Pipes and Tubes Manufacturers & Exporter in Mumbai, India
Jade Alloys is one of the established pipes and tubes manufacturers in India, working as a manufacturer, stockist and exporter of pipes and tubes for refineries, petrochemical plants, power generation, desalination, fertiliser, pharmaceutical and offshore projects. As a dedicated pipes manufacturer and tubes manufacturer, our range covers seamless, ERW and welded pipes from 1/8″ NB to 48″ OD and tubes from 1/2″ OD to 12″ OD, across 60+ grades — from commodity ASTM A106 Gr. B carbon steel through to Hastelloy C276, Inconel 625 and Super Duplex S32750 in stainless steel, duplex, nickel alloy, carbon steel and alloy steel material with full mill test certification on every order.
Every consignment ships with EN 10204 3.1 mill test certificates, and third-party inspection (TPI) by agencies such as Lloyd’s, TÜV, BV, SGS or DNV can be arranged on request. Whether you need a single length for a maintenance shutdown or a full container for a project bulk order, we hold standard sizes ready for immediate dispatch from our Mumbai warehouse making us a reliable, single-source pipes supplier and tubes supplier for buyers across India and overseas.
Quick Section Links
- Pipes and Tubes Specification
- What Are Pipes and Tubes?
- Pipe vs Tube — Key Differences
- Types of Pipes and Tubes We Manufacture
- Pipes & Tubes Material Grades
- Pipe Dimensions Chart (ASME B36.19M — Stainless Steel Pipe)
- Testing, Inspection & Documentation
- Industries We Supply
- Why Buy Pipes & Tubes From Jade Alloys
- Frequently Asked Questions
- Related Products
- Countries We Export Pipes & Tubes To
Pipes and Tubes Specification
| Attribute | Details |
|---|---|
| Product | Pipes & Tubes (Seamless, ERW, Welded, EFW) |
| Pipe size range | 1/8″ NB to 48″ OD (6 mm NB – 1200 mm NB) |
| Tube size range | 1/2″ OD to 12″ OD (6 mm – 325 mm OD) |
| Wall thickness | SCH 5S, 10S, 10, 20, 40S, 40, STD, 60, 80S, 80, XS, 100, 120, 140, 160, XXS / 25 SWG – 10 SWG |
| Length | Single random, double random, cut-to-length, fixed length |
| Forms | Round, square, rectangular, oval, hollow section, coil, “U”-bend, hydraulic, honed, capillary |
| End finish | Plain end, bevelled end, threaded, socket |
| Standards | ASTM, ASME SA, API 5L, DIN, EN, JIS, IS, BS |
| Materials | Stainless steel, duplex & super duplex, nickel alloys, copper-nickel, titanium, carbon steel, alloy steel |
| Test certificate | EN 10204 3.1 MTC; TPI on request |
| Delivery | Ex-stock Mumbai; worldwide export |
What Are Pipes and Tubes?
Both pipes and tubes are hollow cylindrical sections used to convey fluids, gases and slurries or to carry structural load but they are specified, manufactured and tolerance-controlled differently, and the two terms are not interchangeable on a purchase order. Understanding the distinction matters whether you’re buying from a pipes supplier, a tubes supplier, or sourcing both from a single vendor.
A pipe is specified by Nominal Bore (NB) or Nominal Pipe Size (NPS) plus a schedule number. The NPS is a nominal designator, not a measured dimension: a 2″ NPS pipe has an actual outside diameter of 60.33 mm. The schedule (SCH 10, 40, 80, 160, etc.) fixes the wall thickness. Pipes prioritise pressure-carrying capacity and flow area, and are governed by dimensional standards such as ASME B36.10M (carbon and alloy steel) and ASME B36.19M (stainless steel).
A tube is specified by its actual outside diameter and either a wall thickness in mm or a gauge (SWG/BWG). Tubes are held to much tighter dimensional and concentricity tolerances because they are usually a structural, heat-transfer or instrumentation component — a heat exchanger tube must fit a drilled tubesheet hole to a fraction of a millimetre.
