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.

Ladhani Metal Corporation is a manufacturer and stockist of a wide range of titanium valves, including: Titanium Full Bore and Flanged Valves, Titanium Needle Valves, Titanium Check Valves, Titanium Globe Valves, Titanium Gate Valves, Titanium Y Strainers, and other titanium forged fittings. Titanium valves are available in a variety of material grades, ranging from the most commonly used Grade 2 to alloyed titanium grades such as Gr. 5, Gr. 7, and Gr. 12. Titanium alloys are also known as R50400, R50550, and R56400 in UNS. Titanium valves are designed as per ANSI B16.34. Titanium valves are primarily made from ASTM B381 Grade F2 and F5. We manufacture our ball valves entirely from titanium, including: Titanium Ball Titanium Body Titanium Handle Titanium Fasteners Titanium Flange Ladhani Metal Corporation is a manufacturer, exporter, and supplier of titanium ball valves. Our Titanium Ball Valve Products: 1000 - 6000 PSI Two-Piece Full Bore Ball Valve 1000 - 6000 PSI Three-Piece Full Bore Ball Valve ANSI Class 150 – 900 Two-Piece Flanged Ball Valve ANSI Class 150 – 900 Two-Piece Flanged Ball Valve Design Features: Full Bar Machined Construction Valve Design as per ANSI B16.34 2-Piece Body Design, Full Bore Blow-Out-Proof Stem Design Flange Face to Face: ANSI B16.10 Class 150/300 RF Flange Dimension: ANSI B16.5 Class 150/300 End Type: Screwed & Welded End NACE MR0175 is available Ladhani Metal Corporation can also manufacture titanium ball valves in grades such as Titanium Grade 1, Titanium Grade 2, Titanium Grade 5, Titanium Grade 9, Titanium Grade 6, and Titanium Grade 23. Available at the following locations: Coimbatore, Rudrapur, Bhilai, Raigarh, Navi Mumbai, Aluva, Vijayawada, Firozabad, Panna, Panipat, Channapatna, Varanasi, Moradabad, Bareilly, Jamshedpur, Tiruppur, Rajahmundry, Bokaro Steel City, Kolkata, Durgapur, Kharagpur, Hosdurg, Haldia, Indore, Pithampur, Belagavi, Dibrugarh, Palakkad, Delhi, Noida, Kannur, Salem, Sivakasi, Kanpur, Rajkot, Kochi, Peenya, Surat, Rourkela, Visakhapatnam, Angul, Ahmedabad, Gandhinagar, Jamnagar, Vadodara, Bharuch-Ankleshwar, Ludhiana, Pimpri-Chinchwad, Mumbai, Bangalore, Thiruvananthapuram, Thrissur, Gajraula, Unnao, Sri City, Margao, Kunnamkulam, Darjeeling, Nashik, Chennai, Hosur, Haridwar, Faridabad, Mathura, Gurugram, Baddi, Calicut, Pune, Aurangabad, Nagpur, Mirzapur, Perambra, Muzaffarnagar, Meerut, Saharanpur, Bulandshahr, Ichalkaranji, Muvattupuzha, Aligarh, Anjar, Bardoli, Chittaranjan, Hyderabad, Jharia, Morbi, Nepanagar, Kollam, Tiruvalla, Kottayam, Idukki, Alappuzha, Cherthala, Alwaye, Ambattur, Ambarnath, Amritsar, Avadi, Ankleshwar, Bhadravati, Cochin, Dindigul, Ennore, Guntur, Kagithapuram, Kalpakkam, Kollegal, Kolar, Lucknow, Mysore, Nandambakkam, Nangal, Neyveli, Ooty, Perambur, Pinjore, Rupnarayanpur, Renukoot, Sindri, Singhbhum, Sirpur, Udhana, Urkunta, Worli, Zaina Kot. We are an exporter to the following countries: Russia, Canada, United States, China, Brazil, Australia, Argentina, Kazakhstan, Algeria, Democratic Republic of the Congo, Denmark, Saudi Arabia, Mexico, Indonesia, Sudan, Libya, Iran, Mongolia, Peru, Chad, Niger, Angola, Mali, South