Duplex Round Bars
As a top manufacturer and supplier of duplex steel round bars, Kalpataru Piping Solutions is known for its high strength, durability against corrosion, and mechanical properties. Global demands are taken into account throughout the construction of our duplex bars, ensuring superior reliability and quality. Being active in the industry for several decades, we conduct rigorous inspections before distributing the final item. We offer Duplex Steel Round Bars in a variety of qualities and dimensions to meet our consumer’s distinctive needs.
Our team of experts may assist if you’re looking for exceptional Duplex Steel Round Bars. We assure timely delivery and offer reasonable rates. Get additional details regarding our Duplex Steel Round Bars or to request quotations, connect with us right away.
Grades of Duplex Round Bars
Specification of Duplex Round Bars
| Standard | ASTM A276, ASME SA276 |
| Dimension | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Round Bars | Outside Diameter in the range of 4mm to 500mm |
| Bright Bars | Outside Diameter in the range of 4mm to 100mm |
| Hex Bars | 18mm – 57mm (11/16″ to 2-3/4″) |
| Square Bars | 18mm – 47mm (11/16″ to 1-3/4″) |
| Flat Bars | 1/2” to 10” in thickness range of 2mm to 150mm, |
| Size | 6 mm to 120 mm. |
| Diameter | 6mm to 350mm Diameter |
| Length | 1 to 6 Meters, Custom Cut Lengths |
| Finish | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
| Form | Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc |
| Tolerance | +/-0.2mm |
Equivalent Grade of Duplex Steel Round Bars
| Duplex Steel Round Bar Grade | Equivalent Grade | Microstructure | Key Properties | International Standards |
| Duplex 2205 | UNS S32205 / UNS S31803 | Dual-phase (Austenitic & Ferritic) | Excellent strength and corrosion resistance | EN 10088-3 (1.4462) |
| Duplex 2507 | UNS S32750 / UNS S32760 | Dual-phase (Austenitic & Ferritic) | High strength, excellent pitting & crevice corrosion resistance | EN 10088-3 (1.4410) |
| Duplex 2304 | UNS S32304 | Dual-phase (Austenitic & Ferritic) | Cost-effective, good corrosion resistance, good weldability | EN 10088-3 (1.4362) |
Chemical Composition of Duplex Round Bars
| Element | Percentage Range | Function/Effect |
| Iron (Fe) | Balance | Primary base element |
| Chromium (Cr) | 21% to 23% | Enhances corrosion resistance, especially in harsh environments |
| Nickel (Ni) | 4.5% to 6.5% | Contributes to high strength and ductility |
| Molybdenum (Mo) | 2.5% to 3.5% | Improves corrosion resistance, especially against chloride-induced pitting and crevice corrosion |
| Nitrogen (N) | 0.08% to 0.20% | Stabilizes the austenitic phase and enhances mechanical properties |
| Manganese (Mn) | Controlled | Improves toughness and reduces susceptibility to cracking |
| Silicon (Si) | Controlled | Enhances oxidation resistance and improves strength |
| Carbon (C) | Controlled | Regulates hardness and strength but kept low to avoid brittleness |
FAQ
What is a Duplex Bar?
Joiners who construct windows are the main consumers of duplex bars. Jewelry making is placed at the highest of any extra spacer bars within the double-glazed piece when it is in the structure. It delivers the look of multiple parts inside the framework.
Related Products
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- Duplex Steel UNS S31803 Fasteners
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- Duplex UNS S32205 Plates and Duplex UNS S32205 Sheets
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- Duplex UNS S31803 Wiremesh
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Inconel 625 Forged Fittings Exporter | Countries and Cities We Supply To
Kalpataru Piping Solutions exports Inconel 625 forged fittings and nickel alloy 625 forgings to over 40 countries worldwide. Our major export destinations include: United States (Houston, Los Angeles, New York), United Kingdom (London, Aberdeen), UAE (Dubai, Abu Dhabi, Sharjah), Saudi Arabia (Dammam, Riyadh, Jubail), Canada (Calgary, Edmonton), Australia (Perth, Brisbane), Germany (Hamburg, Dusseldorf), Netherlands (Rotterdam, Amsterdam), Singapore, Malaysia (Kuala Lumpur), South Korea (Busan, Seoul), Brazil (Rio de Janeiro, Sao Paulo), South Africa (Johannesburg, Durban), Italy (Genoa, Milan), France (Paris, Marseille), Norway (Stavanger, Bergen), and all GCC and Southeast Asian markets.
FAQs - ASTM A53 Grade B Pipe
What is Nickel 200 seamless pipe used for?
Nickel 200 seamless pipe is used wherever maximum corrosion resistance and purity are needed, including oil & gas drilling, chemical processing, food-grade equipment, and marine piping systems.
What is the difference between Nickel 200 and Nickel 201 pipe?
Nickel 200 has a higher carbon content suited to general service below 315°C, while Nickel 201 has low carbon content designed for high-temperature applications above 315°C, avoiding embrittlement issues.
What size range do you supply for Nickel 200 seamless pipes and tubes?
Kalpataru Piping supplies Nickel 200 pipes and tubes in sizes from 4 mm to 219 mm, with wall thickness from 0.5 mm to 20 mm, and lengths up to 13,500 mm, fully customisable to your project.
Do you provide mill test certificates with every order?
Yes, every consignment of Nickel 200 seamless pipe is supplied with EN 10204 3.1 or 3.2 mill test certificates, and third-party inspection can be arranged on request.
Is Nickel 200 pipe suitable for high-temperature applications?
Nickel 200 performs well up to around 315°C (600°F). For higher-temperature service, we recommend Nickel 201, which has a low-carbon composition designed to resist embrittlement at elevated temperatures.
Can Kalpataru Piping supply custom Nickel 200 pipe sizes and forms?
Yes, we manufacture custom sizes, thicknesses, and forms including round, square, rectangular, and hydraulic tube, tailored precisely to your project drawing or specification.
Do you export Nickel 200 seamless pipes and tubes internationally?
Yes, Kalpataru Piping exports Nickel 200 seamless pipes and tubes to over 40 countries worldwide, with complete documentation, secure packing, and reliable shipping support.
