Seamless Tubes Manufacturer in India
Seamless Tubes Manufacturer in India
Sachiya Steel International is a leading seamless tubes manufacturer in India, supplying tubes for boilers, heat exchangers, power plants, oil and gas systems, and other industrial applications. Our range includes carbon steel, alloy steel, stainless steel, duplex, super duplex, and nickel alloy seamless tubes in different sizes and specifications.
We manufacture cold drawn and hot finished seamless tubes to ASTM A213, ASTM A269, ASTM A179, ASTM A192, ASTM A210, ASTM A334, ASTM A789, EN 10216, and EN 10305 standards. Tubes can be supplied with cutting, bending, testing, and inspection options based on project requirements. ISO 9001:2015 and TÜV certifications support our quality systems, while hydrostatic and eddy current testing can be performed as required. EN 10204 3.1 material certificates are also available for applicable orders.
What Are Seamless Tubes?
Seamless tubes are hollow steel tubes made without a weld seam. The mill starts with a solid round billet, heats it, and pierces it to make a thick hollow shell called a mother tube. Then the real tube work begins. The mill pulls the mother tube through a die and over a mandrel at room temperature, and repeats the pull in several passes until the tube reaches the exact outside diameter and wall thickness you ordered. Between passes, the tube goes through annealing, so it stays soft enough to draw. After the last pass, the mill straightens, cleans, tests, and cuts the tube.
Seamless Tubes
High-quality seamless tubes manufactured for demanding applications across oil & gas, petrochemical, power generation, automotive, construction and engineering industries. Available in multiple materials, diameters, wall thicknesses and manufacturing specifications.
Types of Seamless Tubes
Seamless tubes are available in different types based on their application, manufacturing process, and surface finish. Boiler and superheater tubes are used for high-temperature water and steam service, while heat exchanger and condenser tubes transfer heat between fluids. Instrumentation tubes are used for controlled gas and liquid flow, hydraulic tubes handle high-pressure oil, and mechanical tubes are used for shafts, bushes, bearings, and other components.
Types by Manufacturing Process
Hot finished seamless tubes are formed at high temperatures and are suitable for larger sizes and heavier wall applications. Cold drawn seamless tubes are processed further at room temperature to achieve closer tolerances, accurate dimensions, and a smoother surface. Seamless tubes suppliers can offer either process depending on the required application and specification.
Types by Surface Finish
Common finishes include annealed and pickled, bright annealed, and polished tubes. Bright annealed tubes provide a smooth and clean surface, while polished tubes are suitable for applications requiring higher surface cleanliness, including food and pharmaceutical equipment. U-bent seamless tubes are also available for heat exchangers and similar applications.
Stainless Steel Seamless Tubes, Carbon Steel Seamless Tubes, Alloy Steel Seamless Tubes, Boiler Tubes, Heat Exchanger Tubes, Instrumentation Tubes, Seamless Tubes Manufacturers and Suppliers in India
We are a trusted name among seamless tubes manufacturers in India. We make and stock seamless tubes for boilers, heat exchangers, condensers, and instrument lines, and we keep ready stock of popular sizes so orders leave the yard quickly. Every batch follows ASTM, ASME, and EN standards.
As a stainless steel seamless tubes manufacturer, we produce ASTM A213 and A269 tubes in 304, 304L, 316, 316L, 321, 347, and 904L, in annealed and pickled or bright annealed finish. As a carbon steel seamless tubes supplier, we deliver ASTM A179, A192, and A210 tubes for heat exchangers, condensers, and boilers. If your plant runs hot, our alloy steel seamless tubes in T11, T22, and T91 hold their strength in superheaters and reheaters.
For clean, precise lines, we supply bright annealed instrumentation tubes with smooth bores. For heat transfer equipment, we supply straight and U-bend heat exchanger tubes cut to your drawing. Each order ships with a mill test certificate, and we test it for chemistry, strength, and pressure before dispatch. We serve buyers in India and more than 85+ countries.
Types of Pipes & Tubes
Explore our range of industrial pipes and tubes, manufactured for different applications, materials, specifications and engineering requirements.
