Precision Pipe
These are profiled in steel obtained from steel bands through conformity and cold calibration, longitudinally soldered.
Ranges of precision hollow pipes
Range of Precision Pipes
Rounded 19 up to 127 see catalog
Square 20×20 up to 100×100 see catalog
Rectangular 20×15 up to 140×60 see catalog
Special 30×15 up to 135×76 see catalog
Characteristics of Dimensions and Shapes
The Precision Pipes produced by Rsteel – Fábrica de Tubos Metálicos, S.A. comply with every dimensional tolerance and form stipulated by the norm EN10305-3 for the rounded and flattened pipes and the norm EN10305-5 for the square and rectangular products.
Raw Materials
Coated Steels in continuity through heat immersion for cold conformity – Norma EN 10346
DX51D, DX52D, DX53D, DX54D, DX55D, DX56D, DX57D
We have pipes available in various steel grades, according to EN 10346, highlighting the DX51D grade with zinc coating Z200/Z275, which has the following properties:
Chemical composition
C (%) ≤ 0.180
Mn (%) ≤ 1.200
P (%) ≤ 0.120
S (%) ≤ 0.045
Si (%) ≤ 0.500
Ti ≤ 0.300
Mechanical characteristics
Yeld Tension Re — (MPa)
Traction rupture tension Rm 270 – 500 (MPa)
Extension following rupture A ≥ 22 (%)
Norm EN 10346
S220GD, S250GD, S280GD, S320GD, S350GD, S390GD, S420GD, S450GD, S550GD
We have pipes available in various steel grades, namely S220GD, S250GD and S350GD grades, with zinc coating Z200/Z275 and zinc-magnesium alloy ZM310/430, which have the following properties:
Chemical composition
C (%) ≤ 0.200
Mn (%) ≤ 1.700
P (%) ≤ 0.100
S (%) ≤ 0.045
Si (%) ≤ 0.600
Mechanical characteristics
Elasticity limits Rp0.2 220 ≥ (N/mm2)
Traction rupture tension Rm ≥ 300(N/mm2)
Extension following rupture A ≥ 20 (%)
Chemical composition
C (%) ≤ 0.200
Mn (%) ≤ 1.700
P (%) ≤ 0.100
S (%) ≤ 0.045
Si (%) ≤ 0.600
Mechanical characteristics
Elasticity limits Rp0.2 250 ≥ (N/mm2)
Traction rupture tension Rm ≥ 330 (N/mm2)
Extension following rupture A ≥ 19 (%)
Chemical composition
C (%) ≤ 0.200
Mn (%) ≤ 1.700
P (%) ≤ 0.100
S (%) ≤ 0.045
Si (%) ≤ 0.600
Mechanical characteristics
Elasticity limits Rp0.2 350 ≥ (N/mm2)
Traction rupture tension Rm ≥ 420 (N/mm2)
Extension following rupture A ≥ 16 (%)
Cold Rolled Steels – EN 10130
DC01, DC02, DC03, DC04, DC05, DC06 e DC07
We have pipes available in various steel grades, according to EN 10130 standard highlighting the DC01 grade which has the following properties:
Chemical composition
C (%) ≤ 0.120
P (%) ≤ 0.045
Mn (%) ≤ 0.600
S (%) ≤ 0.045
Mechanical characteristics
Elasticity limits Rp0.2 — / 280 (N/mm2)
Traction rupture tension Rm 270 – 410 (N/mm2)
Extension following rupture A ≥ 28 (%)
Heat rolled steels – EN 10111
