'system pressure containment'

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 2627 Monel flanges PN 400 are high-performance blind flanges crafted for ultra-high-pressure systems where superior corrosion resistance, durability, and structural integrity are critical. Compliant with the DIN 2627 standard, these flanges are specifically designed to close off the ends of pipelines in extreme service environments, including highly corrosive marine atmospheres, acidic and alkaline chemical processes, and high-temperature applications. With a PN 400 rating (400 bar / 5800 psi), these flanges ensure leak-free operation under intense pressure and challenging conditions. Made from Monel alloys—primarily Monel 400 and Monel K500—these flanges are widely utilized in offshore oil rigs, naval applications, chemical processing, and power generation systems. Ladhani Metal Corporation is a global leader in manufacturing and exporting DIN-standard Monel flanges, ensuring compliance with international requirements for pressure containment, corrosion resistance, and metallurgical consistency. Pressure Rating: • PN 400 (400 bar / 5800 psi): Engineered for extremely high-pressure piping systems in critical and hazardous service environments where reliable sealing is essential. Flange Type: • Blind Flanges Solid, non-bored flanges used to seal piping systems or terminate flow paths. Ideal for pressure testing, system isolation, and future expansion. • Flat Face (FF) Flanges Designed with a flat sealing surface for use with full-face gaskets and flat mating components. Ensures uniform load distribution and optimal sealing performance. Monel Grades and Composition: Monel 400 (UNS N04400) • Nickel (Ni): ≥ 63% • Copper (Cu): 28 – 34% • Iron (Fe): ≤ 2.5% • Manganese (Mn): ≤ 2% • Silicon (Si): ≤ 0.5% • Carbon (C): ≤ 0.3% Applications: Outstanding resistance to seawater, hydrofluoric acid, alkalis, and other corrosive media. Widely used in marine equipment, chemical processing, and heat exchangers. Monel K500 (UNS N05500) • Nickel (Ni): ≥ 63% • Copper (Cu): 27 – 33% • Aluminum (Al): 2.3 – 3.15% • Titanium (Ti): 0.35 – 0.85% • Iron (Fe): ≤ 2% • Carbon (C): ≤ 0.25% Applications: Combines the corrosion resistance of Monel 400 with enhanced strength and hardness. Suitable for high-stress components like shafts, valve parts, and pump systems in corrosive environments. Applications of DIN 2627 Monel Flanges PN 400: • Offshore Oil and Gas Platforms Ideal for subsea systems exposed to high salinity, pressure, and corrosive gases such as hydrogen sulfide. • Marine and Shipbuilding Preferred in piping systems, ballast lines, and propulsion equipment exposed to seawater and biofouling agents. • Chemical and Petrochemical Plants Used in process systems handling caustic solutions, hydrofluoric acid, and strong alkalis at elevated pressures. • Heat Exchangers and Condensers Excellent thermal conductivity and corrosion resistance make Monel suitable for harsh thermal cycling conditions. • Nuclear and Power Generation Resilient in high-radiation and chemical-laden environments found in cooling systems and high-pressure steam lines. • Aerospace and Defense Used in fuel and hydraulic lines where strength and resistance to high-pressure corrosive media are critical. Key Features: • Manufactured according to DIN 2627 standards • Rated for PN 400 high-pressure operations • Blind flange design ensures reliable sealing and flow isolation • Flat face configuration for full-face gasket compatibility • Available in Monel 400 and Monel K500 grades • Exceptional resistance to corrosion by seawater, acids, and alkalis • High strength and durability in extreme service environments • Widely used in marine, chemical, nuclear, oil and gas, and aerospace industries • Custom configurations, sizes, and material options available on request Conclusion: DIN 2627 Monel Flanges PN 400 from Ladhani Metal Corporation are engineered for mission-critical applications where long-term durability, corrosion resistance, and high-pressure performance are mandatory. Whether you need protection against seawater, alkalis, or aggressive process chemicals, these flanges provide robust, leak-free service in the harshest operating environments. Contact Ladhani Metal Corporation for expert guidance, custom engineering, and dependable supply of Monel flange solutions tailored to your specific needs