Pipe vs Tube — Key Differences
| Parameter | Pipe | Tube |
|---|---|---|
| Sized by | Nominal Bore (NB / NPS) + schedule | Actual Outside Diameter (OD) + wall thickness / gauge |
| Primary concern | Flow capacity and internal pressure | Dimensional precision, structural strength, heat transfer |
| Tolerances | Looser (typically ±12.5% on wall) | Tight (often ±10% or better, plus straightness & ovality limits) |
| Typical shape | Round only | Round, square, rectangular, oval, coiled, U-bent |
| Common joining | Butt weld, socket weld, threaded, flanged | Welded, brazed, compression fitting, flare fitting, roller-expanded |
| Cost driver | Sold by weight | Sold by weight, but higher $/kg due to tighter processing |
| Typical standards | ASTM A106, A312, A335, API 5L, ASME B36.10M/B36.19M | ASTM A213, A249, A269, A270, A179, A192 |
| Ordering example | “2” NB SCH 40 ASTM A106 Gr. B seamless” | “19.05 mm OD × 2.11 mm WT ASTM A213 TP316L” |
Practical rule of thumb
If the drawing calls out a schedule, you need a pipe. If it calls out an OD and a wall in mm or a gauge, you need a tube. Ordering the wrong one is the single most common cause of rejected material at site.
Types of Pipes and Tubes We Manufacture
Produced by piercing a solid round billet and elongating it over a mandrel, with no weld seam anywhere in the cross-section. Because there is no heat-affected zone, seamless pipe offers uniform strength around its circumference and is the default choice for high-pressure, high-temperature and severely corrosive duty: boiler circuits, refinery hydrocarbon lines, hydraulic systems and subsea flowlines. Available across our full grade range.
Formed from strip or coil, rolled to shape and joined by a high-frequency resistance weld without filler metal. ERW is dimensionally consistent, economical in the 1/2"-24" range and widely used for water, low-pressure gas, structural, fire-protection and general service lines under API 5L and ASTM A53.
For larger diameters where seamless is impractical or uneconomical, we supply electric fusion welded and longitudinally submerged-arc welded pipe to ASTM A312, A358 and API 5L up to 48" OD. Radiographic testing of the weld seam is standard.
Tight-tolerance tubes to ASTM A179, A192, A210, A213 and A249, supplied straight or as U-bends, with hydrostatic and eddy-current testing. This is the most tolerance-critical product we make - see our tube plugs and header plugs for the matching maintenance consumables.
Small-bore, bright-annealed seamless tubing in 316/316L to ASTM A269/A213, supplied in straight lengths or coils for impulse lines, control panels and hydraulic circuits. Also available as SS 304 and SS 316 capillary tubes.
Structural and decorative hollow sections in stainless and carbon steel, available in mill, matte, satin and mirror finishes.
