DIN 2573 Carbon Steel Flanges PN 6 are robust, low-pressure plate flanges manufactured from high-quality carbon steel, specifically developed for general-purpose applications in non-corrosive to mildly corrosive environments. These flanges are designed in accordance with the DIN 2573 standard and are widely used in industrial piping systems where moderate strength and affordability are key requirements. Their simple design and ease of installation make them suitable for low-pressure fluid transfer, air, steam, and water systems across various industries. Ladhani Metal Corporation is a reputable manufacturer and exporter of carbon steel flanges, offering products that adhere to strict international quality and dimensional standards. The DIN 2573 plate flange configuration provides a secure, gasket-sealed connection, ensuring reliable performance even in basic utility and mechanical piping systems. Pressure Rating: • PN 6 (6 bar / 87 psi): Suitable for low-pressure applications involving air, water, oil, and non-aggressive fluids in industrial or mechanical systems. Flange Types: • Plate Flanges Flat flanges designed for easy bolting and gasket sealing, offering a reliable connection in low-pressure systems. • Flat Face (FF) Flanges Ideal for systems using cast iron or non-metallic components, these flanges provide uniform gasket compression and reduce the risk of flange distortion. • Slip-On Flanges These flanges slide over the pipe and are welded on both sides, ensuring secure attachment and proper alignment in basic fluid and gas systems. • Custom-Machined Flanges Available in a variety of sizes and finishes, custom carbon steel flanges can be tailored to meet project-specific requirements. Carbon Steel Grades and Composition: Carbon Steel A105 (Forged) Composition: • 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% • Iron (Fe): Balance Applications: A105 carbon steel is commonly used for flanges in ambient and elevated temperature service, especially in oil and gas, water transmission, and mechanical systems. Its good machinability and weldability make it a cost-effective choice for general use. Carbon Steel ST37 / S235JR Composition: • Carbon (C): 0.17 – 0.20% • Manganese (Mn): ≤ 1.4% • Phosphorus (P) and Sulfur (S): ≤ 0.045% • Iron (Fe): Balance Applications: Used in structural piping, water distribution, fire protection systems, and low-pressure industrial piping. ST37/S235JR flanges offer reliable performance in applications where corrosion is minimal and pressure requirements are moderate. Applications of DIN 2573 Carbon Steel Flanges: • Water Distribution Systems: Used in water pipelines, treatment plants, and municipal systems where pressure ratings are low and material strength is sufficient. • HVAC and Utility Systems: Ideal for heating, ventilation, and cooling systems that operate under low pressure with non-corrosive fluids. • Oil and Gas (Low Pressure Segments): Applicable in low-pressure oil pipelines, tank farms, and non-critical utility lines. • General Industrial Piping: Widely used in manufacturing facilities for compressed air, inert gas lines, and general fluid handling. • Fire Protection Systems: Carbon steel flanges are commonly used in fire sprinkler systems and standpipe installations. Key Features: • Manufactured according to DIN 2573 specifications • PN 6 pressure rating for low-pressure fluid and utility applications • Excellent strength, machinability, and weldability • Cost-effective solution for non-aggressive environments • Available in A105, ST37, S235JR, and other carbon steel grades • Suitable for mechanical systems, utilities, and water transmission • Custom face finishes, drilling, and dimensions available Conclusion: DIN 2573 Carbon Steel Flanges PN 6 from Ladhani Metal Corporation offer a durable and economical choice for a wide range of low-pressure applications. Combining structural strength with manufacturing precision, these flanges are ideal for utility piping, water distribution, and general industrial use. For detailed technical support, custom dimensions, or pricing inquiries, contact Ladhani Metal Corporation today. 📞 Contact Ladhani Metal Corporation Website: https://www.ladhanimetal.in/ https://www.ladhanimetal.com/ Email: info@ladhanimetals.com Request a Quote: Custom dimensions, materials, and finishes available upon request

