Hot Press (Hot Push) Seamless Tee
Hot-pressed seamless tees are specialized flow-diversion pipe fittings for high-pressure, high-temperature, and corrosion-resistant industrial piping systems. They are mainly used for flow diversion and collection in industrial main pipelines, three-way directional changes in piping runs, and branch modifications in process pipeline networks. Manufactured by integral hot-push forming with no welded seams, they can withstand high temperature, high pressure, and high-intensity impact loads. They are widely used in crude oil transportation, natural gas gathering and transmission, chemical process piping, thermal power plant steam piping, urban heating pipeline networks, coal chemical industry, auxiliary piping for nuclear power, and piping systems supporting pressure vessels. Equal-diameter tees are used to distribute flow evenly across pipes of the same diameter, while reducing tees are used to divert flow when transitioning from a large pipe to a smaller pipe. The product eliminates the risks of weld cracking, pinholes, air leakage, and seepage associated with welded tees. It is suitable for pressure piping systems of special equipment and serves as an irreplaceable core flow-diversion pipe fitting in industrial high-pressure piping systems.
Inquiry
- The greatest advantage of hot-pressed seamless tees is integral hot-push one-piece forming, zero welds, and no welding defects
- Completely eliminating the risks of weld cracking, pinholes, leakage, and pipe burst. The high-temperature hot forging process makes the metal grains dense and uniform
- Accurate wall thickness, high compressive strength, good toughness, high pressure resistance, high temperature resistance, and impact resistance. The products undergo normalizing and annealing heat treatment
- Relieve internal stress
- No deformation and no bursting under long-term high-pressure operation. The pipe ends feature precision machined bevels
Detailed Introduction
Hot-pressed (hot-pushed) seamless tees are steel butt-welding seamless pipe fittings. The seamless pipe blank is heated to a high-temperature plastic state, and the branch pipe is extruded and pushed out by means of a mold, achieving integral one-time forming without any assembly welds. This process makes the metal structure dense and uniform, stabilizes wall thickness, and significantly improves pressure resistance and high-temperature performance. The product ends are machined with welding bevels and connected to the pipeline by butt welding. It is suitable for flow distribution and collection in high-pressure process pipelines in petroleum, chemical, electric power, heating, natural gas and other industries. Compared with welded fabricated tees, hot-pressed seamless tees have no hidden risks of weld defects and are a reliable choice for special equipment pressure pipeline projects. We provide three major material series: carbon steel, alloy steel and stainless steel, strictly implement GB/T12459 and ASME B16.9 standards, and can customize non-standard specifications according to project requirements.
- Integral hot-push one-piece forming, no welds, eliminating hidden risks such as weld cracking, blowholes and leakage
- High-temperature hot forging makes metal grains dense, wall thickness uniform, resistant to high pressure, high temperature and impact
- Products undergo normalizing or annealing heat treatment to eliminate internal stress and ensure stable operation under long-term high pressure
- Precisely machined pipe-end bevels ensure perfect welding alignment and high flaw detection pass rate
- Materials cover carbon steel, alloy steel and stainless steel, with pressure ratings from PN16 to PN100 and American standard SCH40 to SCH160
- Executes GB/T12459 and ASME B16.9 standards, suitable for special equipment pressure pipeline projects
| Product Name | Hot-pressed (hot-extruded) Seamless Tee |
| Category | Please contact us to confirm |
| The main body materials of hot-pressed seamless tees are divided into three major systems: carbon steel, alloy steel and stainless steel, with high material purity and stable mechanical properties. Pressure ratings cover high-pressure grades PN16, PN25, PN40, PN63 and PN100, and American standard SCH40 to SCH160 thickened high-pressure specifications are fully available. Temperature resistance range | Carbon steel -20℃ to 425℃, alloy steel can reach above 550℃, stainless steel can withstand high temperature of 600℃ and strong corrosive media. Products comply with GB/T12459 and ASME B16.9 standards, integrally formed seamless in one piece, inspected by X-ray and ultrasonic non-destructive testing. Pipe end welding bevels are standard, wall thickness is uniform, roundness is precise, and material is dense. Supports four severe working conditions: high pressure, high temperature, low temperature, and corrosion resistance. All parameters meet the national acceptance standards for pressure pipeline special equipment. |
