QUALITU STANDARD MATERIAL NO. OLD DESIGNATION DC03 DIN EN 10130 1.0347 St 13-03 The deep drawing grade DC03 is specified according to the standard DIN EN 10130, which focuses on cold-rolled flat products made of soft steels for cold forming. This standard defines the technical requirements and test methods for cold-rolled products used in various industrial applications, particularly where high demands are placed on surface quality and mechanical properties. DC03 is a low-carbon steel characterized by excellent cold formability. The chemical composition of DC03 is precisely defined to ensure that the material has the required mechanical properties. Typically, DC03 contains a maximum of 0.10% carbon, a maximum of 0.45% manganese and traces of phosphorus and sulphur. This small amount of alloying elements contributes to the good formability and weldability of the steel. The mechanical properties of DC03 are also clearly defined. The material has a yield strength of at least 140 MPa and a tensile strength of between 270 and 370 MPa. In addition, DC03 has an elongation at break of at least 34%, which underlines its excellent formability. These properties make DC03 particularly suitable for the production of complex components that require high precision and surface quality, such as body parts in the automotive industry or household appliances. The DIN EN 10130 standard also specifies the tolerances for dimensions, shape and surface finish. These tolerances are crucial to ensure consistently high product quality and to meet the requirements of end users. The surface of the cold-rolled flat products can be supplied in various qualities, from matt to glossy, to meet the specific requirements of different applications. The DIN EN 10152 standard specifies electrolytically galvanized, cold-rolled flat steel products for cold forming, including the deep-drawing grade DC03. This standard defines the requirements for the zinc coating and the basic mechanical properties of the base material. DC03, when electrolytically galvanized in accordance with DIN EN 10152, is given an additional corrosion protection layer of zinc. This layer protects the material from oxidative influences and significantly increases the service life of the components made from it. The zinc coating can be applied in various thicknesses, depending on the specific requirements of the application. Typical coating thicknesses range from 5 to 20 µm. The chemical composition and mechanical properties of the base material DC03 remain unchanged after galvanizing and meet the requirements of DIN EN 10130. DC03 therefore retains its excellent cold formability and mechanical performance. The yield strength, tensile strength and elongation at break also remain in the same range as for ungalvanized DC03. In addition to mechanical performance, the quality of the zinc coating is of central importance. The DIN EN 10152 standard specifies the requirements for the uniformity of the coating, the adhesive strength of the zinc and the surface quality. These requirements ensure that the galvanized products offer high corrosion resistance and an aesthetically pleasing surface. The use of DC03 in accordance with DIN EN 10152 is widespread in the automotive industry, in the construction industry and in the manufacture of household appliances, where improved corrosion resistance is required in addition to high formability. Electrolytic galvanizing offers optimum protection here without impairing the excellent mechanical properties of the base material. In summary, it can be said that the deep-drawing grade DC03 offers a wide range of applications in accordance with both DIN EN 10130 and DIN EN 10152. While DIN EN 10130 focuses on high formability and surface quality, DIN EN 10152 supplements these properties with improved corrosion resistance thanks to the zinc coating. Both standards ensure that DC03 is a reliable and high-quality material for numerous industrial applications. Cold-rolled flat steel DC03, produced in accordance with the DIN EN 10130 and DIN EN 10152 standards, offers a number of advantages for applications in the cold forming process. While DIN EN 10130 defines the basic requirements for chemical composition, mechanical properties and surface quality, DIN EN 10152 extends these specifications to include specific conditions for electrolytically galvanized products that offer additional corrosion protection. Both standards together ensure that DC03 is a versatile material with high quality and durability.

