Nestled in the bustling industrial heart of Addis Ababa, Tariku Metals has built its reputation on a foundation of reliability and deep local expertise. We take pride in being your trusted source for high-performance materials, specializing in the supply of Duplex Steel Hollow Bars. Our commitment is to support Ethiopia’s growing industries with products that meet rigorous international standards, ensuring your projects benefit from both superior quality and the convenience of a dependable local partner.
The strength of Duplex Steel lies in its unique composition, a balanced mixture of chromium, nickel, molybdenum, and nitrogen. This blend gives the hollow bar an exceptional combination of high tensile strength and outstanding resistance to corrosion, particularly against stress corrosion cracking. It effectively bridges the gap between common austenitic and ferritic steels, offering a material that is not only tough and durable but also remarkably versatile for demanding environments.
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 unique set of properties makes the Duplex Steel Hollow Bar ideal for a wide range of challenging applications. You will often find it forming the backbone of critical structures in offshore and marine environments, within chemical processing plants handling aggressive substances, and in the vast networks of oil and gas pipelines. Its hollow section is particularly advantageous for constructing high-pressure hydraulic cylinders, mechanical components, and architectural frameworks where strength, longevity, 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.
Tariku Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Addis Ababa, Ethiopia
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