Based in the heart of Hamilton, Hemi Metals is a trusted name for specialised materials, bringing a practical, local approach to a global industry. We understand that quality isn’t just about the product itself, but about reliable supply and expert support. Our Duplex Steel Rectangular Bar exemplifies this commitment, offering a robust and cost-effective solution for engineers and fabricators who face demanding conditions and require a material that won’t let them down.
The strength of Duplex Steel comes from its unique two-phase microstructure, blending austenitic and ferritic steels. This gives the rectangular bar an excellent combination of high strength and impressive toughness. It also boasts outstanding resistance to corrosion, particularly from stress corrosion cracking, making it far more durable than standard stainless steels in many aggressive environments. This allows for lighter, stronger designs without compromising on longevity or performance.
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 % |
Duplex Steel Rectangular Bars can withstand moderate to high temperatures, but their performance may degrade at temperatures above 300°C (572°F). For extreme heat, other alloys like austenitic stainless steel are preferred.
Yes, Duplex Steel Rectangular Bar are highly recyclable. Their durable composition allows them to be melted down and repurposed in various applications without significant loss of material properties.
Duplex Steel Rectangular Bars have excellent natural corrosion resistance due to their alloy composition. However, in highly aggressive environments, additional coatings or treatments may be recommended for enhanced protection.
You’ll find our Duplex Steel Rectangular Bar hard at work in some of the most challenging settings. It’s a cornerstone material for the offshore oil and gas industry, used in structural components and fasteners that must withstand corrosive seawater. It’s also essential in chemical processing plants, pulp and paper production, and for structural elements in bridges and buildings located in coastal areas. Its versatility makes it a go-to choice for any project where exceptional strength and corrosion resistance are non-negotiable.
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
Copyright 2024 Hemi Metals. All rights reserved
