Aung Metals, a well-respected manufacturer and supplier located in Naypyidaw, Myanmar, has made a name for itself by providing top-notch Duplex Steel Hollow Bars tailored to the demands of today’s engineering industries. Thanks to cutting-edge production technology and a strong focus on precision, Aung Metals guarantees that every product meets international quality standards. The company caters to a diverse range of sectors, including oil and gas, petrochemical, marine, and construction. Renowned for their reliability, corrosion resistance, and strength, Aung Metals is dedicated to earning trust by delivering durable Duplex Steel Hollow Bars that excel in challenging industrial environments.
These Duplex Steel Hollow Bars are primarily made up of about 22–25% chromium, 4–7% nickel, and 2–3% molybdenum, with nitrogen boosting their strength and resistance to corrosion. They feature a well-balanced microstructure of austenite and ferrite, which gives them impressive mechanical properties like high tensile strength (620–880 MPa) and good yield strength (450–550 MPa). Their exceptional resistance to stress corrosion cracking, pitting, and crevice corrosion makes them perfect for harsh and corrosive settings.
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.
Duplex Steel Hollow Bars find extensive use in industries that require high strength and corrosion resistance. They are particularly suited for creating components in oil and gas pipelines, chemical processing equipment, heat exchangers, pressure vessels, and marine applications. Their blend of durability, weldability, and outstanding resistance to chloride-induced corrosion makes them ideal for offshore platforms and desalination plants. Additionally, they are utilized in pulp and paper, food processing, and architectural projects where both performance and visual appeal are crucial. Aung Metals’ Duplex Steel Hollow Bars promise reliability and longevity in essential engineering tasks.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Aung Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Naypyidaw, Myanmar
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