Round tube pipes

Over 100 years of reliability and precision

Flender HFI longitudinally welded pipes are put to use in a wide range of different sectors – in steel construction, in the piping sector or as smoke tubes for compression stresses at a range of temperatures. We also manufacture round tube pipes, support-roller pipes, boiler tubes and pipe ingots for our customers. Safely meeting all manufacturing norms is the bare minimum for us. In any case, we usually tend to exceed these requirements. Flender has now been a byword for tangible product quality for more than 100 years.

Our company is certified in accordance with DIN EN ISO 9001:2008 and is an approved manufacturer in line with DGRL 97/23 EG and AD2000.

 

Area of aplication:

Data and facts

Sizes and weights

Wall 1,0
1,5
2,0
2,3
2,6 2,9 3,2 3,6 4,0 4,5 5,0 5,4 5,6 5,9 6,3 7,1 8,0 8,8 10,0
Ø (mm)
weight (kg/m)
60,3 2,18 2,88 3,29 3,70 4,10 4,51 5,03 5,55 6,19 6,82 7,31 7,55 7,91 8,39 9,31
70,0 2,53 3,35 3,84 4,32 4,80 5,27 5,89 6,51 7,27 8,01 8,60 8,89 9,33 9,90 11,01 12,23
76,1 2,76 3,65 4,19 4,71 5,23 5,75 6,44 7,11 7,95 8,77 9,41 9,74 10,21 10,84 12,08 13,43
82,5 3,00 3,97 4,55 5,12 5,69 6,26 7,00 7,74 8,66 9,56 10,27 10,62 11,14 11,84 13,20 14,70
88,9 3,23 4,29 4,91 5,53 6,15 6,76 7,57 8,37 9,37 10,34 11,12 11,50 12,08 12,83 14,32 15,96
101,6 3,70 4,91 5,63 6,35 7,06 7,76 8,70 9,63 10,78 11,91 12,81 13,26 13,92 14,81 16,55 18,47
108,0 3,94 5,23 6,00 6,76 7,52 8,27 9,27 10,30 11,50 12,70 13,66 14,14 14,85 15,80 17,67 19,73
114,3 4,17 5,54 6,35 7,16 7,97 8,77 9,83 10,90 12,20 13,50 14,50 15,01 15,77 16,78 18,77 20,97
133,0 8,36 9,30 10,20 11,50 12,70 14,30 15,80 17,00 17,60 18,50 19,70 22,00
139,7 8,79 9,78 10,80 12,10 13,40 15,00 16,60 17,90 18,50 19,50 20,70 23,20
159,0 10,03 11,16 12,30 13,80 15,30 17,10 19,00 20,50 21,20 22,30 23,70 26,60 29,79
168,3 13,00 14,60 16,20 18,20 20,10 21,70 22,50 23,60 25,20 28,20 31,60 34,60
193,8 15,03 16,90 18,70 21,00 23,30 25,10 26,00 27,30 29,10 32,70 36,60 40,10 45,30
219,1 17,00 19,10 21,20 23,80 26,40 28,50 29,50 31,00 33,10 37,10 41,60 46,50 51,60

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Dear visitor to this website,

the Rudolf Flender Rohr GmbH pipe production in Siegen was permanently closed on December 31, 2020. The production is closed and all supplies and machines have been sold. We ask you to pay attention to this!

To preserve, remember and honor the work of all employees who have written a total of 110 years of company history, this website remains online, even if no more products are offered for sale.

To contact us, please dial +49 (271) 3305-0 or email: info@flender-rohr.de.

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