Welcome to Nimish Metal, the trusted name for industrial supplies in Safat, Kuwait. We are a premier manufacturer and supplier, proudly introducing our high-performance Duplex Steel Hollow Bars. Engineered for those moments when good isn’t good enough, these bars represent the pinnacle of strength and resistance, designed to excel in the most demanding environments.
The composition of these hollow bars is a super-duplex blend primarily containing chromium, nickel, molybdenum, and nitrogen. This creates a robust material with exceptional mechanical properties, including remarkably high tensile strength and excellent toughness. They exhibit superior resistance to both corrosion and abrasion, ensuring a long, reliable service life even under significant stress.
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 : Hollow
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 % |
Yes, Duplex Steel Hollow Bars can be recycled after use. Their high metal content makes them suitable for reuse in various industrial processes, promoting sustainability and resource efficiency.
Yes, Duplex Steel Hollow Bars are suitable for cryogenic applications due to their excellent toughness, strength, and resistance to brittle fracture at extremely low temperatures.
Yes, Duplex Steel Hollow Bars can be used for underground applications due to their high corrosion resistance, strength, and durability, even in harsh and moisture-prone environments.
This strength makes our Duplex Steel Hollow Bars the preferred choice for constructing everything from chemical processing equipment and industrial machinery to high-performance marine components. Think of hydraulic cylinders, load-bearing frames, and pipelines that must withstand corrosive atmospheres. They are the unseen backbone of industries where failure is not an option.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Nimish Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Safat, Kuwait
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