Carbon Steel Pipes & Tubulars
Seamless, LSAW and SSAW large diameter, ERW, hot-dip galvanized and 3PE / FBE coated pipe in carbon and low-alloy steel — supplied from audited partner mills, inspected before shipment, and consolidated with your clad and stainless orders where practical.
Six ways we supply pipe
From small-bore seamless for pressure piping to 3-metre spiral pipe for water transmission and piling. Coating and bevel are matched to the project specification.
| Outer diameter | 10.3 – 720 mm |
| Wall thickness | Sch 10 – Sch 160, XXS |
| Length | 6 m / 12 m fixed or random |
| Grades | A106 B/C, A53 B, API 5L B–X70, A333 |
| Standards | ASTM A106 / A53, API 5L PSL1/2, GB/T 8163 |
| Outer diameter | 406 – 1,626 mm |
| Wall thickness | 6 – 60 mm |
| Length | 6 – 12 m, double joints on request |
| Grades | API 5L B–X70, A672, A671, S355 |
| Testing | 100% UT / RT, hydrostatic |
| Outer diameter | 219 – 3,048 mm |
| Wall thickness | 4 – 25.4 mm |
| Length | 6 – 15 m or project cut |
| Grades | API 5L B–X60, Q235, Q355, S235–S355 |
| Standards | API 5L PSL1/2, EN 10219, GB/T 9711 |
| Outer diameter | 21.3 – 660 mm |
| Wall thickness | 1.6 – 20 mm |
| Length | 6 m standard, project lengths |
| Grades | A53 B, API 5L B–X52, S235–S355 |
| Standards | ASTM A53 / A135 / A500, EN 10219 |
| Outer diameter | 21.3 – 273 mm (DN8–DN250) |
| Zinc coating | ≥ 500 g/m² average, both surfaces |
| Ends | plain, threaded & coupled, grooved |
| Standards | ASTM A53 / A795, A123, EN 10240, BS 1387 |
| Systems | 3PE / 3LPP, FBE, dual-layer FBE |
| Total thickness | 1.8 – 3.7 mm (3PE standard) |
| Service temperature | -20 °C to +110 °C |
| Standards | DIN 30670 / 30678, CSA Z245.21, SY/T 0413 |
Coatings, linings and end finishes
The pipe is only as durable as its protection. Tell us the medium, soil conditions and climate at the job site, and we will match the coating system.
| System | What it does | Typical use |
|---|---|---|
| 3PE / 3LPE | Fusion-bonded epoxy + adhesive + polyethylene top coat. Mechanical damage and moisture barrier. | Buried oil, gas and water pipelines |
| 3LPP | Polypropylene top coat for higher service temperature and mechanical loads. | Hot product lines, desert & offshore |
| FBE / dual FBE | Fusion-bonded epoxy, single or dual layer. Strong adhesion, cathodic-disbondment rated. | Pipeline, rebar, valve & fitting coating |
| Hot-dip galvanizing | Zinc layer both inside and outside; sacrificial protection at cut edges. | Water, fire mains, scaffolding, fencing |
| Cement mortar lining | Centrifugal mortar lining inside large diameter pipe; smooth hydraulic surface. | Water transmission, outfalls |
| Bevelled & plain ends | API 5L standard 30° bevel for field butt welds; plain, threaded, grooved or flanged ends on request. | Matched to the project jointing method |
Export packing as standard: end caps or woven bags, nylon slings on pipe bodies, bundled and banded in containers or broken bulk, with full loading photos and weight tally before the container doors close.
Built for water, energy and foundation work
Most of this pipe ships to the Gulf, North and East Africa and Southeast Asia, where water transmission, energy and foundation programmes absorb large diameters in volume.
Audited mills, third-party eyes, full traceability
We do not roll this pipe ourselves. We place it with audited Chinese partner mills — chosen per specification and per volume — and we put independent inspection between their production and your delivery.
Send us the line list or pipe schedule
Diameter, wall, grade, standard and coating — or just the project and destination port. We will come back with mill options, an inspection plan and an FOB or CIF quote.