DIN 2627 Inconel flanges PN 400 are premium-grade blind flanges engineered for ultra-high-pressure applications requiring exceptional corrosion resistance, heat resistance, and mechanical strength. Manufactured in accordance with the DIN 2627 standard, these flanges are designed to seal off the ends of piping systems, especially in extreme environments involving high temperatures, aggressive chemicals, or seawater exposure. The PN 400 rating (400 bar / 5800 psi) ensures performance under intense pressure conditions. Produced using high-performance nickel-based alloys such as Inconel 600, Inconel 625, and Inconel 718, these flanges are used extensively in aerospace, chemical processing, offshore oil and gas, marine, and power generation industries. Ladhani Metal Corporation is a leading global manufacturer and exporter of Inconel flanges, supplying components that conform to international standards for material integrity, pressure containment, and corrosion resistance. Pressure Rating: • PN 400 (400 bar / 5800 psi): Suitable for high-pressure piping systems in critical applications where maximum sealing and durability are essential. Flange Type: • Blind Flanges Solid, non-bored flanges used to isolate piping systems or terminate flow. Ideal for pressure testing, maintenance, and future pipeline expansions. • Flat Face (FF) Flanges Designed with a flat sealing surface for use with full-face gaskets and flat mating components, ensuring even load distribution and effective sealing. Inconel Grades and Composition: Inconel 600 (UNS N06600) • Nickel (Ni): ≥ 72% • Chromium (Cr): 14 – 17% • Iron (Fe): 6 – 10% • Manganese (Mn): ≤ 1% • Silicon (Si): ≤ 0.5% • Carbon (C): ≤ 0.15% • Sulfur (S): ≤ 0.015% Applications: Excellent resistance to oxidation, carburization, and chloride-ion stress corrosion cracking. Used in furnace components, heat exchangers, and food processing equipment. Inconel 625 (UNS N06625) • Nickel (Ni): ≥ 58% • Chromium (Cr): 20 – 23% • Molybdenum (Mo): 8 – 10% • Niobium + Tantalum (Nb + Ta): 3.15 – 4.15% • Iron (Fe): ≤ 5% • Carbon (C): ≤ 0.10% • Manganese (Mn): ≤ 0.5% • Silicon (Si): ≤ 0.5% Applications: Outstanding corrosion and fatigue resistance in seawater and chemical environments. Common in marine, aerospace, and offshore industries. Inconel 718 (UNS N07718) • Nickel (Ni): 50 – 55% • Chromium (Cr): 17 – 21% • Iron (Fe): Balance • Niobium + Tantalum (Nb + Ta): 4.75 – 5.5% • Molybdenum (Mo): 2.8 – 3.3% • Titanium (Ti): 0.65 – 1.15% • Aluminum (Al): 0.2 – 0.8% Applications: High strength and oxidation resistance up to 700°C. Used in jet engines, gas turbines, and high-pressure valves. Applications of DIN 2627 Inconel Flanges PN 400: • Offshore Oil and Gas Platforms Withstands high-pressure, high-salinity, and corrosive environments in subsea pipelines and risers. • Chemical Processing Plants Ideal for systems handling oxidizers, acids, solvents, and reactive compounds at high temperatures and pressures. • Aerospace and Jet Propulsion Used in fuel systems, hydraulic lines, and turbine enclosures where extreme heat and stress are common. • Nuclear and Power Generation Suited for high-pressure reactor lines and heat exchanger systems exposed to radiation, heat, and corrosive media. • Desalination and Seawater Systems Highly resistant to chloride-induced pitting and crevice corrosion. • High-Temperature and Reactive Media Systems Perfect for isolating systems exposed to thermal cycling and chemical attack. Key Features: • Manufactured to DIN 2627 standards • Rated for PN 400 ultra-high-pressure systems • Blind flange design for sealing pipe ends or testing access • Flat face design for even gasket compression and sealing • Available in Inconel 600, 625, and 718 • Excellent resistance to oxidation, acids, chlorides, and high heat • High mechanical strength and fatigue resistance • Used in critical industries including aerospace, marine, oil and gas, and chemical processing • Custom sizes, alloys, pressure ratings, and surface finishes available on request Conclusion: DIN 2627 Inconel Flanges PN 400 from Ladhani Metal Corporation offer exceptional performance and reliability in the most demanding service conditions. Whether your system involves corrosive chemicals, high-pressure steam, or marine exposure, these blind flanges deliver secure sealing, longevity, and safety. Contact Ladhani Metal Corporation for material selection, technical support, or custom solutions tailored to your high-performance application.

