Ladhani Metal Corporation offers SS 420 Half Round Tube Shields engineered to protect boiler tubes in power plants, waste heat recovery systems, HRSGs, and industrial steam boilers. Boiler tubes operate in extreme environments, continuously exposed to erosion, flue gas oxidation, and abrasive ash particles. Manufactured from martensitic stainless steel grade SS 420, these shields provide excellent hardness, high mechanical strength, and good oxidation resistance, making them ideal for high-temperature and erosive boiler applications. Function of Boiler Tubes • Carry water or steam through the heating sections of boilers • Exposed to erosion, oxidation, and soot blower impact during operation • Require Half Round Tube Shields in high-velocity flue gas and ash-laden zones Ladhani Metal Corporation manufactures, supplies, and exports SS 420 Half Round Tube Shields in multiple lengths, diameters, and thicknesses to serve domestic and international boiler industries. SS 420 Grade Chemical Composition – 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): 12.00 – 14.00% • Nickel (Ni): ≤ 0.75% • Iron (Fe): Balance Applications: Well-suited for reheater and superheater sections in thermal power plants, WHRBs, HRSGs, and process boilers requiring high hardness and resistance to oxidation and erosion. Uses • Protects boiler tubes from erosion caused by abrasive flue gases and ash • Shields tubes from soot blower erosion and high-temperature oxidation • Extends service life of superheater and reheater tube components • Applied in utility boilers, HRSGs, WHRBs, and process steam plants Features • High hardness and superior wear resistance • Strong oxidation resistance at elevated boiler temperatures • Good mechanical strength for long-term durability • Precision-engineered for accurate tube fitment and coverage Applications • Power generation boilers – Ensures protection of reheater and superheater tubes • Waste heat recovery boilers – Shields tubes from erosive gas streams • Industrial steam boilers – Reliable under high thermal and erosive cycles • Process boilers – Provides extended life in aggressive operating atmospheres Conclusion The SS 420 Half Round Tube Shield for Boiler Tubes by Ladhani Metal Corporation delivers robust protection in erosive and high-temperature boiler conditions. With high hardness, strong oxidation resistance, and precision design, these shields extend tube life and minimize maintenance costs. Available in a wide range of export-ready specifications, they are trusted for global boiler applications. For supply and technical inquiries, contact Ladhani Metal Corporation.
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