Hot Sale cold drawn pre-galvanized welded tube hydraulic cylinders
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 .
welded tube hydraulic cylinders
Cold rolling by Cold pilger machine and Cold rolling machine
EN10305-2 Cold Drawn Precision Seamless Steel Pipes
2. Steel Grade:
E155,E195,E235,E275,E355, other materials upon agreement with
3. Production method:
Cold drawn on the welded steel tubes, to reach high accuracy on the
OD and WT tolerance
In Hexagonal Bundles, with anti-rust oil protection, with seaworthy
5. 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
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
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
7~ Machanical Testing in own labs with Tensile Strength, Yield
Strength, Elongation, Hardness, Impact, Mictrostruture etc
8~ Packing and Stocking.
Q: Are you trading company or manufacturer ?
A: A professional steel pipes materials inventor, manufacturer and
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
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