Pipes & Tubes Material Grades
- Stainless Steel 304 / 304L Pipes & Tubes
- Stainless Steel 316 / 316L Pipes & Tubes
- Stainless Steel 316Ti Pipes & Tubes
- Stainless Steel 310 / 310S Pipes & Tubes
- Stainless Steel 317 / 317L Pipes & Tubes
- Stainless Steel 347 / 347H Pipes & Tubes
- Stainless Steel 904L Pipes & Tubes
- SMO 254 (UNS S31254) Pipes & Tubes
ASTM A312 / A358 (pipe)
ASTM A213 / A249 / A269 / A270 (tube)
ASTM A554 (ornamental)
- Duplex Steel UNS S31803 Pipes & Tubes
- Duplex Steel UNS S32205 Pipes & Tubes
- Super Duplex UNS S32750 Pipes & Tubes
- Super Duplex UNS S32760 Pipes & Tubes
ASTM A790 / A928 (pipe)
ASTM A789 (tube)
- Hastelloy C276 Pipes & Tubes
- Hastelloy C22 Pipes & Tubes
- Inconel 600 Pipes & Tubes
- Inconel 625 Pipes & Tubes
- Incoloy 800 / 800H / 800HT Pipes & Tubes
- Incoloy 825 Pipes & Tubes
- Monel 400 Pipes & Tubes
- Nickel 200 / 201 Pipes & Tubes
- Alloy 20 Pipes & Tubes
ASTM B161, B163, B165, B167
ASTM B444, B622, B677, B729
- ASTM A106 Gr. B Pipe
- ASTM A106 Gr. C Pipe
- API 5L Gr. B / ASTM A53 Gr. B Seamless Pipe
- API 5L X42 Pipe · X52 · X60 / X65 · X70 / X80
- ASTM A333 Gr. 3 LTCS Pipe · Gr. 6
- SA 179 Carbon Steel Tubes · SA 192 · SA 210 Gr. A1
Line pipe
Boiler tube
Structural and low-temperature service
- ASTM A335 P11 Pipe / A213 T11 Tube
- ASTM A335 P12 Pipe / A213 T12 Tube
- ASTM A335 P22 Pipe / A213 T22 Tube
- ASTM A335 P9 Pipe
- ASTM A335 P91 Pipe / A213 T91 Tube
- 16Mo3 Seamless Pipe
Boilers
Superheaters
Refinery furnaces
Pipe Dimensions Chart (ASME B36.19M — Stainless Steel Pipe)
| NPS | OD (in) | OD (mm) | SCH 10S (in / mm) | SCH 40S (in / mm) | SCH 80S (in / mm) |
|---|---|---|---|---|---|
| 1/8 | 0.405 | 10.29 | 0.049 / 1.24 | 0.068 / 1.73 | 0.095 / 2.41 |
| 1/4 | 0.540 | 13.72 | 0.065 / 1.65 | 0.088 / 2.24 | 0.119 / 3.02 |
| 3/8 | 0.675 | 17.15 | 0.065 / 1.65 | 0.091 / 2.31 | 0.126 / 3.20 |
| 1/2 | 0.840 | 21.34 | 0.083 / 2.11 | 0.109 / 2.77 | 0.147 / 3.73 |
| 3/4 | 1.050 | 26.67 | 0.083 / 2.11 | 0.113 / 2.87 | 0.154 / 3.91 |
| 1 | 1.315 | 33.40 | 0.109 / 2.77 | 0.133 / 3.38 | 0.179 / 4.55 |
| 1 1/4 | 1.660 | 42.16 | 0.109 / 2.77 | 0.140 / 3.56 | 0.191 / 4.85 |
| 1 1/2 | 1.900 | 48.26 | 0.109 / 2.77 | 0.145 / 3.68 | 0.200 / 5.08 |
| 2 | 2.375 | 60.33 | 0.109 / 2.77 | 0.154 / 3.91 | 0.218 / 5.54 |
| 2 1/2 | 2.875 | 73.03 | 0.120 / 3.05 | 0.203 / 5.16 | 0.276 / 7.01 |
| 3 | 3.500 | 88.90 | 0.120 / 3.05 | 0.216 / 5.49 | 0.300 / 7.62 |
| 3 1/2 | 4.000 | 101.60 | 0.120 / 3.05 | 0.226 / 5.74 | 0.318 / 8.08 |
| 4 | 4.500 | 114.30 | 0.120 / 3.05 | 0.237 / 6.02 | 0.337 / 8.56 |
| 5 | 5.563 | 141.30 | 0.134 / 3.40 | 0.258 / 6.55 | 0.375 / 9.53 |
| 6 | 6.625 | 168.28 | 0.134 / 3.40 | 0.280 / 7.11 | 0.432 / 10.97 |
| 8 | 8.625 | 219.08 | 0.148 / 3.76 | 0.322 / 8.18 | 0.500 / 12.70 |
| 10 | 10.750 | 273.05 | 0.165 / 4.19 | 0.365 / 9.27 | 0.500 / 12.70 |
| 12 | 12.750 | 323.85 | 0.180 / 4.57 | 0.375 / 9.53 | 0.500 / 12.70 |
| 14 | 14.000 | 355.60 | 0.188 / 4.78 | — | — |
| 16 | 16.000 | 406.40 | 0.188 / 4.78 | — | — |
| 18 | 18.000 | 457.20 | 0.188 / 4.78 | — | — |
| 20 | 20.000 | 508.00 | 0.218 / 5.54 | — | — |
| 24 | 24.000 | 609.60 | 0.250 / 6.35 | — | — |
Need weight per metre? Use our Metal Weight Calculator.
