Socket Weld Elbow
Socket weld elbows are forged high-pressure pipe fittings manufactured through integral die forging, with socket-type connection ends on both sides. During installation, the pipe is inserted into the socket and secured with fillet welds to complete the connection. This product is mainly suitable for small-diameter high-pressure piping systems of DN100 and below, with common angles of 90° and 45°, and non-standard angles such as 30° and 60° can also be customized. The product strictly complies with GB/T14383-2018 and ASME B16.11 standards, with pressure ratings covering 3000LB, 6000LB, and 9000LB. Available materials include carbon steel, stainless steel, alloy steel, and duplex steel to suit different media and working conditions. Socket weld elbows require no bevel preparation—the pipe is positioned simply by inserting it into the socket—making welding quick and convenient. The compact structure offers excellent vibration resistance and pressure-bearing performance, effectively reducing the risk of leakage. They are widely used in small-diameter process piping in industries such as petrochemical, power, nuclear power, gas, instrumentation lines, pharmaceutical, and marine, and are suitable for conveying fluids including oil products, steam, and corrosive media. Before leaving the factory, each product undergoes flaw detection, hardness testing, dimensional inspection, and other checks to ensure reliable mechanical properties. For specific models and pricing, please contact us for confirmation.
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Hot Push Elbow
Hot-pushed elbows, also known as medium-frequency hot-pushed seamless elbows, are seamless butt-welding elbows formed in one piece through the hot-push expansion bending process, which uses medium-frequency induction heating, a dedicated pushing machine, and a horn-shaped core die. The pipe blank is heated to a plastic state, and under thrust, expansion and bending forming are completed simultaneously, relying on plastic metal flow to compensate for the wall thickness of the inner and outer arcs of the elbow. The finished product has uniform wall thickness and no welded seams, making this the mainstream production process for carbon steel and alloy steel seamless elbows. The products are manufactured in accordance with GB/T12459 and ASME B16.9 standards. The mainstream angles are 45°, 90°, and 180°, with long radius LR (R=1.5D) as the primary option, while short radius SR (R=1.0D) specifications can also be produced. The nominal diameter range covers DN20-DN800, and materials include 20# and A234-WPB carbon steel, 16Mn and 12Cr1MoV alloy steel, with stainless steel available for certain specifications. After forming, heat treatment is applied to eliminate processing stress, and the welding bevels are machined. The appearance is smooth and sleek, mechanical properties are stable, and the product is suitable for large-scale engineering procurement. The product uses butt-welding connections and is mainly used to change the direction of media flow in piping systems. It is widely applied in high-temperature, medium- and high-pressure process pipelines in industries such as petroleum refining, thermal power generation, heating pipe networks, natural gas, chemical, and coal chemical industries, and is compatible with steam, oil and gas, and process flows.
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Stamped Elbow
A stamped elbow is a butt-welding pipe elbow formed integrally from a whole steel pipe by cold stamping or hot stamping, and is the most commonly used standard pipe fitting for low-pressure and medium-low-pressure pipelines. It is formed by die pressing, featuring fast forming speed, standard dimensions, neat appearance, and high cost performance, making it the largest-volume elbow category used in civil pipelines, municipal engineering, plumbing and gas, and ordinary industrial pipelines. The product strictly complies with GB/T12459 and ASME B16.9 standards, with conventional angles of 45°, 90°, and 180°, mainly in long radius R=1.5D, covering nominal diameters from DN15 to DN600, and common materials including 20# carbon steel, A234-WPB, stainless steel 304, and 316L. Stamped elbows offer stable forming, strong interchangeability, low mass-production cost, and fast delivery, making them suitable for normal-temperature, low-pressure, and conventional fluid transmission pipelines, and they are widely used in water supply and drainage, HVAC and fire protection, municipal gas, ordinary chemical, and light industrial equipment piping systems. We provide standard-size stock and customization services, supporting non-standard angle, curvature, wall thickness, and material customization, and can provide technical selection support based on project requirements.
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Simmered Elbow
Induction bending elbows are divided into two processes: cold bending and hot bending (medium-frequency induction heating). Using seamless steel pipe or longitudinal welded pipe as the base material, they are formed by mechanical push bending at room temperature through external force, or after medium-frequency induction locally heats the pipe to a plastic state. Unlike standard stamping or hot push elbows, induction bending elbows can achieve any bending angle (30° to 180°), large curvature radius (commonly R=3D-10D), and large-diameter thick-wall forming, and can reserve straight sections at both ends for convenient on-site welding. After forming, heat treatment is provided to eliminate internal stress, ensuring mechanical properties consistent with the base material, with a smooth inner wall of the flow channel and low medium flow resistance. Product materials cover carbon steel, alloy steel, stainless steel, and pipeline steel, and can comply with domestic and international standards such as GB/T, ASME, SH, SY, and DL/T. They are widely used in high-pressure conditions such as long-distance oil and gas pipelines, thermal power plant boiler piping, chemical process piping, municipal heating pipe networks, and marine engineering, especially suitable for complex pipeline layouts with limited on-site space and the need for non-standard curved bends.
