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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. #Mumbai #Pune #Ahmedabad #Vadodara #Surat #Rajkot #Jamnagar #Bharuch #Ankleshwar #Vapi #Delhi #Faridabad #Ghaziabad #Noida #Gurugram #Chennai #Coimbatore #Tiruchirappalli #Hyderabad #Visakhapatnam #Vijayawada #Bangalore #Mangalore #Mysore #Kolkata #Durgapur #Asansol #Bhubaneswar #Rourkela #Raipur #Bhilai #Bilaspur #Nagpur #Nashik #Aurangabad #Indore #Bhopal #Jabalpur #Kanpur #Lucknow #Varanasi #Jaipur #Kota #Udaipur #Jodhpur #Chandigarh #Ludhiana #Jalandhar #Haridwar #Dehradun #Agra #Meerut #Aligarh #Moradabad #Bareilly #Mathura #Gwalior #Rewa #Satna #Sagar #Ujjain #Ratlam #Solapur #Kolhapur #Amravati #Akola #Jalgaon #Latur #Sangli #Nanded #Gandhinagar #Bhavnagar #Mehsana #Surendranagar #Junagadh #Nadiad #Nizamabad #Karimnagar #Warangal #Kurnool #Nellore #Tirupati #Madurai #Tirunelveli #Thoothukudi #Belgaum #Hubli #Tumkur #Sambalpur #Jamshedpur #Ranchi #Dhanbad #Patna #Muzaffarpur#halftubeshield #utypehalftubeshield #tubeshieldexporter #TubeShield #HalfTubeShield #SSHalfRoundShield #BoilerTubeShield #BoilerShield #TubeProtection #Tubeshieldmanufacturer #BoilerTubeProtection #SSTubeShield #MetalIndustry #SteelFabrication #IndustrialShielding #SS304Shield #SS316Shield #StainlessSteelShield #WeldOnShield #WeldedTubeShield #TubeCladding #BoilerTubeSleeve #TubeSleeve #MetalFabrication #PowerPlantSupplies #RefineryEquipment #ProcessIndustry #MetalComponent #TubeShieldForBoilers #BoilerParts #SteelSolutions #TubeShieldManufacturer #TubeShieldSupplier #SSShielding #IndustrialTubeShield #BoilerTubeGuard #CustomMetalParts #SteelIndustryIndia #MetalEngineering #HeavyIndustrySupply #StainlessSteelIndia #SteelExporters #MetalComponentExport #FabricatedProducts #SteelDealer #IndustrialSupplyIndia #BoilerTubeFittings #TubeShieldingSolutions #HalfTubeCover #HeatExchangerShield #HalfRoundReheaterShield #ReheaterTubeShield #BoilerReheaterProtection #PowerPlantTubeShield #BoilerErosionShield #SteamBoilerTubeShield #HighTempTubeShield #BoilerWearProtection

DIN 2633 stainless steel flanges PN 16 are precision-engineered weld neck flanges manufactured in accordance with the DIN 2633 standard. These flanges are designed for higher medium-pressure applications up to 16 bar (232 psi), offering durable and secure connections in a wide range of industrial pipeline systems. Made from high-quality stainless steel grades such as 304, 316, and 321, they offer superior corrosion resistance, mechanical strength, and long-term performance under more demanding operating and environmental conditions. Ladhani Metal Corporation is a leading global manufacturer and supplier of stainless steel flanges, known for consistent product quality, technical precision, and adherence to international standards. Each flange undergoes rigorous inspection to ensure compliance with industry norms and safety guidelines. Pressure Rating: • PN 16 (16 bar / 232 psi): Suitable for medium to high-pressure pipeline systems requiring enhanced joint strength and corrosion protection. Flange Type: • Weld Neck Flanges Designed with a long tapered hub that facilitates proper pipe alignment and reduces