S&S Stainless Steel Tee

At S&S Stainless International, we supply high-quality stainless steel tees in both equal tee and reducing tee designs, manufactured to meet the dimensional and performance standards of ASME B16.9, DIN, and JIS.

Overview

A stainless steel tee is a T-shaped pipe fitting used to either combine or split fluid flow in a piping system. It features three outlets—one inlet and two outlets at 90-degree angles—making it a key component in industrial pipelines that require branch connections. 

S&S Stainless International provides stainless steel pipe tees in a variety of sizes, wall thicknesses (such as SCHE 5S, SCH 10S, SCH 40S, and SCH 80S), and material grades including 304/304L, 316/316L, and duplex stainless steel. All products undergo strict dimensional checks and quality inspections to ensure compliance with industry standards and smooth installation.

product introduction

  • Reducing Stainless Steel Tee: A reducing tee is a type of pipe fitting shaped like a “T” with two outlets of the same size and a third outlet that is smaller. This design is used to branch off or merge flow while accommodating a reduction in pipe diameter, allowing for a change in the size of the piping system.

Industrial Applications of Stainless Steel Tees

Stainless steel tees are important components used across various industries for pipeline systems requiring connections between pipes of different diameters. Here are some of the main applications:

  • Oil and Gas Industry: Stainless steel tees are essential for creating reliable branching connections in pipelines, enhancing flow management in oil and gas applications.
  • Chemical Processing: These fittings allow for the safe mixing of chemicals while providing excellent corrosion resistance.
  • Water Treatment: Stainless steel tees are crucial in water treatment facilities, ensuring effective flow distribution in various systems.
  • Pharmaceuticals: They ensure sanitary connections during the production of pharmaceutical products, maintaining hygiene standards.
  • Food and Beverage: Stainless steel tees facilitate hygienic fluid transfer in food processing, crucial for maintaining quality and safety.
Custom stainless steel elbow welded to flange from S&S Stainless International.

Custom Stainless Steel Fittings by S&S Stainless International

At S&S Stainless International, we understand that standard off-the-shelf reducers cannot always meet the complex requirements of specialized industrial piping layouts. Beyond our standard inventory of concentric and eccentric reducers, we provide fully customized stainless steel reducer fabrication tailored to your exact operational requirements.

Whether your project calls for non-standard wall thicknesses, steep reduction ratios across multiple pipe sizes, extended fitting lengths, or specialized alloy materials, our facility utilizes advanced forming and precision welding technologies to manufacture reducers to exact tolerances.

Why Choose S&S Stainless International

Comprehensive Product Range

S&S Stainless International proudly manufactures a full lineup of stainless steel fittings, including reducers, elbows, tees, caps, and more

Precision Engineering

Our experienced engineering team specializes in both pipes and fittings, ensuring seamless connections for your piping systems

High-Quality Standards

S&S Stainless International manufactures stainless steel fittings, meeting ASTM, ASME, JIS, DIN, and EN international standards

Global Presence and Support

With 30 years of experience as YES Stainless, S&S Stainless International is well-positioned to serve clients worldwide.

FAQs

1. What is the operational difference between an Equal Tee and a Reducing Tee?

The main distinction depends on branch line sizing and flow distribution:

  • Equal Tees: Have three openings of the exact same diameter. They are used when fluid or gas flow needs to split or merge into branch lines of identical size without changing velocity or pressure profile.

  • Reducing Tees: Feature a branch outlet with a smaller diameter than the main run line. They allow you to connect a smaller branch pipe directly without needing an additional reducer fitting, saving space and reducing welding costs.

We supply stainless steel tees in wall thickness schedules from Schedule 10S and 40S to heavy-wall Schedule 80S, 160, and XXS. Standard material grades include dual-certified ASTM A403 WP304/304L and WP316/316L, as well as duplex (UNS S31803 / S32205) and specialized corrosion-resistant alloys for extreme operating conditions.

Our tees are manufactured to meet or exceed ANSI/ASME B16.9 (butt-weld fittings), ASME B16.11 (forged socket-weld/threaded fittings), DIN 2615, and EN 10253 specifications. Every shipment includes EN 10204 3.1 Material Test Reports (MTRs) detailing chemical composition, heat numbers, and mechanical properties for full project traceability.

Yes. If your project requires non-standard branch outlets, custom branch heights, heavy wall thicknesses, or specialized welding and forming, our engineering team can manufacture custom tees tailored to your exact specifications. Simply send us your CAD or technical drawings, and we will fabricate and inspect them to your exact tolerances.

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