Quality Standard Material No. Old designation DC01 DIN EN 10130 1.0330 ST 12-03 Cold-rolled flat steel DC01, according to the standards DIN EN 10130 and DIN EN 10152 Cold-rolled flat steel DC01 is a widely used material in the industrial sector, which is used for various applications in the cold forming process due to its excellent properties. The standards DIN EN 10130 and DIN EN 10152 are decisive for ensuring the quality and requirements of this material. DC01 according to the DIN EN 10130 standard The DIN EN 10130 standard defines the requirements for cold-rolled flat products made of unalloyed quality steels that are used in the cold forming process. Technical delivery conditions DIN EN 10130 specifies the technical delivery conditions for cold-rolled flat steel. These include the chemical composition, mechanical properties and surface quality. The standard ensures that the products supplied meet the required standards in order to guarantee workability and final quality. Chemical composition The chemical composition of the steel is decisive for its properties and is described in detail in DIN EN 10130. For DC01, the maximum carbon content is 0.12%, while the manganese and phosphorus content is also subject to specific limits. This composition ensures good cold formability and a high surface quality. Mechanical properties DC01 in accordance with DIN EN 10130 has specific mechanical properties that make it ideal for cold forming. These include a minimum tensile strength of 270-410 MPa and a minimum elongation of 28%. These properties allow the steel to be processed into complex shapes without cracking or breaking. Surface quality The surface quality is another aspect of DIN EN 10130. DC01 can be supplied in different surface finishes, such as smooth or matt. These variations allow adaptation to specific requirements of the end application, be it for decorative purposes or further coating processes. DC01+ZE according to the DIN EN 10152 standard The DIN EN 10152 standard extends the requirements of DIN EN 10130 to include specific conditions for electrolytically galvanized products. This standard is crucial for applications in which corrosion protection plays an important role. Technical delivery conditions DIN EN 10152 specifies the technical delivery conditions for electrolytically galvanized, cold-rolled flat products. In addition to the chemical composition and mechanical properties, these conditions also include the specific requirements for the zinc coating. Chemical composition and zinc coating The chemical composition of the base material DC01 generally remains unchanged, but an additional electrolytic zinc coating is applied. This coating is used for corrosion protection and varies in thickness depending on the specific requirements of the application. The standard provides detailed specifications for the thickness and uniformity of the zinc coating to ensure optimum protection. Mechanical properties Even with galvanized products, the mechanical properties of the base material are largely retained. The standard ensures that the cold formability and strength of the steel are not impaired despite the additional coating. Corrosion resistance and surface quality One of the main advantages of products manufactured in accordance with DIN EN 10152 is their improved corrosion resistance. Electrolytic galvanizing protects the steel from rust and thus increases the service life of the end product. The surface quality also plays a decisive role here and can be supplied in various finishes, such as smooth or textured. Conclusion Cold-rolled flat steel DC01, produced in accordance with the DIN EN 10130 and DIN EN 10152 standards, offers a number of advantages for applications in the cold forming process. While DIN EN 10130 defines the basic requirements for chemical composition, mechanical properties and surface quality, DIN EN 10152 extends these specifications to include specific conditions for electrolytically galvanized products that offer additional corrosion protection. Both standards together ensure that DC01 is a versatile material with high quality and durability. FOR EN 10130 DC01 CHEMICAL , MECHANICAL DATA SHEET KINDLY VISIT https://www.ladhanimetal.in/page/en-10130-2006-chemical-and-mechanical-composition/689c322d2e585e299cb43798 https://www.ladhanimetal.in/page/en-10130-cold-rolled-flat-sheet-plate-coil-data-sheet-equivalent-grade-and-chemical-and-mechanical-properties/68a45503fc14472bb274df32

DIN 2634 carbon steel flanges PN 25 are high-strength weld neck flanges manufactured according to the DIN 2634 standard. Specifically designed for use in high-pressure piping systems operating up to 25 bar (362 psi), these flanges offer excellent mechanical performance and are suitable for a wide range of industrial applications. Manufactured from quality carbon steel, they provide strong, durable, and cost-effective solutions for systems where corrosion resistance requirements are moderate but structural integrity is critical. Ladhani Metal Corporation is a recognized manufacturer and global supplier of carbon steel flanges, known for precision engineering, strict adherence to international standards, and advanced production capabilities. Each flange is subject to comprehensive testing and inspection to ensure