stress concentration at the flange base. This ensures smooth flow transitions and minimizes turbulence. • Flat Face (FF) Flanges Flat face configuration promotes uniform gasket compression, making it ideal for systems using soft gasket materials or mating with cast components. Stainless Steel Grades and Full Composition: Stainless Steel 304 • Chromium (Cr): 18.0 – 20.0% • Nickel (Ni): 8.0 – 10.5% • Carbon (C): ≤ 0.08% (304), ≤ 0.03% (304L) • Manganese (Mn): ≤ 2.0% • Silicon (Si): ≤ 1.0% • Phosphorus (P): ≤ 0.045% • Sulfur (S): ≤ 0.03% • Iron (Fe): Balance Applications: Suitable for general-purpose piping systems including potable water, food-grade processing lines, and moderate chemical environments. Stainless Steel 316 • Chromium (Cr): 16.0 – 18.0% • Nickel (Ni): 10.0 – 14.0% • Molybdenum (Mo): 2.0 – 3.0% • Carbon (C): ≤ 0.08% (316), ≤ 0.03% (316L) • Manganese (Mn): ≤ 2.0% • Silicon (Si): ≤ 1.0% • Phosphorus (P): ≤ 0.045% • Sulfur (S): ≤ 0.03% • Iron (Fe): Balance Applications: Suitable for more aggressive environments including chemical processing, marine systems, and equipment exposed to chlorinated solutions or cleaning agents. Stainless Steel 321 • Chromium (Cr): 17.0 – 19.0% • Nickel (Ni): 9.0 – 12.0% • Titanium (Ti): ≥ 5 × C (typically 0.20 – 0.70%) • Carbon (C): ≤ 0.08% • Manganese (Mn): ≤ 2.0% • Silicon (Si): ≤ 1.0% • Phosphorus (P): ≤ 0.045% • Sulfur (S): ≤ 0.03% • Iron (Fe): Balance Applications: Preferred in applications involving elevated temperatures and moderate corrosion exposure, such as exhaust systems, heat exchangers, and food-grade thermal equipment. Applications of DIN 2633 Stainless Steel Flanges PN 16: • Industrial Water Systems Used in pressurized water delivery and treatment systems requiring increased pressure tolerance. • Chemical and Petrochemical Plants Suitable for pipelines transporting reactive or mildly corrosive chemicals. • Marine and Offshore Applications Resistant to saltwater corrosion and pressure variations in marine environments. • Food and Beverage Processing Employed in sanitary and hygienic systems requiring strong, corrosion-resistant joints. • HVAC Systems Used in high-pressure duct and pipe connections for heating, ventilation, and cooling systems. Key Features: • Manufactured in compliance with DIN 2633 standards • PN 16 pressure rating for enhanced medium-pressure service • Weld neck design supports secure, vibration-resistant connections • Offered in stainless steel grades 304, 304L, 316, 316L, and 321 • High resistance to chemical and environmental corrosion • Long-lasting performance under mechanical stress and thermal cycles • Custom dimensions, materials, and finishes available upon request Conclusion: DIN 2633 Stainless Steel Flanges PN 16 from Ladhani Metal Corporation are built for reliability in demanding industrial settings that require higher pressure tolerance and superior corrosion resistance. These weld neck flanges, made from premium stainless steel, are ideal for applications across water treatment, chemical processing, marine installations, and food-grade systems. For custom configurations, technical consultations, or detailed pricing, contact Ladhani Metal Corporation today.