DIN 2573 Duplex Flanges PN 6 are premium-quality, low-pressure plate flanges made from Duplex stainless steels, designed for applications requiring both excellent corrosion resistance and high mechanical strength. Manufactured in compliance with DIN 2573 standards, these flanges provide a reliable, cost-effective solution for demanding industrial environments, especially those exposed to chloride-bearing media, high-pressure fluids, and extreme temperatures. The balanced microstructure of Duplex alloys offers superior resistance to pitting, crevice corrosion, and stress corrosion cracking, making them ideal for use in challenging service conditions. Ladhani Metal Corporation is a reliable manufacturer and global supplier of Duplex steel flanges, offering products that meet stringent quality and international performance standards. The DIN 2573 flange configuration allows for easy assembly and a secure, leak-tight seal, even in low-pressure, corrosive service environments. Pressure Rating: • PN 6 (6 bar / 87 psi): Engineered for low-pressure applications where corrosion resistance, strength, and long-term durability are required in aggressive service conditions. Flange Types: • Plate Flanges Flat, circular flanges designed for bolted piping connections with gaskets, ensuring a leak-free joint suitable for low-pressure systems. • Flat Face (FF) Flanges These flanges offer uniform surface contact, ideal for use with flat gaskets and compatible materials like non-metallic components or cast iron. • Slip-On Flanges Designed to slip over the pipe and be welded into place, these flanges offer easy alignment and simplified installation for low to moderate pressure systems. • Custom-Machined Flanges Custom-fabricated to meet specific application needs, including unique dimensions, face types, and surface finishes, in various Duplex steel grades. Duplex Steel Grades and Composition: Duplex 2205 (UNS S32205 / S31803) Composition: • Chromium (Cr): 21.0 – 23.0% • Nickel (Ni): 4.5 – 6.5% • Molybdenum (Mo): 2.5 – 3.5% • Nitrogen (N): 0.14 – 0.20% • Manganese (Mn), Silicon (Si), Iron (Fe): Balance Applications: Duplex 2205 is ideal for environments with high chloride exposure, offering enhanced strength and corrosion resistance. Commonly used in offshore platforms, heat exchangers, pressure vessels, and seawater piping systems. Applications of DIN 2573 Duplex Flanges: • Chemical and Petrochemical Plants: Used in vessels, tanks, and piping that transport acidic and corrosive chemicals, Duplex flanges provide long service life and resistance to chemical attack. • Marine and Offshore Engineering: Ideal for seawater systems and subsea equipment due to their high corrosion resistance and excellent strength under pressure. • Oil and Gas Industry: Used in flowlines, risers, and subsea systems, these flanges offer mechanical durability and protection against corrosion in harsh hydrocarbon environments. • Power Generation: Duplex flanges are used in heat exchangers, condensers, and high-pressure steam lines, delivering stability under fluctuating temperature and pressure conditions. • Water Treatment and Desalination: Well-suited for brine handling and reverse osmosis systems, thanks to superior resistance to chloride-induced stress corrosion. Key Features: • Manufactured in accordance with DIN 2573 standard • Rated PN 6 for low-pressure systems requiring corrosion resistance • Exceptional performance in environments with chlorides and high mechanical stress • Available in Duplex 2205, Super Duplex 2507, and other Duplex grades • High strength combined with cost efficiency • Excellent fatigue resistance and weldability • Customization available for surface finishes, flange faces, and drilling patterns Conclusion: DIN 2573 Duplex Flanges PN 6 by Ladhani Metal Corporation offer a robust, corrosion-resistant solution for industries operating in aggressive chemical, marine, and high-pressure environments. Combining the mechanical strength of Duplex stainless steels with the reliable DIN 2573 design, these flanges ensure secure, long-lasting connections in critical systems. For detailed specifications, special dimensions, or technical consultations, contact Ladhani Metal Corporation today.

