Half Round Tube Shield Half Round Tube Shields by Ladhani Metal Corporation are specially designed to protect boiler, superheater, and heat exchanger tubes from erosion, scaling, and thermal damage in high-temperature environments. These shields are essential in applications where tube surfaces are exposed to abrasive flue gases, slag buildup, and turbulent flow conditions. Their half-round design allows secure placement over straight or curved tube sections, offering durable protection and prolonging service life without requiring major system modifications. SS 420 U Type Inner Half Round Tube Shield The SS 420 U Type Inner Half Round Tube Shield is manufactured from martensitic stainless steel grade 420, known for its high surface hardness, excellent wear resistance, and fair corrosion resistance. This grade is ideal for applications where mechanical erosion is a concern. The inner U-type configuration is engineered to protect the internal curvature of U-bend tubes, which are commonly affected by localized turbulence, scale accumulation, and repeated thermal cycling. • Inner U Type Half Round Tube Shield – Specifically designed to guard the internal arc of U-bend tubes from erosion, slag impact, and high-temperature scaling. Ladhani Metal Corporation is a trusted manufacturer, supplier, and exporter of SS 420 U Type Inner Half Round Tube Shields, offering durable and cost-effective protective components for demanding industrial environments. Chemical Composition of SS 420 – Martensitic Stainless Steel • Carbon (C): 0.15 – 0.40% • Manganese (Mn): ≤ 1.00% • Phosphorus (P): ≤ 0.040% • Sulfur (S): ≤ 0.030% • Silicon (Si): ≤ 1.00% • Chromium (Cr): 12.0 – 14.0% • Iron (Fe): Balance Applications: Ideal for systems where tubes are exposed to abrasive gases, slag, and scaling, especially where high surface hardness and moderate corrosion resistance are required. Uses • Installed on the inner arc of U-bend tubes in high-temperature boiler and superheater sections • Shields return bends in WHRBs, HRSGs, and industrial furnace coils exposed to abrasive or turbulent flow • Applied in curved tube sections of heat exchangers and reformers subject to slag and scale deposits • Used in chemical and petrochemical units handling combustion gases and steam • Effective in power and process plants where mechanical wear and erosion resistance are crucial Features • High wear resistance – Excellent surface hardness provides long-lasting protection in abrasive environments • Inner arc coverage – Shields areas prone to turbulence, scale buildup, and gas erosion • Thermal durability – Performs reliably in elevated temperature service conditions up to 650°C • Custom design – Tailored to match the exact tube bend radius and diameter for optimal protection • Simple installation – Compatible with clamp-on, weld-on, or banding methods for secure fitment • Economical solution – Combines durability and affordability for routine and critical tube protection needs Applications • thermal power plants – Protects inner surfaces of U-bends in superheaters and economizers from erosion • petrochemical processing – Shields tube bends exposed to acidic and particulate-laden gases • waste heat recovery units – Guards against scale and slag accumulation in WHRB and HRSG return bends • chemical industries – Provides erosion resistance in heat exchanger bends carrying corrosive vapors • furnaces and process heaters – Used on return coil sections exposed to direct flame or hot gases Conclusion The SS 420 U Type Inner Half Round Tube Shield by Ladhani Metal Corporation – manufacturer, supplier, and exporter – offers robust inner arc protection for U-bend tubes in high-wear and high-temperature applications. Its excellent hardness and mechanical resilience make it well-suited for thermal systems facing abrasive and corrosive environments. For technical assistance, customization, or quotations, please contact Ladhani Metal Corporation.
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