DIN 2630 titanium flanges PN 2.5 are low-pressure weld neck flanges manufactured in accordance with the DIN 2630 standard. Designed to handle pressure ratings up to 2.5 bar (36.25 psi), these flanges are ideal for applications that demand lightweight, corrosion-resistant, and high-performance materials in non-critical or low-pressure environments. Made from high-grade titanium alloys such as Grade 2 and Grade 5 (Ti-6Al-4V), these flanges offer outstanding resistance to corrosion, especially in seawater, chlorine-rich, and oxidizing environments. Ladhani Metal Corporation is a leading global manufacturer and supplier of titanium flanges, recognized for engineering excellence and quality assurance. Our DIN 2630 PN 2.5 titanium weld neck flanges are widely used in sectors including marine, desalination, medical equipment, aerospace, and low-pressure chemical processing. With a focus on longevity and material efficiency, Ladhani Metal Corporation delivers flanges that meet stringent international standards for performance and safety. Pressure Rating: • PN 2.5 (2.5 bar / 36.25 psi): Suitable for lightweight, low-pressure systems requiring exceptional corrosion resistance and long service life. Flange Type: • Weld Neck Flanges Designed with a long tapered hub that provides stress reinforcement and reduces turbulence at the pipe connection. Ideal for ensuring structural integrity in precision-engineered piping systems. • Flat Face (FF) Flanges Flat face design allows for even gasket compression and is ideal for mating with cast or softer materials in low-pressure setups. Titanium Grades and Full Composition: Titanium Grade 2 (UNS R50400) • Titanium (Ti): ≥ 98.9% • Iron (Fe): ≤ 0.30% • Oxygen (O): ≤ 0.25% • Carbon (C): ≤ 0.08% • Nitrogen (N): ≤ 0.03% • Hydrogen (H): ≤ 0.015% Applications: Unalloyed titanium with excellent corrosion resistance in oxidizing and mildly reducing environments. Common in marine piping, desalination plants, and chemical systems. Titanium Grade 5 (Ti-6Al-4V / UNS R56400) • Titanium (Ti): Balance • Aluminum (Al): 5.5 – 6.75% • Vanadium (V): 3.5 – 4.5% • Iron (Fe): ≤ 0.40% • Oxygen (O): ≤ 0.20% • Carbon (C): ≤ 0.08% • Nitrogen (N): ≤ 0.05% • Hydrogen (H): ≤ 0.015% Applications: High-strength alloy with superior corrosion resistance. Used in aerospace, offshore equipment, and high-performance medical devices. Applications of DIN 2630 Titanium Flanges PN 2.5: • Marine and Offshore Systems Ideal for saltwater environments and seawater cooling lines due to superior corrosion resistance. • Chemical and Pharmaceutical Equipment Used in low-pressure, high-purity chemical handling systems. • Aerospace and Defense Applied in lightweight structural components where corrosion resistance and strength-to-weight ratio are critical. • Medical and Biomedical Devices Used in non-pressurized piping for medical processing and cleanroom environments. Key Features: • Manufactured according to DIN 2630 standards • PN 2.5 pressure class for non-critical, low-pressure applications • Lightweight and strong titanium construction • Weld neck design for superior mechanical performance • Exceptional corrosion resistance in aggressive environments • Available in titanium Grade 2 and Grade 5 • Flat face option for uniform sealing in sensitive applications • Custom sizes, finishes, and material options available upon request Conclusion: DIN 2630 Titanium Flanges PN 2.5 from Ladhani Metal Corporation offer a premium solution for industries requiring superior corrosion resistance, lightweight performance, and precision-engineered flange components for low-pressure service. Whether for marine, chemical, or high-tech applications, these titanium weld neck flanges deliver long-term reliability and material integrity. Contact Ladhani Metal Corporation for customized specifications, technical support, or detailed pricing.