| Customization | Our factory has strong capabilities in non-standard customization of industrial pipe fittings and high-end OEM manufacturing, and can undertake customization of various high-pressure special-shaped seamless tees. Supports customization of extra-large diameter, extra-thick wall thickness, non-standard reducers, special angles, and special-shaped structure seamless tees. Can customize special materials such as 20#, 16Mn, Cr5Mo, P91, 304, 316L. Supports mold production according to American standard, European standard, German standard, and non-standard drawings. Can customize precision bevels, special lengths, and special heat treatment processes according to customer requirements. Supports laser marking of LOGO, batch number, standard, and material for OEM branding. Can customize export-specific packaging, engineering supporting documentation, and batch OEM/ODM production. Customization process is mature, with high precision and 100% inspection pass rate, capable of meeting high-end heavy industry needs at home and abroad. |
| MOQ | Our factory's hot-pressed seamless tees support flexible purchasing modes, suitable for sample orders, replenishment orders, engineering batch orders, and foreign trade full-container orders. Conventional stock specifications have a minimum order quantity of 1 piece, supporting urgent on-site replenishment, sample delivery for inspection, and small orders for maintenance and renovation. For conventional engineering batch procurement, the MOQ is 10 pieces, enjoying tiered wholesale prices. For foreign trade export, the conventional MOQ is 50 pieces, supporting mixed specifications of multiple sizes. |
| Lead Time | Our factory has fully automatic hot-push forming production lines, heat treatment equipment, and precision turning bevel production lines, with stable production capacity and efficient delivery. Conventional DN20-DN300 standard wall thickness products are in sufficient stock, with rapid delivery within 24 hours to meet urgent engineering material replenishment needs. Conventional non-standard specifications and medium-to-large diameter products are completed within 3-7 working days. SCH thickened high-pressure, alloy steel, and stainless steel products are produced according to order. |
| Packaging | Hot-pressed seamless tees adopt heavy-duty industrial-grade thickened protective packaging, suitable for domestic long-distance freight and international ocean shipping export. Small products are wrapped with bubble film and reinforced with cartons; medium-to-large diameter and heavy pipe fittings are protected with multiple layers of straw rope, woven belts, and rain-proof film. All pipe ends are fitted with plastic protective caps to prevent bevel collision, deformation, and scratching, ensuring welding port precision. Large items are packed on solid wood pallets, sturdy and compression-resistant, preventing cracking and deformation. Each batch is accompanied by material certificates, inspection reports, certificates of conformity, and factory inspection documentation. Outer cartons are marked with specifications, material, standard, weight, and batch number information. The overall packaging is moisture-proof, shock-proof, wear-resistant, and resistant to long-distance vibration, suitable for full-truck land transport, container ocean shipping, and long-term overseas warehousing and transportation requirements, with zero damage in foreign trade export. |
| Reference Price | Inquiry |
Applications
- Petrochemical engineering companies use them for process pipeline diversion and collection in oil refineries and chemical plants.
- Used by EPC contractors in power plants for high-temperature, high-pressure steam piping systems
- Used by heating network contractors for mainline connections in district heating systems
- Used by natural gas pipeline contractors for gathering, transmission, and long-distance pipelines in oil and gas fields
- Used by pressure vessel manufacturers and industrial equipment installation companies for piping integration
Overview
Hot-pressed (hot-pushed) seamless tees are steel butt-welding seamless pipe fittings. The seamless pipe blank is heated to a high-temperature plastic state, and the branch pipe is extruded and pushed out by means of a mold, achieving integral one-time forming without any assembly welds. This process makes the metal structure dense and uniform, stabilizes wall thickness, and significantly improves pressure resistance and high-temperature performance. The product ends are machined with welding bevels and connected to the pipeline by butt welding. It is suitable for flow distribution and collection in high-pressure process pipelines in petroleum, chemical, electric power, heating, natural gas and other industries. Compared with welded fabricated tees, hot-pressed seamless tees have no hidden risks of weld defects and are a reliable choice for special equipment pressure pipeline projects. We provide three major material series: carbon steel, alloy steel and stainless steel, strictly implement GB/T12459 and ASME B16.9 standards, and can customize non-standard specifications according to project requirements.
