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You are here: Home » News » Industry Knowledge » What is the difference between the UOE&JCOE Pipe technologies for LSAW PIPES?

What is the difference between the UOE&JCOE Pipe technologies for LSAW PIPES?

Views:11     Author:Site Editor     Publish Time: 2019-03-05      Origin:Site

What is the difference between the UOE&JCOE Pipe technologies for LSAW PIPES?

What is the difference between the UOE&JCOE Pipe technology for LSAW PIPES

   Analysis about Capability and Cost of UOE&JCOE Pipeline Key Words: 

   UOE welded pipe,JCOE welded pipe,LSAW steel pipe,DSAW steel pipe

   UOE and JCOE are two advanced ways to produce large Diameter

   Longitudinal submerged welded pipe.The form type is different between them.

   From the internal&external line welding to the end of square cut, beveled ends, 

 cold expand the diameter,Hy test,UT test,X ray test,End test,length measure,weight 

   and marking,3PE,3PP Coating etc.two of third is completely the same.Now we study 

   the production process of UOE and JCOE,comparing the differences of production 

   ability(diameter,thickness and production efficiency etc.







1. Forming

UOE Two step: Form U, Form O

JCOE Six step: Form J, Take Out, Put in J type, Form C, Take Out, Backward bending

2.

Form

OD/mm

WT/mm

Yield 

to tensile

Production 

capacity(ton)

Residual stress

Accuracy

Efficiency

UOE

508-1422

6.4-25.4

0.89

400000

low

high

high

JCOE

406-1626

6.4-60

>0.9

200000

high

low

low

3. Production Cost

 The cost of JCOE is lower than UOE

4. Flexible: JCOE is more Flexible more easily than UOE to change mold, for different pipe size production.


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