Al Summan Metals, based in Dubai, UAE, distinguishes itself as a leading manufacturer and supplier of high-quality stainless steel products, placing special emphasis on Duplex Steel Flat Bars. Drawing on deep expertise in precision engineering and durable metal solutions, Al Summan Metals caters to a wide range of industries requiring materials that withstand corrosion and provide superior strength. Duplex Steel Flat Bars distinctively combine the benefits of ferritic and austenitic stainless steels, offering outstanding toughness, strength, and resistance to pitting and stress corrosion. Devoted to quality and timely delivery, Al Summan Metals guarantees reliable steel solutions that meet international standards, serving fields such as oil and gas, chemical processing, marine, and construction across UAE and beyond.
These Duplex Steel Flat Bars consist of roughly 22% chromium, 5% nickel, and 3% molybdenum, together with minor quantities of nitrogen, manganese, and silicon. This particular makeup achieves an ideal equilibrium between resistance to corrosion and mechanical strength. They demonstrate a yield strength spanning 450 to 550 MPa and a tensile strength ranging from 620 to 850 MPa, with hardness values sitting between 280 and 330 HB. The microstructure, comprising almost equal proportions of austenite and ferrite, provides outstanding toughness, fatigue resistance, and dimensional stability, rendering these bars ideal for challenging industrial applications.
| Size | : | 10 mm To 100 mm Dia in 100 mm TO 6000 mm Length. |
| Standard | : | ASTM A276, A479 / ASME SA276, SA479, ASTM A789 / A789M & ASTM A928 / A928M |
| Grade | : | UNS NO. S 31803, S 32205, S 32550, S 32750, S 32760. |
| Finish | : | Bright, Polish & Black |
| End | : | Flat |
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 |
| Grade | Density | Melting point | Yield strength(0.2% offset) | Tensile strength | Elongation |
|---|---|---|---|---|---|
| S32750/S32760 | 7.8g/cm3 | 1350°C(2460°F) | PSi-80000, MPa-550 | PSi-116000, MPa-800 | 15% |
To keep Duplex Steel Flat Bars in good condition, clean them regularly to clear away debris, check for signs of corrosion, and apply protective coatings when needed. Make sure they are stored correctly to avoid contact with aggressive chemicals or extreme conditions.
Duplex Steel Flat Bars are indeed well-suited for natural gas applications thanks to their outstanding corrosion resistance and strength, which makes them perfect for pipelines and equipment subjected to natural gas environments.
Duplex Steel Flat Bars exhibit partial magnetism owing to their ferritic phase. Although they are less magnetic than pure ferritic steels, they can display certain magnetic characteristics, particularly under specific conditions.
Duplex Steel Flat Bars are well-suited to sectors that demand both robust strength and resistance to corrosion. They frequently appear in uses such as chemical processing equipment, heat exchangers, pressure vessels, and structural parts within marine and offshore environments. Additionally, they serve in oil and gas pipelines, desalination facilities, pulp and paper production, and building projects exposed to demanding conditions. Their blend of remarkable mechanical strength and defense against stress corrosion cracking delivers lasting durability, dependability, and reduced maintenance expenses, positioning Duplex Steel Flat Bars as a preferred option for essential engineering applications.
We provide products supplied with 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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