Africa, Colombia, Ethiopia, Bolivia, Mauritania, Egypt, Tanzania, Nigeria, Venezuela, Namibia, Mozambique, Pakistan, Turkey, Chile, Zambia, Myanmar, Afghanistan, South Sudan, France, Somalia, Central African Republic, Ukraine, Madagascar, Botswana, Kenya, Yemen, Thailand, Spain, Turkmenistan, Cameroon, Papua New Guinea, Sweden, Uzbekistan, Morocco, Iraq, Paraguay, Zimbabwe, Norway, Japan, Germany, Republic of the Congo, Finland, Vietnam, Malaysia, Côte d'Ivoire, Poland, Oman, Italy, Philippines, Ecuador, Burkina Faso, New Zealand, Gabon, United Kingdom, Guinea, Uganda, Ghana, Romania, Laos, Guyana, Belarus, Kyrgyzstan, Senegal, Syria, Cambodia, Uruguay, and Suriname.

Molybdenum plates are flat, solid sheets of molybdenum metal, renowned for their outstanding properties such as high temperature resistance, strength, and corrosion resistance. These plates are primarily used in demanding industrial applications where materials need to perform under extreme conditions. Key Features of Molybdenum Plates: o High Melting Point: Molybdenum has a very high melting point of about 2,623°C (4,753°F), which makes it ideal for use in high-temperature environments such as aerospace, metal processing, and furnace construction. o Strength and Durability: Molybdenum plates maintain excellent mechanical strength and can withstand heavy stress and pressure without deformation. This makes them suitable for structural components in industries like aerospace and manufacturing. o Corrosion and Oxidation Resistance: Molybdenum is highly resistant to corrosion, especially in high-temperature conditions, which makes molybdenum plates ideal for use in chemically aggressive environments such as chemical processing plants. o Thermal and Electrical Conductivity: Molybdenum has good thermal and electrical conductivity, making it an ideal material for specialized applications in electronics and electrical components, such as filaments, electrodes, and connectors. o Workability: Despite being a hard and brittle metal at room temperature, molybdenum can be processed into thin plates with precise dimensions and surface finishes, making it versatile for various applications. o Ductility at Elevated Temperatures: Molybdenum's ductility increases at higher temperatures, allowing it to be shaped and fabricated into complex parts for industrial use. Common Applications: o Aerospace and Aviation: Molybdenum plates are used in the production of heat shields, turbine blades, and components for jet engines due to their ability to withstand high temperatures and stress. o Chemical and Petrochemical Industries: Molybdenum plates are employed in the construction of reactors, furnace linings, and other equipment that needs to resist harsh chemical environments at high temperatures. o Electronics and Electrical Engineering: Molybdenum plates are used in applications like electrical contacts, semiconductors, and components for vacuum tubes and other high-performance electronic devices. o Metallurgical Industry: Molybdenum plates are often used in the manufacturing of steel alloys and other metals to enhance strength, durability, and resistance to high temperatures.

