Al Summan Metals, a well-regarded manufacturer and supplier based in Dubai, UAE, focuses entirely on producing high-quality Duplex Steel Square Bars. These bars are known for their impressive strength, corrosion resistance, and lasting durability. Through the use of advanced manufacturing techniques and stringent quality inspections, Al Summan Metals ensures that every Duplex Steel Square Bar not only complies with international standards but also delivers dependable performance in demanding industrial and marine environments. These square bars skillfully merge the benefits of austenitic and ferritic stainless steels, offering exceptional toughness, resistance to stress corrosion, and superb weldability. Al Summan Metals supplies precision-engineered duplex steel solutions ideally suited for chemical, petrochemical, marine, and offshore uses where high performance and durability are essential.
When it comes to composition, Duplex Steel Square Bars generally consist of roughly 22% chromium, 5–6% nickel, 3% molybdenum, and a blend of iron, together with minor quantities of nitrogen and additional alloying elements. This distinctive combination delivers remarkable mechanical strength, toughness, and outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking. From a mechanical standpoint, these bars feature a tensile strength spanning 700 to 900 MPa, yield strength ranging from 450 to 550 MPa, and an elongation of 25 to 30%. They likewise demonstrate excellent ductility, fatigue resistance, and weldability, which makes them well suited for demanding industrial and structural applications.
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 :Square
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 Square Bars are typically unsuitable for cryogenic applications. At extremely low temperatures their performance can degrade, which makes materials such as austenitic stainless steel a better fit for these conditions.
When selecting the appropriate Duplex Steel Square Bar, take into account elements like the strength you need, resistance to corrosion, temperature conditions, and requirements particular to your industry. Verify that it matches your application's mechanical and environmental needs.
Yes, Duplex Steel Square Bars need routine inspection, particularly in demanding conditions. Examining them for indications of corrosion, deterioration, or structural soundness guarantees they keep functioning at their best in critical applications.
Duplex Steel Square Bars are a preferred option across the chemical, petrochemical, marine, and offshore industries, owing to their exceptional resistance to corrosion, high strength, and long-lasting durability. They are commonly used in applications such as pump shafts, valves, fasteners, heat exchangers, pressure vessels, and structural parts exposed to severe and corrosive environments. They are also employed in seawater systems, oil and gas platforms, and industrial machinery where both mechanical strength and corrosion resistance are critical. With Duplex Steel Square Bars, you can rely on dependable long-term performance and structural integrity.
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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