Unisite Group Ltd.

Steel Longitudinal Pipes,Steel Longitudinal Weld Pipes,Steel Longitudinal Welded Round Pipe


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Steel longitudinal welded round pipe

Basic Info

Model No.: USA-037

Dimension: As Per Drawing/order

Inspection: Material, Construction, Dimension, Welding Seam, N

Grade: 10#-45#, Q195-Q345, X42-X80, L245-L255 Or Other Ma

Standard: API 5L, BS 1387, GB/T 3091-2001, GB/T9711, ASTM A5

Certificate: API BV

Application: Marine Steel Structure And Dredging Field And Oil

Tolerance: High Accuracy(ISO2768, ISO5817, ISO13920); Detail:

Surface: Sa2.5 Blasted And Two Or Three Layers Painted With

Thickness: 5-60

Steel Longitudinal Pipes: Steel Longitudinal Weled Pipe

Additional Info

Packaging: bulk package and bulk vessel transportation; frame container package and frame container transportation

Brand: UniSite

Transportation: Ocean,Land

Place of Origin: china mainland(zhejiang)

Certificate: API/BV/ISO

Product Description

Straight seam pipe is a Steel Pipe, weld steel pipe means parallel to the Longitudinal Pipe. Classified by the wall thickness of thin-walled and thick-walled straight seam pipe straight seam pipe; according to shape classification round pipe, square shaped tube or pipe; there are generally classified by use pipe, galvanized pipe, oxygen blowing pipe, wire casing, metric pipe, roller tube, deep well pump tube, automotive tube, transformer tube, welding thin-walled tube, welding shaped tube and spiral welded pipe.

Steel Longitudinal Weled Pipe

Main particulars



High accuracy(ISO2768, ISO5817, ISO13920); Detail: ID+/-2mm, Length within 5mm, straightness: <1mm/1m


10#-45#, Q195-Q345, X42-X80, L245-L255 or other materials


Spiral or Longitudinal single seam pipe or Longitudinal with crossing seams


As per drawing

Out diameter

Spiral: 219-3200mm

LSAW: 406-1420mm

SAW: 406-5080mm

Wall thickness

Spiral: 4-28mm

LSAW: 5-60mm

SAW: 5-150mm


API 5L, BS 1387, GB/T 3091-2001, GB/T9711, ASTM A53-2007, ASTM A252-1998

Special capacity

Can produce ID800*25 specification for Spiral Pipe


Sa2.5 blasted and two or three layers painted with highest quality


as per clients' requirements, normal weld stainless mark plate


material, construction, dimension, welding seam, non defective test, paint inspection


Recyclable, in line with environmental requirements and standards, and reliable

Product classification
According to weld shape classification: Can be divided into straight seam welded pipe and spiral welded pipe
ERW: simple production process, high production efficiency, low cost, rapid development.
Spiral welded pipe: intensity is generally better than straight seam welded pipe is high, can use a narrow diameter of billet production larger pipe can also differ with the same width of the billet production diameter pipe. But with the same length of Straight Pipe, weld length of 30~100%, and the production rate is low. Therefore, most of the small caliber pipe welded, large diameter welded pipe mostly using spiral welding.

Our service

Besides above the general specifications, we can also supply some specific pipes and other similar steel structure as clients' requirements.

Package and shipping

bulk package and bulk vessel transportation

frame container package and frame container transportation

Photos of our Steel longitudinal welded round pipe

Steel Longitudinal Pipes Steel Longitudinal Welded Pipe Steel Longitudinal Welded Round Pipe for sale Steel Longitudinal Welded Round Pipe

Our certificates

BV Manufactuer capability steel pontoon

floating pontoon

steel pontoon

How to contact us?

Send your Inquiry Details in the Below, Click "Send" Now!

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Product Categories : Steel Pipe > Longitudinal Pipe

Product Images

  • Steel longitudinal welded round pipe
  • Steel longitudinal welded round pipe
  • Steel longitudinal welded round pipe
  • Steel longitudinal welded round pipe
  • Steel longitudinal welded round pipe
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