Spiral Welded Steel Tube SSAW Carbon Steel Pipe Canghai Nuclear
Products Description
Spiral steel pipe is a spiral seam steel pipe made of strip steel coil as raw material, often warm extruded and welded by automatic double wire double-sided submerged arc welding process. The spiral steel pipe sends the strip steel to the welding pipe unit, and the strip steel is rolled by multiple rolls. The strip steel is gradually rolled up to form a circular tube blank with an open gap. Adjust the reduction of the extrusion roll to control the weld gap at 1~3mm, and make both ends of the weld crater flush.
|
Commodity
|
Spiral Welded Steel Pipe
|
||||
|
Brand
|
Canghai Nuclear
|
||||
|
Outer diameter
|
ERW / HFW
|
LSAW / DSAW
|
SSAW / HSAW
|
RHS
|
SHS
|
|
|
1/8 - 20 inch
(10.3 - 508 mm) |
12 - 56 inch
(323.8 - 1420 mm) |
8 - 126 inch
(219 - 3200 mm) |
40 x 20 mm
- 1000 x 800 mm |
15 x 15 mm
- 1000 × 1000 mm |
|
Wall thickness
|
0.4 - 16 mm
|
6.0 - 40 mm
|
6.0 - 26 mm
|
1.0 - 30 mm
|
0.6 - 30 mm
|
|
Length
|
5.8 ~ 12.0 m or upon customers' requirements
|
||||
|
Standard
|
GB/T 3091, GB/T 13793, ASTM A252, ASTM A53, ASTM A500, EN 10210, EN 10219, API 5L,
DIN 1626/1615, DIN 17120, etc. |
||||
|
Grade
|
SS400, Q235, Q345, Q460, A572 Gr.50, A572 Gr.60, S235, S275, S355, Grade A/B, X42, X52,
X60, X70, etc. |
||||
|
Surface
|
Prime quality (bared, oiled, color paint, 3LPE, or other anti-corrosive treatment)
|
||||
|
Inspection
|
With Chemical Composition and Mechanical Properties Analysis;
Dimensional and Visual Inspection, also with Nondestructive Inspection. |
||||
|
Application
|
structure, electric power transmission tower projects, piling, water, oil & gas pipeline engineering, mechanical industry,
municipal projects, roads and its auxiliary facilities, etc. |
||||
|
Packing
|
Standard export, in bulk / bundles / nylon fabric bags with seaworthy packing;
or according to customers' requestments. |
||||
Submerged Arc Welding (SAW):
Spiral welded pipe: The low carbon carbon structural steel or low alloy structural steel strip is rolled into a tube blank according to a certain helix Angle (called forming Angle), and then the pipe seam is welded together, which can produce large diameter steel pipe with a narrower strip. The specification is expressed by the outer diameter * wall thickness, and the welded pipe should ensure that the water pressure test, the tensile strength of the weld and the cold bending performance should meet the requirements.
The production of spiral welded steel pipes can reflect the advantages of high quality and high efficiency. The production capacity of one spiral welded pipe unit is equivalent to 5-8 sets of straight seam welded pipe equipment. How to make multiple pipe coiling equipment production lines meet the same production standard, that is, produce according to a unified production process specification and quality assurance system to meet welding quality Requirements and piping manufacturing grades will be an arduous task.
Product Display
1.High static pressure blasting strength.
2.Good toughness.
3.Low probability of unstable fracture.
4.Good brittleness at low temperature.
5.Low cycle fatigue strength high.
6.Excellent chemical corrosion resistance.
7.High mechanical properties.
8.Strong wear resistance and adhesion.