Testing, Inspection & Documentation
Material without paperwork is scrap at the gate. Every heat we supply is traceable and every consignment is dispatched with documentation matched to the purchase order.
Mechanical
Tensile, yield, elongation, hardness (Brinell/Rockwell), flattening, flaring and bend tests.
Non-Destructive
Hydrostatic test, eddy current, ultrasonic, radiographic (welded seams), dye penetrant.
Corrosion
IGC to ASTM A262 Practice A/B/C/E, ferrite count (duplex), pitting resistance to ASTM G48.
Chemical
PMI (Positive Material Identification) and spectro analysis of each heat.
Industries We Supply
- Oil & gas / offshore: API 5L X52–X70, Duplex S31803, Super Duplex S32750, Incoloy 825
- Refineries & petrochemical: A106 Gr. B, A335 P11/P22/P91, SS 321/347H
- Power generation & boilers: SA 179, SA 192, SA 210 A1, A213 T11/T22/T91
- Chemical & fertiliser: SS 316L, 904L, Alloy 20, Hastelloy C276
- Desalination & seawater: Super Duplex S32750/S32760, SMO 254, Cu-Ni 90/10
- Pharmaceutical & food: SS 316L electropolished tube, ASTM A270 sanitary
- Heat exchangers & condensers: SA 179, SS 316L, Titanium Gr. 2, Cu-Ni 70/30
- Pulp & paper: SS 304L, 316L, Duplex 2205
- Aerospace & defence: Titanium, Inconel 625, 15-5PH
- Construction & structural: ASTM A53, hollow sections, ERW
Why Buy Pipes & Tubes From Jade Alloys
As one of the most trusted pipes and tubes manufacturers serving buyers across India, we offer:
- Direct supply, no layered margin. We are a manufacturer and stockist, not a broker reselling someone else’s stock at a markup.
- Genuine grade traceability. Heat-number-linked MTCs on every length. If it says 316L on the certificate, PMI at your gate will say 316L.
- Ready stock, faster shutdowns. Standard sizes in stainless, duplex and carbon steel ship within days of PO confirmation — critical when a plant is losing money every hour it is down.
- Export-ready documentation. Sea-worthy packing, fumigation certificates, LC-compliant documents and consistent HS coding for customs clearance in the Gulf, Europe and Southeast Asia.
- One-stop procurement. Pipes and tubes plus flanges, fasteners, round bars, sheets & plates, gaskets and tube plugs — one vendor, one set of documents, one point of accountability.
Frequently Asked Questions
1. What is the difference between a pipe and a tube?
2. Which is better: seamless or welded pipe?
3. What sizes of pipes and tubes does Jade Alloys supply?
4. What is the minimum order quantity?
5. Do you provide mill test certificates?
6. Which grade should I choose for seawater service?
7. How long does delivery take?
8. Do you export pipes and tubes outside India?
9. How do I calculate the weight of a pipe?
10. Can you supply pipes and tubes in custom lengths or bent to shape?
Countries We Export Pipes & Tubes To
Jade Alloys supplies pipes and tubes worldwide, with sales representation and stocking support across every major industrial region including the Middle East, Europe, Southeast Asia, Africa and the Americas.
Get a Quote from a Leading Pipes & Tubes Supplier
Ready to source pipes and tubes from a certified, direct manufacturer with global export experience? As a dependable pipes supplier and tubes supplier, Jade Alloys delivers verified quality, complete documentation and on-time delivery. Submit your RFQ with grade, size, schedule/wall thickness, quantity and delivery location, and our sales team responds within 24 business hours.