DD11, DD12, DD13, DD14
We have pipes available in various steel grades, highlighting the DD11 grade which has the following properties:
Chemical composition
C (%) ≤ 0.120
P (%) ≤ 0.045
Mn (%) ≤ 0.600
S (%) ≤ 0.045
Mechanical characteristics
Lower yield tension ReL:
ReL 170 – 360 (N/mm2) (nominal thickness 1.00 ≤ E < 2.00)
ReL 170 – 340 (N/mm2) (nominal thickness 2.00 ≤ E ≤11.00)
Traction rupture tension Rm ≤ 440 (N/mm2)
Extension following rupture A (%):
A ≥ 22 % (nominal thickness 1.00 ≤ E < 1.50 mm)
A ≥ 23 % (nominal thickness 1.50 ≤E < 2.00 mm)
A ≥ 24 % (nominal thickness 2.00 ≤ E < 3.00 mm)
A ≥ 28 % (nominal thickness 3.00 ≤ E ≤ 11.00 mm)
Hot rolled products of construction steel – EN 10025-2
S235, S275, S355, S450
Steel grades S235 and S275 can be supplied in JR, J0 and J2 grades. Steel grade S355 can be supplied as JR, J0, J2 and K2 and steel grade S450 is supplied as J0. Below we present the properties of the most marketed products:
Chemical composition
C (%) ≤ 0.170
Mn (%) ≤ 1.400
P (%) ≤ 0.035
S (%) ≤ 0.035
N(%) ≤ 0.012
Cu (%) ≤ 0.550
Mechanical characteristics
Minimum upper yield tension ReH ≥ 235 (N/mm2)
Traction rupture tension Rm: 360 – 510 (N/mm2)
Extension following rupture A (%):
A ≥ 15 % (Nominal thickness E≤ 1.00 mm)
A ≥ 16 % (Nominal thickness 1.00 < E≤ 1.50 mm)
A ≥ 17 % (Nominal thickness 1.50 < E≤ 2.00 mm)
A ≥ 18 % (Nominal thickness 2.00 < E≤ 2.50 mm)
A ≥ 19 % (Nominal thickness 2.50 < E < 3.00 mm)
A ≥ 24 % (Nominal thickness 3.00 ≤ E≤ 40.00 mm)
Chemical composition
C (%) ≤ 0.210
Mn (%) ≤ 1.500
P (%) ≤ 0.035
S (%) ≤ 0.035
N(%) ≤ 0.012
Cu (%) ≤ 0.550
Mechanical characteristics
Minimum upper yield tension ReH ≥ 275 (N/mm2)
Traction rupture tension Rm:
Rm 430 – 580 (N/mm2) (Nominal thickness E < 3.00 mm)
Rm 410 – 560 (N/mm2) (Nominal thickness 3.00 ≤ E ≤ 100 mm)
Extension following rupture A (%):
A ≥ 13 % (Nominal thickness E≤ 1.00 mm)
A ≥ 14 % (Nominal thickness 1.00 < E≤ 1.50 mm)
A ≥ 15 % (Nominal thickness 1.50 < E≤ 2.00 mm)
A ≥ 16 % (Nominal thickness 2.00 < E≤ 2.50 mm)
A ≥ 17 % (Nominal thickness 2.50 < E< 3.00 mm)
A ≥ 21 % (Nominal thickness 3.00 ≤ E≤ 40.00 mm)
Chemical composition
C (%) ≤ 0.180
Mn (%) ≤ 1.500
P (%) ≤ 0.030
S (%) ≤ 0.030
N(%) ≤ 0.012
Cu (%) ≤ 0.550
Mechanical characteristics
Minimum upper yield tension ReH ≥ 275 (N/mm2)
Traction rupture tension Rm:
Rm 430 – 580 (N/mm2) (Nominal thickness E < 3.00 mm)
Rm 410 – 560 (N/mm2) (Nominal thickness 3.00 ≤ E ≤ 100 mm)
Extension following rupture A (%):
A ≥ 13 % (Nominal thickness E≤ 1.00 mm)
A ≥ 14 % (Nominal thickness 1.00 < E≤ 1.50 mm)
A ≥ 15 % (Nominal thickness 1.50 < E≤ 2.00 mm)
A ≥ 16 % (Nominal thickness 2.00 < E≤ 2.50 mm)
