Prefabricated pipe spools
Shop-built to your isometrics, tagged and documented.

Prefabricated spools and piping assemblies built to your isometrics in 904L, duplex, titanium, nickel alloys and steel, using Teshi's own flanges, fittings and bolting, so the whole package traces to one supplier.
Tell us the item, size, grade and quantity. We reply with price and delivery.
Trusted by plants and EPCs across India
Shop-built to your isometrics, tagged and documented.
Sulphuric and phosphoric acid lines in 904L and Alloy 20.

You deal with the people who make it. No trader margin, no lost information between you and the shop floor.
Every piece is marked and linked to its mill certificate. EN 10204 3.1 as standard, 3.2 when witnessed.
Carbon steel, alloy, stainless, duplex, nickel alloys and titanium, so a mixed BOQ goes to one supplier.
Your QAP, your third-party agency, PMI and NDT as specified. Since 1971, ISO 9001:2015 certified and IBR approved.

Send sizes, grades and quantities. Our estimation team usually replies within one working day.
Most spool delays come from waiting for flanges and fittings in the right grade. We manufacture those ourselves, so exotic-alloy spools are not held up by a third-party forging order, and every heat number sits in one record.
You also get one point of contact for the spools, the loose flanges, the bolting and the spares.

| Service | Alloys often specified | Why |
|---|---|---|
| Dilute and intermediate sulphuric acid | 904L, Alloy 20 | Copper and high nickel keep the alloy passive where 316L corrodes |
| Seawater and brine | Super duplex 2507, 254 SMO, titanium Gr 2, Cu-Ni 90/10 | High PREN or a stable oxide film resists chloride pitting and crevice attack |
| Chlorides with stress (chloride SCC risk) | Duplex 2205, super duplex | The two-phase structure resists chloride stress-corrosion cracking |
| Wet chlorine and hypochlorite | Titanium Gr 2, 7, 12 | Titanium's oxide film is stable in oxidising chlorides |
| Hydrochloric acid and mixed acids | Hastelloy C276 | High molybdenum and tungsten in a nickel base |
| High-temperature steam | A335 P11, P22, P91 with matching forgings | Chrome-moly steels keep creep strength at temperature |
General guidance only. The final material is set by your process licensor or materials engineer.
GTAW root for stainless and exotic alloys with inert-gas purging; procedures and welders qualified to ASME IX.
Stainless and nickel alloys pickled and passivated; weld tint removed; ends capped for shipment.
Every component's heat number recorded on the weld map, from flanges and fittings we make to pipe from the mill.
ISO 9001:2015 certified and IBR approved. The same four checks apply to every order, whether it is a dozen pieces or a full project BOQ.
Mill certificates are checked against the purchase order, and heat numbers are logged when material arrives.
Heat numbers carry through cutting, forging or forming, machining and welding, so every piece links back to its mill certificate.
Dimensional checks, PMI and the NDT your QAP calls for. Third-party inspection is arranged when you specify an agency.
Material test certificates to EN 10204 3.1, or 3.2 when witnessed, with the inspection reports your contract asks for.

Send sizes, grades and quantities. Our estimation team usually replies within one working day.
Four steps, no surprises.
BOQ, drawing or a single line by form, email or WhatsApp.
Price, delivery and inspection plan, usually within one working day.
QAP and drawings approved; your inspector is welcome at every stage.
Packed, marked and shipped with test certificates and reports.

Blast furnace, utilities and process piping

Acid plants, zinc, copper and alumina

Refineries, petrochemicals and power plants

Pipelines, cooling water and marine
Non-ferrous smelters, steel plants and EPC contractors, including Hindustan Zinc projects at Debari and Chanderiya.
Flanges, fittings, pipe, bolting and fabrication on one purchase order, with one set of documents.
Teshi FittingsForged flanges to ASME B16.5, B16.47, EN 1092-1 and IS 6392, and B16.11 forged fittings
PipeFittings.co.inASME B16.9 elbows, tees, reducers, stub ends and MSS SP-97 olets
Teshi PipesSeamless and welded pipe in stainless, duplex, alloy, nickel and carbon steel
Teshi FastenersASTM A193, A194 and A320 stud bolts and nuts, plus exotic-alloy bolting
Teshi Heavy FabricationsBlast furnace nozzles, rolled pipe, ducts, mitre bends and plate flanges to drawingPrefabricated pipe spools and piping assemblies made to your isometrics, in corrosion-resistant alloys and conventional steels, using flanges, fittings and bolting we manufacture ourselves.
We fabricate to the client's or licensor's design: isometrics, P&IDs and specifications. Material selection support is offered as guidance; process design responsibility stays with your engineering team.
Carbon and chrome-moly steel, 304L and 316L, 904L, 254 SMO, duplex and super duplex, titanium, nickel alloys and copper-nickel.
Spools are tested as your QAP requires, typically NDT on shop welds and hydrotest where specified, then cleaned, capped and tagged.

Send your BOQ, drawing or tender reference. You deal directly with the manufacturer.
Drawings and BOQ spreadsheets are easiest by email. Mention your project name.