For specifications,
custom sizes, or quotations, contact us at :
info@ladhanimetals.com or
visit www.ladhanimetal.com.
Introduction
Ladhani Metal Corporation is a leading manufacturer and exporter of boiler tube
shields engineered to deliver reliable protection in high-temperature boiler
environments. The Half Round Tube Shield for Reheater (R/H) Tube is
specifically designed for reheater sections of boilers, where extreme heat,
high-velocity flue gases, and particulate erosion accelerate tube wear. These
shields ensure long-lasting tube integrity, reduced maintenance downtime, and
improved operational efficiency in thermal power plants and industrial boilers.
What is a Half Round Tube Shield for Reheater (R/H) Tube?
A Half Round Tube Shield for Reheater (R/H) Tube is a semi-cylindrical
precision-formed protective cover tailored for reheater tubes in power boilers.
Reheater tubes operate at elevated temperatures, making them highly vulnerable
to wall thinning, slag deposition, and fly ash erosion. These shields are
manufactured to fit securely over the tube surface, acting as a sacrificial
barrier that absorbs damage and prevents direct exposure of the base tube
material to harsh conditions.
Purpose and Functionality
The main purpose of the Half Round Tube Shield for Reheater (R/H) Tube is to
protect reheater tubes from premature wear and rupture caused by erosion,
abrasion, and high-temperature corrosion. The shield reduces localized stress
and tube thinning, ensuring stable steam reheating operations. It is available
in weld-on and clip-on designs, allowing for easy installation and replacement
during planned shutdowns. By safeguarding critical tube sections, these shields
extend boiler service life and lower operational costs.
Key Features
· Designed for high-temperature reheater tube environments
· Provides protection against erosion, slagging, and corrosion
· Manufactured with precision forming to match tube diameters
· Available in high-alloy steels and stainless steels
· Offered in tack-welded or clip-on variants for flexible installation
· Easy to inspect, maintain, and replace
· Customizable in length, thickness, and material grade
Product Range
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Material Grades Offered by Ladhani Metal Corporation
Half Round Tube Shields for Reheater Tubes are manufactured from
high-temperature and corrosion-resistant stainless steels and alloys. Available
grades include:
· Stainless Steel 304 / 304L
· Stainless Steel 316 / 316L
· Stainless Steel 310 / 310S
· Stainless Steel 410 / 420 / 430
· Cr25Ni20
· 1Cr25Ni20Si2
· Cr23Ni13
· 1Cr20Ni14Si2
· Other special alloys available upon request
Chemical Composition of the Following Grades
1Cr18Ni9Ti
• Carbon (C): ≤ 0.12%
• Silicon (Si): ≤ 1.00%
• Manganese (Mn): ≤ 2.00%
• Phosphorus (P): ≤ 0.035%
• Sulfur (S): ≤ 0.030%
• Chromium (Cr): 17.0 – 19.0%
• Nickel (Ni): 8.0 – 11.0%
• Titanium (Ti): ≥ 5×C and ≤ 0.80%
• Iron (Fe): Balance
Cr25Ni20 (Similar to AISI 310)
• Carbon (C): ≤ 0.20%
• Silicon (Si): ≤ 1.50%
• Manganese (Mn): ≤ 2.00%
• Phosphorus (P): ≤ 0.035%
• Sulfur (S): ≤ 0.030%
• Chromium (Cr): 24.0 – 27.0%
• Nickel (Ni): 19.0 – 22.0%
• Iron (Fe): Balance
1Cr25Ni20Si2
• Carbon (C): ≤ 0.20%
• Silicon (Si): 1.00 – 2.50%