DIN 2573 Monel Flanges PN 6 are premium-quality, low-pressure plate flanges crafted from Monel alloys, specifically engineered for systems that operate in highly corrosive and aggressive environments. Manufactured in accordance with DIN 2573 standards, these flanges offer excellent resistance to seawater, acids, and high-temperature conditions, making them an ideal choice for industries such as marine engineering, chemical processing, oil and gas, and power generation. The exceptional properties of Monel alloys ensure durability and reliability in applications requiring strong resistance to pitting, crevice corrosion, and stress corrosion cracking. Ladhani Metal Corporation is a trusted manufacturer and global supplier of Monel alloy flanges, delivering high-quality products that meet rigorous international standards. The DIN 2573 flange design ensures easy installation and provides a secure, leak-free connection, even in low-pressure, harsh environments. Pressure Rating: • PN 6 (6 bar / 87 psi): Designed for low-pressure applications in corrosive and high-temperature environments where Monel’s strength and resistance to corrosion are critical for long-term performance. Flange Types: • Plate Flanges Flat flanges ideal for bolted connections in piping systems where gasket sealing is required, providing secure, leak-free operation in low-pressure systems. • Flat Face (FF) Flanges Used with flat gaskets and mating surfaces, ensuring uniform contact and load distribution, particularly when joining with non-metallic components or cast iron systems. • Slip-On Flanges These flanges slip over the pipe, providing easy alignment and easy-to-weld connections, ideal for low-pressure applications with moderate pressure fluctuations. • Custom-Machined Flanges Tailored to meet specific dimensional and material requirements, available in various sizes, grades, and face finishes to suit the needs of custom applications. Monel Grades and Composition: Monel 400 (UNS N04400) Composition: • Nickel (Ni): 63.0 – 70.0% • Copper (Cu): 28.0 – 34.0% • Iron (Fe): ≤ 2.5% • Manganese (Mn), Silicon (Si), Carbon (C): Trace amounts Applications: Monel 400 is widely used in marine environments, chemical processing, and heat exchangers, where it is subjected to both high temperatures and exposure to saltwater or acids. Its superior resistance to corrosion and oxidation makes it a preferred material in demanding applications like pumps, valves, and marine piping systems. Monel K-500 (UNS N05500) Composition: • Nickel (Ni): 63.0 – 70.0% • Copper (Cu): 27.0 – 33.0% • Aluminum (Al): 2.3 – 3.2% • Titanium (Ti): 0.35 – 0.85% • Iron (Fe): ≤ 2.5% Applications: Monel K-500 offers higher strength and hardness compared to Monel 400, making it suitable for applications in oil and gas extraction, marine industries, and aerospace systems, where both corrosion resistance and high mechanical properties are required. Applications of DIN 2573 Monel Flanges: • Chemical and Petrochemical Plants: Monel flanges are ideal for use in chemical reactors, exchangers, and pipelines handling aggressive chemicals like sulfuric acid, hydrochloric acid, and caustics. • Marine and Offshore Engineering: Highly resistant to seawater corrosion, Monel flanges are used extensively in marine piping systems, offshore oil rigs, and shipbuilding applications where exposure to saltwater and harsh weather conditions is frequent. • Oil and Gas Industry: Monel flanges are often used in production platforms, refineries, and pipelines exposed to brine and acidic substances, offering both strength and resistance to corrosion under high-stress conditions. • Power Generation: Used in systems handling high-temperature steam and corrosive environments, Monel flanges provide reliable service for high-performance power plant components. • Desalination and Water Treatment: With their corrosion resistance to saline environments, Monel flanges are also ideal for seawater desalination plants and water treatment facilities. Key Features: • Manufactured according to DIN 2573 standards • Rated for PN 6 low-pressure systems, with exceptional resistance to corrosion • Outstanding performance in highly corrosive, high-temperature environments • Available in Monel 400, Monel K-500, and other Monel alloys • High strength-to-weight ratio for reliable long-term performance • Suitable for marine, offshore, chemical, and power generation applications • Available with custom drilling, surface finishes, and flange faces Conclusion: DIN 2573 Monel Flanges PN 6 from Ladhani Metal Corporation provide unmatched durability, corrosion resistance, and performance in low-pressure applications exposed to challenging chemical, thermal, and environmental conditions. For custom dimensions, material selections, or technical support, contact Ladhani Metal Corporation today.