Half Round Tube Shield Half Round Tube Shields by Ladhani Metal Corporation are precision-engineered protective components designed to safeguard boiler and heat exchanger tubes from thermal fatigue, oxidation, and mechanical erosion. These shields improve system reliability and extend tube service life in harsh industrial environments. The half-round form enables simple installation and effective protection of exposed tube surfaces. SS 310 U Type Half Round Tube Shield The SS 310 U Type Half Round Tube Shield is a high-temperature protective sleeve designed to cover U-bend and straight sections of tubes in boilers, superheaters, and heat exchangers. Made from stainless steel grade 310, it offers outstanding resistance to oxidation, carburization, and thermal stress at elevated temperatures. The U-type design ensures complete protection of return bends, where tube degradation is most common. Available in both inner and outer U configurations, these shields are custom-bent to match tube radius and diameter. • Outer U Type Half Round Tube Shield – Protects the external arc of the U-bend from radiant heat, slag buildup, and erosion. • Inner U Type Half Round Tube Shield – Shields the internal curve of the bend from gas turbulence, scaling, and corrosion. Ladhani Metal Corporation is a leading manufacturer and exporter of SS 310 U Type Half Round Tube Shields, offering durable and tailored solutions for global heat transfer systems. Chemical Composition of SS 310 – High Temperature Austenitic Stainless Steel • Carbon (C): ≤ 0.25% • Manganese (Mn): ≤ 2.00% • Phosphorus (P): ≤ 0.045% • Sulfur (S): ≤ 0.030% • Silicon (Si): ≤ 1.50% • Chromium (Cr): 24.0 – 26.0% • Nickel (Ni): 19.0 – 22.0% • Iron (Fe): Balance Applications: Preferred in high-temperature operations where oxidation resistance, heat stability, and carburization resistance are essential. Uses • U-bend protection in superheater and reheater coils • Shielding curved tubes in furnace coils and process heat exchangers • Prevention of high-temperature erosion in WHRB and HRSG systems • Surface protection in reformers and chemical reactors • Safeguarding heat transfer tubes in incinerators and kilns Features • Made from high-quality SS 310, the shield offers superior resistance to oxidation, scaling, and high-temperature corrosion, making it suitable for continuous exposure up to 1100°C. • The inner and outer U-type configurations provide complete protection for both sides of curved tube bends, ensuring uniform shielding in the most erosion-prone areas. • Precision-formed to match the tube’s bend radius and diameter, ensuring a tight, vibration-free fit that enhances durability and minimizes tube wall exposure. • Retains mechanical strength and dimensional stability under cyclic thermal loading, preventing deformation, cracking, or failure in high-heat environments. • Offered in various finishes such as pickled, passivated, or bright annealed to suit different service conditions and enhance surface corrosion resistance. • Easily installed using welding, clamping, or banding methods without requiring tube removal, enabling quick field installation and minimal system downtime. • Fully customizable in terms of thickness, length, and radius, allowing seamless integration with existing boiler, furnace, or heat exchanger systems. Applications • thermal power plants – Protects U-bend coils in superheaters and reheaters. Resists scale formation and creep at high flue gas temperatures. • petrochemical refineries – Shields curved exchanger tubes in reformers and heaters. Maintains integrity under carburizing and oxidizing atmospheres. • waste heat recovery systems (WHRBs) – Guards return bends against ash and slag attack. Enhances tube durability in high-flow, abrasive environments. • chemical and fertilizer plants – Used in U-tube reactors and ammonia converters. Prevents corrosion and surface damage under cyclic thermal loads. • HRSGs and boilers – Applied to curved tube sections in heat recovery units. Ensures stability under rapid heating and cooling cycles. Conclusion The SS 310 U Type Half Round Tube Shield by Ladhani Metal Corporation offers superior protection for curved tube sections operating in high-temperature and corrosive service conditions. Its exceptional resistance to oxidation and carburization makes it ideal for thermal, chemical, and energy-intensive industries. Manufactured with precision, these shields are available in custom sizes and finishes, ensuring a tight fit and long-term durability. For reliable and cost-effective tube protection, Ladhani Metal Corporation provides trusted solutions tailored to your operational demands. For design assistance, material selection, or quotation inquiries, please contact Ladhani Metal Corporation.