DIN 2627 Carbon Steel flanges PN 400 are high-strength blind flanges designed for use in high-pressure applications across a wide range of industrial systems. Manufactured in accordance with the DIN 2627 standard, these flanges are primarily used to isolate piping systems by sealing off the end of a pipeline or vessel opening. The PN 400 pressure rating (400 bar / 5800 psi) ensures reliable performance under intense pressure and mechanical stress. Carbon steel flanges offer excellent tensile strength, impact resistance, and structural integrity, making them a cost-effective solution for systems where corrosion resistance is not the primary concern. Typically used in applications involving water, steam, oil, and gas, DIN 2627 carbon steel blind flanges are well-suited for power plants, refineries, petrochemical facilities, and general industrial systems. Ladhani Metal Corporation is a trusted global manufacturer and exporter of carbon steel flanges, producing components that meet rigorous international standards for material quality, dimensional accuracy, and pressure containment. Pressure Rating: • PN 400 (400 bar / 5800 psi): Suitable for extremely high-pressure systems in industrial pipelines and mechanical installations. Flange Type: • Blind Flanges Solid, non-bored flanges used to terminate flow or provide system isolation. Commonly used for pressure testing, maintenance access, and future expansion. • Flat Face (FF) Flanges Flat sealing surfaces designed for use with full-face gaskets and flat-faced mating flanges. Promotes even bolt loading and effective sealing under high-pressure conditions. Carbon Steel Grades and Composition: ASTM A105 (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% Applications: Commonly used for high-temperature and high-pressure systems. Ideal for oil and gas, steam, and hydraulic systems. ASTM A350 LF2 (Low-Temperature Carbon Steel) • Carbon (C): ≤ 0.30% • Manganese (Mn): 0.60 – 1.35% • Silicon (Si): 0.15 – 0.30% • Nickel (Ni): ≤ 1.0% Applications: Suitable for sub-zero temperature services such as cryogenic systems, LNG processing, and cold-weather pipelines. Applications of DIN 2627 Carbon Steel Flanges PN 400: • Oil and Gas Transmission Lines Used in pipeline systems and refineries handling hydrocarbons under high pressure. • Steam and Power Generation Plants Ideal for high-pressure steam lines, condensate systems, and boiler feedwater applications. • Petrochemical and Chemical Industries Suitable for handling neutral and non-aggressive chemical fluids and process gases. • Water Treatment and Pumping Stations Used in high-pressure water systems, including pumping stations, pressure regulators, and testing units. • Heating, Ventilation, and Air Conditioning (HVAC) Employed in high-pressure chilled water and steam systems for industrial facilities. • General Manufacturing and Engineering Systems Reliable for structural piping systems in factories and mechanical installations. Key Features: • Compliant with DIN 2627 specifications • PN 400 pressure rating for ultra-high-pressure systems • Blind flange design allows for system isolation and pressure containment • Flat face design compatible with full-face gaskets and flat mating surfaces • Manufactured from forged carbon steels like ASTM A105 and A350 LF2 • Excellent strength, ductility, and impact resistance • Economical and durable for non-corrosive environments • Widely used across oil and gas, power, chemical, and water treatment sectors • Custom sizes, pressure classes, surface coatings, and face types available upon request Conclusion: DIN 2627 Carbon Steel Flanges PN 400 from Ladhani Metal Corporation are engineered for high-performance applications requiring strength, pressure retention, and reliability in demanding industrial environments. Whether used in power plants, oil pipelines, or steam systems, these flanges provide durable and cost-effective sealing for critical operations. Contact Ladhani Metal Corporation for product specifications, technical support, or custom solutions tailored to your piping system requirements.

