Forged Reducing Tee Manufacturer, Supplier & Exporter
A forged reducing tee has a branch outlet smaller than its run, letting a small-bore branch leave a line without a separate bushing or reducing coupling. Raaj Fittings manufactures and exports forged reducing tees with socket weld and threaded ends to ASME B16.11, in run sizes up to 4" NPS and a wide range of branch sizes, in stainless steel, duplex, nickel alloys, carbon steel and alloy steel.
Reducing tees are common wherever instrument, vent, drain or sample connections are taken from small-bore process and utility lines. Combining the tee and the reduction in one forging saves a joint, reduces the number of potential leak paths and keeps the assembly short.
All reducing tees are supplied with EN 10204 3.1 mill test certificates, with 3.2 certification and third-party inspection on request.
We export forged reducing tees to EPC contractors, plant operators and stockists across the Middle East and GCC, Europe and the Americas — with NPT threads for US and Gulf projects or BSP threads where European and Middle Eastern specifications call for them.
Reducing Tee Specifications
Run ⅜" NPS to 4" NPS with smaller branch outlets, e.g. 1" × 1" × ½"
Socket weld: Class 3000, 6000 and 9000. Threaded: Class 2000, 3000 and 6000
NPT to ASME B1.20.1; BSPT and BSPP to BS 21 / ISO 7-1
Socket weld (SW) or female threaded (NPT / BSP)
Forged from bar or billet and CNC machined
EN 10204 3.1 mill test certificate as standard; EN 10204 3.2 on request
Materials & Grades
We supply forged reducing tees in the following materials and grades. All grades are supplied with EN 10204 3.1 / 3.2 Mill Test Certificates.
Stainless Steel Forged Reducing Tees
Stainless steel forged fittings deliver excellent corrosion resistance in chemical, pharmaceutical, food processing, and marine environments. All grades supplied to ASTM A182 specification.
(ASTM A182 F304 / F304L) General corrosion resistance; food processing, dairy, and chemical service
(ASTM A182 F316 / F316L) Superior chloride and acid resistance; pharmaceutical, offshore, and chemical processing
(ASTM A182 F316H) Elevated-temperature creep strength for high-temperature process service
(ASTM A182 F317 / F317L) Higher molybdenum content; superior corrosion resistance in concentrated acid service
(ASTM A182 F321) Titanium-stabilised; resists sensitisation at sustained elevated temperatures
(ASTM A182 F347) Columbium-stabilised; used in heat exchangers and high-temperature piping
Duplex & Super Duplex Stainless Steel Forged Reducing Tees
Delivering approximately twice the yield strength of austenitic stainless steel with excellent resistance to stress corrosion cracking, pitting, and erosion — ideal for offshore, subsea, and chemical processing environments.
(UNS S31803 / S32205, ASTM A182 F51) Offshore topsides, chemical plant, and seawater cooling systems
(UNS S32750, ASTM A182 F53) Subsea equipment, desalination, and high-chloride offshore service
(UNS S32760, ASTM A182 F55) High-temperature, high-chloride offshore and subsea service applications
Nickel Alloy Forged Reducing Tees
For the most severe corrosive, high-temperature, and sour service environments where standard stainless steel grades are insufficient.
(UNS N06600) High-temperature oxidation and carburisation resistance
(UNS N06625) Outstanding corrosion resistance; offshore, chemical, and subsea service
(UNS N08825) Resistance to phosphoric and sulfuric acids; FGD and chemical plant
(UNS N10276) Universal corrosion resistance across the widest range of aggressive media
(UNS N06022) Superior resistance to oxidising and reducing acids and pitting attack
(UNS N04400) Seawater, hydrofluoric acid, and marine and alkali service
(UNS N08020) Engineered for sulfuric acid and aggressive chemical process service
Exceptional corrosion resistance in seawater and oxidising media at low density
Carbon Steel Forged Reducing Tees
Carbon steel is the standard material for forged fittings in general-purpose, hydrocarbon, steam, and elevated-temperature service. The primary grade for forged carbon steel fittings is ASTM A105.
Primary grade for forged carbon steel fittings and flanges — covers ambient and elevated-temperature service in pressurised piping systems.
Low-temperature carbon steel, impact-tested for service down to -46°C (-50°F) — LNG, cold climate, and cryogenic piping applications.
Low-temperature carbon steel, impact-tested to -101°C (-150°F) — for the most demanding cold-temperature service applications.
Alloy Steel Forged Reducing Tees
Chromium-molybdenum alloy steel grades for high-temperature, high-pressure service in power generation, petrochemical, and refinery applications. All grades supplied to ASTM A182 specification.