reliability and consistent performance under demanding operating conditions. Pressure Rating: • PN 25 (25 bar / 362 psi): Suitable for medium to high-pressure applications where strength and impact resistance are essential. Flange Type: • Weld Neck Flanges Designed with a tapered hub to ensure smooth transition from flange to pipe, weld neck flanges are ideal for systems experiencing frequent thermal cycling, pressure fluctuations, and mechanical stress. • Flat Face (FF) Flanges Recommended for use with gaskets made from soft materials or when connecting to cast iron components, flat face flanges ensure even gasket compression and reliable sealing performance. Carbon Steel Grades and Typical Composition: Carbon Steel (ASTM A105 / C22.8 equivalent) – Forged Carbon Steel • Carbon (C): ≤ 0.35% • Manganese (Mn): 0.60 – 1.05% • Phosphorus (P): ≤ 0.035% • Sulfur (S): ≤ 0.040% • Silicon (Si): 0.10 – 0.35% • Iron (Fe): Balance Applications: Commonly used in oil and gas, petrochemical, water transmission, and power generation industries, especially in applications where high mechanical strength and pressure handling are more critical than corrosion resistance. Applications of DIN 2634 Carbon Steel Flanges PN 25: • Oil and Gas Pipelines Widely used in upstream and downstream systems for fluid transport under high pressure. • Petrochemical and Refining Plants Efficiently handles high-pressure flow systems involving hydrocarbons and steam. • Power Plants and Boiler Systems Suited for high-pressure steam and water lines, offering excellent tensile strength and fatigue resistance. • Water and Wastewater Infrastructure Used in municipal and industrial pipelines requiring cost-effective, robust flange connections. • General Industrial Systems Applicable in a wide range of mechanical systems and processing plants handling non-corrosive or mildly corrosive media. Key Features: • Compliant with DIN 2634 pressure and dimensional standards • PN 25 rating ensures compatibility with high-pressure pipelines • High tensile and yield strength for demanding structural requirements • Weld neck design enhances resistance to vibration and thermal expansion • Cost-effective solution for pressure-bearing connections • Available in standard and custom sizes, surface finishes, and pressure ratings • Heat treatment and coating options available upon request Conclusion: DIN 2634 carbon steel flanges PN 25 from Ladhani Metal Corporation provide a robust and economical solution for high-pressure systems where mechanical performance is essential. Their strength, reliability, and adaptability make them a preferred choice across industries such as oil and gas, power generation, and water infrastructure. For technical specifications, custom configurations, or pricing, contact Ladhani Metal Corporation today.

DIN 2633 Inconel flanges PN 16 are precision-engineered weld neck flanges manufactured to the DIN 2633 standard, specifically designed for use in high-temperature and highly corrosive industrial environments. These flanges offer secure, pressure-resistant connections for pipeline systems operating at up to 16 bar (232 psi). Fabricated from premium Inconel alloys such as 600, 625, and 718, they provide excellent resistance to oxidation, thermal stress, and corrosive chemicals, making them ideal for extreme service conditions across various industries. Ladhani Metal Corporation is a trusted global supplier and manufacturer of Inconel flanges, known for its commitment to material integrity, precision engineering, and strict compliance with international quality standards. Each flange is subjected to thorough inspections to meet performance, safety, and durability expectations. Pressure Rating: • PN 16 (16 bar / 232 psi): Suitable for high-performance pipeline systems requiring resistance to thermal cycling, corrosion, and pressure fluctuation. Flange Type: • Weld Neck Flanges Long tapered hub design ensures smooth fluid transitions and reduces mechanical stress at the base, offering strong and vibration-resistant joints. • Flat Face (FF) Flanges Promotes even gasket loading and is compatible with soft or cast-mating components, enhancing sealing efficiency and system longevity. Inconel Grades and Full Composition: Inconel 600 • Nickel (Ni): ≥ 72.0% • Chromium (Cr): 14.0 – 17.0% • Iron (Fe): 6.0 – 10.0% • Carbon (C): ≤ 0.15% • Manganese (Mn): ≤ 1.0% • Silicon (Si): ≤ 0.5% • Sulfur (S): ≤ 0.015% Applications: Ideal for high-temperature furnace components, chemical processing, and food equipment exposed to acidic and alkaline environments. Inconel 625 • Nickel (Ni): 58.0% min • Chromium (Cr): 20.0 – 23.0% • Molybdenum (Mo): 8.0 – 10.0% • Niobium (Nb) + Tantalum (Ta): 3.15 – 4.15% • Iron (Fe): ≤ 5.0% • Carbon (C): ≤ 0.10% • Manganese (Mn): ≤ 0.5% • Silicon (Si): ≤ 0.5% Applications: Suitable for seawater systems, offshore oil and gas equipment, aerospace ducting, and high-strength chemical processing. Inconel 718 • Nickel (Ni): 50.0 – 55.0% • Chromium (Cr): 17.0 – 21.0% • Iron (Fe): Balance • Niobium (Nb) + Tantalum (Ta): 4.75 – 5.5% • Molybdenum (Mo): 2.8 – 3.3% • Titanium (Ti): 0.65 – 1.15% • Aluminum (Al): 0.2 – 0.8% • Carbon (C): ≤ 0.08% Applications: Extensively used in aerospace engines, turbine components, cryogenic storage tanks, and high-strength