DIN 2569 Super Duplex Steel Flanges PN 100 are precision-engineered welding neck flanges manufactured from corrosion-resistant super duplex stainless steel, specifically designed to withstand extreme mechanical stress and harsh environments. Built to DIN 2569 standards, these flanges offer superior strength, pitting resistance, and durability, making them ideal for use in offshore, marine, chemical, petrochemical, and water treatment industries. Ladhani Metal Corporation is a reputable manufacturer and exporter of super duplex steel flanges, delivering products that comply with international quality standards. The welding neck design ensures high-integrity, leak-proof connections—perfect for applications with fluctuating pressure, high temperatures, and aggressive media. Pressure Rating: • PN 100 (100 bar / 1450 psi): Specifically designed for high-pressure systems requiring robust sealing performance, excellent corrosion resistance, and structural strength in corrosive and high-stress environments. Flange Types: • Welding Neck Flanges Provide a tapered hub for stress distribution, ideal for high-pressure and corrosive piping systems. • Raised Face (RF) Flanges Facilitates effective gasket compression and sealing under elevated pressure and temperature. • Flat Face (FF) Flanges Used for connections with flat-faced components or non-metallic sealing materials. • Forged Welding Neck Flanges Offer enhanced strength, dimensional precision, and pressure resistance. • Custom-Machined Flanges Available in a wide range of sizes, pressure classes, and super duplex steel grades to meet specific project requirements. Super Duplex Steel Grade and Composition: 1. ASTM A182 F53 (UNS S32750) Composition: • Chromium (Cr): 24.0–26.0% • Nickel (Ni): 6.0–8.0% • Molybdenum (Mo): 3.0–5.0% • Nitrogen (N): 0.24–0.32% • Manganese (Mn): ≤ 1.20% • Carbon (C): ≤ 0.030% • Phosphorus (P): ≤ 0.035% • Sulfur (S): ≤ 0.020% Applications: Ideal for use in highly corrosive conditions such as offshore platforms, subsea piping, desalination systems, pressure vessels, and high-pressure chemical reactors. Provides excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. Applications of DIN 2569 Super Duplex Steel Flanges: • Oil and Gas Pipelines: Used in high-pressure, high-corrosion subsea and offshore piping systems. • Offshore and Marine Engineering: Installed in seawater cooling lines, risers, and ballast systems for maximum corrosion resistance. • Petrochemical and Refinery Units: Applied in reactors, columns, and corrosive process piping exposed to high stress and aggressive chemicals. • Water Treatment and Desalination: Used in brine systems, RO pipelines, and chemical dosing lines requiring high strength and pitting resistance. • Pulp and Paper Industry: Employed in bleach plants and digester lines handling chlorinated compounds under pressure. Key Features: • Manufactured to DIN 2569 standard • Available in PN 100 pressure rating • High strength and corrosion resistance • Superior pitting and stress corrosion cracking resistance • Excellent performance in marine and chemical environments • Designed for permanent, high-pressure pipe connections • Supplied with test certificates, quality assurance documents, and full material traceability • Can be surface-treated with pickling, passivation, or shot blasting Conclusion: DIN 2569 Super Duplex Steel Flanges PN 100 from Ladhani Metal Corporation offer premium strength, safety, and corrosion resistance for demanding environments. Suitable for a wide range of critical applications, these flanges are available in custom sizes and pressure classes. For technical details, orders, or consultation, contact Ladhani Metal Corporation today.

DIN 2544 is a standard used in Germany for the design, dimensions, and testing of stainless steel flanges. These flanges are used to connect pipes, valves, pumps, and other equipment to form a piping system. The DIN 2544 standard applies to welded flanges, specifically for high-pressure and temperature applications. Key Features of DIN 2544 Stainless Steel Flanges: Material: The flanges are primarily made from stainless steel, known for its high corrosion resistance, durability, and resistance to high temperatures. This makes them ideal for use in chemical, petrochemical, power generation, and food industries. Function: These flanges provide strong mechanical connections for piping systems. They allow easy disconnection for maintenance and cleaning. Pressure Rating: The pressure class of DIN 2544 flanges is typically PN 25 (pressure