Weldable structural steel
API 5L X65 non-alloy structural steel
API 5L X65 / L450 is one of the most frequently specified line pipes above X52.
- Delivery conditions
- +AR or +N
- Also known as
- L450, L450QE, L450QB, L450MB, X65Q
Designations
- EN standard
- API 5L X65
- Group
- Non-alloy structural steel
What it is used for
Trunk lines where X65Q or L450QE is specified.
Limits
X60 as the step down. X70 when 70 is the class.
Delivery
We source API 5L X65 from European mill partners as plate, flat bar, round bar, seamless tube, welded tube, cut to your dimensions and ship the certificate with the material. Typical condition: +AR or +N. From a single cut piece to larger lots — with no minimum charge, so you do not have to buy a full commercial length to get what you need.
Certificates and documentation
API 5L X65 can be supplied with a material certificate to EN 10204, depending on producer, dimension and the requirements specified for the delivery. On welded structures it is the analysis, the strength class and — where the standard requires it — the impact toughness that the certificate must show. EN 10204 3.1 can be supplied on a wide range of our materials, and 3.2 is ordered when the project requires third party.
Dimension programme
| Form | Range | Note |
|---|---|---|
| Plate | Only if the drawing is plate | H and hollow section grades are tubes. Plate is the corresponding EN 10025 grade. |
| Seamless tube | Ø6–Ø2000 mm | Seamless DIN/EN. Wall to EN 10220. State DN, wall and 3.1/3.2. |
| Welded tube | Ø6–Ø2000 mm | Welded DIN/EN. Wall to EN 10220. State weld seam and certificate. |
| Fittings | Ø12–Ø2000 mm | ASME 1/2–60″ (Ø15–Ø1524 mm). Type A and B. Not a stock statement. |
| Flanges | Ø14–Ø2000 mm | ASME 1/2–60″ (Ø15–Ø1524 mm). PN 6–400. Not a stock statement. |
The range is a delivery programme, not a stock statement. Length is cut to your drawing.
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Send your enquiry
State grade, dimensions and quantity — or attach a drawing. We reply with a quote.