DIN 2576 Super Duplex Flanges PN 10 are high-performance, slip-on flanges manufactured from super duplex stainless steel, designed for piping systems operating under low to medium pressures. Produced in accordance with the DIN 2576 standard, these flanges offer exceptional mechanical strength combined with superior corrosion resistance, making them ideal for highly aggressive and chloride-laden environments. The slip-on design facilitates easy placement over the pipe and enables secure welding, ensuring precise alignment and a reliable seal across various industrial applications. Ladhani Metal Corporation is a trusted manufacturer and global supplier of super duplex steel flanges, providing products that meet stringent international standards in terms of dimensions, metallurgy, and performance. DIN 2576 super duplex flanges are especially valued in industries where resistance to pitting, crevice corrosion, and stress corrosion cracking is critical, including marine, chemical, and wastewater systems. Pressure Rating: • PN 10 (10 bar / 145 psi): Designed for moderate-pressure systems demanding long-term durability in corrosive environments. Flange Types: • Slip-On Flanges These flanges slide over the pipe and are welded on both sides, offering ease of installation and secure mechanical performance. • Flat Face (FF) Flanges Designed for use with flat gaskets and mating surfaces, these flanges are ideal for applications involving non-metallic or cast components. Super Duplex Stainless Steel Grades and Composition: Super Duplex 2507 (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% • Iron (Fe): Balance Applications: Super Duplex 2507 delivers superior yield strength and corrosion resistance, particularly in extreme environments. It is commonly used in subsea equipment, chemical containment, high-pressure systems, and offshore platforms exposed to seawater and chlorides. Applications of DIN 2576 Super Duplex Flanges: • Offshore and Marine Engineering Well-suited for seawater cooling systems, risers, and structural elements exposed to marine conditions. • Chemical and Petrochemical Industries Ideal for conveying highly corrosive fluids, acids, and chlorides in reactors and pipelines. • Water Treatment and Desalination Applied in reverse osmosis systems, brine piping, and high-salinity water circuits requiring enhanced corrosion resistance. • Pulp and Paper Industry Offers protection against aggressive bleaching agents and chemical fluids under pressurized conditions. • Oil and Gas Used in critical systems like separators, manifolds, and sour gas applications. • Structural and Pressure Vessel Fabrication Preferred for tanks and pressure vessels operating under corrosive and mechanical stress. Key Features: • Fully compliant with DIN 2576 standard specifications • PN 10 pressure rating for use in moderate-pressure applications • Superior resistance to chloride-induced pitting, crevice corrosion, and stress corrosion cracking • High mechanical strength reduces material thickness and overall system weight • Manufactured using Super Duplex 2507 and other super duplex alloys • Slip-on design ensures straightforward alignment and welding • Flat face variants suitable for a wide range of gaskets and connection types • Widely used across marine, chemical, oil and gas, and water treatment sectors • Custom sizes, face configurations, and finishes available on request Conclusion: DIN 2576 Super Duplex Flanges PN 10 by Ladhani Metal Corporation offer exceptional strength and corrosion resistance for highly demanding industrial environments. Available in Super Duplex 2507 and other super duplex grades, these flanges ensure reliable performance in systems facing high salinity, pressure, and temperature. For technical guidance, grade selection, or customized project solutions, reach out to Ladhani Metal Corporation today.

