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Seamless aluminium tubes can be ordered in all commercially available aluminium alloys in addition to high strength aluminium alloys which are required for more demanding applications. ALUnna has a number of extrusion presses equipped with mandrel piercing capability. This allows us to extrude a large range of extruded tubular dimensions from a number of different billet diameters. The size range for seamless extruded tubes ranges from 17 mm to 300 mm in diameter.

Tubes with a small outside diameter or thin wall thickness can be produced by a subsequent cold drawing process to achieve the final dimensions and tolerances. The following tables are a guide to the dimensions we offer:

Animation: Seamless Extrution (direkt)

Animation: Seamless Extrution (indirekt)

Sizes

Seamless extruded Tubes

1,5

2

3

4

5

7

10

15

20

25

30

40

50

55

17

x

21

x

x

x

x

25

x

x

x

x

x

35

x

x

x

x

x

x

45

x

x

x

x

x

x

x

55

x

x

x

x

x

x

x

x

60

x

x

x

x

x

x

x

70

x

x

x

x

x

x

x

x

90

x

x

x

x

x

x

x

x

x

110

x

x

x

x

x

x

x

x

x

x

140

x

x

x

x

x

x

x

x

x

x

x

160

x

x

x

x

x

x

x

x

x

180

x

x

x

x

x

x

x

x

x

x

200

x

x

x

x

x

x

x

x

x

230

x

x

x

x

x

x

x

x

260

x

x

x

x

x

x

280

x

x

x

x

x

290

x

x

x

300

x

x

perpendicular: Diameter in mm, horizontal: Wall thickness in mm

Seamless extruded an drawn Tubes

0,5

0,75

1

1,25

1,5

2

3

4

5

6

8

10

12

16

20

25

5

x

x

x

8

x

x

x

x

x

10

x

x

x

x

x

x

x

12

x

x

x

x

x

x

x

14

x

x

x

x

x

x

x

x

16

x

x

x

x

x

x

x

x

x

20

x

x

x

x

x

x

x

x

x

x

25

x

x

x

x

x

x

x

x

x

x

x

40

x

x

x

x

x

x

x

x

x

x

x

x

x

60

x

x

x

x

x

x

x

x

x

x

x

x

x

x

70

x

x

x

x

x

x

x

x

x

x

x

x

x

x

100

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

160

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

180

x

x

x

x

x

x

x

x

x

x

x

x

x

x

200

x

x

x

x

x

x

x

x

x

x

x

220

x

x

x

x

x

x

x

x

x

x

250

x

x

x

x

x

x

x

260

x

x

x

x

x

x

280

x

perpendicular: Diameter in mm, horizontal: Wall thickness in mm

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