fasteners due to excellent fatigue, creep, and rupture resistance. Applications of DIN 2633 Inconel Flanges PN 16: • Petrochemical and Refining Industries Withstands exposure to high-temperature hydrocarbons, acids, and corrosive gases. • Marine and Offshore Installations Corrosion-resistant in saltwater and high-pressure environments, ideal for subsea and topside systems. • Aerospace and Power Generation Used in turbine and exhaust systems where strength retention at elevated temperatures is critical. • Chemical Processing Plants Stable under acidic, oxidizing, and reducing agents in continuous and batch processing systems. • Heat Exchangers and Reactors Reliable performance in thermal cycling and aggressive fluid handling applications. Key Features: • Designed in accordance with DIN 2633 specifications • Rated PN 16 for secure medium-pressure operation • Weld neck design improves alignment and minimizes mechanical stress • Available in Inconel grades 600, 625, and 718 • Exceptional resistance to high-temperature oxidation and corrosion • High tensile strength and fatigue resistance under mechanical loads • Tailored dimensions, surface finishes, and specifications available upon request Conclusion: DIN 2633 Inconel Flanges PN 16 from Ladhani Metal Corporation are engineered to meet the toughest demands of modern industry. Offering excellent resistance to high-temperature and corrosive environments, these flanges made from Inconel 600, 625, and 718 are ideal for critical applications across aerospace, petrochemical, marine, and power generation sectors. For detailed product options, technical support, or a customized quote, contact Ladhani Metal Corporation today.

DIN 2633 Monel flanges PN 16 are precision-engineered weld neck flanges manufactured in accordance with the DIN 2633 standard. Designed for pipeline systems operating at pressures up to 16 bar (232 psi), these flanges provide exceptional resistance to corrosive environments, including seawater, acids, and alkalis. Manufactured from high-performance Monel alloys such as Monel 400 and Monel K500, they combine outstanding mechanical strength with excellent corrosion resistance, making them suitable for demanding industrial and marine applications. Ladhani Metal Corporation is a trusted global manufacturer and supplier of Monel flanges, known for superior material quality, dimensional accuracy, and strict compliance with international standards. Each flange undergoes rigorous quality checks and testing to ensure consistent performance in critical service conditions. Pressure Rating: • PN 16 (16 bar / 232 psi): Suitable for medium-pressure systems requiring corrosion resistance and structural reliability. Flange Type: • Weld Neck Flanges Designed with a long tapered hub to ensure smooth flow transitions, proper pipe alignment, and minimized stress concentration for high-integrity connections. • Flat Face (FF) Flanges Provides a uniform sealing surface ideal for systems with soft gasket materials or cast mating components, ensuring optimal gasket compression. Monel Grades and Full Composition: Monel 400 • Nickel (Ni): ≥ 63.0% • Copper (Cu): 28.0 – 34.0% • Iron (Fe): ≤ 2.5% • Manganese (Mn): ≤ 2.0% • Silicon (Si): ≤ 0.5% • Carbon (C): ≤ 0.3% Applications: Widely used in marine engineering, chemical processing, pump and valve components, and environments exposed to hydrofluoric and sulfuric acids. Monel K500 • 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% • Carbon (C): ≤ 0.25% Applications: Suitable for high-strength applications in marine, oil and gas, and sour gas service environments. Offers improved mechanical properties over Monel 400 while retaining excellent corrosion resistance. Applications of DIN 2633 Monel Flanges PN 16: • Marine and Offshore Systems Ideal for saltwater piping, desalination systems, and submerged components due to excellent resistance to chloride stress corrosion. • Chemical Processing Industries Used in systems handling strong acids, alkalis, and organic solvents, especially hydrofluoric acid. • Oil and Gas Exploration Resistant to sour gas environments, high pressures, and corrosive drilling fluids. • Heat Exchangers and Condensers Monel flanges are preferred for their stability under fluctuating thermal loads and corrosive fluids. • Power Generation Used in cooling water and fuel handling systems where reliability under stress and corrosion is essential. Key Features: • Manufactured to DIN 2633 specifications • PN 16 rating for medium-pressure pipelines • Weld neck design for stress-distributed, leak-proof connections • Available in Monel 400 and K500 grades for tailored performance • Excellent resistance to corrosion in marine, acidic, and alkaline environments • High tensile strength and resistance to mechanical fatigue • Custom sizes, pressure classes, and finishes available on request Conclusion: DIN 2633 Monel Flanges PN 16 from Ladhani Metal Corporation offer robust performance in highly corrosive and pressure-sensitive applications. With superior resistance to seawater, acids, and harsh industrial chemicals, these flanges are engineered for longevity and strength in marine, chemical, and oil and gas systems. For custom configurations, technical advice, or pricing details, contact Ladhani Metal Corporation today.

