STEEL PIPES

Pipe types

Gas pipes

Oil pipes

Water pipes

General purpose pipes

Pilling & construction pipes

 

Production method

SAWH - Helical Submerged Arc Welding

ERW - Electric Resistance Welding

 

Outer diameter

SAWH - 14’’ - 100’’

ERW -  1/2" - 12 3/4"

 

Pipe length

Between 6 and 18 meters

 

Coating

Internal coating - Epoxy (liquid)

External coating - FBE, Epoxy (liquid), Polyethylene (PE), Polypropylene (PP).

Gas, oil and water pipes are produced with both internal and external

 

 

Pipe type Production Standards

Gas pipes & Oil pipes

API 5L/ISO 3183 : Requirements of PSL 1 & PSL 2 Annex G : Resistance to ductile fracture propagation Annex H : For Sour Service

EN 10208 : Requirements of Part 1 & Part 2

GOST 20295 : Requirements of Type 1, 2 and 3

Water pipes

With protective OD and/or ID coating, plain (beveled) or sleeve welded joints.

EN 10217-1 : SAWH & ERW

EN 10224 : SAWH & ERW

AWWA C 200 : SAWH & ERW

BS 534 : SAWH & ERW

General purpose pipes

EN 10217-3 : SAWH - Alloy, fine grain,

Service condition: max 400°C, min -50°C

EN 10217-5 : SAWH - Alloy or non-alloy,

Service condition: max 400°C

EN 10217-6 : SAWH - Non-alloy,

Service condition: - 40°C

ASTM A139 : SAWH

Pilling & Construction pipes

ASTM A 252 : SAWH

EN 10219 : SAWH & ERW

EN 10210 : SAWH & ERW

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