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Tanvir Nickel Alloys, based in Cairo, Egypt, stands out as a top manufacturer and supplier of high-quality Duplex Steel Bars. These bars are celebrated for their exceptional strength, durability, and resistance to corrosion. With a focus on duplex stainless steels, Tanvir ensures that their products meet rigorous international standards, guaranteeing dependable performance even in the toughest industrial settings. The Duplex Steel Bars crafted by Tanvir are specifically designed for applications that demand high mechanical strength and the ability to withstand harsh chemical and marine environments. Thanks to cutting-edge manufacturing processes and strict quality control measures, Tanvir provides bars that offer long-lasting, high-performance solutions for structural, piping, and mechanical systems across the chemical, oil and gas, and marine sectors.
These Duplex Steel Bars typically contain around 22% chromium, 5–6% nickel, 3% molybdenum, and the remainder is iron, with small amounts of nitrogen added to boost their mechanical strength and corrosion resistance. In terms of performance, these bars showcase impressive tensile and yield strength, outstanding toughness, and remarkable resistance to stress corrosion cracking, pitting, and crevice corrosion. Their unique duplex microstructure merges ferritic and austenitic characteristics, ensuring durability, stability, and reliable performance under high stress, temperature fluctuations, and aggressive industrial conditions, making them perfect for critical applications.
| Duplex Steel Bar Standard | ASTM A276, AMS 5513, AMS 5511, AMS 5647 |
|---|---|
| Duplex Steel Bar Dimensions | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Duplex Steel Round bar size | Diameter: 3-~800mm |
| Duplex Steel Hex Bar size | 2-100mm A/F |
| Duplex Stainless Steel Flat bar size | Thickness: 2 -100mm |
| Width: 10 to 500mm | |
| Duplex Steel Square bar size | 4 to 100mm |
| Duplex Steel Angle bar size | 3mm*20mm*20mm~12mm*100mm*100mm |
| Duplex Rectangular Bars Section | 3.0 to 12.0mm thickness |
| Duplex Steel Channel Bar | 80 x 40mm to 150 x 75mm section; 5.0 to 6.0mm thickness |
| ASTM A276 Type Hollow Bar | 32mm OD x 16mm ID to 250mm OD x 200mm ID) |
| Duplex Stainless Steel Threaded Bar Billet Size | 1/2 to 495mm Diameter |
| Duplex Steel Rectangular Size | 33 x 30mm to 295 x 1066mm |
| Duplex Hex Bars Finish | Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black |
| ASTM A276 Type Hollow Bar Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| SAF 2507 T-Bar Surface | Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline |
| Rolled Duplex Steel Flat Bars Condition | Hardened & tempered, annealed |
| ASTM A276 Type Cold Rolled Bar Technique | Duplex Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod |
| Duplex Rod Processing | Bar cutting to 650mm |
| Duplex Rounds Bar Form | Round, Rod, T-Bar, Channel Bar, Precision Ground Bar, Flat Bar, Square, Blocks, Round Rod, Rings, Hollow, Triangle, Rectangle, Hex (A/F), Threaded, Half Round Bar, Profiles, Billet, Ingot, I/H Bar, Forging etc. |
| Grade | UNS No | C % | Cr % | Ni % | P % | Si % | S % | Mo % | N % | Mn % |
| S31803 | S31803 | < 0.03 | 21.0-23.0 | 4.5-6.5 | 1.03 max | 1 max | 0.02 max | 2.5-3.5 | 0.08-0.2 | < 2.0 |
| 2205 | S32205 | < 0.03 | 22.0-23.0 | 4.5-6.5 | 0.03 max | 1 max | 0.02 max | 3.0-3.5 | 0.14-0.20 | < 2.0 |
| Grade | YS (MPa) | UTS (MPa) | % Elongation | Hardness(BHN) |
| S31803 | 450 min. | 620 min. | 25 min. | 293 max. |
| 2205 | 450 min. | 655 min. | 25 min. | 293 max. |
At Tanvir Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel Bars in Cairo, Egypt, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Egypt, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
Duplex Steel Bars find extensive use in chemical processing, petrochemical, oil and gas, marine industries, and industrial fabrication, thanks to their remarkable corrosion resistance and mechanical strength. They are particularly well-suited for creating shafts, valves, fasteners, structural components, and piping systems that are exposed to chloride-laden or corrosive environments. These bars help minimize maintenance requirements, boost operational safety, and guarantee long-term reliability in challenging conditions. Their strength, durability, and ability to resist harsh environments make them the go-to choice for high-performance applications that demand long-lasting, corrosion-resistant solutions.