Carbon Steel Seamless Pipe — Technical Data Sheet
Seamless carbon steel pipe is the standard material for process, steam, oil and gas lines. ASTM A106 Grade B is specified for high-temperature service; API 5L Grade B and X-grades for line pipe.
Specification
| Product | Carbon Steel Seamless Pipe |
|---|---|
| Supply | Stockist and supplier — sourced from approved mills; not manufactured by Teshi Group |
| Specifications | ASTM A106 / ASME SA106; ASTM A53; API 5L PSL1 / PSL2; dimensions to ASME B36.10M |
| Size range | NPS ⅛" to 24" seamless; larger sizes in ERW / LSAW |
| Wall thickness | Sch 10, 20, 30, 40 (STD), 60, 80 (XS), 100, 120, 140, 160, XXS |
| Condition | Hot finished or cold drawn; plain or bevelled ends; black, varnished or galvanised |
| Length | Single random (5–7 m), double random (10–12 m) or cut to length |
| Services | Cutting, bevelling to ASME B16.25, and supply with Teshi-manufactured flanges and fittings |
Materials
| Seamless carbon steel | ASTM A106 Gr.B, ASTM A53 Gr.B (seamless), API 5L Gr.B PSL1 |
|---|
Typical applications
- Process and utility piping
- Steam and boiler piping (IBR)
- Oil and gas line pipe
Supply
Carbon Steel Seamless Pipe is stocked and supplied by Teshi Group from approved manufacturers. It is not manufactured by Teshi Group; the original manufacturer's test certificate accompanies every consignment.
Inspection and testing
- Mill testing to the pipe specification: chemical analysis, tensile, flattening or bend, and hydrostatic or NDT of every length.
- Teshi receiving inspection: verification of markings and heat numbers against the mill certificate, visual and dimensional check.
- PMI on alloy and stainless pipe before dispatch.
- Additional testing or third-party inspection on request.
Marking
Mill stencil along each length: manufacturer, specification, grade, size, schedule, heat number and length.
Documentation
Original mill test certificate to EN 10204 3.1 for each heat supplied. IBR-certified material on request.
Packing
Bundled with steel straps, ends fitted with plastic caps; bevel protectors on bevelled pipe.
Ordering information
Please state the following on your enquiry:
- Specification and grade
- Nominal size and schedule or wall thickness
- Seamless or welded
- Length and end finish
- IBR, NACE or third-party inspection requirements
- Quantity in metres or tonnes
Reference information compiled from the published standard for convenience. It does not replace the current edition of the governing standard, which takes precedence. Verify critical dimensions and properties before design, purchase or fabrication. Teshi Engineers & Sales Promoters (P) Ltd accepts no liability for errors or omissions.
FAQ
Carbon Steel Seamless Pipe: common questions
Does Teshi Group manufacture this pipe?
No. Teshi Group is a stockist and supplier of pipe from approved mills, and manufactures the flanges and fittings that go with it.

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