Outside square inside Round Precision Steel Tubes

25*8 Mm Heavey Wall Thickness Outside Square Inside Round Precision Steel Tubes

TORICH is a professional heavy wall thickness tubes manufacturer of precision steel tubes for general purpose,

which is equipped with 20 lines of pipe production.

Outside square and Inside round precision steel tubes , is usually produced by carbon steel or alloyed steel,

production method can be cold drawning or cold rolled.

25*8mm precision steel tubes is usually based on technical standard EN10305-1,A519,GB/T8163 etc .

TORICH seamless special shaped tubes is usually produced based on the following technical standard

and Grade:

Standards: EN10305-1,A519,GB/T8163 or similar technical standard.

Steel Grade: 10,20,35,45,16Mn,20Cr,40Cr,15CrMo,20CrMo,28CrMo,35CrMo,42CrMo,4140,4130,20CrMoTi,

40MnMoV,16MnCr5,20MnCr5,65Mn,15Mo3 etc 

TORICH heavy wall thickness pipes can produce the Carbon steel and alloyed steel  Sizes Range:

OD: 10-120 mm

WT:1.2-20mm

Wall Thickness: can be by mutual agreement with customer.

Main Features for Alloy hot-rolled seamless pipes :

High accuracy on tolerance

Thick pipe

Good Concentricity

Production Process for 58*8mm alloy steel tubes:

Raw material storage 

Raw material inspection

cutting by saw machine

Hot perforation

Squeeze head

Raw Tube  Quantity Inspestion

Cycling Pickling 

Cycling Cold drawing/rolling

Cycling annealing

Straightening

Head&tail cutting

Eddy current inspection

Finished product inspection

Packing

Seamless special shaped tubes are usually used in the following scope:

• Automobile steel pipe

  bolting

  Fire hose street

  Steel tubes for machining

  Fluid transfer pipe

  Steel pipe for address drilling

  Steel pipe for agricultural Fittings

  Bicycle steel pipe

  Hydraulic cylinder pipe

  The chain

  Steel pipe for fasteners

  Steel tubes for petroleum machinery

Product show: