Half Round Tube Shield Half Round Tube Shields by Ladhani Metal Corporation are engineered to protect the surfaces of boiler tubes, superheaters, and heat exchanger coils from high-temperature corrosion, erosion, slag deposition, and scaling. Widely used in power generation, petrochemical, and industrial processing systems, these shields are fabricated with a half-round profile that allows quick installation over curved or straight tube surfaces, extending service life and minimizing repair and replacement needs. Cr23Ni13 U Type Inner Half Round Tube Shield The Cr23Ni13 U Type Inner Half Round Tube Shield is manufactured from a chromium-nickel austenitic alloy known for its excellent high-temperature resistance, structural stability, and corrosion resistance. It performs reliably under continuous thermal exposure and is well-suited for systems exposed to oxidizing, carburizing, and sulfur-rich gases. The inner U-type configuration is designed specifically to shield the inner arc of U-bend tubes, which are more susceptible to localized turbulence, thermal fatigue, and scale formation. • Inner U Type Half Round Tube Shield – Covers the internal curvature of U-bend tubes, providing targeted protection from flue gas erosion, thermal scaling, and corrosion. Ladhani Metal Corporation is a leading manufacturer, supplier, and exporter of Cr23Ni13 U Type Inner Half Round Tube Shields, offering precision-engineered solutions for high-performance thermal and chemical systems. Chemical Composition of Cr23Ni13 – Austenitic Heat-Resistant Steel • Carbon (C): ≤ 0.12% • Manganese (Mn): ≤ 1.50% • Phosphorus (P): ≤ 0.035% • Sulfur (S): ≤ 0.030% • Silicon (Si): ≤ 1.50% • Chromium (Cr): 22.0 – 24.0% • Nickel (Ni): 12.0 – 14.0% • Iron (Fe): Balance Applications: Suitable for continuous exposure to high temperatures in oxidizing and chemically aggressive environments. Ideal for inner bend protection in return coil systems subjected to high thermal load and corrosive gas flow. Uses • Protects inner arcs of U-bend tubes in thermal power plant superheaters, reheaters, and economizers • Installed in WHRBs and HRSGs to resist scale and slag in return bends exposed to flue gas turbulence • Applied in steam reformers, process furnaces, and heat exchangers where inner tube surfaces face corrosive and hot gas impact • Used in chemical reactors and cracking units operating under cyclic thermal and chemical stress • Suitable for long-term protection of curved tubes in industrial combustion and heating equipment Features • High-temperature oxidation resistance – Performs in continuous service above 1000°C • Inner arc shielding – Targets protection for the most erosion-prone and heat-stressed tube area • Corrosion resistance – Withstands exposure to sulfur-rich gases, acidic vapors, and flue gas byproducts • Fabricated to specification – Available in custom sizes and bend radii for a precise fit and stable coverage • Simple installation – Can be secured using clamping, banding, or welding without disrupting the system • Extended service life – Reduces risk of tube failure, minimizes maintenance downtime, and improves system efficiency Applications • thermal and power generation – Protects inner U-bend surfaces from corrosion and erosion in steam circuits • petrochemical processing – Shields return bends in reformers and exchangers from hot process gases • waste heat recovery – Used in curved tubes of WHRBs and HRSGs for inner arc scale protection • chemical industry – Applied in reactors and thermal systems subjected to chemical vapors and high heat • furnace and incineration systems – Effective in resisting slag and gas-induced wear in industrial burners Conclusion The Cr23Ni13 U Type Inner Half Round Tube Shield by Ladhani Metal Corporation – manufacturer, supplier, and exporter – offers dependable inner arc protection for U-bend tubes operating in aggressive thermal and chemical environments. Its high-temperature and corrosion-resistant properties make it ideal for safeguarding critical process tubes across a range of high-performance industrial systems. For technical consultation, customized fabrication, or quotations, please contact Ladhani Metal Corporation.
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