Half Round Tube Shield Half Round Tube Shields by Ladhani Metal Corporation are precision-formed protective components used to guard boiler tubes, heat exchangers, and superheaters against flue gas erosion, fly ash abrasion, scaling, and thermal fatigue. These shields are widely used in power generation, chemical processing, and industrial steam systems to extend the operational life of tubing in high-wear zones. The half-round profile ensures easy fitment over straight or curved tubes, especially in areas exposed to turbulent gas flow and ash impact. 1Cr18Ni9Ti Half Round Tube Shield for LTSH Tube The 1Cr18Ni9Ti Half Round Tube Shield is manufactured from a titanium-stabilized austenitic stainless steel grade, equivalent to AISI 321. This material offers excellent resistance to intergranular corrosion and high-temperature oxidation while maintaining good mechanical strength. Its titanium content improves stability during welding and long-term thermal exposure, making it especially suitable for Low Temperature Superheater (LTSH) applications in boilers and heat recovery systems where steam tubes are subject to moderate heat, soot, and particulate attack. The Low Temperature Superheater (LTSH) is a section in a boiler where saturated steam from the steam drum is superheated to a moderately higher temperature before entering the high-temperature superheater stages. Positioned in areas with relatively lower flue gas temperatures, the LTSH helps improve thermal efficiency and reduces moisture content in steam. Due to constant exposure to abrasive flue gases and ash, LTSH tubes are prone to wear and require protective shielding, such as half round tube shields, to extend service life. Ladhani Metal Corporation is a trusted manufacturer, supplier, and exporter of 1Cr18Ni9Ti Half Round Tube Shields for LTSH systems, offering reliable and corrosion-resistant protection for thermal and energy-related applications. 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% • Iron (Fe): Balance Applications: Ideal for LTSH areas and convection zones in boilers exposed to flue gas condensation, moderate corrosion, and thermal fatigue from cyclic operations. Uses • Installed on LTSH tubes to protect from scaling, soot erosion, and ash deposition in thermal power plants • Shields superheater coils and heat exchanger bends in WHRBs and HRSGs • Suitable for industrial boilers in chemical plants where acidic or chloride-bearing gases are present • Used in biomass and coal-fired systems to reduce wear on tube surfaces from fly ash and gas turbulence • Effective in marine and coastal steam generation systems with moisture and chloride exposure Features • Excellent intergranular corrosion resistance – Stabilized with titanium for weld integrity and long-term stability • High-temperature oxidation resistance – Performs well under cyclic heat exposure and oxidizing gas conditions • Custom fit – Manufactured to match exact tube diameter, curvature, and installation length • Easy to mount – Suitable for welding, clamping, or banding installation methods • Enhanced tube life – Reduces maintenance frequency and increases system efficiency • Available in various thicknesses, lengths, and bend radii as per operational needs Applications • thermal power stations – Protects LTSH tubes from scaling and ash erosion in flue gas zones • waste heat recovery units – Shields return tube bends and convection coils from abrasive flow • steam generation systems – Enhances tube life in low-temperature superheater environments • refinery boilers – Resists acidic gas effects and thermal stress in process heating units • utility boilers – Used in coal-fired and biomass-fired systems requiring long-term tube protection Conclusion The 1Cr18Ni9Ti Half Round Tube Shield for LTSH Tube by Ladhani Metal Corporation – manufacturer, supplier, and exporter – offers high-performance protection for boiler and superheater tubes in low-temperature, corrosive, and abrasive environments. With titanium stabilization and excellent thermal durability, it ensures extended service life and improved system reliability in a range of industrial and thermal applications. For customized designs, technical consultation, or pricing details, please contact Ladhani Metal Corporation.
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