/ DIN/ WNR | 10088-3 |
|---|---|
| AFNOR | Z2CND22.05Az |
| BS (CAST) | 332C15 |
| UNS |
|
| WNR | 1.4462 |
| BS (WROUGHT) | 318S13 |
Yes, Duplex Steel Bars offer excellent corrosion resistance, particularly against stress corrosion cracking, pitting, and crevice corrosion. Their dual-phase microstructure enhances their resistance in harsh environments.
Duplex steel bars perform well in high-temperature environments due to their excellent strength and resistance to oxidation and scaling. Their dual-phase microstructure enhances thermal stability and durability under heat stress.
Yes, duplex steel rods can be customized in size and length to meet specific application requirements. They can be tailored to various dimensions and tolerances for different industries.
You’ll find Duplex Steel Bars and Rods hard at work in some of the most challenging environments. They are essential in the offshore and marine sectors for structures and components constantly battling saltwater corrosion. The chemical processing and oil and gas industries rely on them for piping systems and pressure vessels. Furthermore, their strength and durability make them an excellent choice for structural components in bridges, and even for critical parts in desalination plants where resistance to chloride-induced corrosion is absolutely 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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