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Cold Drawn Precision Welded Steel Tube DOM Tube Stabilizer Straight Steel Pipe

Place of Origin Jiangsu
Brand Name Hongbao
Certification TS16949, ISo9001
Model Number HBWS-001
Minimum Order Quantity 2MT
Price Negotiable
Packaging Details Packaging: Wooden cases
Delivery Time Negotiable
Supply Ability 800MT/Month
Product Details
Material 26MnB5 Length Random Or Fixed Length
Shape Round Technical Seamless Or Welded
Standard EN10305-1, EN10305-2 Etc Name Welded Carbon Steel Tube
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Product Description

Cold Drawn Precision Welded Steel Tube DOM Tube Stabilizer Straight Steel Pipe

 

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 .

 

Steel Grade and Chemical Compositions

Steel Grade C Si Mn P S
Steel Name Steel Number max max max max max
E155 1.0033 0.11 0.35 0.70 0.025 0.025
E195 1.0034 0.15 0.35 0.70 0.025 0.025
E235 1.0308 0.17 0.35 1.20 0.025 0.025
E275 1.0225 0.21 0.35 1.40 0.025 0.025
E355 1.0580 0.22 0.35 1.60 0.025 0.025

 

 

aRm: tensile strength; ReH: upper yield strength; A: elongation after fracture
b 1Mpa=1N/mm2
c Depending on the degree of cold work in the finishing pass the yield strength may nearly be as high as the tensile strength.
For calculation purposes the following relations are recommended:
for delivery condition +C: ReH ≥0.8 Rm
for delivery condition +LC: ReH ≥0.7 Rm
d For calculation purposes the following relation is recommended:ReH≥0.5Rm

 

 

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

 

Precision camshaft Tube Small Outside Diameter Welded Pipe 26MnB5 34MnB5 For Cam

 

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.

Main Date
Material: E355
Other Aviliable Material: E155 E195 E235 E275
Outer Diameter Range: 10-50mm
Wall Thickness Range: 1.5-8mm
t/D ≥ 0.2(Normal: t/D=0.1)
Standard: En10305-2
Process: Cold Drawn, Cold Rolling

Delivery 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.
Cold Drawn Precision Welded Steel Tube DOM Tube Stabilizer Straight Steel Pipe 0
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