DIN 2545 is a German standard for stainless steel flanges, designed for use in piping systems requiring durability, corrosion resistance, and strong mechanical properties. These flanges are commonly used in industries like chemical, petrochemical, food processing, and more. They come in various sizes and configurations for secure and leak-proof connections. The PN 40 rating indicates that these flanges can withstand pressures up to 40 bar (approximately 580 psi) at normal temperatures (typically 20°C or 68°F). Types of DIN 2545 SS Flanges: · Slip-On Flange (SO): A flange that slides over the pipe and is welded inside and outside for a secure connection. · Weld Neck Flange (WN): A flange with a tapered neck that allows for a stronger weld, commonly used in high-pressure applications. · Blind Flange: A flange with no bore used to seal the end of a pipe or vessel. · Threaded Flange: A flange with internal threads that allows it to be screwed onto a pipe without welding. · Socket Weld Flange: Designed for pipes to fit into the socket of the flange, offering good pressure containment in high-temperature applications. · Lap Joint Flange: Used with a stub end and ideal for applications requiring frequent disassembly. Grades and Their Chemical Composition: · Grade 304 (AISI 304): This grade has a chemical composition consisting of 18-20% chromium, 8-10.5% nickel, with a carbon content of up to 0.08%. It also contains small amounts of manganese (2.00-2.50%), silicon (≤ 1.00%), phosphorus (≤ 0.045%), and sulfur (≤ 0.030%), while the rest is iron. It is widely used due to its good corrosion resistance, weldability, and formability. · Grade 316 (AISI 316): The chemical composition of 316 includes 16-18% chromium, 10-14% nickel, and 2-3% molybdenum. It also contains up to 0.08% carbon, 2.00-2.50% manganese, and ≤ 1.00% silicon, with iron making up the balance. The addition of molybdenum provides improved resistance to corrosion, particularly in chloride environments, making it suitable for marine and chemical industries · Grade 321 (AISI 321): This grade has a chemical composition with 17-19% chromium, 9-12% nickel, and a maximum carbon content of 0.08%. It also contains 2.00-2.50% manganese, ≤ 1.00% silicon, and small amounts of phosphorus (≤ 0.045%) and sulfur (≤ 0.030%). The remainder is iron. Grade 321 is stabilized with titanium to prevent sensitization and is highly resistant to intergranular corrosion, making it ideal for high-temperature applications like in the aerospace and chemical industries. Applications: DIN 2545 Stainless Steel Flanges (PN 40) are widely used in various industries due to their superior strength, corrosion resistance, and versatility. These flanges are specifically designed to handle higher pressure ratings (PN 40), making them ideal for demanding applications. Some of the key applications include: -Chemical Processing: Used in the manufacturing of chemicals, pharmaceuticals, and petrochemicals, where high resistance to corrosion is essential. -Oil and Gas Industry: For pipelines, pumps, and valves that transport oil, gas, and other fluids under high pressure. -Water Treatment Plants: Employed in water and wastewater management systems to connect piping and ensure leak-free connections under high pressure. -Food and Beverage Industry: In production systems where hygiene and corrosion resistance are critical, especially in food processing and dairy plants. -Power Generation: For use in power plants in systems such as steam lines and cooling circuits that operate under high-pressure conditions. -Marine and Offshore: Often used in ships, platforms, and offshore structures that are exposed to harsh environmental conditions. -HVAC Systems: In high-pressure heating, ventilation, and air conditioning applications. DIN 2545 Stainless Steel Flanges (PN 40) offer both durability and reliability in these high-pressure applications, ensuring safe and efficient performance in various industries. Conclusion: DIN 2545 SS flanges provide a reliable and robust solution for piping systems across various industries. These flanges are widely used in applications ranging from general industrial use to highly specialized sectors like aerospace, marine, and chemical processing, ensuring safe and efficient operation in demanding environments. The PN 40 rating guarantees they can withstand medium-to-high pressure systems.

DIN 2527 Monel Blind Flanges are critical components used in piping systems to seal the open ends of pipes, vessels, or equipment when no further connection is needed. These blind flanges are made from Monel alloys, a group of nickel-copper-based alloys known for their exceptional corrosion resistance, especially in harsh marine and chemical environments. Monel flanges, manufactured to the DIN 2527 standard, ensure superior strength and reliability in demanding applications, making them ideal for industries such as chemical processing, marine, and power generation. Material Composition of Monel Alloys: Monel alloys are primarily composed of Nickel (Ni) and Copper (Cu), along with small amounts of other elements such as iron, manganese, and silicon. Two of the most commonly used Monel alloys in blind flange production are: Monel 400: Nickel (Ni): 63% Copper (Cu): 28-34% Iron (Fe): 2.5% max Manganese (Mn): 2.0% max Silicon (Si): 0.5% max Carbon (C): ≤ 0.30% Sulfur (S): ≤ 0.024% Monel