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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 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:

Packing of erw pipe

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