Stainless Steel Cross
The stainless steel crosses we supply cover materials such as 304, 304L, 316L, 310S, 2205 duplex steel, 904L super stainless steel, etc., with diameters from DN6 to DN4000, and pressure ratings covering 150LB–9000LB and PN10–PN160. Products are divided into five major series: seamless one-piece, high-pressure forged, large-diameter plate-welded, precision cast, and sanitary quick-install, and are manufactured to standards such as GB/T12459, GB/T13401, ASME B16.9, ASME B16.11, SH/T3408, ISO, DIN, JIS, etc. Compared with carbon steel and cast iron crosses, it is more suitable for working conditions such as humidity, acid and alkali, salt spray, and high-temperature oxidation, and can reduce rusting and secondary contamination of the medium. Before purchasing, you can contact us to confirm the specific material, diameter, pressure rating, process series, and surface treatment requirements.
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Alloy Steel Cross
Alloy steel cross fittings belong to special pressure-bearing cross pipe fittings, with materials mainly consisting of chromium-molybdenum heat-resistant alloy steels such as 15CrMo, 12Cr1MoV, Cr5Mo, Cr9Mo, P11, P12, P22, F11, and F22, formed through integral forging, heat treatment, and precision machining. Compared with carbon steel and stainless steel crosses, they are designed for high-temperature above 450°C, high-pressure hydrogen service, and high-temperature creep conditions. Ordinary pipe fittings are prone to strength degradation, creep deformation, or hydrogen embrittlement cracking in such environments, whereas alloy steel crosses rely on a stable alloy metallographic structure and possess properties such as high-temperature resistance, high-pressure resistance, hydrogen corrosion resistance, high-temperature oxidation resistance, and creep prevention. Product diameters cover DN6–DN600, pressure ratings cover 3000LB–9000LB and PN100–PN160, suitable for Sch80, Sch160, and XXS thickened wall thicknesses, and comply with GB/T12459, GB/T14383, ASME B16.9, ASME B16.11, GD electric power standards, and SH/T petrochemical standards. They are mainly used in power station boiler superheaters, reheaters, main steam pipelines, as well as high-temperature and high-pressure pipeline systems in refining, hydrogenation, coal chemical, and other installations.
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Special Steel Cross
Special steel cross fittings differ from ordinary carbon steel, conventional stainless steel, and ordinary chrome-molybdenum alloy steel cross fittings, and are mainly designed for highly corrosive, ultra-low temperature, high chloride ion, strong acid and strong alkali, high-purity, and high-speed erosion and wear working conditions that conventional pipe fittings cannot handle. The products are formed by integral forging, precision hot pushing, CNC precision machining, and solution passivation processes, and comply with ASME B16.9, ASME B16.11, GB/T12459, GB/T14383, and ASTM special material standards, and are suitable for STD, Sch40, Sch80, Sch160, and XXS wall thickness grades. Materials can be selected from duplex steel, super duplex steel, low-temperature steel, copper-nickel alloy, Monel, Hastelloy, nickel-based alloy, high-manganese wear-resistant steel, and other series, and support customization of DN6-DN800 non-standard sizes, special thickened wall thicknesses, non-standard inclined cross fittings, extended high-pressure straight pipe sections, special thread profiles, non-standard flange hole spacing, and eccentric special-shaped transition structures. For specific material matching, pressure ratings, and process solutions, please contact us to confirm.
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Carbon Steel Branch Outlet
Carbon steel branch outlet (also called saddle, branch reinforcement pad) is used to create an opening on the side wall of the main pipe to lead out a branch, commonly found in pipeline systems for petroleum, chemical, power, and other industries. The product is forged from carbon steel, comes with a self-reinforcing structure, and can complete the branch simply by welding onto the outer wall of the main pipe, without the need to cut the entire main pipe, which helps shorten on-site construction time. Material options include A105, Q235B, A350 LF2, etc. Pressure coverage includes American standard Class150 to Class1500 and national standard PN10 to PN100. Main pipe compatibility ranges from DN20 to DN800, and branch pipe compatibility ranges from DN15 to DN300. Connection methods include butt welding, socket welding, and threading. It can be produced according to standards such as ASME and GB, and also supports customization of non-standard sizes and angles. Before purchasing, it is recommended to confirm the medium, temperature, pressure rating, connection method, and required specifications. You are welcome to contact us for assistance with selection and quotation.
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Stainless Steel Branch Outlet
The stainless steel branch outlets (forged branch fittings/Olets) we supply are integrally forged and formed in accordance with the MSS SP-97 standard, and are manufactured through die forging, heat treatment, and precision machining. During installation, a hole is opened directly in the wall of the main pipe to lead out the branch pipe, without the need to cut off the main pipe; they come with an integrated reinforcement structure used to distribute stress at the opening location. In terms of material, A182 F304, F304L, F316, and F316L are conventionally selected, and special stainless steels such as F321, F347H, and F904L can also be confirmed according to project requirements. Connection forms include butt welding, socket welding, threaded, and 45° miter, with pressure ratings covering 2000LB to 9000LB, specifications from DN6 to DN100, and pipe wall coverage from SCH40 to XXS. The products are mainly used in scenarios such as chemical acid and alkali fluid pipelines, food and pharmaceutical clean pipelines, seawater desalination transportation pipelines, new energy process pipelines, and high-temperature steam pipelines. Standard specifications are in stock, and non-standard customization according to drawings is also supported.