nominal 25 bar), meaning they are rated for a maximum working pressure of 25 bar (about 362 psi) at specific temperature conditions. Design: The flanges are designed to withstand high pressure, typically with a thicker body and reinforced sections. They feature a bolt circle diameter that fits the corresponding flange, allowing secure bolted connections. Face Type: Most DIN 2544 flanges come with a flat face, though raised face designs may also be available. Types of DIN 2544 Stainless Steel Flanges: Weld Neck Flanges: These are the most common type, where the flange is welded to the pipe. The neck is long, which makes the connection strong and able to handle high pressure. Slip-On Flanges: These flanges slide over the pipe and are then welded in place. They are commonly used in systems with lower pressure ratings. Blind Flanges: Used to seal the ends of piping systems, they do not have a hole in the center. They are typically used for maintenance and isolation purposes. Threaded Flanges: These flanges have threads on the inner surface, allowing them to be screwed directly onto a threaded pipe. They are used where welding is not possible. Socket Weld Flanges: These flanges have a socket in which the pipe is inserted and then welded in place. They are used in small-diameter piping systems. DIN 2544 Stainless Steel Flanges grades : Grade 304 (1.4301): Composition: 18% Cr, 8% Ni. Properties: Excellent corrosion resistance, good strength, easy to weld, and temperature resistance up to 870°C. Grade 316 (1.4401): Composition: 16-18% Cr, 10-14% Ni, 2-3% Mo. Properties: Superior corrosion resistance, especially against chlorides, and temperature resistance up to 870°C. Grade 321 (1.4541): Composition: 17-19% Cr, 9-12% Ni, Ti (Titanium stabilizer). Properties: Excellent resistance to high temperatures (up to 870°C) and intergranular corrosion, especially in welds. Pressure Rating (PN 25): PN 25 refers to the nominal pressure rating of the flange, which indicates that the flange can handle a maximum pressure of 25 bar (362 psi) at ambient temperature conditions. This pressure class is ideal for medium to high-pressure applications, typically used in systems such as: Steam pipelines Water treatment facilities Petrochemical industries Summary: DIN 2544 stainless steel flanges are reliable components in high-pressure systems.They are essential in industries requiring secure and durable piping systems. #din2544 #din2544ssflanges #ssflanges #stainlesssteelflanges

Product Name: Titanium Pipe Standard: ASTM B338 Material: Gr1, Gr2 Unit Price: $25usd/kg-$40usd/kg Type: Welded/Seamless Shape: Round Outer Diameter: 9.52mm/12.7mm/15.9mm/19mm/21.7mm/25.4mm/32mm/33.4mm/38mm/45mm etc. Wall Thickness: 0.5-3.0mm Length: Max 12000mm Surface: Bright Product Information Titanium welded pipe is formed by rolling a cold-rolled titanium strip into a tube shape and then using tungsten inert gas shielded welding to weld the gap. Due to its excellent seawater corrosion resistance, it has become the first choice for various types of condensers and heat exchangers to replace stainless steel and copper tubes as heat exchange tubes since it was developed. Therefore, it has been widely used in the manufacture of coastal power plants, nuclear power plants, Condensers and heat exchangers that require sea water as a cooling medium in seawater desalination and petrochemical industries.

DIN 2543 flanges are designed to meet the DIN (Deutsches Institut für Normung) standard, and duplex flanges refer to flanges made from duplex stainless steel alloys. Duplex stainless steel is a hybrid material, combining both austenitic and ferritic microstructures. This gives duplex steels a unique combination of strength and corrosion resistance that is superior to regular stainless steel. Material: Typically made from Duplex Stainless Steel grades such as 2205 or 2507. Pressure Rating (PN16): Rated for 16 bar (approx. 