Half Round Tube Shield Half Round Tube Shields by Ladhani Metal Corporation are precision-engineered protective components designed to shield exposed tubes in boilers, heat exchangers, and furnaces from erosion, corrosion, and high-temperature damage. These shields are vital in extending equipment life and minimizing unplanned maintenance in industrial systems operating under extreme heat and pressure. SS 310S Half Round Tube Shield The SS 310S Half Round Tube Shield is a semi-cylindrical cover manufactured from high-quality stainless steel grade 310S. It is specifically designed for high-temperature environments where oxidation, scaling, and corrosive gas exposure are common. The “S” in SS 310S indicates lower carbon content than standard SS 310, which improves weldability and reduces the risk of carbide precipitation during welding and high-temperature exposure. The half-round profile allows easy installation over the tube surface, ensuring a tight fit and reliable protection across thermal cycles and mechanical stresses. Chemical Composition of SS 310S – Austenitic Stainless Steel • Carbon (C): ≤ 0.08% • Manganese (Mn): ≤ 2.00% • Phosphorus (P): ≤ 0.045% • Sulfur (S): ≤ 0.030% • Silicon (Si): ≤ 1.50% • Chromium (Cr): 24.0 – 26.0% • Nickel (Ni): 19.0 – 22.0% • Iron (Fe): Balance Uses • Boiler Tube Protection – Protects boiler tubes from flue gas corrosion, abrasive wear, and scaling in high-temperature zones, especially in coal-fired and biomass plants. • Heat Exchanger Tube Shielding – Prevents erosion and chemical attack in steam and process gas exchangers, maintaining thermal efficiency. • Furnace Tube Protection – Shields tubes from direct flame impingement and high thermal loads in industrial furnaces, kilns, and incinerators. • Petrochemical and Refining Operations – Guards tubes in reformers, crackers, and reactors from carburization and oxidation in aggressive processing environments. • Superheater and Reheater Systems – Provides robust protection to tubes exposed to extreme thermal stress in high-pressure steam circuits. Features • High-Temperature Resistance – SS 310S withstands temperatures up to 1100°C continuously, making it suitable for severe service conditions. • Low Carbon Content – Enhanced weldability and reduced risk of intergranular corrosion during or after welding processes. • Half-Round Design – Engineered for precise fitment over existing tubes, allowing efficient installation and tube surface coverage. • Corrosion and Oxidation Resistance – Excellent resistance to high-temperature oxidizing environments and thermal scaling. • Custom Options – Available in multiple lengths, thicknesses, diameters, and with various mounting or clamping configurations. • Surface Finishes – Offered in pickled, passivated, and bright annealed finishes to match system requirements and aesthetics. Applications • Thermal Power Plants – Shields boiler tubes from soot blowers, slag, and hot gas erosion in economizers and superheaters. • Refineries and Petrochemical Plants – Applied to tubes in cracking furnaces and heat recovery systems to resist high-temperature corrosion. • Heat Recovery Steam Generators (HRSGs) – Enhances tube life in combined-cycle systems where exhaust gases impact tube bundles. • Chemical Processing Facilities – Protects process tubes in aggressive thermal and chemical environments including acid and gas streams. • Industrial Boilers and Steam Systems – Ensures longevity of steam lines and tubing in high-pressure, high-temperature operations across various sectors. • Marine and Offshore Installations – Withstands corrosive sea air and high thermal loads in shipboard and platform boiler systems. Conclusion The SS 310S Half Round Tube Shield by Ladhani Metal Corporation delivers a high-performance solution for tube protection in extreme thermal and corrosive environments. Its low carbon composition ensures superior weldability and resistance to intergranular attack, making it a preferred choice for welded systems and continuous high-temperature applications. These shields reduce wear, enhance equipment life, and lower maintenance costs in power generation, refining, chemical, and marine industries. With customizable dimensions, high-grade material quality, and precision engineering, Ladhani Metal Corporation is your trusted partner for robust and reliable tube shielding solutions. For technical assistance, custom fabrication, or a quotation tailored to your application, please contact Ladhani Metal Corporation