DIN 2632 Inconel flanges PN 10 are precision-engineered weld neck flanges manufactured in accordance with the DIN 2632 standard. Designed for medium-pressure applications up to 10 bar (145 psi), these flanges offer exceptional resistance to high temperatures, oxidation, and aggressive chemical environments. Produced using high-performance Inconel alloys, they ensure reliable operation in highly corrosive and thermally demanding industrial systems. Ladhani Metal Corporation is a globally recognized manufacturer and supplier of Inconel flanges, known for engineering excellence and stringent quality control. Each flange undergoes rigorous testing to meet relevant industrial specifications and environmental safety standards. Pressure Rating: • PN 10 (10 bar / 145 psi): Suitable for medium-pressure pipeline systems requiring superior corrosion and temperature resistance. Flange Type: • Weld Neck Flanges Engineered with a long tapered hub to ensure accurate pipe alignment and minimize stress concentration at the flange base. This design allows smoother fluid flow and reinforces joint strength. • Flat Face (FF) Flanges Flat face configuration ensures even gasket compression, especially suited for systems using soft gaskets or mating with cast components. Inconel Grades and Composition: Inconel 600 • Nickel (Ni): 72.0% minimum • Chromium (Cr): 14.0–17.0% • Iron (Fe): 6.0–10.0% • Carbon (C): ≤ 0.15% • Manganese (Mn): ≤ 1.0% • Silicon (Si): ≤ 0.5% Applications: Inconel 600 offers excellent resistance to high-temperature oxidation and corrosion. Commonly used in chemical processing, food industry heat exchangers, and marine exhaust systems. Inconel 625 • Nickel (Ni): Balance • Chromium (Cr): 20.0–23.0% • Molybdenum (Mo): 8.0–10.0% • Niobium (Nb): 3.15–4.15% • Iron (Fe): ≤ 5.0% • Carbon (C): ≤ 0.10% • Manganese (Mn): ≤ 0.50% • Silicon (Si): ≤ 0.50% Applications: Inconel 625 is known for its outstanding fatigue strength and resistance to pitting, crevice corrosion, and stress corrosion cracking. It is widely used in marine, chemical, aerospace, and nuclear sectors. Inconel 718 • Nickel (Ni): 50–55% • Chromium (Cr): 17–21% • Iron (Fe): Balance • Niobium (Nb): 4.75–5.5% • Molybdenum (Mo): 2.8–3.3% • Titanium (Ti): 0.65–1.15% • Aluminum (Al): 0.2–0.8% • Cobalt (Co): ≤ 1.0% • Carbon (C): ≤ 0.08% Applications: Inconel 718 offers exceptional tensile, fatigue, and creep resistance at temperatures up to 700°C. It is extensively used in aerospace engines, gas turbines, nuclear reactors, and high-performance industrial equipment where superior mechanical strength and corrosion resistance are required. Applications of DIN 2632 Inconel Flanges PN 10: • Chemical and Petrochemical Industry Ideal for systems carrying corrosive chemicals, acids, and oxidizing agents at elevated temperatures. • Marine and Offshore Used in saltwater piping, offshore platforms, and naval systems requiring materials with high corrosion and heat resistance. • Power Generation Suitable for high-temperature applications in power plants, heat exchangers, and turbine systems. • Aerospace and Defense Applied in jet engine components, space propulsion systems, and structural parts subjected to extreme pressure and heat. Key Features: • Manufactured to DIN 2632 specifications • PN 10 pressure rating for medium-pressure systems • Weld neck design for superior mechanical integrity • Available in Inconel 600, 625, and 718 for application-specific performance • Flat face option for improved gasket compression • Excellent resistance to oxidation, corrosion, and high-temperature stress • Suitable for critical applications in chemical, marine, aerospace, and energy sectors • Custom sizes, finishes, and alloys available upon request Conclusion: DIN 2632 Inconel Flanges PN 10 from Ladhani Metal Corporation deliver unmatched reliability and durability in medium-pressure environments where heat and corrosion are persistent challenges. With a selection of Inconel grades including 600, 625, and 718, these flanges are ideal for use in chemical processing, marine engineering, power generation, and aerospace industries. For customized solutions, technical guidance, or pricing, contact Ladhani Metal Corporation today.

