Hebei Huayang Steel Pipe Co., Ltd. |
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Big Diameter S275 S275JR S275JRH Submerged Arc Welded Pipe
Floating pipelines are either formed of steel pipes supported at
regular intervals by buoyancy units or surrounded by a buoyant
case, or they are composed of pipes made of a buoyant material.
In all these cases the pipeline must be built to be flexible enough
to endure the movement of the sea and currents. The pipe itself may
be made flexible by inserting ball joints in the line at regular
intervals or by adding lengths of flexible pressure hose. All
floating pipelines are made in a modular fashion and are connected
together by bolts or quick coupling devices.can be unlined, made of various grades of steel, cast iron or
aluminium for greater wear resistance, or lined with rubber.
Rubber-lined pipes have considerably greater resistance to wear
than unlined steel pipes, provided that the particles are neither
too sharp nor too large and that the operating temperature is not
too high. A steel pipe is smoother than a rubber-lined pipeline and
therefore the pipeline resistance of a steel pipe is lower than the
pipeline resistance of a rubber pipeline. Steel pipes are
non-flexible and generally non-floating, but can be made to float
with ring floats, pontoons, or they can be produced as floating
pipelines with a floating body.
Usage: | Used for dredging field |
SAW: | Submerged arc welded pipe |
LSAW: | Longitudinal submerged arc welding pipe |
SAWL: | Submerged arc welded longitudinal pipe |
Standard: | EN 10219 |
Certificate: | ISO 9001, ISO 14001, OHSAS 18001, API 5L PSL1&PSL2, CE (CPR & PED), GOST Certificates |
Out Diameter: | 406.4mm - 1422.4mm (16"-56") |
Wall Thk: | 9.53mm-50mm |
Length: | 6M-12.5M |
Steel Grade: | EN10219: S275, S275JR, S355JRH, S355J2H |
Surface: | Bare pipe |
Tests: | Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (DWT, Guided Bend Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, RT (X-Ray Test) |
MTC: | EN 10204/3.1B, EN 10204/3.2 (with Third Party Inspection) |