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Industrial Stainless Steel Tee
Stainless steel tees are critical pressure fittings used to merge or diverge fluid flow, and are categorized into equal-diameter and reducing tees. These products are manufactured in accordance with standards such as ASME B16.9 and GB/T 12459, with materials ranging from 304/304L to 316/316L. They are available in sizes from DN15 to DN1200 and wall thickness grades from Sch5S to XXS. Manufactured using hydraulic expansion or hot forming processes, these fittings undergo acid washing and passivation treatment prior to shipment. Non-destructive testing, such as radiographic testing, is available to ensure they meet the pressure and corrosion resistance requirements of demanding applications in the petroleum, chemical, and pharmaceutical industries.
Core Industrial Advantages
Corrosion- and High-Pressure-Resistant: Made of 304/316L stainless steel, resistant to acids, alkalis, and high temperatures, with pressure ratings ranging from Sch5S to XXS, meeting the demands of high-pressure transportation.
Stringent Standards: Manufactured in accordance with ASME B16.9 and GB/T 12459, ensuring high mating precision and low risk of leakage.
Reliable Manufacturing Processes: Hydraulic expansion or hot forming ensures uniform wall thickness, dense microstructure, and the absence of weld defects, resulting in a long fatigue life.
Surface Treatment and Inspection: Acid washing and passivation enhance corrosion resistance. Support for non-destructive testing methods, such as radiographic testing, ensures defect-free delivery.
Full Size Range: Available in sizes from DN15 to DN1200, with a complete series of equal and reducing sizes to accommodate complex piping designs.
|
Parameter |
Details / Options |
|
Product Name |
Stainless Steel Equal Tee / Reducing Tee (Butt-Weld Fittings) |
|
Design Standards |
ASME B16.9, ASME B16.25 (bevel ends), GB/T 12459, GB/T 13401, MSS SP-43 (light-wall), EN 10253 (optional) |
|
Material Grades |
• 304/304L – ASTM A403 WP304/WP304L, UNS S30400/S30403 |
|
Dimension Range |
• Nominal Pipe Size (NPS): 1/2″ – 48″ (DN15 – DN1200) |
|
Wall Thickness (Schedule) |
Sch5S, Sch10S, Sch20, Sch30, Sch40, Sch40S, Sch60, Sch80, Sch80S, Sch100, Sch120, Sch140, Sch160, XXS, STD, XS |
|
Pressure Rating |
• Class 150 – Class 2500 (based on material and schedule) |
|
Temperature Range |
• 304/304L: –196°C to 800°C (–320°F to 1472°F) |
|
Connection Ends |
Beveled ends (standard) per ASME B16.25, square ends optional, plain ends for slip-on applications |
|
Forming Process |
• Cold Forming (Hydraulic Bulging): NPS ≤ 16″ – seamless structure, uniform wall distribution |
|
Surface Treatment |
• Pickling & Passivation: Standard, removes oxide scale, restores corrosion resistance |
|
Dimensional Tolerances |
• OD tolerance: ±1.6 mm for NPS ≤ 10″; ±0.75% for NPS ≥ 12″ |
|
Inspection & Testing |
• Routine: 100% visual inspection, dimensional check (Vernier calipers, ring gauges, profile projector), material identification (PMI) |
|
Marking |
Laser etching or stamping: manufacturer's logo, standard, material grade, NPS, schedule, heat number, inspection stamp (per MSS SP-25) |
|
Packaging |
• Small sizes: Poly bag + carton + plywood pallet |
|
Certifications |
ISO 9001:2015, PED 2014/68/EU (CE marked), IBR (Indian Boiler Regulation), CRN (Canada), API Q1 (optional) |
|
Industries & Applications |
• Oil & gas – upstream, midstream, downstream |
|
Lead Time |
• Standard sizes: 7–15 days |
|
Ordering Information |
To ensure accurate specification, please provide: |
|
Optional Value-Adds |
• 3.2 certification (witnessed by third party) |
Oil & Gas Industry
Chemical & Petrochemical Industry
Power & Energy Industry
Marine Engineering & Shipbuilding
Food & Beverage Industry
Pharmaceutical & Biotechnology
Water Treatment & Environmental Engineering
HVAC & Fire Protection Systems
Semiconductor & Electronics Industry
Military & Aerospace
We maintain a year-round stock of mainstream specifications, supporting small-batch purchases and urgent order shipments to ensure stable and reliable delivery times.
We conduct full-process inspections from raw material intake to finished product shipment, utilizing equipment for spectral analysis, mechanical property testing, and non-destructive testing to ensure the traceability of every product.
We provide one-stop technical services, including standard interpretation, material selection, drawing verification, and installation guidance, to help customers select the right products and minimize procurement risks.
We support customization requests for non-standard dimensions, special materials, irregular shapes, and surface treatments to meet the unique requirements of various engineering projects.
Certified to international standards including ISO 9001, PED, and IBR, we provide EN 10204 3.1/3.2 material certificates and third-party inspection reports to meet global project access requirements.
We have established long-term partnerships with multiple international freight forwarders, offering sea, air, and land transport as well as door-to-door services to ensure safe and timely delivery to major ports and construction sites worldwide.
We provide clear quality warranty periods and have established a rapid response mechanism to promptly address quality issues and technical inquiries, ensuring the smooth operation of our customers’ projects.
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