DIN 2573 Inconel Flanges PN 6 are precision-manufactured low-pressure plate flanges made from high-performance Inconel alloys, specifically engineered for highly corrosive and thermally challenging environments. Compliant with DIN 2573 standards, these flanges are ideally suited for low-pressure applications that demand exceptional resistance to oxidation, acids, and high-temperature stress. Inconel’s unique properties make these flanges suitable for aggressive processing systems in industries such as chemical manufacturing, petrochemicals, marine, power generation, and aerospace. Ladhani Metal Corporation is a recognized manufacturer and global supplier of Inconel alloy flanges, delivering premium-quality components built to international specifications. The DIN 2573 plate flange design ensures straightforward installation while providing excellent sealing reliability, especially in environments where conventional materials may degrade rapidly. Pressure Rating: • PN 6 (6 bar / 87 psi): Designed for low-pressure systems that operate under harsh chemical, thermal, or oxidative conditions, providing long-term durability and consistent performance. Flange Types: • Plate Flanges Flat-ring type flanges used in systems where welding and bolting are required, with gasket sealing for low-pressure flow lines. • Flat Face (FF) Flanges Used with flat gaskets and mating surfaces, especially in brittle or cast systems where full contact and load distribution are critical. • Slip-On Flanges Ease of installation and alignment with the pipe make these ideal for maintenance-friendly or modular low-pressure piping. • Custom-Machined Flanges Precision-machined to customer-defined sizes, Inconel grades, drilling standards, and flange face finishes. Inconel Grades and Composition: 1. Inconel 600 (UNS N06600) Composition: • Nickel (Ni): ≥ 72% • Chromium (Cr): 14.0 – 17.0% • Iron (Fe): 6.0 – 10.0% • Manganese (Mn), Silicon (Si), Carbon (C): Trace amounts Applications: Commonly used in heat exchangers, furnace components, and food processing equipment exposed to high temperatures and oxidizing chemicals. 2. Inconel 625 (UNS N06625) Composition: • Nickel (Ni): ≥ 58.0% • Chromium (Cr): 20.0 – 23.0% • Molybdenum (Mo): 8.0 – 10.0% • Niobium (Nb): 3.15 – 4.15% Applications: Ideal for seawater equipment, chemical processing plants, aerospace exhaust systems, and nuclear reactors due to excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. 3. Inconel 718 (UNS N07718) Composition: • Nickel (Ni): 50.0 – 55.0% • Chromium (Cr): 17.0 – 21.0% • Iron (Fe): Balance • Molybdenum (Mo): 2.8 – 3.3% • Niobium (Nb): 4.75 – 5.5% • Titanium (Ti): 0.65 – 1.15% • Aluminum (Al): 0.2 – 0.8% Applications: Primarily used in aerospace, gas turbines, and cryogenic systems due to its exceptional high-temperature strength, oxidation resistance, and good weldability. It is ideal for use in extreme thermal environments, such as turbine engines and high-pressure systems. Applications of DIN 2573 Inconel Flanges: • Chemical and Acid Processing Plants: Withstand highly corrosive chemicals such as nitric, hydrochloric, and sulfuric acid under thermal cycling. • Power Generation and Heat Exchangers: Resist oxidation and high-temperature fatigue in boiler feed systems, turbine piping, and condensate lines. • Marine and Offshore Installations: Provide excellent resistance to seawater, salt spray, and chloride-induced stress corrosion cracking. • Aerospace and Jet Engine Systems: Used in fuel, exhaust, and cooling systems where heat and corrosion resistance are critical. • Environmental and Waste Treatment Facilities: Endure aggressive chemical waste, thermal gradients, and acidic sludges in scrubbing and exhaust ducting systems. Key Features: • Designed according to DIN 2573 standards • PN 6 rating for low-pressure service with high chemical and thermal loads • Outstanding resistance to acids, chlorides, oxidation, and high temperatures • Available in Inconel 600, 625, 718, and other high-nickel alloys • Low maintenance and long service life in corrosive environments • Machinable for customized face types and bolt hole configurations Conclusion: DIN 2573 Inconel Flanges PN 6 from Ladhani Metal Corporation are engineered for performance in chemically aggressive and thermally intense low-pressure systems. With superior corrosion and heat resistance, these flanges are a critical component in applications where traditional materials fail. For specific alloy recommendations, custom dimensions, or technical support, contact Ladhani Metal Corporation today.