Pipes and Tubes
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Seamless Pipes
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ERW Pipes
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LSAW Pipes
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SSAW Pipes
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Seamless Tubes
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Welded Pipes
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Welded Tubes
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Box Pipes
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Box Tubes
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Brass Pipes
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Heat Exchanger Tubes
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Boiler Tubes
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Aluminium Pipes
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Carbon Steel Seamless Pipes
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Carbon Steel Pipe
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Stainless Steel Pipe
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Alloy Steel Pipe
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Duplex Steel Pipe
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Super Duplex Steel Pipe
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Nickel Alloy Pipe
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Copper Nickel Alloy Pipe
→Get Certified Seamless Tubes at Competitive Factory Prices
Seamless Tubes Specification
Our seamless tubes come in a wide range of diameters, walls, grades, and finishes. As a seamless tubes manufacturer, we build to your standard, drawing, and delivery condition, and we cut, bend, clean, and pack each order to your needs.
| Parameter | Details |
|---|---|
| Size Range | 1/4" to 6" OD (6.35 mm to 152.4 mm) |
| Wall Thickness | 0.028" to 0.250" (0.71 mm to 6.35 mm), 22 BWG to 10 BWG and heavier |
| Process | Hot finished, cold drawn |
| Materials | Carbon steel, alloy steel, stainless steel, duplex, nickel alloy, copper-nickel |
| Length | 6 m, 12 m, random, exact cut lengths, U-bend on request |
| Tolerance | Per ASTM A450, ASTM A1016, or EN 10305-1 |
| Surface Finish | Annealed and pickled, bright annealed, polished, black, oiled |
| Heat Treatment | Solution annealed (stainless), normalized, stress relieved, tempered |
| Testing | Hydrostatic, eddy current, flattening, flaring, hardness, PMI, IGC (stainless) |
| Certificate | EN 10204 3.1 (3.2 on request) |
Seamless Tube Standards and Specifications
A standard fixes the grade, size limits, tolerance, testing, and delivery condition of the tube. We make seamless tubes to the codes below and add third-party inspection on request.
| Use | Standard |
|---|---|
| Stainless Steel Boiler and Heat Exchanger Tubes | ASTM A213 / ASME SA213 |
| Stainless Steel General Service Tubes | ASTM A269 |
| Stainless Steel Mechanical Tubing | ASTM A511 |
| Duplex and Super Duplex Tubes | ASTM A789 / ASME SA789 |
| Carbon Steel Heat Exchanger and Condenser Tubes | ASTM A179 / ASME SA179 |
| Carbon Steel Boiler Tubes | ASTM A192, ASTM A210 |
| Low Temperature Carbon Steel Tubes | ASTM A334 |
| Carbon and Alloy Mechanical Tubing | ASTM A519 |
| Alloy Steel Boiler Tubes | ASTM A213 T5, T9, T11, T22, T91 |
| Nickel Alloy Tubes | ASTM B163, B167, B423, B444, B622 |
| Copper-Nickel Tubes | ASTM B111, ASTM B466 |
| General Requirements | ASTM A450 (carbon and low alloy), ASTM A1016 (alloy and stainless) |
| European Standards | EN 10216-1, EN 10216-2, EN 10216-5, EN 10305-1, DIN 2391 |
| Boiler and Pressure Vessel Code | ASME Section I, II, VIII |
| Intergranular Corrosion Test | ASTM A262 Practice E |
| Certificate | EN 10204 3.1 and 3.2 |
Seamless Tubes Material and Grades
Each grade below comes with a mill test certificate that lists its chemistry, UNS number, and standard. If your project needs a grade that is not on this list, we can supply it against a custom specification.
| Material | Common Grades | UNS No. | Standard |
|---|---|---|---|
| Stainless Steel | 304 / 304L | S30400 / S30403 | ASTM A213, A269 |
| Stainless Steel | 316 / 316L | S31600 / S31603 | ASTM A213, A269 |
| Stainless Steel | 317L | S31703 | ASTM A213, A269 |
| Stainless Steel | 321 / 347 | S32100 / S34700 | ASTM A213, A269 |
| Stainless Steel | 904L | N08904 | ASTM A213 |
| Duplex / Super Duplex | 2205 / 2507 | S32205 / S32750 | ASTM A789 |
| Carbon Steel | A179 | K01200 | ASTM A179 |
| Carbon Steel | A192 | K01201 | ASTM A192 |
| Carbon Steel | A210 Gr. A-1 / Gr. C | K02707 / K03501 | ASTM A210 |
| Carbon Steel | A334 Gr. 1 / Gr. 6 | K03008 / K03006 | ASTM A334 |
| Carbon Steel | 1020 / 4130 / 4140 | G10200 / G41300 / G41400 | ASTM A519 |
| Alloy Steel | T5, T9, T11, T22, T91 | K41545 / K90941 / K11597 / K21590 / K91560 | ASTM A213 |
| Nickel Alloys | Inconel 625 / 600 | N06625 / N06600 | ASTM B444, B163 |
| Nickel Alloys | Incoloy 825 | N08825 | ASTM B423 |
| Nickel Alloys | Monel 400 | N04400 | ASTM B163 |
| Nickel Alloys | Hastelloy C276 | N10276 | ASTM B622 |
| Copper-Nickel | 90/10, 70/30 | C70600 / C71500 | ASTM B111 |
What Is the Difference Between Seamless Tubes and Seamless Pipes?