• Manganese (Mn): ≤ 1.50%
• Phosphorus (P): ≤ 0.035%
• Sulfur (S): ≤ 0.030%
• Chromium (Cr): 24.0 – 27.0%
• Nickel (Ni): 19.0 – 22.0%
• Iron (Fe): Balance
Cr23Ni13
• Carbon (C): ≤ 0.20%
• Silicon (Si): ≤ 1.50%
• Manganese (Mn): ≤ 2.00%
• Phosphorus (P): ≤ 0.035%
• Sulfur (S): ≤ 0.030%
• Chromium (Cr): 22.0 – 24.0%
• Nickel (Ni): 12.0 – 14.0%
• Iron (Fe): Balance
1Cr20Ni14Si2
• Carbon (C): ≤ 0.15%
• Silicon (Si): 1.00 – 2.50%
• Manganese (Mn): ≤ 1.50%
• Phosphorus (P): ≤ 0.035%
• Sulfur (S): ≤ 0.030%
• Chromium (Cr): 19.0 – 21.0%
• Nickel (Ni): 13.0 – 15.0%
• Iron (Fe): Balance
Stainless Steel 304 / 304L
• Carbon (C): ≤ 0.08% / ≤ 0.03%
• Silicon (Si): ≤ 1.00%
• Manganese (Mn): ≤ 2.00%
• Phosphorus (P): ≤ 0.045%
• Sulfur (S): ≤ 0.030%
• Chromium (Cr): 18.0 – 20.0%
• Nickel (Ni): 8.0 – 12.0%
• Iron (Fe): Balance
Stainless Steel 316 / 316L
• Carbon (C): ≤ 0.08% / ≤ 0.03%
• Silicon (Si): ≤ 1.00%
• Manganese (Mn): ≤ 2.00%
• Phosphorus (P): ≤ 0.045%
• Sulfur (S): ≤ 0.030%
• Chromium (Cr): 16.0 – 18.0%
• Nickel (Ni): 10.0 – 14.0%
• Molybdenum (Mo): 2.0 – 3.0%
• Iron (Fe): Balance
Stainless Steel 310 / 310S
• Carbon (C): ≤ 0.25% / ≤ 0.08%
• Silicon (Si): ≤ 1.50%
• Manganese (Mn): ≤ 2.00%
• Phosphorus (P): ≤ 0.045%
• Sulfur (S): ≤ 0.030%
• Chromium (Cr): 24.0 – 26.0%
• Nickel (Ni): 19.0 – 22.0%
• Iron (Fe): Balance
Stainless Steel 410
• Carbon (C): 0.08 – 0.15%
• Silicon (Si): ≤ 1.00%
• Manganese (Mn): ≤ 1.00%
• Phosphorus (P): ≤ 0.040%
• Sulfur (S): ≤ 0.030%
• Chromium (Cr): 11.5 – 13.5%
• Iron (Fe): Balance
Stainless Steel 420
• Carbon (C): 0.15 – 0.40%
• Silicon (Si): ≤ 1.00%
• Manganese (Mn): ≤ 1.00%
• Phosphorus (P): ≤ 0.040%
• Sulfur (S): ≤ 0.030%
• Chromium (Cr): 12.0 – 14.0%
• Iron (Fe): Balance
Stainless Steel 430
• Carbon (C): ≤ 0.12%
• Silicon (Si): ≤ 1.00%
• Manganese (Mn): ≤ 1.00%
• Phosphorus (P): ≤ 0.040%
• Sulfur (S): ≤ 0.030%
• Chromium (Cr): 16.0 – 18.0%
• Iron (Fe): Balance
Applications
Half Round Tube Shields for Reheater Tubes are widely used in high-temperature
boiler areas, including:
· Primary and secondary reheater tube banks
· Supercritical and subcritical boiler reheater sections
· High ash and slag-laden flue gas zones
· Steam generator reheater loops
· Waste heat recovery reheater sections
Manufacturing Capabilities
Ladhani Metal Corporation employs advanced CNC forming and rolling technology
to manufacture dimensionally accurate tube shields. Each product is tailored to
specific reheater tube sizes and bend radii, ensuring a secure fit and reliable
performance. All shields undergo stringent inspection and testing in accordance
with international standards.
Fixing and Installation Options
· Tack-welded for permanent installation
· Clip-on design for easy, non-welded fitment
· Extended and dual-coverage options for enhanced protection
Conclusion
Ladhani Metal Corporation is Manufacturer, Supplier and Exporter of Half Round Tube Shield for Reheater (R/H) Tube. With advanced materials, precise forming, and proven durability, our shields provide dependable protection for reheater sections in power generation and industrial boilers.
For specifications, custom sizes, or quotations, contact us at
info@ladhanimetals.com or visit www.ladhanimetal.com
Product Link :
 Tubes – Enhanced Boiler Tube Protection){kind=link}