(5% Cr · ½% Mo) Refinery hydroprocessing and high-temperature service
(9% Cr · 1% Mo) High-temperature steam and hydrogen-rich process service
(1¼% Cr · ½% Mo) Thermal power plant steam, feedwater, and reheat piping
(2¼% Cr · 1% Mo) Reactors and high-temperature pressure piping in petrochemical plants
(9% Cr · 1% Mo · V · Nb) Ultra-supercritical power plant main steam and hot reheat piping
How Forged Reducing Tees Are Made
ASME B16.11 does not give separate dimensions for reducing fittings. Instead, a reducing tee uses the body and centre-to-end dimensions of its largest opening, and the smaller outlet is machined to the branch size. This means a reducing tee drops into the same space as an forged equal tee of the run size.
- One fitting — replaces an equal tee plus a bushing or reducing insert.
- Fewer leak paths — one less threaded or welded joint.
- Any combination — branch sizes from ⅛" upwards on runs up to 4".
- Mixed ends — e.g. socket weld run with a threaded branch for instrument connections, to order.
Specifying a Reducing Tee
Give the sizes as run × run × branch (for example ¾" × ¾" × ½"), the class, end type, thread form if threaded, and the material grade. Match the class to the pipe schedule: socket weld 3000 with SCH 80, 6000 with SCH 160, 9000 with XXS; threaded 2000 with SCH 80, 3000 with SCH 160, 6000 with XXS.
Other Ways to Reduce
Where the reduction is in-line rather than at a branch, a swage nipple, a reducing coupling or a bushing is used. For larger lines, a buttweld reducing tee to ASME B16.9 is the equivalent fitting.
Applications & Industries
- Instrument, gauge and transmitter tappings from process lines
- Vent and drain connections on small-bore piping
- Sample points and analyser feeds
- Hydraulic and chemical injection branches
- Steam tracing supply and return branches
- Offshore small-bore systems in duplex and super duplex
Forged reducing tees are often ordered for standard instrument tappings, such as ½" or ¾" branches on 1" and 2" lines, so that gauges and transmitters can be fitted directly. They can be supplied with a threaded branch and plugs for spare connections.
See the complete range of forged fittings.
Testing, Inspection, Marking & Packing
Forged reducing tees are produced under our quality assurance process:
- Incoming material verification with PMI testing
- Chemical and mechanical testing to ASTM A105, A350, A182 or the applicable nickel alloy specification
- Heat treatment as required, with pickling and passivation for stainless steels
- Dimensional inspection of each socket or thread, with NPT / BSP gauging
- Marking with run × branch size, class, grade and heat number
Supplied with EN 10204 3.1 mill test certificates; EN 10204 3.2 certificates and third-party inspection are available on request.
Fittings are packed for export with plastic caps protecting threads and sockets, rust-preventive or VCI wrapping on carbon and alloy steel, and seaworthy wooden cases; marking, tagging and packing to your specification are available on request.
Why Choose Raaj Fittings for Forged Reducing Tees?
Raaj Sagar Steels has supplied piping components since 2003 and today manufactures forged fittings at two plants in India for buyers in the Middle East, Europe and the Americas.
- Manufactured in-house — Forged reducing tees are made in our own plants, so material, dimensions and delivery stay under our control.
- Ready stock, short lead times — common sizes and grades are held in stock for prompt dispatch; other sizes, grades and specials are manufactured to order.
- Certified quality — ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018 certified; PED 2014/68/EU and IBR supply available, and NACE MR0175 / ISO 15156 material on request.
- 100% material verification — PMI testing on incoming material and EN 10204 3.1 mill test certificates with every order; 3.2 certificates on request.
- Third-party inspection ready — we regularly work with SGS, Bureau Veritas, TÜV and DNV.
- Export documentation — MTCs, certificates of origin, packing lists and inspection reports to suit projects in the GCC, Europe and the Americas.
- Export packing — seaworthy packing with end and face protection, and packing to your specification on request.
- Fast response — our team replies to enquiries within one business day.
Forged Reducing Tees — FAQs
A forged reducing tee is a small-bore ASME B16.11 tee whose branch is smaller than its run, avoiding a separate bushing or reducing coupling at the branch.
Under ASME B16.11, reducing fittings use the dimensions of their largest opening, so a reducing tee fits the same space as an equal tee of the run size.
As run × run × branch — for example 1" × 1" × ½" means a 1" run with a ½" branch.
Yes. Reducing tees with mixed end connections can be made to order, which is common for instrument connections.
Socket weld reducing tees in Class 3000, 6000 and 9000; threaded in Class 2000, 3000 and 6000.
Carbon steel ASTM A105 and A350 LF2 / LF3, stainless steel ASTM A182 F304 to F347, alloy steel ASTM A182 F5 to F91, duplex and super duplex (F51, F53, F55) and nickel alloys such as Inconel 625 and Hastelloy C276.
Yes. We supply forged reducing tees for projects under the European Pressure Equipment Directive (PED 2014/68/EU), and with IBR certification for Indian boiler applications. NACE MR0175 / ISO 15156 compliant material is also available on request for sour service in the Middle East and the Americas.