The main difference is how you order them and what they do. You order a pipe by nominal size and schedule, and it mainly carries fluid. You order a tube by exact outside diameter and wall thickness, and it works where precision, heat transfer, or a tight fit matters. Both can be seamless, but seamless tubes are usually cold drawn, which gives them tighter tolerances and a smoother finish.
Choose a seamless pipe when you build a process line that carries fluid under pressure. Choose a seamless tube when you build a boiler, a heat exchanger, an instrument line, or a machine part.
| Point | Seamless Tubes | Seamless Pipes |
|---|---|---|
| Sizing | Exact OD and wall thickness (inch or BWG) | Nominal pipe size (NPS) and schedule |
| Tolerance | Tight | Wider |
| Size Range | 1/4" to 6" OD | 1/8" to 24" NPS |
| Process | Mostly cold drawn | Mostly hot finished |
| Surface | Smooth, bright, or polished | Black or pickled |
| Main Job | Heat transfer, precision, hydraulics | Carrying fluids and gases |
| Common Standards | ASTM A213, A269, A179, A192, A210 | ASTM A106, A312, A333, A335 |
| Price | Higher per metre for small sizes | Lower per metre for large sizes |
Seamless Tubes Chemical Composition
Chemistry sets how strong, weldable, and corrosion resistant a grade is. Values are weight percent, maximum unless a range shows.
Carbon Steel and Low Temperature Seamless Tubes
| Grade | C | Mn | Si | P | S | Cr | Mo |
|---|---|---|---|---|---|---|---|
| A179 | 0.06–0.18 | 0.27–0.63 | – | 0.035 | 0.035 | – | – |
| A192 | 0.06–0.18 | 0.27–0.63 | 0.25 | 0.035 | 0.035 | – | – |
| A210 Gr. A-1 | 0.27 | 0.93 | 0.10 min | 0.035 | 0.035 | – | – |
| A210 Gr. C | 0.35 | 0.29–1.06 | 0.10 min | 0.035 | 0.035 | – | – |
| A334 Gr. 1 | 0.30 | 0.40–1.06 | – | 0.025 | 0.025 | – | – |
| A334 Gr. 6 | 0.30 | 0.29–1.06 | 0.10 min | 0.025 | 0.025 | – | – |
| A519 1020 | 0.18–0.23 | 0.30–0.60 | – | 0.030 | 0.050 | – | – |
| A519 4130 | 0.28–0.33 | 0.40–0.60 | 0.15–0.35 | 0.035 | 0.040 | 0.80–1.10 | 0.15–0.25 |
| A519 4140 | 0.38–0.43 | 0.75–1.00 | 0.15–0.35 | 0.035 | 0.040 | 0.80–1.10 | 0.15–0.25 |
Alloy Steel Seamless Tubes (ASTM A213)
| Grade | C | Mn | Si | P | S | Cr | Mo | Other |
|---|---|---|---|---|---|---|---|---|
| T5 | 0.15 | 0.30–0.60 | 0.50 | 0.025 | 0.025 | 4.00–6.00 | 0.45–0.65 | – |
| T9 | 0.15 | 0.30–0.60 | 0.25–1.00 | 0.025 | 0.025 | 8.00–10.00 | 0.90–1.10 | – |
| T11 | 0.05–0.15 | 0.30–0.60 | 0.50–1.00 | 0.025 | 0.025 | 1.00–1.50 | 0.44–0.65 | – |
| T22 | 0.05–0.15 | 0.30–0.60 | 0.50 | 0.025 | 0.025 | 1.90–2.60 | 0.87–1.13 | – |
| T91 | 0.07–0.14 | 0.30–0.60 | 0.20–0.50 | 0.020 | 0.010 | 8.00–9.50 | 0.85–1.05 | V 0.18–0.25, Nb 0.06–0.10, N 0.03–0.07, Ni 0.40 |