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Cast Elbow
Cast elbows are pipe fittings formed by pouring molten metal into a mold for integral casting, which can integrate complex structures such as threads, flanges, and grooves, and are suitable for medium and low pressure piping systems. We offer a variety of materials including ductile iron, malleable iron, cast steel, and stainless steel, and support anti-corrosion treatments such as galvanizing and plastic lining. The products are widely used in fire protection, water supply and drainage, HVAC, gas, and other fields, and precision-cast versions can also be used in special working conditions requiring wear resistance and heat resistance. We maintain ample stock inventory and support non-standard customization to meet the needs of different projects.
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Squeeze Elbow
Extruded elbows are pipe fittings formed plastically through hot extrusion or cold extrusion processes, with no welds on the overall body, uniform wall thickness, and mechanical properties superior to traditional welded elbows. We can produce a variety of materials including carbon steel, alloy steel, and stainless steel, with butt welding as the primary connection method. The products comply with GB/T12459 and ASME B16.9 standards. Extruded elbows are widely used in high-pressure process piping in chemical, power, and pressure vessel industries, and are also suitable for clean pipelines. We provide stock supply and non-standard customization services, supporting small-batch sampling and foreign trade export.
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Carbon Steel Elbow
Carbon steel elbows are indispensable pipe fittings in industrial piping systems, used to connect pipes and change the direction of media flow. We use high-quality carbon steel with integral forming, covering all processes including seamless, longitudinally welded, large-diameter rolled, and medium-frequency induction bending. The products feature high strength and good weldability, suitable for most media conditions such as water, gas, steam, and oil products. With complete specifications, ample stock, and high cost performance, they are the universal mainstay pipe fittings for industrial piping projects. We support customization according to national standards and American standards, as well as full-container export for foreign trade, meeting the needs of different projects. Whether for new construction projects or maintenance and replacement, we can provide reliable solutions.
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Stainless Steel Elbow
Stainless steel elbows are high-end corrosion-resistant pipe fittings used in piping systems to change the direction of media flow. They are precision-formed from austenitic stainless steel through processes such as hot pushing, cold extrusion, medium-frequency induction bending, and roll-formed welding. The products offer core advantages including acid and alkali resistance, corrosion resistance, high-temperature resistance, rust-free performance, hygienic and non-toxic properties, and long service life, making them dedicated pipe fittings for chemical, pharmaceutical, food, water purification, marine, and high-temperature applications. Mainstream material grades cover the full spectrum of 304, 304L, 316, 316L, 321, 310S, 904L, and duplex steel 2205. The products are divided into four major categories: seamless stainless steel elbows, longitudinally welded stainless steel elbows, large-diameter roll-formed stainless steel elbows, and sanitary quick-install elbows. Angles include 45°, 90°, and 180°, with support for long-radius 1.5D, short-radius 1.0D, and large-radius 3D–10D custom bends. They strictly comply with international standards including GB/T12459, GB/T13401, ASME B16.9, ASME B36.19, DIN, and JIS, and are suitable for demanding conditions such as corrosive media, high temperature and high pressure, clean and sterile environments, and seawater salt spray. Full-scenario supply is supported, including bulk stock, full-container export, and custom fabrication per non-standard drawings.
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Alloy Steel Elbow
Alloy steel elbows are core specialized pipe fittings for severe piping systems involving high temperature, high pressure, hydrogen service, abrasion resistance, and creep resistance. They are mainly made of chromium-molybdenum alloys and heat-resistant alloys, formed integrally through hot pushing, hot extrusion, medium-frequency induction bending, and precision forging. Unlike ordinary carbon steel and stainless steel fittings, alloy steel elbows possess special properties such as high-temperature strength, creep resistance, resistance to high-pressure impact, resistance to hydrogen corrosion, and no brittle fracture at low temperatures. They are irreplaceable pressure piping components for power stations, boilers, thermal power systems, coal chemical plants, and hydrogenation units. Mainstream materials include 15CrMo, 12Cr1MoVG, Cr5Mo, Cr9Mo, P11/P22/P91, and other full-series alloy grades under Chinese national standards and American standards. The products cover all processes including seamless high-pressure, thick-wall extrusion, medium-frequency large-radius induction bending, and large-diameter rolled fabrication, with standard angles of 45°, 90°, and 180°, and support custom bends with long radius, short radius, and extra-large radius from 3D to 10D. The products are strictly manufactured in accordance with GB/T12459, GB/T13401, ASME B16.9, ASTM A234, SH/T3408, and other standards, and are specifically designed for industrial conditions involving over-temperature, over-pressure, long-term continuous operation, hydrogen corrosion, and high-temperature creep. Full-mode supply is supported, including stock availability, batch engineering projects, foreign trade export, and non-standard custom fabrication according to drawings.
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