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ST52 ST45 ST35 EN10305 Precision Steel Tubes Mechanical Welded Steel Tube
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
Quick Details
Standard: EN10305-1, EN10305-2, EN10305-4, etc.
Grade: St52, St45, ST35
Thickness: 0.5-15 mm
Section Shape: Round
Outer Diameter(Round):4-120 mm
Place of Origin: Jiangsu, China (Mainland)
Technique: Cold Drawn
Certification: TS16949, ISO9001
Alloy Or Not: Non-alloy
Material: ST35,ST45,ST52
Secondary Or Not: Non-secondary
.
Production Process:
Cold rolling by Cold pilger machine and Cold rolling machine
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
Production Method:
The cold drawn welded tube is produced by drawing ERW (electric
resistance welded tube).During this process the sizing (wall
thickness, inside and outside diameter), as well as weld integrity
and surface finish is closely controlled to produce tube of the
required size and mechanical property characteristics.
Advantage (compare with seamless cold drawn tube):
Better shape
Improved quality surface
Tight Excentricity and wall thickness tolerances (the eccentric
Tube more safety
Good toughness at low temperature
USA Market: 90% of the cylinder in the USA market are produced with
welded tubes
Cost fix Lengths More Cheaper
Application: for car parts
RFQ:
Q: Are you trading company or manufacturer ?
A: We are factory/manufacture.
A: 30% T/T in advance ,balance before shippment or BL at sight.
If you have another question, pls feel free to contact us.