DIN 2573 Stainless Steel Flanges PN 6 are precision-manufactured flat flanges made from high-grade stainless steel, designed for low-pressure applications across a broad range of industrial sectors. Compliant with DIN 2573 standards, these flanges provide excellent corrosion resistance, mechanical reliability, and compatibility with standard piping systems. They are commonly used in non-critical, low-pressure environments in industries such as water treatment, HVAC, food processing, and general utility piping systems. Ladhani Metal Corporation is a reputable manufacturer and exporter of stainless steel flanges, offering components that adhere to international quality benchmarks. The flat flange design simplifies assembly and disassembly, making these flanges a practical choice for systems requiring easy maintenance and reliable sealing at lower pressure ranges. Pressure Rating: • PN 6 (6 bar / 87 psi): Engineered for low-pressure systems where moderate sealing performance and corrosion resistance are essential. Flange Types: • Plate Flanges Used in low-pressure piping systems for simple bolted connections with gaskets. • Flat Face (FF) Flanges Ideal for use with cast iron equipment or non-metallic gaskets to ensure uniform surface contact. • Slip-On Flanges Designed for ease of installation by sliding over the pipe and welding both sides for moderate sealing. • Custom-Machined Flanges Available in specific dimensions and stainless steel grades as per customer specifications and operational requirements. Stainless Steel Grades and Composition: 1. 304 (Austenitic Stainless Steel) Composition: • Carbon (C): ≤ 0.08% • Manganese (Mn): ≤ 2.00% • Phosphorus (P): ≤ 0.045% • Sulfur (S): ≤ 0.030% • Silicon (Si): ≤ 1.00% • Chromium (Cr): 18.0 – 20.0% • Nickel (Ni): 8.0 – 11.0% Applications: Used in water supply lines, food-grade piping, and low-pressure process lines due to its hygienic properties and corrosion resistance. 2. 316 (Molybdenum-Alloyed Stainless Steel) Composition: • Carbon (C): ≤ 0.08% • Manganese (Mn): ≤ 2.00% • Phosphorus (P): ≤ 0.045% • Sulfur (S): ≤ 0.030% • Silicon (Si): ≤ 1.00% • Chromium (Cr): 16.0 – 18.0% • Nickel (Ni): 10.0 – 14.0% • Molybdenum (Mo): 2.0 – 3.0% Applications: Suited for mildly corrosive environments including water filtration systems and food-grade tanks. 3. 321 (Titanium-Stabilized Stainless Steel) Composition: • Carbon (C): ≤ 0.08% • Manganese (Mn): ≤ 2.00% • Phosphorus (P): ≤ 0.045% • Sulfur (S): ≤ 0.030% • Silicon (Si): ≤ 1.00% • Chromium (Cr): 17.0 – 19.0% • Nickel (Ni): 9.0 – 12.0% • Titanium (Ti): ≥ 5x(C+N) Applications: Applicable in moderately high temperatures or where intergranular corrosion resistance is important, such as thermal pipelines and heating systems. Applications of DIN 2573 Stainless Steel Flanges: • Water Distribution and Treatment Systems: Used in potable and waste water systems, ensuring non-reactive and rust-resistant performance. • HVAC and Building Installations: Employed in air ducts, chilled water lines, and other HVAC components where low-pressure performance is sufficient. • Food and Beverage Processing: Chosen for hygienic piping setups in non-pressurized fluid transfer applications. • Industrial Utility Lines: Integrated into auxiliary piping systems for lubricants, cooling water, and drainage. • Agricultural and Irrigation Systems: Used in low-pressure pumping and irrigation lines due to their corrosion resistance and ease of installation. Key Features: • Manufactured in compliance with DIN 2573 standard • PN 6 pressure rating suitable for non-critical systems • Excellent corrosion resistance with hygienic surface options • Flat and slip-on configurations for simplified assembly • Available in 304, 316, 321, and other stainless steel grades Conclusion: DIN 2573 Stainless Steel Flanges PN 6 by Ladhani Metal Corporation offer a cost-effective and reliable solution for low-pressure applications. Their corrosion-resistant material, ease of installation, and compliance with international standards make them ideal for various general-purpose industrial systems. For tailored configurations, specific material grades, or technical support, contact Ladhani Metal Corporation.