DIN 2576 Carbon Steel Flanges PN 10 are slip-on type flanges manufactured in accordance with the DIN 2576 standard, suitable for piping systems operating under low to moderate pressures. Made from high-quality carbon steel, these flanges offer good mechanical strength and are cost-effective solutions for a wide range of industrial applications where corrosion resistance is not the primary concern. The slip-on design allows easy fitting over the pipe and facilitates welding on both the inner and outer edges, ensuring reliable and leak-proof connections. Ladhani Metal Corporation is a reputed manufacturer and global supplier of carbon steel flanges, delivering components that comply with international quality and dimensional standards. DIN 2576 carbon steel flanges are widely used in general-purpose piping systems across industries such as oil and gas, power generation, HVAC, water treatment, and process industries. Pressure Rating: • PN 10 (10 bar / 145 psi): Suitable for use in low to medium pressure systems with stable operational demands. Flange Types: • Slip-On Flanges These flanges slide over the pipe end and are welded on both sides, allowing for simple installation and strong mechanical joints. • Flat Face (FF) Flanges Designed to mate with flat gaskets and flat surfaces, suitable for systems involving cast iron or non-metallic components. Carbon Steel Grades and Composition: Common Grades: • ASTM A105 (Forged Carbon Steel) • ASTM A516 Grade 70 (Pressure Vessel Quality Steel) • IS 2062 (Structural Carbon Steel) Typical Composition (ASTM A105): • Carbon (C): 0.35% max • Manganese (Mn): 0.60 – 1.05% • Phosphorus (P): 0.035% max • Sulfur (S): 0.040% max • Silicon (Si): 0.10 – 0.35% Applications: DIN 2576 carbon steel flanges are preferred in systems where high strength is required and the risk of corrosion is minimal or controlled through external protection (e.g., coatings or linings). Common applications include: • Oil and Gas Transmission Used in pipelines and flowlines where moderate pressures are involved. • Power Plants Suitable for steam, water, and air systems in thermal and hydroelectric power stations. • Water Treatment and Distribution Employed in clean water and wastewater systems, including pumping stations and storage tanks. • HVAC Systems Utilized in heating, ventilation, and air conditioning ducting and piping. • Chemical and Petrochemical Applied in non-corrosive fluid handling and auxiliary systems. • Structural and Fabrication Works Used in non-pressure retaining structural supports and frames. Key Features: • Manufactured to DIN 2576 standards • PN 10 pressure rating for medium-duty applications • Cost-effective and mechanically strong • Available in a variety of carbon steel grades • Slip-on design offers ease of installation and alignment • Flat face design compatible with flat gaskets and soft materials • Ideal for industrial sectors with controlled or minimal corrosion environments • Custom drilling, dimensions, and surface treatments available Conclusion: DIN 2576 Carbon Steel Flanges PN 10 by Ladhani Metal Corporation offer a practical and economical solution for low to moderate pressure piping systems. With reliable performance, ease of installation, and availability in various carbon steel grades, these flanges are suited for a broad range of applications in power, water, oil and gas, and infrastructure industries. For detailed specifications, material compatibility, or project-based orders, contact Ladhani Metal Corporation today.

