Raised Face Flanges are one of the most widely used flange types in industrial piping systems, offering reliable sealing performance in high-pressure and high-temperature environments. American Metallix Steel Co. manufactures precision-engineered raised face flanges designed for demanding mechanical, structural, and process engineering applications. These flanges are essential components in pipelines, pressure vessels, heat exchangers, and power generation systems where leak-proof connections are critical. The raised face design enhances gasket compression, ensuring a secure seal between mating flanges. In industries such as oil and gas, chemical processing, petrochemicals, marine engineering, and thermal power plants, raised face flanges provide dependable joint integrity and long service life. Their compatibility with stainless steel pipes, carbon steel fittings, and alloy steel components makes them suitable for a wide range of industrial fabrication requirements.
Raised Face Flanges are characterized by a small raised section around the bore, which concentrates pressure on the gasket area when bolts are tightened. This design improves sealing efficiency and reduces the risk of leakage under fluctuating pressure and temperature conditions. The height of the raised face typically depends on the pressure rating, in accordance with ASME B16.5 and related standards. These flanges are manufactured using materials such as stainless steel, carbon steel, duplex steel, and alloy steel. Stainless steel raised face flanges offer superior corrosion resistance, particularly in chemical processing and marine environments. Carbon steel variants provide strength and cost efficiency for general industrial piping systems, while alloy steel options enhance performance in high-temperature and high-pressure services. Metallurgically, the properties of raised face flanges depend on the base material. Austenitic stainless steel flanges deliver excellent toughness and resistance to oxidation. Carbon steel flanges provide high tensile strength and good machinability. Proper heat treatment processes such as normalizing, quenching, and tempering ensure dimensional stability and mechanical integrity. These flanges are engineered to withstand mechanical stress, internal pressure, and corrosive media, making them suitable for pressure equipment and structural piping assemblies.
Raised Face Flanges provide superior sealing performance due to their concentrated gasket seating area. This design allows better gasket compression, reducing leakage risk in high-pressure piping systems. The enhanced sealing capability makes them ideal for critical applications in refineries, chemical plants, and power stations. Strength and durability are key advantages. These flanges are built to handle significant bolt loads and internal pressures without deformation. When manufactured from stainless steel or alloy steel, they offer excellent corrosion resistance, protecting piping systems from chemical attack, oxidation, and environmental exposure.
Machinability is another benefit, especially for stainless steel raised face flanges. Accurate machining ensures proper alignment with pipes, tubes, and fittings, which is essential for leak-proof joints. Their cost efficiency stems from long operational life, minimal maintenance requirements, and reduced downtime. For industrial fabrication and structural engineering projects, raised face flanges deliver dependable long-term performance.
In oil refineries and petrochemical plants, Raised Face Flanges Manufacturers produce flanges that connect stainless steel pipes and alloy steel pipelines handling crude oil, natural gas, and refined products. These flanges maintain sealing integrity under extreme pressure and temperature variations, ensuring safe and continuous operations. Within chemical processing facilities, Raised Face Flanges Suppliers provide corrosion-resistant flanges used in reactors, storage tanks, and process lines carrying acids, solvents, and aggressive chemicals. The raised face design enhances gasket performance, minimizing the risk of leakage in hazardous environments.
For heavy engineering and infrastructure projects, Raised Face Flanges Stockists maintain ready inventory for structural piping systems, water treatment plants, and industrial fabrication units. Immediate availability supports maintenance shutdowns and expansion projects where precision-engineered flange connections are required. In international energy and marine sectors, Raised Face Flanges Exporters deliver certified flange solutions for offshore platforms, shipbuilding, desalination plants, and thermal power stations. Compliance with global standards ensures compatibility with pipes, tubes, plates, and other steel components used in cross-border engineering projects.
Raised Face Flanges are manufactured in accordance with recognized standards such as ASME B16.5 and ASME B16.47 for dimensional requirements and pressure ratings. Material specifications commonly follow ASTM standards including ASTM A105 for carbon steel flanges, ASTM A182 for forged stainless steel and alloy steel flanges, and ASTM A350 for low-temperature carbon steel applications. These standards define chemical composition, mechanical properties, testing procedures, and marking requirements. Compliance ensures that raised face flanges perform reliably in pressure vessels, pipelines, boilers, and high-temperature systems used in power plants and chemical processing facilities.