DIN 2527 SS 321 Blind Flanges are specialized components used in industrial piping systems to close off the ends of pipes or equipment where no further connection is necessary. A blind flange is a solid, flat disc without a central bore, specifically designed to seal the open end of a pipe or a vessel. The DIN 2527 standard, developed by the German Institute for Standardization, defines the specifications for these flanges, ensuring that they meet high standards for dimensional accuracy, pressure tolerance, and mechanical strength. The SS 321 material, used for the production of these blind flanges, is an austenitic stainless steel known for its excellent resistance to high-temperature oxidation, corrosion, and scaling. The addition of titanium to this steel stabilizes its structure, making it suitable for environments where temperatures fluctuate or are consistently high. As a result, SS 321 blind flanges are frequently used in industries where both strength and resistance to harsh environmental conditions are paramount, including the chemical, petrochemical, aerospace, and power generation industries. By utilizing DIN 2527 SS 321 Blind Flanges, companies can ensure secure, long-lasting, and efficient closures for piping systems under challenging operational conditions. These flanges are essential in maintaining the integrity of systems exposed to elevated pressures and corrosive substances, ensuring the safe containment of fluids and gases. key Features of DIN 2527 SS 321 Blind Flanges: Material Composition of SS 321: Carbon (C): ≤ 0.08% Chromium (Cr): 17.0 - 19.0% Nickel (Ni): 9.0 - 12.0% Titanium (Ti): 5 times the carbon content, generally around 0.60% minimum, to prevent carbide precipitation. Manganese (Mn): 2.00% max Silicon (Si): 1.00% max Phosphorus (P): 0.045% max Sulfur (S): 0.030% max Pressure and Temperature Resistance: Operating Temperature: SS 321 can perform well in high-temperature environments, up to 900°C (1650°F) intermittently and up to around 700°C (1292°F) for continuous service. Design and Dimensions of DIN 2527 Blind Flanges: Pressure Ratings: The design of a DIN 2527 blind flange is primarily based on pressure class ratings (such as PN6, PN10, PN16, etc.), which denote the maximum pressure the flange can safely withstand. Bolt Holes: The number and size of bolt holes for DIN 2527 blind flanges are specified according to the flange's pressure class and size. The bolt pattern is designed to ensure a tight seal and accommodate appropriate bolt sizes for a given pressure class. Thickness: The thickness of a blind flange can vary depending on the pressure rating and size, with thicker flanges being required for higher pressure applications. Nominal Diameter: Blind flanges are available in various nominal pipe diameters (DN) ranging from DN10 (1/2 inch) up to DN600 (24 inches) or more. Types of DIN 2527 SS 321 Blind Flanges: Standard Blind Flange (Type A): A solid, circular flange used to seal the end of a pipe or vessel. Common for general applications. Flat-Faced Blind Flange: Has a flat sealing surface, ideal for low-pressure systems and tight sealing. Raised Face Blind Flange: Features a raised surface around the center for better sealing in higher pressure systems. Ring-Type Joint (RTJ) Blind Flange: Has a groove for an RTJ gasket, designed for high-pressure applications, often used in the oil and gas industry. Long Weld Neck Blind Flange: Has an extended neck for welding, providing additional strength and used in high-pressure or stressed systems.

