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Ladhani Metal Corporation offers Stainless Steel Half Round Tube Shields designed to protect boiler tubes from erosion, corrosion, oxidation, and mechanical wear in power plants, refinery heaters, waste heat recovery boilers (WHRBs), and heat recovery steam generators (HRSGs). These shields are semi-cylindrical tube covers fitted over vulnerable sections of boiler tubes to prevent premature thinning caused by high-velocity flue gases, abrasive ash particles, and soot blower impact. By acting as a sacrificial protective layer, Stainless Steel Half Round Tube Shields significantly extend tube service life and improve boiler reliability.
Function of Tube Shields
• Protect boiler tubes from erosion, corrosion, and scaling
• Reduce tube wear in high-temperature and high-flow zones
• Minimize shutdowns and maintenance costs
• Extend overall efficiency and durability of the boiler system
Ladhani Metal Corporation manufactures, supplies, and exports Stainless Steel Half Round Tube Shields in a wide range of standard and custom specifications to meet domestic and international project requirements.
Available Grades
• SS 304 / SS 304L
• SS 310 / SS 310S
• SS 316 / SS 316L
• SS 410 / SS 420 / SS 430
• 1Cr13
• 1Cr18Ni9Ti
• 1Cr20Ni14Si2
• 1Cr25Ni20Si2
• Cr23Ni13
• Cr25Ni20
Applications: Extensively used in thermal power plants, waste heat recovery units, refinery heaters, petrochemical furnaces, HRSGs, and industrial boilers operating in erosive and corrosive environments.
Uses
• Protects boiler tubes against flue gas erosion and oxidation
• Shields reheater and superheater tubes in high-temperature zones
• Guards economizer and LTSH sections from ash erosion
• Extends operational life in refinery and process heaters
Features
• Excellent corrosion and oxidation resistance at elevated temperatures
• High mechanical strength and durability under cyclic heating
• Precision-engineered for accurate fit over tube diameter
• Easy installation, removal, and replacement during maintenance
Applications
• Power generation boilers – Tube protection in superheaters and reheaters
• HRSGs – Reliable under frequent thermal cycling
• Waste heat recovery boilers – Protection against abrasive and corrosive flue gases
• Refinery and petrochemical heaters – Enhanced durability in aggressive atmospheres
Conclusion
Stainless Steel Half Round Tube Shields for Boilers from Ladhani Metal Corporation are engineered to provide superior protection against erosion, corrosion, and oxidation in demanding boiler environments. Manufactured in stainless steels and heat-resistant alloys, these shields ensure long service life, reduced downtime, and export-ready quality for global energy and industrial applications.
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DIN 2634 carbon steel flanges PN 25 are high-strength weld neck flanges manufactured according to the DIN 2634 standard. Specifically designed for use in high-pressure piping systems operating up to 25 bar (362 psi), these flanges offer excellent mechanical performance and are suitable for a wide range of industrial applications. Manufactured from quality carbon steel, they provide strong, durable, and cost-effective solutions for systems where corrosion resistance requirements are moderate but structural integrity is critical.
Ladhani Metal Corporation is a recognized manufacturer and global supplier of carbon steel flanges, known for precision engineering, strict adherence to international standards, and advanced production capabilities. Each flange is subject to comprehensive testing and inspection to ensure reliability and consistent performance under demanding operating conditions.
Pressure Rating:
• PN 25 (25 bar / 362 psi): Suitable for medium to high-pressure applications where strength and impact resistance are essential.
Flange Type:
• Weld Neck Flanges
Designed with a tapered hub to ensure smooth transition from flange to pipe, weld neck flanges are ideal for systems experiencing frequent thermal cycling, pressure fluctuations, and mechanical stress.
• Flat Face (FF) Flanges
Recommended for use with gaskets made from soft materials or when connecting to cast iron components, flat face flanges ensure even gasket compression and reliable sealing performance.
Carbon Steel Grades and Typical Composition:
Carbon Steel (ASTM A105 / C22.8 equivalent) – Forged Carbon Steel
• Carbon (C): ≤ 0.35%
• Manganese (Mn): 0.60 – 1.05%
• Phosphorus (P): ≤ 0.035%
• Sulfur (S): ≤ 0.040%
• Silicon (Si): 0.10 – 0.35%
• Iron (Fe): Balance
Applications: Commonly used in oil and gas, petrochemical, water transmission, and power generation industries, especially in applications where high mechanical strength and pressure handling are more critical than corrosion resistance.
Applications of DIN 2634 Carbon Steel Flanges PN 25:
• Oil and Gas Pipelines
Widely used in upstream and downstream systems for fluid transport under high pressure.
