The
strategic importance of oil and gas transportation and distribution for
the energy supply has emphasized the production of line steel pipe.
Corrosion proofing, water based paint is applied on the outside pipe
surface to protect against atmospheric corrosion during transportation
and storage and a 3-layer protective PE coating can be applied on pipes
at the Customer's request.
Line steel pipes are long distance pipelines for combustible liquids
and gases. Seamless line pipes used for construction of long distance
pipelines for combustible liquids and gases, nuclear station pipelines,
heating system pipelines, general-purpose pipelines. Thus, toughness
requirements for line steel tubes are more complex than the tensile
property requirements.
Line steel pipes are manufactured and smelted in the electric furnace,
treated with synthetic slags and cast by continuous casters. The applied
steel making process ensures the achievement of chemically pure steel
with reference to sulphur and phosphor contents providing high tensile,
ductility and corrosion resistance properties of pipes to be operated at
low temperatures in various corrosion media.