A DIN 2527 AISI 4140 blind flange is a specialized type of blind flange made from AISI 4140 alloy steel, adhering to the DIN 2527 German standard. Blind flanges are crucial components in piping systems, used to seal the end of a pipe, vessel, or valve to isolate it or stop the flow of fluids. The AISI 4140 material used for this specific flange is a high-strength alloy steel known for its robustness and excellent mechanical properties, making it ideal for high-stress applications. AISI 4140, a chromium-molybdenum alloy steel, is renowned for its excellent mechanical properties, including high tensile strength, hardness, and resistance to wear. It is often used in heavy-duty applications such as in the automotive, aerospace, and oil & gas industries, where the need for robust materials is crucial. The use of AISI 4140 steel in a DIN 2527 blind flange ensures that the flange can handle high pressures, temperatures, and mechanical stresses without compromising on performance or safety. Material: AISI 4140 Alloy Steel Composition: AISI 4140 is a medium-carbon steel alloy that contains chromium (Cr) and molybdenum (Mo) as its primary alloying elements. These elements improve the steel's hardness, strength, and wear resistance. Key Properties: Strength: High tensile strength and yield strength, making it capable of withstanding high loads and stress in high-pressure applications. Toughness: Offers excellent toughness and impact resistance, making it suitable for challenging environments where forces are dynamic. Hardness: Can be heat-treated to achieve high hardness levels, providing resistance to wear and abrasion. Corrosion Resistance: While AISI 4140 is not as corrosion-resistant as stainless steel, it can still perform well in less corrosive environments with proper surface treatment (e.g., coatings or galvanizing). Design and Dimensions (DIN 2527) Shape: The blind flange is a flat, circular plate with no central hole. Its purpose is to seal the end of a pipe or vessel, effectively "closing" the pipeline or system. Bolt Holes: The flange has evenly spaced bolt holes around the perimeter, allowing it to be bolted securely to the corresponding flange or fitting in the system. These holes align with the bolt pattern of other components. Thickness: The flange thickness varies depending on the size, pressure class, and specific application requirements. It is designed to withstand internal pressure while providing a reliable seal. Pressure Rating: Flanges are typically rated according to pressure classes such as PN 6, PN 10, PN 16, PN 25, etc., indicating the maximum pressure the flange can safely handle without failure. Applications Pipeline Sealing: The primary function of a blind flange is to seal the open end of a pipeline, preventing the passage of fluids, gases, or other materials through the system. System Isolation: Blind flanges are used to isolate a section of the system for maintenance or repairs, allowing for safe disconnection of parts while maintaining system integrity. Pressure Containment: AISI 4140 blind flanges are also used in applications where maintaining pressure within a system is critical. The high strength and durability of AISI 4140 make it suitable for use in high-pressure environments. Types of Blind Flanges in DIN 2527 Raised Face (RF): The flange surface has a small raised area around the bolt circle to improve sealing when mated with a gasket. Flat Face (FF): The flange surface is level with the flange body, typically used with softer gaskets to create a seal. Ring Type Joint (RTJ): The flange may feature a groove to accommodate a metal ring gasket for high-pressure applications, providing a secure, reliable seal.

A DIN 2527 AISI 8630 blind flange is a specialized type of blind flange made from AISI 8630 alloy steel, designed according to the DIN 2527 German standard. Blind flanges are essential components in industrial piping systems, used to seal the end of a pipe, vessel, or valve to isolate it or prevent the flow of fluids. The AISI 8630 material used for this specific flange provides excellent strength, toughness, and wear resistance, making it ideal for applications in high-stress environments. Material: AISI 8630 Alloy Steel AISI 8630 is a low-alloy steel, enriched with nickel, chromium, and molybdenum for enhanced mechanical properties. It is known for its strength, toughness, and resistance to wear, making it suitable for heavy-duty applications, particularly in industries where components are subjected to high stress and pressure. Composition of AISI 8630: Carbon (C): 0.30% – 0.35% Provides strength and hardness. Chromium (Cr): 0.80% – 1.10% Improves hardness, wear resistance, and high-temperature strength. Molybdenum (Mo): 0.15% – 0.25% Enhances hardenability and resistance to wear. Nickel (Ni): 0.80% – 1.20% Adds toughness, especially at lower temperatures. Other elements: Small amounts of manganese (Mn), silicon (Si), and phosphorus (P), which improve the overall material quality and processing properties. Design and Dimensions (DIN 2527) Shape: The blind flange is a flat, circular plate with no central hole, designed to seal the open end of a pipe, valve, or vessel. Bolt Holes: The flange features evenly spaced bolt holes around the perimeter, which allow it to be securely attached to a matching flange or component. These holes align with the bolt pattern of the corresponding system components. Thickness: The thickness of the flange varies depending on the size and pressure rating, ensuring it can withstand internal pressure and provide a reliable seal. Pressure Rating: Pressure ratings are typically defined using classes such as PN 6, PN 10, PN 16, PN 25, etc., which represent the maximum pressure the flange can safely withstand without failure. Applications of DIN 2527 AISI 8630 Blind Flange Pipeline Sealing: The primary function of the blind flange is to seal the end of a pipeline, effectively preventing the passage of fluids, gases, or other materials. System Isolation: It is used to isolate sections of the pipeline for maintenance or repairs, allowing safe disconnection without compromising the integrity of the system. Pressure Containment: The high strength and durability of AISI 8630 make it suitable for applications where maintaining pressure within the system is critical, ensuring the flange can handle high-pressure environments. Types of Blind Flanges in DIN 2527 Blind flanges conforming to DIN 2527 can be found in different face types and sealing methods, including: Raised Face (RF): The flange surface has a slight raised area around the bolt circle, improving the seal when mated with a gasket. Flat Face (FF): The surface is level with the flange body and typically used with softer gaskets to create a seal. Ring Type Joint (RTJ): This type has a groove to accommodate a metal ring gasket, providing a secure seal in high-pressure applications. Conclusion A DIN 2527 AISI 8630 blind flange is a high-strength, durable sealing component designed for high-pressure and high-stress environments. Made from AISI 8630 alloy steel, it offers excellent mechanical properties such as strength, toughness, and wear resistance, making it ideal for use in industrial systems that require reliable seals under heavy loads and elevated temperatures.