Steel products such as bars, pipes, tubes, plates, sheets, coils, and flanges are named and classified according to international standards including ASTM, ASME, EN, DIN, JIS, and ISO. ASTM and ASME standards are widely applied in North America and the Middle East for pressure equipment and industrial piping systems. EN and DIN standards govern European structural and engineering materials, while JIS covers Japanese industrial specifications. ISO standards provide global harmonization for quality control and testing methods. Product identification is based on material grade, manufacturing process, pressure class, and dimensional tolerances, enabling engineers and procurement teams to select compatible components for industrial fabrication and structural engineering projects worldwide.
American Metallix Steel Co. is one of the leading manufacturer and supplier of ASME B 16.5, ASME B 16.47, MSS SP44, ASTM A182, 240, 105, 350, SB564, 160, 472 Raised Face Flanges at the best price in India.
Request Latest Price & Stock AvailabilityRaised Face Flanges are manufactured according to ASME, ANSI, BS, DIN, EN, JIS, API and other international standards. They are available in multiple sizes, pressure ratings, materials, face configurations and customised designs.
| Specification | Details |
|---|---|
| ASME B16.5 Raised Face Flange Size Chart | 1/2" (15 NB) to 48" (1200 NB); DN10 to DN5000 |
| Raised Face Flange Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, ASME B16.36, BS 4504, BS 10, BS 1560-3.1, EN 1092, DIN, GOST, MSS SP44, ISO 7005-1, JIS B2220, API 605, API 7S-15, API 7S-43 and other international standards |
| Raised Face Flange Pressure Rating ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS and 2500 LBS |
| Pressure Calculation in DIN | 6 Bar, 10 Bar, 16 Bar, 25 Bar and 40 Bar; PN6, PN10, PN16, PN25, PN40 and PN64 |
| JIS RF Flange | 5K, 10K, 16K, 20K, 30K, 40K and 63K |
| UNI Stainless Steel Raised Face Flanges | 6 Bar, 10 Bar, 16 Bar, 25 Bar and 40 Bar |
| EN Raised Face Flanges | 6 Bar, 10 Bar, 16 Bar, 25 Bar and 40 Bar |
| Coating for ASTM A182 SS Raised Face Flange | Oil black paint, anti-rust paint, zinc plating, yellow transparent coating, cold galvanizing and hot-dip galvanizing |
| Most Common Types | Forged, threaded, screwed and plate flanges |
| Test Certificates |
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| Production Technique | Forged, heat treated and machined |
| Connect Type / Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove and Groove |
| Special Design | Manufactured according to customer drawings and project requirements |
| Size and Configuration | AS, ANSI, BS, DIN and JIS standards; 15 NB (1/2") to 200 NB (8"); equal and reducing configurations |
| Testing Equipment | Direct-reading spectrograph, hydrostatic testing machine, X-ray detector, ultrasonic flaw detector and magnetic particle detector |
| Manufacturing Equipment | Press machine, bending machine, pushing machine, electric bevelling machine and sand-blasting machine |
| Origin | India, Western Europe, Japan, USA and Korea |
| Carbon Steel Raised Face Flange Standards | ANSI, DIN, GOST, JIS, UNI, BS, AS 2129, AWWA, EN, SABS and NFE |
| Additional Standards | BS 4504, BS 3293, BS 1560, BS 10, AS 2129 Table D, Table E and Table H, ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ANSI B16.36, ANSI B16.48, AWWA C207, EN 1092-1, GOST 12820, JIS B2220, KS B1503, SABS 1123, NFE 29203 and UNI 2276 |
| DIN Standards | DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637 and DIN 2638 |
| Raised Face Flange Uses & Applications |
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| Export Markets | Ireland, Singapore, Indonesia, Ukraine, Saudi Arabia, Spain, Canada, USA, Brazil, Thailand, Korea, Iran, India, Egypt, Oman, Dubai and Peru |
Raised Face Flanges are available from 1/2 inch to 48 inches and DN10 to DN5000. Standard and customised flanges are supplied in multiple pressure classes, face types, coatings and international specifications according to project requirements.