Construction Pipes

Other diameters and thicknesses

Diam. 21,3 and diam. 273,- mm up to 406,- mm and thicknesses higher than 8,0 mm. could be supplied on request.

Quality

The pipes can be produced according to EN 10219 and with steel grade according EN 10025.
Other steel grades can be supplied on request.

Length

Commercial length: 6.000/12.000 mm with tolerance -0/+50 mm.
Fix length: from mm 1.000 up to mm 14.000.
Tolerances: -0/+50 mm, -0/+10 mm, -0/+5 mm, -0/+2 mm.
Particular lengths and narrower tolerances can be supplied on request.

Services

Zinchitalia supplies pipes according to Standards EN 10240 and ASTM A53.
Our working range includes round pipes from 3/8” (17,2 mm) to 6” (168,3 mm) and construction pipes from 20 x 20 up to 120 x 120 in lengths up to 8,50 mt.
The hot –dip galvanizing process is automatically operated by a new plant of 10 ton/h capacity that consists in the following operations:

• Acid base degreasing
• Pickling
• Fluxing
• Washing
• Pre-heating
• Immersion in hot zinc bath
• Extraction
• Blowing
• Cooling
• Straightening
• Marking
• Packaging

Each product is tested and approved according to EN 10240 (squashing test, curving and zinc mass calculation).


CHEMICAL COMPOSITION
Steel grade C % max Mn % max Si % max P % max S % max N %max Cu % max
S235JR 0,17 1,40 0,035 0,035 0,012 0,55
S235J0 0,17 1,40 0,030 0,030 0,012 0,55
S235J2 0,17 1,40 0,025 0,025 0,55
S275JR 0,21 1,50 0,035 0,035 0,012 0,55
S275J0 0,18 1,50 0,030 0,030 0,012 0,55
S275J2 0,18 1,50 0,025 0,025 0,55
S355JR 0,24 1,60 0,55 0,035 0,035 0,012 0,55
S335J0 0,20 1,60 0,55 0,030 0,030 0,012 0,55
S335J2 0,20 1,60 0,55 0,025 0,025 0,55
MECHANICAL CHARACTERISTICS
Steel grade ReH
N/mm2
Rm N/mm2
Nominal thickness mm
Elongation %
Nominal thickness
<3 >=3
<=100
>1,5
<=2
<2
<=2,5
<2,5
<3
<=3
<=40
S235JR 235 360-510 360-510
S235J0 235 360-510 360-510 19 20 21 26
S235J2 235 360-510 360-510
S275JR 275 430-580 410-560
S275J0 275 430-580 410-560 17 18 19 23
S275J2 275 430-580 410-560
S355JR 355 510-680 470-630
S335J0 355 510-680 470-630 16 17 18 22
S335J2 355 510-680 470-630
STANDARS CORRESPONDENCE
Old standard New standard Old standard New standard
UNI 6363 EN 10224 DIN 1628 EN 10217-1
UNI 7091 0,EN 10217-1 DIN 2440 EN 10255
UNI 8913 EN 10296-1 DIN 2441 EN 10255
UNI 8863 EN 10255 DIN 2394-1-2 EN 10305-3
UNI 7288 EN 10217-1 DIN 2460 EN 10224
UNI 7947 EN 10305-3 NF A 49150 EN 10224
DIN 1626 EN 10217-1 NF A 49541 EN 10219-1-2
The standars DIN 1615, DIN 2470-1, NFA 49250, EN 10208-1, EN 10217-2 are still in force.
THICKNESS
ø mm
THICKNESS mm
1,8 2 2,3 2,6 2,9 3,2 3,6 4 4,5 5 5,6 5,9 6,3 7,1 8
26,9 1,11 1,23 1,4 1,56 1,72 1,87
33,7 1,42 1,56 1,78 1,99 2,2 2,41 2,67 2,93
38 1,61 1,78 2,02 2,27 2,51 2,75 3,05 3,35
42,4 1,8 1,99 2,27 2,55 2,82 3,09 3,44 3,79
51 2,18 2,42 2,76 3,1 3,44 3,77 4,21 4,64 5,16 5,67
60,3 2,60 2,88 3,29 3,7 4,11 4,51 5,03 5,55 6,19 6,82 7,55 7,92 8,39
70 3,03 3,35 3,84 4,32 4,8 5,27 5,9 6,51 7,27 8,01 8,89 9,33 9,9
76,1 3,3 3,65 4,19 4,71 5,24 5,75 6,44 7,11 7,95 8,77 9,74 10,21 10,84
88,9 3,87 4,29 4,91 5,53 6,15 6,76 7,57 8,38 9,37 10,35 11,5 12,08 12,83 14,32 16
101,6 4,91 5,63 6,35 7,06 7,77 8,7 9,63 10,78 11,91 13,26 13,92 14,81 16,55 18,47
108 5,23 6 6,76 7,52 8,27 9,27 10,26 11,49 12,7 14,14 14,86 15,8 17,67 19,73
114,3 6,35 7,16 7,97 8,77 9,83 10,88 12,19 13,48 15,01 15,77 16,78 18,77 20,97
121 6,73 7,59 8,45 9,3 10,42 11,54 12,93 14,3 15,94 16,75 17,82 19,94 22,29
127 7,07 7,98 8,88 9,77 10,96 12,13 13,59 15,4 16,77 17,62 18,75 20,99 23,48
133 7,41 8,36 9,3 10,24 11,49 12,73 14,26 15,78 17,59 18,49 19,69 22,04 24,66
139,7 8,79 9,78 10,77 12,08 13,39 15 16,61 18,52 19,47 20,73 23,22 25,98
152,4 9,61 10,69 11,77 13,21 14,64 16,41 18,18 20,27 21,32 22,7 25,44 28,49
159 10,03 11,16 12,3 13,8 15,29 17,15 18,99 21,19 22,28 23,72 26,6 29,79
165,1 10,42 11,6 12,78 14,34 15,89 17,82 19,74 22,03 23,16 24,67 27,67 30,99
168,3 10,62 11,83 13,03 14,62 16,21 18,18 20,14 22,47 23,63 25,17 28,23 31,63
177,8 12,51 13,78 15,47 17,14 19,23 21,31 23,78 25,01 26,65 29,89 33,5
193,7 13,65 15,03 16,88 18,71 21 23,27 25,98 27,33 29,12 32,67 33,64
219,1 15,46 17,04 19,13 21,22 23,82 26,4 29,49 31,02 33,06 37,12 41,65