DIN 2628 Carbon Steel flanges PN 250 are heavy-duty weld neck flanges manufactured in accordance with the DIN 2628 standard, designed for use in high-pressure systems operating up to 250 bar (3625 psi). These flanges are crafted from robust carbon steel grades, offering excellent mechanical strength, weldability, and cost-efficiency. With high tensile strength and good resistance to wear and fatigue, carbon steel flanges are ideal for structural and pressure-bearing applications in industries where corrosion is not a primary concern or where protective coatings are applied. Ladhani Metal Corporation supplies a comprehensive range of DIN 2628 PN 250 Carbon Steel flanges, engineered for demanding industrial environments. Known for precision machining, quality assurance, and consistent performance, our flanges are widely used in sectors such as oil and gas, power generation, water treatment, construction, and mechanical engineering. These flanges provide a reliable connection in pipeline systems that require durable performance under high pressure and mechanical stress. Pressure Rating: • PN 250 (250 bar / 3625 psi): Designed for high-pressure applications that demand strength, durability, and tight sealing under elevated loads. Flange Type: • Weld Neck Flanges Equipped with a tapered hub that enhances mechanical stability and reduces stress concentration at the weld. Ideal for fluctuating temperatures and high-pressure service. • Flat Face (FF) Flanges Flat face design allows for even gasket compression, reducing the risk of leakage when connected to cast or brittle piping components. Carbon Steel Grades and Composition: Common Grades: ASTM A105, ASTM A350 LF2 ASTM A105 • 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: Forged carbon steel used in ambient and high-temperature service. Ideal for valves, fittings, and flanges in oil, gas, and industrial pipelines. ASTM A350 LF2 • Carbon (C): ≤ 0.30% • Manganese (Mn): 0.60 – 1.35% • Phosphorus (P): ≤ 0.035% • Sulfur (S): ≤ 0.040% • Silicon (Si): 0.15 – 0.30% Applications: Low-temperature carbon steel suitable for cryogenic and sub-zero environments. Commonly used in pipeline systems, compressors, and pressure vessels. Applications of DIN 2628 Carbon Steel Flanges PN 250: • Oil and Gas Pipelines Used in high-pressure oil, gas, and petrochemical systems where strength and structural integrity are critical. • Power Generation Applied in steam and thermal power plants, including boiler systems and heat exchangers. • Mechanical and Structural Systems Suitable for heavy-duty machinery, process piping, and structural pipe connections. • Water Treatment and Distribution Utilized in potable water and wastewater infrastructure requiring reliable, high-strength components. • HVAC and Industrial Utilities Installed in heating, ventilation, and compressed air systems operating at elevated pressures. Key Features: • Complies with DIN 2628 standard for high-pressure flange applications • PN 250 rating supports high-load, high-stress operational conditions • Weld neck design for optimal flow and reduced weld stress • Flat face option for even gasket pressure and secure sealing • Available in ASTM A105 and A350 LF2 grades • High mechanical strength and excellent machinability • Cost-effective option for non-corrosive or coated environments • Custom sizes, finishes, and drilling patterns available upon request Conclusion: DIN 2628 Carbon Steel Flanges PN 250 by Ladhani Metal Corporation offer a durable, economical solution for high-pressure systems in a variety of industrial applications. With excellent mechanical strength and versatility, these flanges are engineered to perform reliably in demanding environments where corrosion resistance is secondary to pressure and structural requirements. Contact Ladhani Metal Corporation for specifications, technical assistance, or to request a custom quotation for your project needs.