Key Selling Points
- Integrally formed by hot push in one piece, no welds, eliminating risks of weld cracking, pinholes, and leakage - High-temperature hot forging makes metal grains dense, wall thickness uniform, resistant to high pressure, high temperature, and impact - Products undergo normalizing or annealing heat treatment to eliminate internal stress, ensuring stable operation under long-term high pressure - Pipe ends are precision machined with bevels for perfect welding fit and high inspection pass rate - Materials cover carbon steel, alloy steel, and stainless steel, with pressure ratings from PN16 to PN100, and American standard SCH40 to SCH160 - Complies with GB/T12459 and ASME B16.9 standards, suitable for special equipment pressure pipeline projects
Applications
- Petrochemical engineering companies use them for process pipeline diversion and collection in oil refineries and chemical plants - Electric power construction general contractors use them for high-temperature and high-pressure steam pipeline systems in power plants - Thermal pipeline network construction units use them for main pipeline connections in urban central heating systems - Natural gas pipeline engineering contractors use them for oil and gas field gathering, transmission, and long-distance pipelines - Pressure vessel equipment manufacturers and industrial equipment installation companies use them for supporting pipelines
Specifications
Product Name: Hot-pressed (hot-pushed) seamless tee Product Category: Please contact us to confirm. The main body materials of hot-pressed seamless tees are divided into three major systems: carbon steel, alloy steel, and stainless steel, with high material purity and stable mechanical properties. Pressure ratings cover PN16, PN25, PN40, PN63, PN100 high-pressure grades, and American standard SCH40 to SCH160 thickened high-pressure specifications are complete. Temperature resistance range: carbon steel -20℃～425℃, alloy steel can reach above 550℃, stainless steel can withstand 600℃ high temperature and strongly corrosive media. The product implements GB/T12459 and ASME B16.9 standards, is integrally seamless and formed in one piece, and has undergone X-ray and ultrasonic non-destructive flaw detection. Pipe end welding bevels are standard, wall thickness is uniform, roundness is precise, and material is dense. It supports the four severe working conditions of high pressure, high temperature, low temperature, and corrosion resistance, and all parameters comply with the national acceptance standards for special pressure pipeline equipment. Customization capability: Our factory has strong non-standard customization and high-end OEM capabilities for industrial pipe fittings, and can undertake customization of various high-pressure special-shaped seamless tees. Supports customization of seamless tees with extra-large diameters, extra-thick wall thickness, non-standard reducing, special angles, and special-shaped structures. Can customize special materials such as 20#, 16Mn, Cr5Mo, P91, 304, 316L, etc. Supports mold-opening production according to American standard, European standard, German standard, and non-standard drawings. Can provide customization of precision bevels, special lengths, and special heat treatment processes according to customer requirements. Supports laser marking of LOGO, batch number, standard, and material for OEM production. Can customize export-specific packaging, engineering supporting documents, and mass OEM/ODM production. The customized process is mature, with high precision and a 100% flaw detection qualification rate, and can meet the needs of domestic and international high-end heavy industry. Minimum order quantity: Our factory's hot-pressed seamless tees support flexible purchasing modes, suitable for sample orders, replenishment orders, engineering bulk orders, and foreign trade full-container orders.Conventional in-stock specifications have a minimum order quantity of 1 piece, supporting urgent site replenishment, sample submission for inspection, and small-order purchases for maintenance and modification. The MOQ for conventional engineering bulk procurement is 10 pieces, with tiered wholesale prices. The conventional MOQ for foreign trade export is 50 pieces, supporting mixed multiple specifications. Delivery cycle: Our factory has fully automatic hot-push forming production lines, heat treatment equipment, and precision turning and beveling assembly lines, with stable production capacity and efficient delivery. Conventional DN20-DN300 standard wall thickness products are sufficiently stocked and can be shipped quickly within 24 hours, meeting urgent engineering material replenishment needs. Conventional non-standard specifications and medium-to-large diameter products are completed in 3-7 working days. SCH thickened high-pressure, alloy steel, stainless. Packaging method: Hot-pressed seamless tees use heavy-industry-grade thickened protective packaging, suitable for domestic long-distance freight and international sea export. Small products are wrapped in bubble film and reinforced with cartons; medium-to-large diameter and heavy pipe fittings use multiple layers of protection including straw rope, woven straps, and rainproof film. All pipe ends are equipped with plastic protective caps to prevent bevel collisions, deformation, and scratches, ensuring welding port precision. Large items are packed on solid wood pallets, which are sturdy and pressure-resistant, preventing cracking and deformation. Each batch is accompanied by material certificates, flaw detection reports, qualification certificates, and factory inspection documents. The outer box is marked with specifications, material, standard, weight, and batch number information.The overall packaging is moisture-proof, shock-proof, wear-resistant, and resistant to long-distance bumps, and can meet the requirements of full-vehicle land transportation, container sea transportation, and long-term overseas warehousing and transportation, with zero damage in foreign trade exports. Reference price: inquiry
Procurement & Delivery