The DIN 2558 Monel Flange PN 6 is a precision-engineered piping component manufactured to meet DIN (Deutsches Institut für Normung) specifications. Made from high-performance Monel alloys—nickel-copper-based materials known for their outstanding resistance to corrosion, particularly in marine and chemical environments—these flanges offer exceptional durability and reliability in some of the most demanding industrial applications. Supplied by Ladhani Metal Corporation, these flanges are designed to provide a leak-free, long-lasting solution in medium-pressure systems. Monel flanges are widely used in industries such as marine engineering, chemical processing, hydrocarbon refining, heat exchangers, and offshore oil and gas production. Types: Weld Neck Flange – Offers a high-strength welded connection ideal for high-pressure and high-temperature systems. Slip-On Flange – Easy to install and align, welded on both sides for secure sealing. Blind Flange – Closes off the end of a pipeline or vessel, ensuring no fluid passes through. Threaded Flange – Allows for non-welded assembly, suitable for low-pressure piping systems. Socket Weld Flange – Designed for small-diameter, high-pressure applications requiring a smooth bore and strong weld. Grades & Chemical Composition: Monel 400 (UNS N04400): Nickel (Ni): ≥ 63.0% Copper (Cu): 28.0 – 34.0% Iron (Fe): ≤ 2.5% Manganese (Mn): ≤ 2.0% Carbon (C): ≤ 0.30% Silicon (Si): ≤ 0.50% Key Features: Excellent resistance to seawater, steam, salt, and caustic solutions; strong mechanical properties across a wide temperature range. Monel K500 (UNS N05500): Nickel (Ni): ≥ 63.0% Copper (Cu): 27.0 – 33.0% Aluminum (Al): 2.3 – 3.15% Titanium (Ti): 0.35 – 0.85% Iron (Fe): ≤ 2.0% Key Features: Combines the corrosion resistance of Monel 400 with higher strength and hardness due to age hardening; excellent resistance to sour gas and seawater environments. PN 6 Rating: The PN 6 rating signifies a nominal pressure class of 6 bar (87 psi), making these flanges ideal for medium-pressure systems where corrosion resistance is paramount, particularly in chloride-rich or alkaline environments. Features: Outstanding Corrosion Resistance: Especially effective in marine, saltwater, and chemical processing environments. High Strength and Toughness: Maintains structural integrity under mechanical stress and thermal fluctuations. Long Service Life: Designed for durability in aggressive media, reducing maintenance and replacement costs. Excellent Weldability: Compatible with standard welding techniques, allowing easy integration into piping systems. Versatile Industrial Use: Suitable for offshore platforms, shipbuilding, desalination, chemical plants, and heat exchangers. Leak-Proof Sealing: Precision manufacturing ensures tight connections that prevent leaks and system inefficiencies. Ladhani Metal Corporation ensures each DIN 2558 Monel Flange is manufactured with stringent quality control and tested for compliance with international standards. These flanges offer a reliable, corrosion-resistant solution for medium-pressure industrial systems operating in highly aggressive environments. #din2558 #din2558flanges #din2558monelflanges #monelflanges #flanges

The DIN 2558 Duplex Flange PN 6 is a high-quality, precision-engineered piping component designed to deliver exceptional mechanical strength and corrosion resistance in harsh industrial environments. Manufactured to DIN (Deutsches Institut für Normung) standards, these flanges are produced using premium duplex stainless steels, which combine the benefits of both austenitic and ferritic stainless steels. Ladhani Metal Corporation supplies these flanges with a strong focus on durability, reliability, and performance under challenging operating conditions. Duplex flanges are widely used in industries such as oil and gas, petrochemical, marine, desalination, pulp and paper, and chemical processing—where resistance to stress corrosion cracking, pitting, and crevice corrosion is essential. The PN 6 pressure rating (6 bar or approximately 87 psi) makes these flanges suitable for medium-pressure systems that demand both structural integrity and long service life. Types: Weld Neck Flange – Provides a robust, welded connection ideal for high-stress, high-temperature applications. Slip-On Flange – Offers ease of installation and is welded on both the inner and outer surfaces for a secure fit. Blind Flange – Used to close the end of a pipe system, ensuring leak-tight sealing. Threaded Flange – Allows for easy, non-welded connection to piping systems