U Type Inner Half Round Tube Shield
Half Round Tube Shield
Half Round Tube Shields by Ladhani Metal Corporation are essential components used to protect heat exchanger tubes, boiler coils, and superheater assemblies from erosion, scaling, slag buildup, and high-temperature corrosion. Designed with a semi-cylindrical profile, they offer easy installation over straight or curved tube surfaces. These shields play a vital role in increasing service life, reducing tube maintenance, and ensuring the efficient operation of thermal systems across power generation, chemical processing, and petrochemical industries.
1Cr25Ni20Si2 U Type Inner Half Round Tube Shield
The 1Cr25Ni20Si2 U Type Inner Half Round Tube Shield is fabricated from a high-temperature resistant chromium-nickel-silicon alloy steel. This grade offers excellent resistance to oxidation, sulfur corrosion, and thermal fatigue, even under prolonged exposure to temperatures above 1000°C. The inner U-type configuration is specifically designed to shield the internal curvature of U-bend tubes, a zone vulnerable to accelerated wear caused by flue gas turbulence, slag impact, and thermal cycling.
• Inner U Type Half Round Tube Shield – Designed to cover the inside arc of U-bend tubes, offering protection from erosion, scale formation, and heat stress.
Ladhani Metal Corporation is a reliable manufacturer, supplier, and exporter of 1Cr25Ni20Si2 U Type Inner Half Round Tube Shields, providing high-performance protective solutions for extreme temperature and chemically aggressive environments.
Chemical Composition of 1Cr25Ni20Si2 – High Temperature Alloy Steel
• Carbon (C): ≤ 0.20%
• Manganese (Mn): ≤ 1.50%
• Phosphorus (P): ≤ 0.035%
• Sulfur (S): ≤ 0.030%
• Silicon (Si): 1.80 – 2.50%
• Chromium (Cr): 24.0 – 26.0%
• Nickel (Ni): 19.0 – 22.0%
• Iron (Fe): Balance
Applications: Suited for high-temperature environments with oxidizing, sulfurizing, or carburizing gases. Especially effective in boiler, furnace, and WHRB systems operating under cyclic thermal conditions.
Uses
• Installed on the inner arc of U-bend tubes in power plant boilers and superheaters exposed to slag and thermal stress
• Protects curved tube bends in WHRBs, HRSGs, and reformers subjected to flue gas erosion and oxidation
• Applied in heat exchangers and reactors operating in high-temperature and chemically active atmospheres
• Used in furnace coils, metallurgical plants, and incinerators for protection from sulfur-laden and high-heat gas streams
• Suitable for curved tube coils in petrochemical and process industries where scaling and corrosion are common
Features
• Excellent oxidation resistance – Performs effectively at continuous service temperatures up to 1100°C
• Superior inner arc protection – Covers high-wear zones exposed to heat, slag, and turbulent gas flow
• Enhanced thermal fatigue resistance – Designed for use in cyclic heating environments without distortion
• Corrosion resistance – Withstands acid gases and sulfur-rich flue gases common in industrial combustion systems
• Precision fitment – Fabricated to match specific tube sizes and bend radii for optimal protection and stability
• Easy installation – Can be fixed using clamping, tack welding, or banding methods depending on system design
Applications
• power generation – Shields inner U-bend tubes in superheaters and reheaters from high-temperature erosion
• waste heat recovery – Used in WHRBs and HRSGs to protect internal arcs against scaling and oxidation
• petrochemical processing – Protects U-bend tubes in reformers and exchangers exposed to acidic gas streams
• chemical industry – Ensures long-lasting performance in reactors and thermal processing equipment
• metallurgical and furnace systems – Applied where high heat and slag exposure are routine
Conclusion
The 1Cr25Ni20Si2 U Type Inner Half Round Tube Shield by Ladhani Metal Corporation – manufacturer, supplier, and exporter – provides high-strength, heat-resistant shielding for the internal arcs of U-bend tubes operating in severe industrial environments. Its resistance to oxidation, corrosion, and thermal fatigue makes it a dependable solution for extending equipment life and performance under extreme conditions.
For custom sizes, technical support, or pricing inquiries, please contact Ladhani Metal Corporation.
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