Steel Pipes & Tubes
Seamless, ERW welded, spiral welded, hot-dip galvanized and cast iron pipe. Sizes run from DN15 capillary tube up to DN2600 spiral pipe, in carbon steel, alloy steel and stainless. Pipe can be supplied plain end, bevelled, threaded or grooved.
What we supply in this category
Seamless Carbon Steel Pipe20#, 45#, A106 Gr.BView specifications →ERW Welded Steel Pipe (Round), DN15 to DN600Specifications & gradesView specifications →Hot-Dip Galvanized Seamless Steel PipeSpecifications & gradesView specifications →Spiral Welded Steel Pipe (SSAW), DN200–DN2600Specifications & gradesView specifications →Hot-Dip Galvanized Steel Pipe (Round), DN15 to DN300Specifications & gradesView specifications →Cast Iron Drainage Pipe & Fittings, DN50 to DN300Specifications & gradesView specifications →
Size range
| Product | Size range | Standard |
|---|---|---|
| Seamless pipe | OD 6 – 1020 mm, WT 1 – 120 mm | GB/T 8162, GB/T 8163, ASTM A106 |
| ERW welded pipe | DN15 – DN600 | GB/T 3091, EN 10219 |
| Spiral welded pipe (SSAW) | DN200 – DN2600 | GB/T 9711, API 5L |
| Hot-dip galvanized pipe | DN15 – DN300, zinc 30 – 700 g/m² | GB/T 3091, EN 10240 |
| Cast iron drainage pipe | DN50 – DN300 | GB/T 12772 |
| Length | 5.8 / 6 / 11.8 / 12 m, or cut to length | — |
Steel grades available
| Standard system | Grades |
|---|---|
| Carbon steel | 10#, 20#, Q195, Q235B, Q345B, A106 Gr.B, A53, St37, St52 |
| Alloy steel | 15CrMo, 12Cr1MoVG, 27SiMn, 42CrMo, 16Mn |
| Line pipe | API 5L L245 – L450 (X42 – X70), PSL1 and PSL2 |
| Stainless | 304, 304L, 316L, 321, 310S, 2205 |
| Oil & gas | API 5CT J55, K55, N80, L80, P110, C90, T95 |
Why buyers source this category from us
- One order, several pipe types. Seamless, welded, galvanized and spiral pipe can be consolidated — useful when a project needs a mixture of pressure pipe, structural pipe and drainage.
- End preparation at the mill. Bevelled, threaded with couplings, grooved, or plain end to your specification.
- Hydrostatic and NDT testing on request. Hydro test, eddy current, ultrasonic and X-ray inspection can be arranged with third-party witnesses.
- Coating and lining. Hot-dip galvanizing, 3LPE, FBE, cement mortar lining and epoxy coating can be applied before shipment.
Frequently asked questions
What is the difference between seamless and ERW welded pipe?
Seamless pipe has no weld seam and is preferred for high pressure, high temperature and critical applications. ERW pipe is made from coil with a longitudinal weld and is more economical for general structural and low-pressure service.
Can you supply API 5L line pipe?
Yes — API 5L PSL1 and PSL2 in L245 through L450 (X42 to X70), seamless or spiral welded, with third-party inspection certificates where required.
How is pipe protected for sea transport?
Ends are capped, bundles are strapped at fixed intervals and the whole bundle is wrapped in HDPE or, for galvanized pipe, left ventilated to avoid white rust. Bundle tags match the packing list.
What is the smallest and largest size you can supply?
From OD 6 mm capillary tube through to DN2600 spiral welded pipe. For very large diameters we would normally quote spiral welded rather than seamless.
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Need a quotation for steel pipes & tubes?
Send us the sizes, grades and quantities — we will come back with a firm offer including freight to your port.