Structural pipes

Round structural pipes

They are delivered to standard SRPS EN 10219-1 cold-formed, round, square and rectangular cross-section steel tubes for structures, shape and dimensions in standard SRPS EN 10219-2 welded steel tubes, shape and dimensions – without dimension testing:

  • outer diameter of 17,2 – 711 mm
  • wall thickness 1,5 – 12,5 mm

Round tubes are also supplied as standard SRPS EN 10217-2 i SRPS EN 10255 steel tubes without mechanical properties, for pipe thread and dimensions – hydro-tested.

Product dimensions:

Outer diameter (mm) Wall thickness (mm)
1,5 1,8 2 2,5 2,6 3 3,25 3,5 4 4,5 5 5,6 6,3 7,1 8 10 11 12,5
Longitudinal mass (kg/m)
17,2 0,58 0,68 0,75 0,91
21,3 0,73 0,86 0,95 1,16 1,20
25,4 0,88 1,05 1,15 1,41 1,46
26,9 0,94 1,11 1,23 1,50 1,56
31,8 1,12 1,33 1,47 1,81
33,7 1,19 1,42 1,56 1,92 1,99 2,27 2,44 2,61
38 1,35 1,61 1,78 2,19 2,59
40 1,42 1,69 1,87 2,31 2,74
42,4 1,51 1,80 1,99 2,46 2,55 2,91 3,14
44,5 1,59 1,90 2,10 2,59 3,07 3,30
48,3 1,73 2,06 2,28 2,82 3,35 3,61 3,86 4,37
51 1,83 2,18 2,42 2,99 3,55 3,83 4,10
56 2,40 2,66 3,33 3,92 4,23 4,53
60,3 2,17 2,60 2,88 3,56 4,24 4,57 4,90 5,55 6,19 6,82
63,25 3,02 3,74 4,46 4,81
76,1 2,76 3,65 4,54 5,41 5,84 6,26 7,11 7,95 8,77
88,9 4,29 5,32 5,53 6,35 6,86 7,37 8,38 9,37 10,30
101,6 6,11 7,29 7,88 8,46 9,63 10,80 11,90
108 7,76 8,39 9,02 10,30 11,50 12,70
114,3 8,23 8,90 9,56 10,90 12,20 13,50
127 9,17 10,65 12,10 15,00
133 9,61 10,39 11,17 12,70 14,30 15,80 17,60
139,7 13,40 15,00 16,60 18,50
159 15,30 17,10 19,00 21,20
168,3 16,20 18,20 20,10 22,50 25,20
219,1 26,40 29,50 33,10 37,10 41,60
273 33,00 36,90 41,40 46,60 52,30
323,9 39,30 44,00 49,30 55,50 62,30 77,40
355,6 43,20 48,30 54,30 61,00 68,60 85,20
406,4 49,50 55,40 62,20 69,90 78,60 97,80
457 55,70 62,30 70,00 78,80 88,60 110,00
508 62,00 68,40 77,90 87,70 98,60 123,00 135,00
610 83,50 93,80 106,00 119,00 148,00 162,00 184,00
711 109,00 123,00 139,00 173,00 190,00 215,00

Dimensions and longitudinal mass defined by the standard EN 10220

Product Specifications:

Deviations in dimensions and shape

  Round tubes
External dimensions ±1%, min±0,5mm max±1,0mm
Wall thickness D≤406,4 T≤5mm   ±10%
D≤406,4 T>5mm   ±0,5mm
D>406,4   ±10%(max±2mm)
Deviation from roundness *  2% for pipes with D/T≤100
Concavity / convexity /
Page rectangle /
External rounding  /
Weirdness /
rightness 0,20% total length

Variations in dimensions and shape according to the standard EN10219-2

*for D / T & gt; 100 deviations from roundness are agreed with the customer
T – thickness of pipe wall
D – outer diameter of pipe
H,B – page dimensions

Chemical composition

Steel grade % from the masses, max Max CEV %
Steel name Steel number C Si Mn P S N
S235JRH 1.0039 0,17 1,40 0,040 0,040 0,009 0,35
S275J0H 1.0149 0,20 1,50 0,035 0,035 0,009 0,40
S275J2H 1.0038 0,20 1,50 0,030 0,030 0,40
S355J0H 1.0547 0,22 0.55 1,60 0,035 0,035 0,009 0,45
S355J2H 1.0576 0,22 0.55 1,60 0,030 0,030 0,45
S355K2H 1.0512 0,22 0.55 1,60 0,030 0,030 0,45

The chemical composition defined by the standard EN10219-1

Mechanical characteristics

Steel grade Minimum yield strenght ReH Tensile strenght Rm Minimum elongation A Minimum impact energy KV
Steel name Steel number MPa Mpa % J
Specified thickness Specified thickness Specified thickness at test temperature of
mm mm  
≤ 16 > 16 ≤ 40 < 3 ≥ 3 ≤ 40 ≤ 40  
S235JRH 1.0039 235 225 360-510 360-510 24 24
S275J0H 1.0149 275 265 430-580 410-560 20 27
S275J2H 1.0038
S355J0H 1.0547 335 345 510-680 470-630 20 27
S355J2H 1.0576
S355K2H 1.0512

Mechanical characteristics according to standard EN10219-1