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Difference Of UOE&JCOE Pipeline For LSAW Pipes

Edit:Ausin Pipeline Material & Equipment Co.,Ltd   Date:Jul 13, 2016

Difference of UOE&JCOE Pipeline 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,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

 

 


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