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Pre - Galvanized 50mm Welded Steel Tube / Pipe 6 - 350mm Outer Diameter

Pre - Galvanized 50mm Welded Steel Tube / Pipe 6 - 350mm Outer Diameter

  • High Light

    spiral welded steel pipe

    ,

    erw precision steel tubes

  • Standard
    ASTM, DIN
  • Standard2
    ASTM A513-2007, DIN EN 10305
  • Grade Group
    10#-45#, Q195-Q345, ST35-ST52
  • Grade
    10#, 20#, Q195, Q215, Q235, Q345, St37, St37-2, ST37.4, St45, St52, St52.4
  • Thickness
    1 - 35 Mm
  • Section Shape
    Round
  • Outer Diameter(Round)
    6 - 350 Mm
  • Secondary Or Not
    Non-secondary
  • Application
    Hydraulic Pipe
  • Technique
    Cold Drawn
  • Surface Treatment
    Oil
  • Characteristic
    Precision Cold Drawn Tube
  • Production Method
    Drawn Over A Mandrel (DOM)
  • Keyword
    50mm Welded Steel Pipe Tube
  • Place of Origin
    Zhejiang, China (Mainland)
  • Certification
    ISO 9001 TS16949 ISO 14001
  • Minimum Order Quantity
    negotiable
  • Price
    negotiable

Pre - Galvanized 50mm Welded Steel Tube / Pipe 6 - 350mm Outer Diameter

 

Professional supply high strength pre-galvanized 50mm welded steel pipe tube

 

 

 

EN10305-2 Cold Drawn Welded Precision Steel Tubes DOM tubing E155,E195,E235,E275,E355 +C +LC +SR +A +N

DOM is a process that is applied to tubing after it is initially constructed.It is refferred to as Seamless ,It can be said that do seamless process method on ERW tubes,So the tubes will have a high strength ,high quality .Material form E155  E195 E235 E275 E355 1020 1026 and so on .DOM tubing is commonly use in auto parts . 

 50mm welded steel pipe tube

Production Process: 
Cold rolling by Cold pilger machine and Cold rolling machine
Size: 20-350mm


1. Standard: 
EN10305-2 Cold Drawn Precision Seamless Steel Pipes


2. Steel Grade: 
E155,E195,E235,E275,E355, other materials upon agreement with customers.


3. Production method: 
Cold drawn on the welded steel tubes, to reach high accuracy on the OD and WT tolerance


4. Size range: 
O.D.:20-350mm W.T.:1-35mm L:max12000mm


5. Packing: 
In Hexagonal Bundles, with anti-rust oil protection, with seaworthy packing 


6. Deliver condition:
1). +C No heat treatment after the final cold drawing process
2). +LC After the final heat treatment there is a suitable drawing pass
3). +SR After the final cold drawing process there is a stress relieve heat treatment in a controlled atmosphere
4). +A After the final cold drawing process the tubes are annealed in a controlled atmosphere
5). +N After the final cold drawing operation the tubes are normalized in a controlled atmosphere

 

QUALITY CONTROL

1~ Incoming Raw Material Inspection
2~ Raw Material Segregation to avoid steel grade mix-up
3~ Heating and Hammering End for Cold Drawing
4~ Cold Drawing and Cold Rolling, on line inspection
5~ Heat Treatment, +A, +SRA, +LC, +N, Q+T
6~ Straightening-Cutting to specified length-Finished Measuring Inspection
7~ Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness,                  Impact, Mictrostruture etc
8~ Packing and Stocking.

 

FAQ.jpg

Q: Are you trading company or manufacturer ?

A: A professional steel pipes materials inventor, manufacturer and solution provider

Q: How long is your delivery time?

A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but need pay the cost of freight.

Q: What is your terms of payment ?

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us