Line pipes & general steel pipes
We supply steel line pipe for gas, oil, water and district-heating lines to EN ISO 3183 and API 5L (X42 – X70, PSL1 and PSL2), together with general pressure tube in P235TR1 and ASTM A53. Sizes range from small diameters to large welded pipe, with external PE or PP coating or internal cement-mortar or epoxy lining if required. For district heating we also supply pre-insulated pipes to EN 253.
- Sourced direct from manufacturers
- No minimum order quantity
- The complete package in one quote
Specification
- Outside diameter
- 10,3 – 2032 mm
- Wall thickness
- 1,73 – 59,54 mm
Material and standards
- Standards
- EN ISO 3183 · EN 10208 · API 5L · EN 10216-1 · EN 10217-1 · EN 253
- Material grades
- L245NE–L485ME · API 5L X42–X70 · P235TR1 · A53 Gr.B
Overview
- EN ISO 3183: L245NE – L485ME.
- EN 10208-1/-2: L235GA – L485QB.
- API 5L: Gr. B, X42 – X70, PSL1 and PSL2.
- General pressure tube: P235TR1 and ASTM A53 Gr. B.
- Sizes: from small diameters to large welded pipe, coated if required.
Delivery condition and strength class
In line-pipe designations the number refers to the minimum yield strength. The letter gives the delivery condition:
- N: normalised;
- Q: quenched and tempered;
- M: thermomechanically rolled.
Under API 5L, PSL2 means stricter chemical, mechanical and testing requirements than PSL1. Which one you need depends on line pressure, medium and the operator's specification.
Coating and project execution
- External coating: PE or PP.
- Internal lining: cement mortar or epoxy.
- District heating: pre-insulated pipes to EN 253.
- Fittings and flanges: high-yield fittings (ASTM A860 WPHY 42–70) and flanges (ASTM A694 F42–F70).
What to include in your RFQ:
- standard and strength class;
- PSL1 / PSL2;
- size;
- coating;
- pipe ends;
- lengths;
- certificate.
Frequently asked questions
Are L360NE and X52 the same?
They denote a similar strength level in two different standard systems. Use the designation in your design.
Size table
| DN | NPS | OD (mm) | Wall (mm) |
|---|---|---|---|
| – | – | 10,3–13,7 | 1,73–3,02 |
| DN10 | ⅜" | 17,2 | 1,8–3,2 |
| DN15 | ½" | 21,3 | 2–7,47 |
| DN20 | ¾" | 26,9 | 2,11–7,82 |
| DN25 | 1" | 33,7 | 2,6–9,09 |
| DN32 | 1¼" | 42,4 | 2,6–9,7 |
| DN40 | 1½" | 48,3 | 2,6–10,15 |
| DN50 | 2" | 60,3 | 2,77–11,07 |
| DN65 | 2½" | 76,1 | 2,9–10 |
| DN80 | 3" | 88,9 | 3,05–15,24 |
| DN100 | 4" | 114,3 | 3,05–17,12 |
| DN125 | 5" | 139,7 | 3,4–19,05 |
| DN150 | 6" | 168,3 | 3,4–21,95 |
| DN200 | 8" | 219,1 | 3,76–23,01 |
| DN250 | 10" | 273 | 4,19–28,58 |
| DN300 | 12" | 323,9 | 4,57–33,32 |
| DN350 | 14" | 355,6 | 6,35–35,71 |
| DN400 | 16" | 406,4 | 6,35–40,49 |
| DN450 | 18" | 457 | 6,35–45,24 |
| DN500 | 20" | 508 | 6,35–50,01 |
| DN600 | 24" | 610 | 6,35–59,54 |
| DN700 | 28" | 711 | 7,92–30 |
| DN800 | 32" | 813 | 7,92–30 |
| DN900 | 36" | 914 | 7,92–32 |
| DN1000 | 40" | 1016 | 9,53–32 |
| DN1200 | 48" | 1219 | 9,53–36 |
| DN1400 | 56" | 1422 | 12,5–40 |
| DN1600 | 64" | 1626 | 14,2–45 |
| DN1800 | 72" | 1829 | 16–50 |
| DN2000 | 80" | 2032 | 17,5–50 |
6 further non-DN outside diameters (73–1067 mm), e.g. inch and precision sizes.
Typically available from stock. Other sizes on request.
Listed items show the typical range; we also quote custom specifications.
Send us your material list – one quote for the complete package (pipe, fittings, flanges, gaskets, bolting), sourced direct from manufacturers, no minimum order.
Request a quote