with threaded ends. Socket Weld Flange – Ideal for smaller-diameter high-pressure lines, offering smooth flow and strong connections. Grades & Chemical Composition: Duplex 2205 (UNS S31803/S32205): Chromium (Cr): 21.0 – 23.0% Nickel (Ni): 4.5 – 6.5% Molybdenum (Mo): 2.5 – 3.5% Manganese (Mn): ≤ 2.0% Silicon (Si): ≤ 1.0% Nitrogen (N): 0.14 – 0.20% Carbon (C): ≤ 0.03% Iron (Fe): Balance Key Features: Excellent resistance to pitting, crevice corrosion, and chloride-induced stress corrosion cracking. Superior strength compared to standard stainless steels PN 6 Rating: The PN 6 rating signifies a nominal pressure capacity of 6 bar (approximately 87 psi), making these flanges suitable for medium-pressure applications in both industrial and marine systems where enhanced corrosion resistance and mechanical strength are required. Features: Corrosion Resistance: Excellent resistance to a wide range of corrosive environments, especially chlorides and sulfides. High Strength: Duplex steel offers nearly twice the strength of conventional austenitic stainless steel, reducing wall thickness and weight. Stress Corrosion Resistance: Ideal for applications involving aggressive media and fluctuating temperatures. Longevity: Designed to offer extended service life with minimal maintenance in severe environments. Versatile Use: Applicable in offshore platforms, chemical plants, desalination systems, and high-performance piping networks . Cost-Efficient: Combines strength and corrosion resistance, often allowing for reduced material thickness and overall system weight. Ladhani Metal Corporation ensures that each DIN 2558 Duplex Flange is precision-machined and rigorously tested to meet or exceed international standards. These flanges offer a reliable, leak-proof solution for critical piping systems, balancing performance, safety, and long-term value.

DIN 2544 Super Duplex Flanges are flanges manufactured according to the DIN 2544 standard in Germany. These flanges are designed for use with super duplex stainless steel, a higher alloyed version of duplex stainless steel that combines the properties of ferritic and austenitic steels. Super duplex steel provides excellent strength, exceptional resistance to corrosion, particularly in aggressive environments, and is ideal for industries like chemical, oil and gas, petrochemical, and marine. Key Features: Material: Super duplex stainless steel (typically Grade 2507). Pressure Rating (PN 25): These flanges are rated for pressure class PN 25, designed to handle a pressure of 25 bar (2500 kPa). Corrosion Resistance: Super duplex steel offers superior resistance to pitting, crevice, and stress corrosion cracking, especially in chloride-rich environments. Strength: It has higher tensile strength and resistance to corrosion compared to standard duplex or austenitic stainless steels. Types of DIN 2544 Super Duplex Flanges: Weld Neck Flange (WN): Commonly used for high-pressure applications where strength and a leak-proof seal are critical. Slip-On Flange (SO): Easier to install, sliding over the pipe and welded both inside and outside. Blind Flange (BL): Used to close the ends of a pipeline or vessel. Threaded Flange (TH): Screwed onto the pipe without welding, allowing for easy removal. Socket Weld Flange (SW): For smaller pipe sizes, where the pipe is inserted into the socket and welded in place. Grades of Super Duplex Stainless Steel: Grade 2507 (Super Duplex): This grade provides exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking. It also offers high strength and good weldability. Chemical Composition of Grade 2507: Carbon (C): ≤ 0.03% Chromium (Cr): 24.0% - 26.0% Nickel (Ni): 6.0% - 8.0% Molybdenum (Mo): 3.0% - 5.0% Manganese (Mn): ≤ 1.2% Silicon (Si): ≤ 1.0% Phosphorus (P): ≤ 0.03% Sulfur (S): ≤ 0.02% Nitrogen (N): 0.20% - 0.30% Iron (Fe): Balance Pressure Rating (PN 25): PN 25 indicates the flange can withstand pressures up to 25 bar (or 2500 kPa). This rating is ideal for systems where moderate to high pressures are involved. Summary: DIN 2544 super duplex flanges are robust, corrosion-resistant components made from super duplex stainless steel, typically used in high-pressure, high-strength, and corrosive environments. They come in various types, including weld neck, slip-on, blind, threaded, and socket weld. The most common material is Grade 2507 super duplex stainless steel, known for its high strength and excellent corrosion resistance. PN 25 flanges are rated for pressures up to 25 bar. #flanges #din2544flanges #din2544superduplexflanges #superduplexflanges