Half Round Tube Shield Half Round Tube Shields by Ladhani Metal Corporation are precision-engineered components used to protect boiler and heat exchanger tubes from erosion, scaling, and high-temperature corrosion. These shields are widely applied in industrial systems exposed to thermal cycling, aggressive gases, and particulate flow. Their half-round shape allows for simple and secure installation over straight or curved tube surfaces, extending tube life and reducing maintenance needs. 1Cr18Ni9Ti U Type Half Round Tube Shield The 1Cr18Ni9Ti U Type Half Round Tube Shield is specifically designed for protection of U-bend tube sections in high-temperature heat exchangers, boilers, and superheaters. Manufactured from 1Cr18Ni9Ti, a titanium-stabilized austenitic stainless steel equivalent to AISI 321, this shield delivers excellent resistance to intergranular corrosion, high-temperature oxidation, and thermal fatigue. The titanium addition prevents chromium carbide precipitation during welding or long-term heat exposure, making it ideal for use in welded structures subjected to continuous heating cycles. • Outer U Type Half Round Tube Shield – Provides robust protection to the outer curve of U-bends against hot gas erosion, flame impingement, and scaling. • Inner U Type Half Round Tube Shield – Safeguards the inner arc of the bend from localized wear, slag buildup, and thermal degradation. Ladhani Metal Corporation manufactures and exports 1Cr18Ni9Ti U Type Half Round Tube Shields to industries requiring high-performance shielding in aggressive thermal and chemical service environments, particularly where welding is involved. Chemical Composition of 1Cr18Ni9Ti – Titanium-Stabilized Austenitic Stainless Steel • Carbon (C): ≤ 0.08% • Manganese (Mn): ≤ 2.00% • Phosphorus (P): ≤ 0.035% • Sulfur (S): ≤ 0.030% • Silicon (Si): ≤ 1.00% • Chromium (Cr): 17.0 – 19.0% • Nickel (Ni): 8.0 – 11.0% • Titanium (Ti): ≥ 5 × C content • Iron (Fe): Balance Applications: Suitable for high-temperature environments where welded tube systems are exposed to flue gases, thermal cycling, and corrosive atmospheres. Uses • Protection of U-bend tubes in reheaters and superheaters in thermal power plants • Shielding tube bends in waste heat recovery boilers and steam reformers • Coverage for curved tubes in high-temperature chemical process equipment • Guarding return bends in condensers and evaporators subject to scaling and oxidation • Ideal for systems requiring welded tube shields with resistance to intergranular corrosion Features • Titanium stabilization – Prevents sensitization and intergranular corrosion in welded or heat-affected zones, ensuring long-term structural reliability. • Excellent high-temperature resistance – Performs reliably under continuous thermal exposure, resisting scaling and surface degradation. • Complete bend protection – Available in both inner and outer U-type configurations for full shielding of curved tube areas. • Tight fit and customization – Manufactured to precise dimensions matching tube radius and diameter for secure, stable installation. • Easy to mount – Designed for hassle-free installation using clamps, tack welding, or banding without requiring tube removal. • Versatile performance – Suitable for oxidizing and mildly corrosive environments involving high heat and mechanical stress. Applications • thermal power stations – Protects U-bend tubes in critical heat transfer sections against heat-induced wear and gas corrosion. Enhances operational lifespan and safety. • petrochemical and refinery plants – Used in process heaters, reformers, and exchangers exposed to flue gases and thermal cycling. Maintains performance under continuous operation. • waste heat recovery systems – Shields curved tubes from erosion and scaling in gas recovery units and economizers. Improves durability in high-velocity environments. • chemical industries – Applied to tube bends in reactors, steam heaters, and evaporators where corrosion and temperature resistance are essential. • boiler systems and HRSGs – Provides reliable protection against fatigue, oxidation, and slag accumulation in high-temperature return bends. Conclusion The 1Cr18Ni9Ti U Type Half Round Tube Shield from Ladhani Metal Corporation is an advanced solution for protecting U-bend tube sections in thermally aggressive and welded environments. Its titanium-stabilized composition offers superior resistance to intergranular corrosion, oxidation, and thermal stress. Custom-engineered for precision fit and available in dual-sided configurations, this tube shield enhances system reliability and reduces maintenance needs in power, chemical, and industrial heating systems. For technical consultation, custom orders, or quotations, please contact Ladhani Metal Corporation.
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