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what is ERW pipe

Views:21     Author:bingo     Publish Time: 2016-03-02      Origin:Site

Production description of erw pipe
ERW pipe.jpg

ERW stands for Electric Resistance welded pipe. A plate rolled to become a pipe and welded using Electric Resistance Welding process. Usully for for high diemeter. (cheapest process avaiable) 
 
Common specification of erw pipe
OD Weight/pc
inch mm SCH10 SCH20 SCH30 STD  SCH40 SCH60 XS
4" 114.3 3.05
4.78 6.02 6.02
8.56
5" 141.3 3.4

6.55 6.55
9.53
6" 168.3 3.4

7.11 7.11
10.97
8" 219.1 3.76 6.35 7.04 8.18 8.18 10.31 12.7
10" 273 4.19 6.35 7.8 9.27 9.27 12.7 12.7
12" 323.8 4.57 6.35 8.38 9.53 10.31 14.27 12.7
14" 355.6 6.35 7.92 9.53 9.53 11.13 15.09 12.7
16" 406.4 6.35 7.92 9.53 9.53 12.7 16.66 12.7
18" 457.2 6.35 7.92 11.13 9.53 14.27 19.05 12.7
20" 508 6.35 9.53 12.7 9.53 15.09 20.62 12.7
22" 558.8 6.35 9.53 12.7 9.53
22.23 12.7
24" 609.6 6.35 9.53 14.27 9.53 17.48 24.61 12.7
26" 660.4 7.92 12.7
9.53

12.7

 

Size Tolerance:
a) Outer Diameter:  +/- 0.2mm
b) Thickness: +/- 0.02mm
c) Length: +/- 5mm
Production of erw pipe:

erw-pipe-processes.jpg

Packing of erw pipe
erw pipe packing .jpg
 

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