232 psi) at 20°C (68°F), making them suitable for medium-pressure applications. Key Features of DIN 2543 Duplex Flanges: Corrosion Resistance: Duplex stainless steel offers superior resistance to corrosion in aggressive environments, such as in chloride, sulfuric acid, and seawater. This makes it ideal for marine, chemical, and industrial environments. Strength: Duplex steels combine the strength of ferritic steel with the corrosion resistance of austenitic steel, offering higher strength than regular stainless steel while maintaining good toughness. Durability: Excellent resistance to pitting and crevice corrosion, ensuring long-term durability in harsh conditions. Weldability: While duplex flanges are weldable, the welding process must be carefully controlled to prevent issues like sensitization or intermetallic phases. Types of Duplex Flanges (DIN 2543): Weld Neck Flanges (WN): These flanges have a tapered neck for welding directly to pipes, providing extra strength and durability in high-pressure applications. Slip-On Flanges (SO): These are easy to install and are placed over the pipe, then welded inside and outside. Blind Flanges (BL): Used to close the end of a pipe or system, preventing fluid flow. Socket Weld Flanges (SW): These flanges have a socket into which the pipe is inserted and then welded, commonly used for small-bore systems. Lap Joint Flanges (LJ): These are paired with a lap joint stub end and allow for easy alignment and disassembly. Common Duplex Stainless Steel Grades for Flanges: Grade 2205: Composition: Contains approximately 22% chromium, 5% nickel, and 3% molybdenum. Properties: Excellent corrosion resistance, especially to pitting and crevice corrosion. High strength and good weldability. Applications: Used in chemical, petrochemical, and marine applications. Grade 2507 (Super Duplex): Composition: Contains 25% chromium, 7% nickel, and 4% molybdenum. Properties: Superior corrosion resistance and strength compared to 2205. Ideal for extremely aggressive environments. Applications: Used in seawater, desalination plants, and high-pressure industrial applications. Pressure Rating (PN16): PN16 refers to the pressure rating of 16 bar (or approximately 232 psi) at 20°C (68°F). Applications: Duplex flanges with a PN16 rating are suitable for medium-pressure systems in industries such as chemical processing, oil & gas, water treatment, and marine environments. Conclusion: DIN 2543 Duplex flanges are a reliable solution for medium-pressure applications (PN16) requiring high strength and exceptional resistance to corrosion.

Porduct name : Titanium clad stainless steel tube sheet Material: Titanium +steel,Titanium+stainless steel etc. Size &Standard: As per client drawing Production Method: Forging,annealing and machining Advantage: Excellent corrosion resistance ability Packing: Plywood case Application: Heat Exchanger, chemical equipment, Pressure Vessel, filter devices, etc. Titanium clad stainless steel tube sheet Titanium composite steel plate tube-sheet is a single or double-sided composite plate made of ordinary grade TA1 or TA2 (composite metal) and carbon steel or alloy steel by explosion, explosion + rolling or hot rolling. Titanium metal has excellent corrosion resistance, widely used in flue gas desulfurization equipment, power plant chimneys, chemical reactors, heat exchangers, pressure vessels, etc. But its disadvantage is high cost, titanium composite steel plate tubesheet has the corrosion resistance of titanium metal and the structural strength of steel, can greatly reduce the project cost. At present, the production method of titanium composite steel tubesheet is as follows: 1. Weld compound 2. Rolling compound 3. Explosive welding 4. Explosive welding + rolling Baoji Lihua uses explosive welding and rolling and combines the two processes. This method can overcome the disadvantages of small area and complex rolling process of explosive composite plate, give full play to their respective advantages, and produce titanium steel composite plate with large area and small thickness. It is more efficient and cheaper. Technological parameters and shear strength of explosive welding of Titanium clad stainless steel plate tube sheet 1 Cladding materials Base materials h0/ mm Wg/ (g.cm-2) Bond strength/MPa 1 2 3 4 Average Remark Metal δ1/ mm Metal δ2/ mm Titanium 3 5 Stainless steel 18 5 6.5 1.4 1.6 σt 293 200 392 179 266 The substrate is generally polished. σf 247 208 113 92 165 σt 447 530 460 441 444 The substrate is polished. σf 403 200 363 322 σt 139 105 203 205 163 The substrate is generally polished. σf 231 345 286 287 285 σt 407 410 263 407 372 The substrate is polished. σf 498 571 513 527 Losive welding of Titanium clad stainless steel plate tube sheet 2 Cladding materials Base materials h0/ mm Wg/ (g.cm-2) Bond strength/MPa 1 2 3 4 Average Remark Metal δ1/ mm Metal δ2/ mm Titanium 3 5 Stainless steel 18 5 6.5 1.4 1.6 σt 392 87 240 18 The substrate is generally polished. σf 345 92 157 12 σt 530 279 402 5 The substrate is polished. σf 403 200 321 3 σt 339 60 230 18 The substrate is generally polished. σf 287 149 233 11 σt 571 513 541 2 The substrate is polished.