Reference price: Inquiry required MOQ: Our factory's hot-pressed seamless tees support a flexible procurement model, accommodating sample orders, replenishment orders, engineering batch orders, and full-container foreign trade orders. Conventional in-stock specifications have a minimum order of 1 piece, supporting urgent on-site replenishment, inspection samples, and small maintenance and renovation orders. Conventional engineering batch procurement has an MOQ of 10 pieces, qualifying for tiered wholesale pricing. Conventional foreign trade export MOQ is 50 pieces, supporting mixed specifications. Delivery time: Our factory has fully automatic hot-push forming production lines, heat treatment equipment, and precision beveling machining lines, with stable production capacity and efficient delivery times. Conventional DN20-DN300 standard wall thickness products are abundantly in stock and can be shipped within 24 hours, meeting urgent engineering material replenishment needs. Conventional non-standard specifications and medium-to-large diameter products are completed within 3-7 working days. SCH thickened high-pressure, alloy steel, stainless... Packaging description: Hot-pressed seamless tees use heavy-industry industrial-grade thickened protective packaging, suitable for domestic long-distance freight and international ocean shipping export. Small items are wrapped in bubble film and reinforced with cartons; medium-to-large diameter and heavy pipe fittings are protected with multiple layers of straw rope, woven strapping, and rainproof film. All pipe ends are fitted with plastic protective caps to prevent bevel impact damage, deformation, and scratching, ensuring the precision of welding ends. Large items are packed on solid wooden pallets, firm and compression-resistant, preventing cracking and deformation. Each batch is accompanied by material certificates, flaw detection reports, certificates of conformity, and factory inspection documentation. The outer carton is marked with specification, material, standard, weight, and batch number information. The overall packaging is moisture-proof, shock-proof, wear-resistant, and resistant to long-distance vibration, capable of meeting full-truck land transport, container ocean shipping, and long-term overseas warehousing and transportation requirements, with zero breakage in foreign trade exports.
Service & Support
Customization capability: Our factory has strong capabilities in non-standard customization of industrial pipe fittings and high-end OEM manufacturing, and can undertake customization of various high-pressure special-shaped seamless tees. Supports customization of extra-large diameters, extra-thick wall thicknesses, non-standard reducers, special angles, and special-shaped structure seamless tees. Can customize special materials such as 20#, 16Mn, Cr5Mo, P91, 304, 316L, etc. Supports mold production according to American standard, European standard, German standard, and non-standard drawings. Can perform precision beveling, special lengths, and special heat treatment process customization according to customer requirements. Supports laser marking of LOGO, batch number, standard, and material OEM branding. Can customize export-specific packaging, engineering supporting documentation, and batch OEM/ODM manufacturing. The customization process is mature, with high precision and a 100% flaw detection pass rate, capable of meeting high-end heavy industry engineering customization needs both domestically and internationally. After-sales support: Our factory provides industrial-grade high-standard after-sales warranty services. All hot-pressed seamless tees carry a three-year warranty with lifelong technical support. 100% of products undergo ultrasonic and X-ray non-destructive testing before leaving the factory, ensuring no products with pinholes, cracks, laminations, or substandard materials leave the factory. If non-artificial quality defects, material mismatches, cracking, or leakage problems occur, free replacement and unconditional after-sales service are provided. Full logistics tracking throughout the process, with free reshipment for products damaged by transportation impact, deformation, or breakage. Provides free technical services including pipeline selection, welding process guidance, and high-pressure pipeline solution consultation. Supports reissuance of qualification documents, batch quality assurance coordination, and long-term engineering supply guarantees. One-on-one dedicated customer service liaison with rapid after-sales response, ensuring engineering safety and customer procurement interests to the greatest extent. Certification/Qualification: Please contact us to confirm
FAQ
What is the difference between a hot-pressed seamless tee and an ordinary welded tee?
A hot-pressed seamless tee is integrally formed through overall hot-push forming with no weld seams, so there are no hidden risks such as weld seam cracking, pinholes, or leakage, making it suitable for high-pressure special equipment pipelines. In contrast, welded tees carry the risk of weld seam defects and generally cannot be used in high-pressure working conditions.
Can hot-pressed seamless tees pass non-destructive flaw detection testing?
Yes. All our products undergo X-ray and ultrasonic non-destructive testing before leaving the factory, with a high inspection pass rate, and they can meet the requirements of engineering supervision and special equipment acceptance.
What is the maximum pressure rating?
We can produce PN100 ultra-high pressure ratings as well as American Standard SCH160 extra-thick wall styles. The specific pressure rating can be confirmed based on your working condition requirements.
Do you support export trade?
Yes. We implement the American Standard ASME B16.9 and the National Standard GB/T12459, can provide multilingual services, and adopt export packaging suitable for sea freight. Please contact us to confirm export requirements.
Question: What is the difference between a hot-pressed tee and an ordinary welded tee? Answer: Hot-pressed integral seamless one-piece forming.
Please contact us and provide the specific specifications, purchase quantity, and delivery requirements, and we will assist in confirming a suitable solution.
Submit Inquiry
Please fill in the following information, and we will contact you as soon as possible to provide product solutions or quotes based on your needs.