Super Duplex Stainless Steel (SDSS) is an advanced type of Duplex Stainless Steel that combines the benefits of both austenitic and ferritic structures but with higher levels of chromium, nickel, and molybdenum, along with additional nitrogen content. This makes Super Duplex Stainless Steel (such as Super Duplex 2507) an ideal material for extremely demanding environments, particularly those exposed to harsh corrosive conditions. Material: Super Duplex Stainless Steel Superior Corrosion Resistance: Super Duplex stainless steels (e.g., 2507) offer exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC), especially in environments with high chloride exposure. This makes them perfect for use in seawater, chemical processing, and offshore oil and gas applications. Strength: Super Duplex steels provide significantly higher tensile strength than standard Duplex and austenitic grades (such as 304 and 316), making them ideal for high-pressure and heavy-duty applications. Super Duplex steel has roughly twice the strength of 304 or 316 stainless steels. Temperature Resistance: Super Duplex stainless steels maintain good performance at moderate to high temperatures, typically performing well up to around 300°C (572°F). They can endure high-temperature environments but are not suitable for extreme high-temperature applications (e.g., above 400°C). Resistance to Chloride Stress Corrosion Cracking (SCC): Super Duplex stainless steels are particularly resistant to chloride-induced stress corrosion cracking, which is a significant advantage in industries that face exposure to seawater, brine, or other chloride-rich environments. Common Types of DIN 2527 Super Duplex Stainless Steel Blind Flanges: 1.4410 (F53): Offers excellent resistance to corrosion, high strength, and toughness, widely used in oil & gas, marine, and chemical industries. 1.4501 (F55): Higher alloy content, offering superior resistance to pitting and stress corrosion cracking, often used in subsea and offshore applications. 1.4412 (F60): Known for resistance to extreme environments like offshore and petrochemical industries. Design and Dimensions Shape: DIN 2527 blind flanges made from Super Duplex Stainless Steel follow the same general design as other flanges: flat, round plates with no central hole, used to seal the ends of pipes or pressure vessels. Bolt Holes: These flanges are equipped with bolt holes for bolting to other flanged components, ensuring a secure connection. The number and size of the bolt holes are determined by the flange's diameter and the pressure class. Thickness: The flange thickness varies depending on the pressure rating (e.g., PN 6, PN 10, PN 16, PN 25). Thicker flanges are designed to handle higher pressures, ensuring a secure seal and reliable performance. Pressure Rating: Super Duplex stainless steel blind flanges are designed for high-pressure environments. Due to their strength and resistance to corrosion, they are typically used in PN 10, PN 16, and PN 25 pressure ratings, although they can be designed for even higher pressure ratings depending on the application. Types of Blind Flanges in DIN 2527 (Super Duplex) Raised Face (RF): The raised face provides a contact area for a gasket, enhancing the sealing performance. This type of flange is commonly used with a gasket to improve sealing, particularly in systems that operate under high pressure. Flat Face (FF): The face of the flange is level with the surface and is often paired with a soft gasket to provide a tight seal. This design is typically used for low-pressure applications where sealing is not as critical. Ring Type Joint (RTJ): This type of flange features a groove for a metallic gasket, providing a secure seal under high pressure and harsh conditions. RTJ flanges are typically used in offshore oil and gas or chemical plants, where extreme conditions require highly durable sealing methods.