A ≥ 17 % (Espessura nominal 2.50 < E< 3.00 mm)
A ≥ 21 % (Nominal thickness 3.00 ≤ E≤ 40.00 mm)
Chemical composition
C (%) ≤ 0.180
Mn (%) ≤ 1.500
P (%) ≤ 0.025
S (%) ≤ 0.025
Cu (%) ≤ 0.550
Mechanical characteristics
Minimum upper yield tension ReH ≥ 275 (N/mm2)
Tensão de Rotura à tração Rm:
Rm 430 – 580 (N/mm2) (Nominal thickness E < 3.00 mm)
Rm 410 – 560 (N/mm2) (Nominal thickness 3.00 ≤ E ≤ 100 mm)
Extension following rupture A (%):
A ≥ 13 % (Nominal thickness E≤ 1.00 mm)
A ≥ 14 % (Nominal thickness 1.00 < E≤ 1.50 mm)
A ≥ 15 % (Nominal thickness 1.50 < E≤ 2.00 mm)
A ≥ 16 % (Nominal thickness 2.00 < E≤ 2.50 mm)
A ≥ 17 % (Espessura nominal 2.50 < E< 3.00 mm)
A ≥ 21 % (Espessura nominal 3.00 ≤ E≤ 40.00 mm)
Chemical composition
C(%)≤0.240
Mn(%) ≤ 1.600
P(%) ≤ 0.035
S(%) ≤ 0.035
N(%) ≤ 0.012
Cu(%) ≤ 0.550
Si(%)≤ 0.550
Mechanical characteristics
Minimum upper yield tension ReH ≥ 355 (N/mm2)
Traction rupture tension Rm:
Rm 510 – 680 (N/mm2) (Nominal thickness E < 3.00 mm)
Rm 470 – 630 (N/mm2) (Nominal thickness 3.00 ≤ E ≤ 100 mm)
Extension following rupture A (%):
A ≥ 12 % (Nominal thickness E≤ 1.00 mm)
A ≥ 13 % (Nominal thickness 1.00 < E≤ 1.50 mm)
A ≥ 14 % (Nominal thickness 1.50 < E≤ 2.00 mm)
A ≥ 15 % (Nominal thickness 2.00 < E≤ 2.50 mm)
A ≥ 16 % (Nominal thickness 2.50 < E< 3.00 mm)
A ≥ 20 % (Nominal thickness 3.00 ≤ E≤ 40.00 mm)
Chemical composition
C(%)≤0.200
Mn(%) ≤ 1.600
P(%) ≤ 0.030
S(%) ≤ 0.030
N(%) ≤ 0.012
Cu(%) ≤ 0.550
Si(%) ≤ 0.550
Mechanical characteristics
Minimum upper yield tension ReH ≥ 355 (N/mm2)
Traction rupture tension Rm:
Rm 510 – 680 (N/mm2) (Nominal thickness E < 3.00 mm)
Rm 470 – 630 (N/mm2) Nominal thickness 3.00 ≤ E ≤ 100 mm)
Extension following rupture A (%):
A ≥ 12 % (Nominal thickness E≤ 1.00 mm)
A ≥ 13 % (Nominal thickness 1.00 < E≤ 1.50 mm)
A ≥ 14 % (Nominal thickness 1.50 < E≤ 2.00 mm)
A ≥ 15 % (Nominal thickness 2.00 < E≤ 2.50 mm)
A ≥ 16 % (Nominal thickness 2.50 < E< 3.00 mm)
A ≥ 20 % (Nominal thickness 3.00 ≤ E≤ 40.00 mm)
Chemical composition
C(%)≤0.200
Si (%) ≤0.550
Mn(%) ≤ 1.600
P(%) ≤ 0.025
S(%) ≤ 0.025
Cu(%) ≤ 0.550
Mechanical characteristics
Minimum upper yield tension ReH ≥ 355 (N/mm2)
Traction rupture tension Rm:
Rm 510 – 680 (N/mm2) (Nominal thickness E < 3.00 mm)
Rm 470 – 630 (N/mm2) (Nominal thickness 3.00 ≤ E ≤ 100 mm)
Extension following rupture A (%):
A ≥ 12 % (Nominal thickness E≤ 1.00 mm)
A ≥ 13 % (Nominal thickness 1.00 < E≤ 1.50 mm)
A ≥ 14 % (Nominal thickness 1.50 < E≤ 2.00 mm)
A ≥ 15 % (Nominal thickness 2.00 < E≤ 2.50 mm)
A ≥ 16 % (Nominal thickness 2.50 < E< 3.00 mm)
A ≥ 20 % (Nominal thickness 3.00 ≤ E≤ 40.00 mm)
For further information