Stainless, Duplex and Super Duplex Seamless Tubes (ASTM A213, A269, A789)
| Grade | UNS | C | Mn | Si | P | S | Cr | Ni | Mo | Other |
|---|---|---|---|---|---|---|---|---|---|---|
| 304 | S30400 | 0.08 | 2.00 | 1.00 | 0.045 | 0.030 | 18.0–20.0 | 8.0–11.0 | – | – |
| 304L | S30403 | 0.035 | 2.00 | 1.00 | 0.045 | 0.030 | 18.0–20.0 | 8.0–13.0 | – | – |
| 316 | S31600 | 0.08 | 2.00 | 1.00 | 0.045 | 0.030 | 16.0–18.0 | 11.0–14.0 | 2.0–3.0 | – |
| 316L | S31603 | 0.035 | 2.00 | 1.00 | 0.045 | 0.030 | 16.0–18.0 | 10.0–15.0 | 2.0–3.0 | – |
| 317L | S31703 | 0.035 | 2.00 | 1.00 | 0.045 | 0.030 | 18.0–20.0 | 11.0–15.0 | 3.0–4.0 | – |
| 321 | S32100 | 0.08 | 2.00 | 1.00 | 0.045 | 0.030 | 17.0–19.0 | 9.0–12.0 | – | Ti 5×(C+N) min–0.70 |
| 347 | S34700 | 0.08 | 2.00 | 1.00 | 0.045 | 0.030 | 17.0–19.0 | 9.0–13.0 | – | Nb 10×C min–1.00 |
| 904L | N08904 | 0.020 | 2.00 | 1.00 | 0.040 | 0.030 | 19.0–23.0 | 23.0–28.0 | 4.0–5.0 | Cu 1.0–2.0 |
| 2205 Duplex | S32205 | 0.030 | 2.00 | 1.00 | 0.030 | 0.020 | 22.0–23.0 | 4.5–6.5 | 3.0–3.5 | N 0.14–0.20 |
| 2507 Super Duplex | S32750 | 0.030 | 1.20 | 0.80 | 0.035 | 0.020 | 24.0–26.0 | 6.0–8.0 | 3.0–5.0 | Cu 0.50, N 0.24–0.32 |
Seamless Tubes Mechanical Properties
Mechanical properties show how much load a tube carries before it stretches (yield) or breaks (tensile). Values are minimum unless marked max.
| Grade | Tensile Strength ksi (MPa) | Yield Strength ksi (MPa) | Elongation % | Hardness (max) |
|---|---|---|---|---|
| A179 | 47 (325) | 26 (180) | 35 | 72 HRB |
| A192 | 47 (325) | 26 (180) | 35 | 77 HRB |
| A210 Gr. A-1 | 60 (415) | 37 (255) | 30 | 79 HRB |
| A210 Gr. C | 70 (485) | 40 (275) | 30 | 89 HRB |
| A334 Gr. 1 | 55 (380) | 30 (205) | 35 | – |
| A334 Gr. 6 | 60 (415) | 35 (240) | 30 | – |
| A213 T5 / T9 | 60 (415) | 30 (205) | 30 | 89 HRB |
| A213 T11 / T22 | 60 (415) | 30 (205) | 30 | 85 HRB |
| A213 T91 | 85 (585) | 60 (415) | 20 | 250 HBW |
| 304 / 316 / 321 / 347 | 75 (515) | 30 (205) | 35 | 90 HRB |
| 304L / 316L | 70 (485) | 25 (170) | 35 | 90 HRB |
| 317L | 75 (515) | 30 (205) | 35 | 90 HRB |
| 904L | 71 (490) | 31 (220) | 35 | – |
| 2205 Duplex | 95 (655) | 65 (450) | 25 | 30.5 HRC |
| 2507 Super Duplex | 116 (800) | 80 (550) | 15 | 32 HRC |
ASTM A519 mechanical tubing gets its strength from the temper you order, such as annealed, stress relieved, or cold drawn, so the mill test certificate lists the exact values.
Seamless Tube Size and Weight Chart
Seamless tubes are ordered by outside diameter and wall thickness. The first chart covers small tubes by BWG gauge, and the second covers larger tubes by wall thickness in mm. Weights are in kg per metre for carbon steel, and stainless steel tube weighs about 2% more.
