Seamless Tubes

Piercing plug made of TZMThere is no doubt that the seam of welded tubes is a really weak-point. Therefore, seamless tubes have to be used for applications with highest safety requirements. For the production of these tubes a solid block is penetrated by a piercing plug before the tube is brought to its desired size.

Piercing plugs from T & D, made of TZM, show perfect results with special-alloyed steels as well as the production of copper tubes - and outdo conventional piercing plugs made of special-alloyed steel

We supply Piercing plugs made of TZM

 

 

 

type

D

L

Basic sizes

Permissible deviation

Basic sizes

Permissible deviation

DM20
DM30
DM40
DM50

20
30
40
50

+3.0
0

60-80

+6.0
0 

80-110

DM60
DM70
DM80

60
70
80

+4.0
0 

160-200

+8.0
0 

DM90
DM100

90
100

+6.0
0 

180-260

DM110
DM130
DM150

110
130
150

+8.0
0 

200-300

+10.0
0  

DM160-250

160-250

+10.0
0

280-450

+15.0
0

chemical ingredients:

 Take molybdenum as matrix, prepare according
to: Ti: (1.0-2.0)%, Zr:(0.1-0.5)% and C:(0.1-0.5)%