K-500: Nickel (Ni): 63% Copper (Cu): 28% Aluminum (Al): 2.3-3.1% Titanium (Ti): 0.35-0.85% Iron (Fe): 2.5% max Manganese (Mn): 1.0% max Silicon (Si): 0.5% max Carbon (C): ≤ 0.30% Sulfur (S): ≤ 0.015% Key Features of DIN 2527 Monel Blind Flanges: Corrosion Resistance: Monel alloys are highly resistant to a wide variety of corrosive agents, including seawater, sulfuric acid, hydrochloric acid, and alkaline environments. Monel 400, in particular, is known for its excellent resistance to chloride-induced stress corrosion cracking, making it ideal for marine applications. Monel K-500 offers enhanced strength and resistance to corrosion fatigue, commonly used in more challenging environments. Temperature Resistance: Monel 400 can withstand temperatures up to 1000°F (538°C) continuously and up to 1200°F (649°C) intermittently. Monel K-500 offers high strength and resistance to oxidation and scaling in environments up to 1000°F (538°C). Mechanical Strength: Monel 400 is known for its strength and durability, especially in environments that require resistance to both high pressure and corrosion. Monel K-500 exhibits additional strength due to the presence of aluminum and titanium, making it suitable for applications under higher stresses. Dimensional Accuracy and Pressure Class: DIN 2527 Monel Blind Flanges are manufactured to precise dimensions, ensuring a secure seal in the piping system. These flanges are available in various pressure classes, such as PN6, PN10, PN16, and others, providing flexibility for different pressure ratings. Design Options: Standard Blind Flange (Type A): A solid, flat disc used to seal the end of a pipe or vessel. Flat-Faced Blind Flange: Designed with a flat sealing surface, ideal for low-pressure systems. Raised Face Blind Flange: Features a raised surface around the center to improve sealing in high-pressure systems. Ring-Type Joint (RTJ) Blind Flange: Includes a groove for an RTJ gasket, used for high-pressure applications, often in the oil and gas industry. Long Weld Neck Blind Flange: Features an extended neck for welding, offering additional strength and used in high-pressure or stressed systems. Nominal Diameter: DIN 2527 Monel Blind Flanges are available in a wide range of sizes, typically from DN10 (1/2 inch) up to DN600 (24 inches) or more, depending on system requirements.

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.

DIN 2527 is a German standard that defines the dimensions, design, and tolerances for flanges, including blind flanges. Blind flanges made of stainless steel 316 are commonly used in piping systems to seal the ends of pipes, providing a secure and reliable closure. Here's a detailed description of DIN 2527 Stainless Steel 316 Blind Flanges: Material: Stainless Steel 316: This is a higher grade of stainless steel compared to 304, offering superior corrosion resistance. Stainless steel 316 contains molybdenum, which enhances its resistance to corrosion, particularly against chlorides, making it ideal for environments with higher risks of corrosion, such as seawater, chemicals, and marine environments. Corrosion Resistance: Stainless steel 316 has excellent resistance to a wide range of chemicals and industrial environments. Temperature Resistance: It can withstand higher temperatures compared to 304 stainless steel, making it suitable for high-temperature applications. Strength: Stainless steel 316 has slightly higher tensile strength compared to 304, offering added durability and structural integrity. Design and Dimensions: Shape: Blind flanges are flat, round plates with no center hole, used to seal the end of a pipe or pressure vessel. Bolt Holes: These flanges have bolt holes to align with bolts for connecting to other flanged components. The number and size of bolt holes depend on the diameter of the flange and the pressure class. Thickness: The thickness of DIN 2527 blind flanges varies depending on the pressure class (PN 6, PN 10, PN 16, PN 25, etc.). Thicker flanges can handle higher pressure ratings and provide a more secure seal. Pressure Rating: Similar to other flanges, the pressure rating for DIN 2527 blind flanges is important for determining the maximum pressure they can withstand without failure. Stainless steel 316 flanges can be designed to withstand high-pressure applications. Applications: Sealing: Blind flanges made of stainless steel 316 are used to seal the end of a pipeline or vessel to prevent fluid leakage, effectively creating a closed system. System Isolation: These flanges are used to isolate sections of a piping system for maintenance or modification, allowing for safe shutoff of pressure or fluid flow. High-Corrosion Environments: Due to the superior corrosion resistance of stainless steel 316, these blind flanges are used in industries where exposure to corrosive materials, saltwater, or harsh chemicals is a concern (e.g., chemical processing, marine, pharmaceutical, food processing). Types of Blind Flanges in DIN 2527: Raised Face (RF): The face of the flange is slightly raised to improve the sealing capability when paired with a gasket. Flat Face (FF): The face of the flange is level with the surface, often used with softer gaskets for a secure seal. Ring Type Joint (RTJ): For applications requiring high pressure, a ring-type joint may be used, which features a groove in the flange for a metallic gasket.