Al Summan Metals, a highly regarded manufacturer and supplier based in Dubai, UAE, has built its reputation by supplying premium Duplex Steel Hollow Bars designed to meet the requirements of modern engineering industries. With the help of advanced manufacturing technology and a firm commitment to precision, Al Summan Metals ensures that each product complies with international quality standards. The company serves a wide variety of industries, such as oil and gas, petrochemical, marine, and construction. Known for their dependability, corrosion resistance, and strength, Al Summan Metals is committed to building trust by supplying long-lasting Duplex Steel Hollow Bars that perform exceptionally in demanding industrial settings.
Duplex Steel Hollow Bars are composed mainly of roughly 22–25% chromium, 4–7% nickel, and 2–3% molybdenum, while nitrogen enhances both their strength and their corrosion resistance. With a balanced microstructure combining austenite and ferrite, they deliver notable mechanical qualities such as high tensile strength (620–880 MPa) and solid yield strength (450–550 MPa). Because they resist stress corrosion cracking, pitting, and crevice corrosion so well, they are ideally suited to demanding and corrosive 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 are recyclable once they have been used. Because of their high metal content, they can be repurposed across a range of industrial applications, supporting sustainability and efficient use of resources.
Yes, Duplex Steel Hollow Bars work well for cryogenic applications thanks to their outstanding toughness, strength, and ability to resist brittle fracture at exceptionally low temperatures.
Duplex Steel Hollow Bars can indeed be used for underground applications thanks to their strong corrosion resistance, strength, and durability, holding up well even in tough and moisture-prone conditions.
Duplex Steel Hollow Bars are widely applied across industries demanding both high strength and resistance to corrosion. They are especially well-suited for manufacturing parts used in oil and gas pipelines, chemical processing equipment, heat exchangers, pressure vessels, and marine settings. Their combination of durability, weldability, and exceptional resistance to chloride-driven corrosion makes them perfect for offshore platforms and desalination facilities. On top of that, they serve pulp and paper, food processing, and architectural work where both function and aesthetics matter. Al Summan Metals’ Duplex Steel Hollow Bars deliver dependability and long service life in critical engineering applications.
We supply products accompanied by both mill test certificates and third-party test certificates, guaranteeing the highest standards of quality and compliance.
Al Summan Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Dubai, UAE
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