Half Round Tube Shield Half Round Tube Shields by Ladhani Metal Corporation are specially engineered to protect boiler, superheater, and heat exchanger tubes from surface wear, high-temperature scaling, flue gas erosion, and slag buildup. These shields are widely used in thermal power plants, waste heat recovery systems, and high-temperature industrial processes. Designed in a half-round profile, they ensure secure and easy installation over curved or straight tubes, extending tube service life and reducing maintenance interruptions. Cr23Ni13 U Type Outer Half Round Tube Shield The Cr23Ni13 U Type Outer Half Round Tube Shield is manufactured from a high-alloy austenitic stainless steel containing approximately 23% chromium and 13% nickel. This alloy provides superior resistance to oxidation, high-temperature corrosion, and thermal fatigue. The outer U-type shield is designed to protect the external curvature of U-bend tubes, which are often exposed to the harshest operating conditions—such as direct flame impingement, slag attack, and aggressive flue gas streams. • Outer U Type Half Round Tube Shield – Offers targeted protection for the outer arc of U-bend tubes, shielding against intense heat, slag erosion, and high-velocity gas flow. Ladhani Metal Corporation is a trusted manufacturer, supplier, and exporter of Cr23Ni13 U Type Outer Half Round Tube Shields, offering durable, high-performance solutions for critical thermal and chemical environments. Chemical Composition of Cr23Ni13 – High-Alloy Austenitic Stainless Steel • Carbon (C): ≤ 0.08% • Manganese (Mn): ≤ 1.50% • Phosphorus (P): ≤ 0.040% • Sulfur (S): ≤ 0.030% • Silicon (Si): ≤ 1.50% • Chromium (Cr): 22.0 – 24.0% • Nickel (Ni): 12.0 – 14.0% • Iron (Fe): Balance Applications: Ideal for high-temperature, oxidizing, and corrosive environments requiring strong thermal stability, scale resistance, and long-term tube protection. Uses • Shielding U-bend outer arcs in superheaters and reheaters exposed to direct flame and thermal cycling • Protection of return bends in waste heat recovery boilers (WHRBs) and heat recovery steam generators (HRSGs) • Coverage for high-temperature bends in petrochemical process heaters and cracking units • Applied in radiant coils and furnace tubes operating under oxidizing and high-velocity gas environments • Suitable for metallurgical, cement, and gas processing industries with extreme thermal conditions Features • Excellent oxidation and corrosion resistance – High chromium and nickel content ensures scale resistance in aggressive atmospheres • High thermal stability – Performs reliably at temperatures exceeding 1100°C, with resistance to thermal fatigue and distortion • Outer bend protection – Specifically guards the most vulnerable surface of the U-bend against slag and flame exposure • Custom fitment – Manufactured to match precise tube diameters and bend radii for tight, stable installation • Easy to install – Mountable with clamps, tack welds, or stainless bands without system disassembly • Long service life – Reduces frequency of tube replacement, enhancing system reliability and uptime Applications • thermal power plants – Used on outer arcs of U-bend tubes in boilers and superheaters to protect against slag and oxidation • petrochemical plants – Shields return bends in high-temperature heaters exposed to process gas erosion and carburization • waste heat recovery – Protects bends in WHRBs and HRSGs subjected to hot gas streams and temperature fluctuations • industrial furnaces – Installed in radiant sections and high-temperature piping in incinerators and process furnaces • cement and metallurgy industries – Applied to bends exposed to flame, dust, and thermal cycling under extreme heat Conclusion The Cr23Ni13 U Type Outer Half Round Tube Shield by Ladhani Metal Corporation—manufacturer, supplier, and exporter—is a robust, heat-resistant solution for protecting the outer curvature of U-bend tubes in aggressive thermal environments. With high oxidation resistance, thermal stability, and long-term structural durability, this shield is ideal for demanding applications in power, chemical, and industrial sectors where performance and reliability are critical. For technical consultation, custom orders, or quotations, please contact Ladhani Metal Corporation.
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