Russian standard elbow
Russian-standard elbows are used to change the direction of pipeline medium conveyance. They are butt-welded pipe fittings produced according to the GOST 17375-2001 standard, while also referencing Russian-standard pipe fitting specifications such as GOST 30753 and GOST 17380. The nominal diameter adopts the DN metric system. Conventional angles include 45°, 90°, and 180°. Bending radii include two series: 1.5D long radius and 1.0D short radius. The seamless process covers DN15-DN600, and the rolled process covers DN600-DN1200. Materials include Russian-series grades such as Ст20 carbon steel, 09Г2С low-temperature weather-resistant steel, 15ХМ alloy steel, and 12Х18Н10Т stainless steel. Among them, 09Г2С low-temperature steel can adapt to extreme cold working conditions of -60°C, while carbon steel and alloy steel can adapt to working conditions from normal temperature up to 450°C. Product dimensional tolerances, bevel forms, heat treatment, and non-destructive testing are executed according to Russian-standard technical requirements, and can be supplied as complete sets with Russian-standard tees, branch outlets, and flanges. For each order, Chinese-Russian bilingual inspection reports, material certificates, and factory documents can be provided for project acceptance in Russian-speaking regions.
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European standard elbow
European standard elbows are produced in accordance with the EU EN series pipe fitting standards. Pressure-bearing elbows primarily implement EN 10253-2, while non-pressure-bearing elbows implement EN 10253-1, and they simultaneously comply with the PED 2014/68/EU Pressure Equipment Directive, and are compatible with the EN 10216 and EN 10217 European standard steel pipe systems. Production processes include seamless hot-push forming, steel plate rolled and welded forming, and forged forming. Materials cover European standard grades such as P235GH carbon steel, P355GH/P355NL low-alloy steel, 16Mo3 heat-resistant steel, 1.4301/1.4404 stainless steel, and duplex steel. Specifications adopt the DN metric nominal diameter system, with nominal diameters from DN15 to DN1200, conventional angles of 45°, 90°, and 180°, and bending radii divided into two series: 1.5D long radius and 1.0D short radius, with pressure adaptation from PN16 to PN160. Dimensional tolerances, beveling, heat treatment, non-destructive testing, and mechanical properties are implemented in accordance with EU regulations. They can be supplied as complete sets with European standard tees, branch outlets, and flanges, and support the issuance of EN10204 3.1/3.2 material certificates.
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DIN standard elbow
German standard elbows are used to change the direction of pipeline medium conveyance and are directional pipe fittings in German industrial pressure pipelines. The products adopt seamless hot pushing, steel plate rolling, and die forging forming processes. The mainstream grades include St37.2 carbon steel, P265GH pressure-bearing carbon steel, 16Mo3 heat-resistant alloy steel, and 1.4301/1.4404 stainless steel. Specifications adopt DN metric nominal diameter. Conventional angles include 45°, 90°, and 180°. Bending radii include 1.0D short radius, 1.5D standard long radius, and 3D large radius. The products implement German precision requirements in dimensional tolerances, roundness, end face flatness, heat treatment, and non-destructive testing, and can be supplied as complete sets with German standard tees, branch outlets, and flanges. Before purchasing, it is recommended to confirm the applicable standard version, material grade, DN specification, wall thickness grade, angle, and bending radius. You are welcome to contact us for assistance with selection and quotation.
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British Standard elbow
British standard elbows are produced according to the British BS series pipe fitting standards. Current projects implement BS EN 10253-1/10253-2, while old renovation projects are compatible with BS 1965, and they are matched with the BS 3606 steel pipe standard, meeting the PED pressure equipment directive. The products use seamless hot pushing, steel plate rolling, and forging forming processes. Nominal diameters cover DN15 to DN1200, conventional angles are 45°, 90°, and 180°, and bending radii are mainly 1.0D short radius and 1.5D long radius, with support for 3D large radius customization. Materials cover P235GH carbon steel, P355NL low-temperature steel, 16Mo3 heat-resistant alloy steel, 1.4301/1.4404 stainless steel, and duplex steel. Wall thickness grades include STD, XS, and XXS, adapting to pressure ratings from PN16 to PN160. Dimensional tolerances, roundness, beveling, heat treatment, and non-destructive testing are carried out according to British industrial specifications. Weldability is good, and they can be supplied as complete sets with British standard tees, branch outlets, and flanges.
