ASTM A36 pipe

Dear Sirs:

I am searching for providers or manufactures for rolled and welded pipes, based on the specification as follows:

Material: ASTM A36 or A139 (Grade B)

Item a) OD 18" , Wall 5/8" , Qty 33 pcs L=20'

Item b) OD 18" , Wall 1/2" , Qty 33 pcs L=20'

Electrical resistance welding : ERW

Interior coating Epoxy with bitumen base

Exterior coating Epoxy with zinc base

The pipe will be used for a penstock prolongation in existing Hydroelectric Plant.

The maximun static pressure is about 810 psi.

Hydrostatic test will be need.

I will appreciate any comment.

Thanks in advance

Eng. Nelson García G.

ngg@entelnet.bo