Small Seamless Tubes by BWG Gauge
| OD in | OD mm | 22 BWG (0.71 mm) | 20 BWG (0.89 mm) | 18 BWG (1.24 mm) | 16 BWG (1.65 mm) | 14 BWG (2.11 mm) | 12 BWG (2.77 mm) | 10 BWG (3.40 mm) |
|---|---|---|---|---|---|---|---|---|
| 1/4" | 6.35 | 0.10 | 0.12 | 0.16 | – | – | – | – |
| 3/8" | 9.53 | – | 0.19 | 0.25 | 0.32 | – | – | – |
| 1/2" | 12.70 | – | 0.26 | 0.35 | 0.45 | 0.55 | – | – |
| 5/8" | 15.88 | – | – | 0.45 | 0.58 | 0.72 | – | – |
| 3/4" | 19.05 | – | – | 0.54 | 0.71 | 0.88 | 1.11 | – |
| 1" | 25.40 | – | – | – | 0.97 | 1.21 | 1.55 | 1.84 |
| 1-1/4" | 31.75 | – | – | – | 1.22 | 1.54 | 1.98 | 2.38 |
| 1-1/2" | 38.10 | – | – | – | 1.48 | 1.87 | 2.41 | 2.91 |
| 2" | 50.80 | – | – | – | – | 2.53 | 3.28 | 3.97 |
Larger Seamless Tubes by Wall Thickness (mm)
| OD in | OD mm | 3 mm Wall | 4 mm Wall | 5 mm Wall | 6 mm Wall |
|---|---|---|---|---|---|
| 2-1/2" | 63.5 | 4.48 | 5.87 | 7.21 | 8.51 |
| 3" | 76.2 | 5.42 | 7.12 | 8.78 | 10.39 |
| 3-1/2" | 88.9 | 6.35 | 8.37 | 10.34 | 12.27 |
| 4" | 101.6 | 7.29 | 9.63 | 11.91 | 14.15 |
| 4-1/2" | 114.3 | 8.23 | 10.88 | 13.48 | 16.02 |
| 5" | 127.0 | 9.17 | 12.13 | 15.04 | 17.90 |
| 6" | 152.4 | 11.05 | 14.64 | 18.17 | 21.66 |
To work out the weight of any size, use Weight (kg/m) = (OD − Wall) × Wall × 0.02466, with both values in mm.
Available Sizes, Dimensions and Tolerances
We supply seamless tubes from 1/4" to 6" OD, in walls from 22 BWG (0.71 mm) to 10 BWG (3.40 mm) and heavier walls up to 6.35 mm. Tubes do not use schedule numbers. You order them by outside diameter and wall thickness, and the standard sets how far each can vary. A cold drawn tube can hold a much smaller size variation than a hot finished one, which is why heat exchangers and instrument lines use cold drawn tubes.
Standard lengths are 6 m and 12 m, plus random lengths and exact cut lengths for heat exchangers. As a seamless tubes supplier in India, we hold ready stock of popular sizes, subject to availability, and we bend tubes into U-shapes on request.
| Product | Available Sizes | Wall Thickness | Standard Lengths |
|---|---|---|---|
| Carbon Steel Seamless Tubes | 1/4" to 6" OD | 22 BWG to 6.35 mm | 6 m / 12 m / exact cut |
| Alloy Steel Seamless Tubes | 1/4" to 6" OD | 22 BWG to 6.35 mm | 6 m / 12 m / exact cut |
| Stainless Steel Seamless Tubes | 1/4" to 6" OD | 22 BWG to 6.35 mm | 6 m / 12 m / exact cut |
| U-Bend Tubes | 1/2" to 2" OD | 16 BWG to 10 BWG | Made to drawing |
Seamless Tubes We Manufacture and Supply
We are a seamless tubes manufacturer supplying stainless steel, carbon steel, alloy steel, duplex, super duplex, nickel alloy, and copper-nickel seamless tubes for industrial applications. Our nickel alloy range includes Inconel, Incoloy, Monel, and Hastelloy tubes for demanding service conditions.
Our range includes boiler tubes, superheater tubes, heat exchanger tubes, condenser tubes, instrumentation tubes, hydraulic tubes, bearing tubes, and mechanical tubes. We supply seamless tubes in straight and U-bent forms with suitable end finishes, markings, inspection options, and test reports according to the required standards and project specifications.
Applications of Seamless Tubes
- Boilers and Superheaters: Carry high pressure steam and hot water in power and process plants.
- Heat Exchangers and Condensers: Transfer heat between fluids in refineries, chemical plants, and power stations.
