At Esha Steel, we proudly supply high-quality Alloy Steel Flanges to industries across Kolkata and nationwide. Manufactured according to ASTM, ASME, and DIN standards, these flanges are engineered for high-pressure, high-temperature, and corrosive environments. Esha Steel ensures precise dimensions, superior mechanical properties, and strict quality control, making them a trusted choice for industrial applications. Used across oil, gas, petrochemical, and power sectors, alloy steel flanges provide durable, reliable, and safe connections in piping systems, ensuring efficient operation and long-term performance in demanding industrial and process environments.
Alloy Steel Flanges are made from chromium-molybdenum or other low-alloy steels with controlled carbon, manganese, phosphorus, sulfur, and silicon content. This alloying enhances high-temperature strength, toughness, and corrosion resistance. Mechanically, these flanges provide tensile strength ranging from 485–760 MPa, yield strength from 260–620 MPa, and good elongation with excellent impact resistance. Heat treatment ensures hardness, dimensional stability, and creep resistance. Their uniform microstructure allows for excellent weldability and machinability, making alloy steel flanges suitable for critical piping connections in high-pressure, high-temperature, and corrosive industrial applications.
Alloy Steel Flanges Specification :Â ASTM A182 / ASME SA182
Dimension Standard :Â ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Standard :Â ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size :Â 1/2″ (15 NB) to 48″ (1200NB)
Class / Pressure :Â 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Flange Face Type :Â Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
DIN Flanges :Â DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673.
JIS Flanges :Â JIS B2220 5K, JIS B2220 10K, JIS B2220 16K, JIS B2220 20K
BS Flanges :Â BS4504 PN 6, BS 4504 PN 10, BS4504 PN 16, BS4504 PN 25, BS4504 PN 40, BS 4504 PN 64, BS 4504 PN 100, BS 4504 PN 160, BS 4504 PN 250, BS 10, BS Table D, BS Table E, BS Table F, BS Table H.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Esha Steel is a top manufacturer and supplier of high-quality Alloy Steel Flanges products in Kolkata India. Specializing in steel solutions, we provide a wide range of products, including Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel. Our offerings include Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates. Known for our reliable delivery and superior customer service, we are committed to offering top-tier steel materials that ensure durability and performance across a wide range of industrial applications. We strive to meet the highest standards, making us a trusted partner for all your steel needs.
Alloy Steel Flanges are widely used in oil and gas pipelines, petrochemical plants, refineries, power generation facilities, and chemical processing units. They are ideal for connecting pipes, valves, pumps, and other equipment in high-pressure and high-temperature systems. These flanges provide secure, leak-proof, and durable connections in steam, water, gas, and chemical transport pipelines. With excellent mechanical strength, weldability, and corrosion resistance, alloy steel flanges ensure safe and reliable operation. Engineers and fabricators rely on them for critical industrial applications where high performance, long-term durability, and safety are essential.
Esha Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Kolkata India.
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