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Carbon Steel Pipe

Carbon Steel Pipe

Carbon-steel-pipe

Most common and cost effective is carbon steel pipe and tubing including heavy
wall mechanical tubing and seamless steel pipe. We stock and distribute a
wide variety of steel pipe and steel
tubing in ASTM and ASME and API grades of steel. We can also supply
centrifugally cast tube and trepanned hollow bar as well.

The first methods for producing steel pipe were introduced in the early 1800s,
and they have steadily evolved into the modern processes we use today. Large
diameter steel pressure pipes for water and wastewater applications are
typically made with carbon steel and installed as buried assets. Steel pipe can
be made using three main methods:

  • Seamless (extrusion mold) – Hot steel is pushed through a
    die to create the pipe shape. Diameters of up to20”(500mm)
    can be made this way. Expensive but the most reliable.
  • Welded – A sheet of steel is wrapped around a form then
    welded at the seam. Less expensive but not as reliable as seamless for
    high-pressure situations.
  • Casting Mold – Hot liquid steel is poured into a mold. Not
    very common and as reliable as seamless.

The primary benefit of steel pipe is its strength. These pipes don’t crack
under most impacts and can operate under high pressure. Under abnormal loads,
steel will bend, rather than break.

Advantages

  • High tensile
    strength
  • High
    compressive strength
  • Range of
    corrosion protection systems
  • Wide range of
    diameters and wall thickness
  • Welded joints
    give continuity

Disadvantages

  • Prone to
    external corrosion
  • Electrolysis
    prone
  • Jointing
    requires skilled welders
  • Internal/external
    corrosion protection systems add to price
  • Coatings and
    linings can get damaged during installation and by third parties

Main Forms Failure in Steel Pipes

Form of Failure

Causes of Failure

Indicators of Failure

Break
failure

Pitting corrosion weakening wall

Damage to coating/linings, wall loss, pitting, and
leaks

Longitudinal
cracking

Thinning from general corrosion, and areas of pitting
corrosion

Graphitization, groups of pitting, and wall loss

Pipe
bursts

Third party damage

Construction activity

About NCTV

www.yaang.com provide a wide range of steel products as Steel pipe, Steel pipes and seamless pipes, Alloy pipes, Pipe fittings, Composite steel pipe used in the industry, construction etc.

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