| Tenaris produces cold formed seamless hollows for application in non-welded structures.
Tenaris’s micropoles are used as foundations that help bearing the structural loads of buildings and for special applications such as the support and reinforcement of terrains and structures. They have external diameters ranging from 60.3 to 406.4 mm, wall thickness from 4 to 30 mm and length from 6 to 18 metres, and can be specially designed to respond to customer’s needs and to the different characteristics of every project.
Tenaris’s hollows for structural applications fully comply with the Italian Normative System.
Mechanical characteristics |
Steel grades |
S 275 (TN 430) |
S 355 (TN 510) |
| Yield load strength |
≥ 275 MPa |
≥ 355 MPa |
| Tensile strength |
≥ 430 MPa |
≥ 510 MPa |
| Elongation % |
≥ 21 |
≥ 20 |
| Impact strength |
| (B) |
+20° C |
≥ 27 J |
| (C) |
0° C |
≥ 27 J |
|
| (B) |
+20° C |
≥ 27 J |
| (C) |
0° C |
≥ 27 J |
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