Vallourec supplies seamless steel tubes for pressure purposes in accordance with EN10216‑2. The manufacturing program for outside diameters up to 711 mm and average wall thicknesses up to 100 mm is listed in the table below
(please click the image to enlarge):
Intermediate sizes are available on request. This size range is available for carbon grades, but can be different for alloyed grades.
Please note: tolerances can also be defined according to inside diameter and/or minimum wall thickness.
The diameter and the wall thickness of the tubes shall be within the tolerance limits given in this table in case of ordering tubes in outside diameter and average wall thickness.
*For outside diameters D ≥ 355.6 mm it is permitted to exceed the upper wall thickness locally by a further 5 % of the wall thickness TT = Ordered wall thickness; D= Outside
Tolerances can also be defined according to inside diameter and/or minimum wall thickness.