DIN 2628 Duplex steel flanges PN 250 are high-strength weld neck flanges designed according to the DIN 2628 standard for use in high-pressure systems up to 250 bar (3625 psi). Fabricated from Duplex stainless steels, these flanges offer an ideal balance of strength and corrosion resistance, combining the beneficial properties of both austenitic and ferritic stainless steels. Their robust mechanical performance, excellent resistance to stress corrosion cracking, and superior weldability make them well-suited for critical applications in aggressive service environments. Ladhani Metal Corporation manufactures and exports premium-grade Duplex steel flanges that meet stringent international standards for quality, reliability, and performance. Our DIN 2628 PN 250 Duplex steel weld neck flanges are widely used in sectors such as oil and gas, desalination, petrochemical processing, pulp and paper, and marine industries. With precision engineering and consistent quality, these flanges are designed to withstand high pressure, corrosive media, and mechanical stress. Pressure Rating: • PN 250 (250 bar / 3625 psi): Suitable for high-pressure systems requiring excellent structural integrity, corrosion resistance, and reliable sealing in dynamic conditions. Flange Type: • Weld Neck Flanges These flanges feature a tapered neck, offering high fatigue resistance by reducing stress concentration at the weld area. Ideal for applications with high pressure, high temperature, or repeated thermal cycling. • Flat Face (FF) Flanges Flat face design provides uniform gasket loading, minimizing the risk of flange deformation. Suitable for systems using brittle materials or low-pressure cast components. Duplex Steel Grades and Composition: Duplex 2205 (UNS S32205 / S31803) • Chromium (Cr): 21.0 – 23.0% • Nickel (Ni): 4.5 – 6.5% • Molybdenum (Mo): 2.5 – 3.5% • Nitrogen (N): 0.14 – 0.20% • Iron (Fe): Balance • Manganese (Mn): ≤ 2.0% • Silicon (Si): ≤ 1.0% • Carbon (C): ≤ 0.03% Applications: Offers excellent corrosion resistance, particularly to chloride-induced stress corrosion cracking and pitting. Commonly used in offshore oil rigs, chemical tanks, heat exchangers, and pressure vessels. Applications of DIN 2628 Duplex Steel Flanges PN 250: • Oil and Gas Exploration Resistant to sour gas, chloride attack, and high mechanical loads in subsea and topside environments. • Chemical Processing Plants Used in aggressive chemical systems, reactors, and storage vessels requiring high corrosion resistance. • Marine and Offshore Structures Reliable in saltwater applications, such as ballast systems, risers, and flowlines. • Pulp and Paper Industry Withstands acidic and alkaline process chemicals used in bleaching and pulping operations. • Water Treatment and Desalination Ideal for handling brine and high-chloride content fluids in RO and thermal desalination systems. Key Features: • Conforms to DIN 2628 standards • PN 250 pressure rating for high-pressure, heavy-duty systems • Weld neck configuration for excellent mechanical support and minimal stress concentration • Flat face variant ensures even gasket loading and leak-proof operation • Available in Duplex 2205 and Super Duplex 2507 grades • Excellent resistance to chloride stress corrosion, pitting, and crevice corrosion • High tensile and yield strength for demanding industrial conditions • Custom sizes, pressure ratings, and surface finishes available upon request Conclusion: DIN 2628 Duplex Steel Flanges PN 250 from Ladhani Metal Corporation are the optimal solution for applications requiring superior corrosion resistance, high mechanical strength, and reliable sealing performance under extreme pressure. Available in Duplex 2205 and Super Duplex 2507, these flanges offer outstanding performance across various aggressive industrial environments. For detailed technical specifications or to request a customized quotation, please contact Ladhani Metal Corporation.

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.