• Petrochemical and Refining Plants
Efficiently handles high-pressure flow systems involving hydrocarbons and steam.
• Power Plants and Boiler Systems
Suited for high-pressure steam and water lines, offering excellent tensile strength and fatigue resistance.
• Water and Wastewater Infrastructure
Used in municipal and industrial pipelines requiring cost-effective, robust flange connections.
• General Industrial Systems
Applicable in a wide range of mechanical systems and processing plants handling non-corrosive or mildly corrosive media.
Key Features:
• Compliant with DIN 2634 pressure and dimensional standards
• PN 25 rating ensures compatibility with high-pressure pipelines
• High tensile and yield strength for demanding structural requirements
• Weld neck design enhances resistance to vibration and thermal expansion
• Cost-effective solution for pressure-bearing connections
• Available in standard and custom sizes, surface finishes, and pressure ratings
• Heat treatment and coating options available upon request
Conclusion:
DIN 2634 carbon steel flanges PN 25 from Ladhani Metal Corporation provide a robust and economical solution for high-pressure systems where mechanical performance is essential. Their strength, reliability, and adaptability make them a preferred choice across industries such as oil and gas, power generation, and water infrastructure. For technical specifications, custom configurations, or pricing, contact Ladhani Metal Corporation today.
DIN 2634 super duplex steel flanges PN 25 are high-performance weld neck flanges designed in accordance with the DIN 2634 standard. These flanges are engineered for high-pressure systems operating up to 25 bar (362 psi) and are manufactured from premium super duplex stainless steel grades. Known for their superior strength, excellent corrosion resistance, and enhanced resistance to stress corrosion cracking and pitting, super duplex flanges are ideally suited for demanding industrial environments. Their robust mechanical properties make them a reliable choice for aggressive service conditions and high-pressure applications.
Ladhani Metal Corporation is a global leader in the manufacturing and supply of super duplex steel flanges. With advanced production facilities, precision engineering capabilities, and rigorous quality assurance practices, the company ensures that each flange meets the highest standards of safety, durability, and performance under extreme conditions.
Pressure Rating:
• PN 25 (25 bar / 362 psi): Designed for systems requiring high strength and exceptional corrosion resistance under elevated pressure conditions.
Flange Type:
• Weld Neck Flanges
Featuring a tapered hub design, weld neck flanges deliver optimal stress distribution and secure, leak-free connections in systems exposed to thermal and mechanical loading.
• Flat Face (FF) Flanges
Recommended for use with softer gasket materials or systems incorporating cast iron components, flat face flanges provide uniform gasket compression and reliable sealing.
Super Duplex Steel Grades and Typical Composition:
Super Duplex Steel (UNS S32750 / S32760) – Ferritic-Austenitic Stainless Steel
• Chromium (Cr): 24.0 – 26.0%
• Nickel (Ni): 6.0 – 8.0%
• Molybdenum (Mo): 3.0 – 5.0%
• Nitrogen (N): 0.2 – 0.3%
• Iron (Fe): Balance
Applications: Widely used in environments where high strength, corrosion resistance, and resistance to chloride-induced stress corrosion cracking are essential, such as offshore platforms, chemical plants, and desalination facilities.
Applications of DIN 2634 Super Duplex Steel Flanges PN 25:
• Offshore and Subsea Installations
Withstand chloride-rich marine environments, offering long-term durability and resistance to seawater corrosion.
• Chemical and Petrochemical Processing
Suitable for handling aggressive chemicals, acids, and solvents under high pressure and temperature conditions.
• Desalination and Water Treatment Plants
Perform reliably in saline and brine-rich environments with superior resistance to pitting and crevice corrosion.
• Power Generation and Heat Exchangers
Offer excellent performance in high-temperature, high-pressure applications requiring strength and corrosion protection.
• Pulp and Paper Industry
Operate effectively in harsh chemical environments including bleach and acidic processing streams.
Key Features:
• Manufactured to DIN 2634 specifications for dimensional accuracy and pressure handling
• PN 25 pressure class supports high-performance applications
• Superior resistance to localized corrosion including pitting and stress corrosion cracking
• High strength-to-weight ratio and excellent mechanical properties
• Weld neck design ensures structural integrity and resistance to fatigue
• Available in both UNS S32750 and S32760 super duplex grades
• Customizable in size, pressure class, and surface finish upon request
Conclusion:
DIN 2634 super duplex steel flanges PN 25 from Ladhani Metal Corporation are engineered to deliver top-tier performance in environments where mechanical strength and corrosion resistance are non-negotiable. Their robust construction and excellent durability make them ideal for marine, chemical, and industrial applications operating under high pressure. For detailed specifications, project consultations, or a custom quote, contact Ladhani Metal Corporation today.