- Instrumentation and Control Lines: Bring small flows of gas and liquid to gauges, sensors, and valves.
- Hydraulic Systems: Carry high pressure oil in cylinders, presses, and heavy machines.
- Oil and Gas: Serve as downhole and surface control lines and process tubing.
- Food, Dairy and Pharmaceutical: Keep product clean with polished stainless steel tubes.
- Automotive and Machinery: Form shafts, bushes, bearing races, and fuel lines.
- Shipbuilding and Desalination: Resist seawater in cooling and evaporator tubes.
Why Choose Us as Your Seamless Tubes Manufacturer in India?
Since 2005, we have been manufacturing and supplying seamless tubes in India for industrial and engineering applications. Our range includes stainless steel, carbon steel, alloy steel, duplex, super duplex, nickel alloy, and copper-nickel seamless tubes. Nickel alloy options include Inconel, Incoloy, Monel, and Hastelloy.
Our seamless tubes are available from 1/4" to 6" OD, with different wall thicknesses, schedules, and BWG options. We manufacture tubes to ASTM A213, A269, A179, A192, A210, A334, A789, EN 10216, and EN 10305 specifications. Hydrostatic and eddy current testing, along with PMI, hardness, flattening, flaring, and IGC testing, can be provided according to the applicable requirements.
Quality systems are supported by ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, PED 2014/68/EU, and TÜV certifications. Our manufacturing and export capability supports orders of up to 100 tons per month, with cutting, bending, export packing, inspection, and documentation available as required.
For buyers looking for a seamless tubes supplier in India, we support both standard and project orders with material traceability and required quality documentation. Share your grade, material, OD, wall thickness or BWG, length, quantity, and delivery location to receive a suitable quotation and lead time.
Countries We Export Seamless Tubes To
We export seamless tubes from India to customers in 85+ countries, supporting international orders with export documentation, suitable sea and air packing, and third-party inspection when required. Our reach covers major industrial markets across North America, the Middle East, Europe, Asia Pacific, Africa, and South America.
North America: United States, Canada, Mexico
Middle East: United Arab Emirates, Saudi Arabia, Qatar, Kuwait, Oman, Bahrain
Europe: United Kingdom, Germany, Italy, France, Netherlands, Spain
Asia Pacific: Singapore, Malaysia, Indonesia, Thailand, Vietnam, Australia
Africa: South Africa, Nigeria, Egypt, Kenya, Algeria
South America: Brazil, Argentina, Chile, Peru, Colombia
Our seamless tubes exporter services cover different materials, grades, sizes, standards, and specifications for industrial and project requirements. We coordinate packing, inspection, documentation, and shipping based on the destination and order requirements.
Seamless Tubes FAQs
Common questions about seamless tube grades, sizes, standards, testing, and supply.
What is the difference between cold drawn and hot finished seamless tubes?
Hot finished tubes are shaped while hot and suit heavier walls. Cold drawn tubes are pulled cold, so they hold tighter tolerances and give a smoother finish.
What is the difference between ASTM A213 and ASTM A269 tubes?
ASTM A213 covers boiler, superheater, and heat exchanger tubes and sets stricter mechanical and testing rules. ASTM A269 covers general service stainless steel tubes.
Which seamless tubes are used in boilers and heat exchangers?
Boilers and heat exchangers use ASTM A179, A192, and A210 carbon steel tubes, A213 alloy steel tubes, and A213 stainless steel tubes.
What does BWG mean on a tube?
BWG stands for Birmingham Wire Gauge. It is a gauge number for wall thickness, and a lower number means a thicker wall.
Which seamless tube grades do you supply?
We supply ASTM A179, A192, A210, A334, A519, A213 T5 to T91, stainless steel 304, 304L, 316, 316L, 317L, 321, 347, and 904L, and duplex 2205 and 2507.
What sizes do your seamless tubes come in?
We supply seamless tubes from 1/4" to 6" OD, in walls from 22 BWG to 6.35 mm. Other sizes are available on request.
Which certificate do I get with seamless tubes?
Every order ships with an EN 10204 3.1 certificate. We issue 3.2 with third-party inspection on request.
Are you a seamless tubes manufacturer or a supplier?
Both. We manufacture seamless tubes and also work as a seamless tubes supplier in India, with ready stock of popular sizes.
Do you export seamless tubes outside India?
Yes. We ship to more than 85+ countries and handle export packing and paperwork.