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Alloy Steel Branch Outlet
Alloy steel branch outlet (forged alloy steel branch outlet fitting / Alloy Steel Olet) is integrally die-forged in accordance with MSS SP-97, GB/T19326, and ASME B31.3 standards, and is manufactured from alloy steel forged blanks through forging, heat treatment, and precision machining. Its function is to open a hole in the side wall of the main pipe to lead out a branch, completing a pipeline branch without cutting off the main pipeline; the integrated forged body has a built-in reinforcement structure, used to disperse stress at the opening. Connection forms include butt welding, socket welding, threaded, and 45° mitered, with specifications covering DN6-DN100 and pressure ratings covering 2000LB-9000LB. Commonly used materials include A182 F11, F12, F22 chrome-molybdenum alloy steel, as well as F5, F9 heat-resistant chrome steel and F91, F92 martensitic heat-resistant alloy steel. The conventional working temperature is -29℃ to 650℃, and F91/F92 materials can withstand higher temperature working conditions. We simultaneously support standard in-stock supply and non-standard customization according to drawings.
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Duplex Stainless Steel Branch Outlet
Duplex steel branch outlet (forged duplex steel branch outlet fitting, Duplex Steel Olet) is integrally die-forged in accordance with MSS SP-97, GB/T19326, and ASME B31.3 standards, and belongs to the integrated reinforced type pipe branch fitting. The product does not require cutting the main pipe; it is directly welded to the outer wall of the main pipe to achieve branch outlet extraction, and comes with an integrated reinforcement structure, used to resolve stress concentration at the pipe opening location. Duplex steel combines austenitic and ferritic structures, with a yield strength approximately 2 times that of ordinary 316L stainless steel, and performs outstandingly in resistance to chloride ion pitting corrosion, crevice corrosion, and sulfide stress corrosion cracking, making it suitable for highly corrosive working conditions such as seawater, salt spray, and acidic media. Connection forms include butt welding, socket welding, threaded, 45° miter, etc., with nominal diameters covering DN6-DN100. We support standard stock items and non-standard customization according to drawings, and can provide grade options such as 2205, 2507, 2101, and 2304.
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Low-temperature steel branch outlet
Low-temperature steel branch pipe outlets belong to integrated reinforced pipeline branch fittings. They are integrally die-forged and formed in accordance with MSS SP-97, GB/T19326, ASME B31.3, and ASME B31.8 standards, and are manufactured through forging, low-temperature heat treatment, impact testing, and precision machining. The product does not require cutting the main pipe; it is directly welded onto the outer wall of the main pipe to lead out a branch pipe. It comes with an integrated reinforcement structure, used to disperse stress at the pipe opening position and reduce the risk of brittle fracture and medium leakage caused by stress concentration in low-temperature environments. The materials are mainly ASTM A350 LF2 and A350 LF3 low-temperature forged steel. LF2 is suitable for temperatures from -46°C to 425°C, and LF3 is suitable for low temperatures down to -101°C. Pressure ratings cover American standard 2000LB, 3000LB, 6000LB, and 9000LB, nominal diameters from DN6 to DN100, wall thicknesses from SCH40 to XXS, and connection forms include butt welding, socket welding, NPT threads, and 45° miter joints. The main target customers are LNG engineering general contractors, air separation equipment installation contractors, low-temperature chemical infrastructure enterprises, oil and gas low-temperature transportation pipeline network construction units, as well as low-temperature pipe fitting traders and design institute selection personnel.
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Nickel-based alloy branch outlet
Nickel-based alloy branch outlet (forged nickel-based alloy branch outlet, Nickel Alloy Olet) is directly welded to the outer wall of the main pipe to lead out a branch pipe. It has an integral reinforcement structure, used to disperse stress at the pipe opening position and reduce the risk of cracking and medium leakage caused by stress concentration under high-temperature and highly corrosive working conditions. The product uses nickel as the base material and can withstand strong acids and alkalis, chloride ions, hydrogen sulfide, and high-temperature oxidizing environments, combining high-temperature strength and creep resistance. Connection forms include butt welding, socket welding, threaded, and 45° miter. Nominal diameters cover DN6-DN100, pressure ratings cover 2000LB-9000LB, and wall thicknesses cover SCH40S to XXS. It supports standard stock items and non-standard customization according to drawings, and is intended for pipe branch supporting in fine chemicals, hydrometallurgy, high-temperature desulfurization, deep-sea oil and gas, nuclear power auxiliary pipelines, and high-purity fluid projects.
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