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Japanese standard elbow
Japanese standard elbows are used to change the direction of media transport in pipelines. They are produced according to Japanese JIS industrial standards. Ordinary piping follows JIS B2311, while high-pressure boilers and process piping follow JIS B2312. Specifications use the Japanese A series nominal diameter, covering 15A to 1200A, and can also be compatible with DN metric designation. Conventional angles are 45°, 90°, and 180°. Bending radii are mainly 1.0D short radius and 1.5D long radius, and special radius customization is also supported. Materials include SS400 carbon steel, SGP piping steel, STPG370, STPT410 high-pressure carbon steel, SUS304/SUS316L stainless steel, and heat-resistant alloy steel. Forming processes include seamless hot pushing, steel plate rolling, and die forging. They can be supplied as complete sets with Japanese standard tees, branch outlets, and flanges. Before purchasing, it is recommended to provide Japanese drawings or specific nominal diameter, material, wall thickness grade, angle, and quantity. We will assist in confirming the configuration and providing a quotation.
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Non-standard elbow
Non-standard elbows are mainly used in pipeline turns, spatial avoidance, equipment connection, and pipeline network renovation projects where standard pipe fittings cannot be adapted. Unlike standard elbows, their bending angle, bending radius, nominal diameter, wall thickness, groove form, and end face form can all be re-determined according to customer drawings or on-site dimensions, so they are more suitable for working conditions such as old equipment renovation, imported unit connection, piping in narrow spaces, and irregular pipeline routing. Forming processes include seamless hot pushing, steel plate rolling, bending, die forming, and forging, and material options include carbon steel, stainless steel, low-temperature steel, alloy steel, duplex steel, and nickel-based alloy. We can arrange heat treatment, non-destructive testing, sandblasting, pickling and passivation, and anti-corrosion coating treatments according to the working conditions, and provide material certificates, testing reports, and factory inspection documents as needed. Before purchasing, it is recommended to provide drawings or on-site dimensions, angle, radius, installation distance, material, and quantity, and we will assist in confirming the structure, process, and quotation.
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National Standard Tee
National standard tees are produced in accordance with Chinese national standards. Seamless tees comply with GB/T 12459, and steel plate butt-welded tees comply with GB/T 13401. They are core pipe fittings used for flow diversion and convergence in domestic pressure piping systems. Products are divided into equal-diameter tees and reducing tees. DN15 to DN600 are mostly formed by integral seamless stamping, while sizes above DN600 are formed by steel plate die pressing and rolling. Commonly used materials include 20# carbon steel, Q235B, 16Mn, 304, and 316L stainless steel. Wall thickness grades include STD, XS, and XXS, corresponding to pressure ratings from PN10 to PN100. Dimensional tolerances, bevels, and mechanical properties are implemented in accordance with national standards, and they can be used in combination with national standard elbows, flanges, and reducers. We can provide flaw detection, hydrostatic testing, and material spectral testing according to project requirements, along with factory documentation, for domestic engineering submission and approval, bidding, and overseas Chinese-funded projects. For specific specifications, materials, and testing requirements, please contact us to confirm.
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American standard tee
American standard tees belong to the butt-welded pressure pipe fittings under the ASME system, and are mainly used at positions for main pipeline branching, branch merging, and reducing connections. The products are formed according to ASME B16.9, high-pressure fittings can comply with MSS SP-75, and the supporting pipeline size systems are ASME B36.10M and ASME B36.19M, so they can be used together with American standard elbows, flanges, and reducers. Structurally, they are divided into seamless stamped tees and steel plate rolled and welded tees; small and medium diameters of NPS24 and below adopt integral hot stamping forming, while large diameters adopt steel plate pressing and welding forming. Commonly used materials include A106B and A234 WPB carbon steel, A403 WP304 and WP316L stainless steel, as well as A234 WP11/WP22 alloy steel. Specifications use NPS inch diameters, wall thickness covers Sch40, Sch80, Sch160, and XXS, and pressure pound ratings can adapt to 150LB to 1500LB. UT/MT non-destructive testing, hydrostatic testing, material spectral inspection, and EN10204 3.1/3.2 certificates can be provided according to project requirements.
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Russian standard tee
Russian-standard tees are produced in accordance with GOST 17376-2001, with general technical conditions implemented per GOST 17380-2001, formed by hot pressing and seamless forging processes, with end faces machined to standard butt-welding bevels, and can be directly butt-welded to Russian-standard seamless steel pipes. Nominal diameters cover DN15-DN1000, outer diameters range from 21.3 mm to 1016 mm, wall thicknesses range from 2 mm to 60 mm, covering three major categories: equal-diameter, reducing, and 45° Y-type. Materials include 20# carbon steel, 16Mn low-alloy steel, 304 and 316L stainless steel, with conventional pressure ratings of PN10-PN160 and a temperature resistance range of -60°C to 450°C. Non-destructive testing, hydrostatic pressure testing, and spectral material analysis are performed before delivery, and Russian-language factory documentation can be provided, suitable for overseas engineering acceptance, customs clearance, and project bidding. The products are mainly aimed at oil and gas, chemical, power, urban heating, and gas pipeline network projects in Commonwealth of Independent States countries such as Russia, Kazakhstan, and Belarus.
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