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Phone Number : +86-13736164628

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Carbon Steel Cold Drawn Dom Metal Tubing Welded Precision Steel Pipe

Minimum Order Quantity : 5Tons Price : USD800-1200/ton
Packaging Details : DOM Steel Tubes are packed in wooden boxes in seaworthy packing. Delivery Time : 30-45 work days
Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram Supply Ability : 5000 Tons per Year
Place of Origin: ZHEJIANG, CHINA Brand Name: TORICH
Certification: ISO9001, ISO14001, TS16949 Model Number: ASTM A513

Detail Information

Keyword: DOM Steel Tube Material: 1008 1010 1018 4130 4140 Etc
OD: 6mm-350mm WT: 1mm-35mm
Length: Max 12000mm Usage: For Machinery, Automotive Parts Industry
Production Method: ERW And Cold Drawn Delivery Condition: Sink-drawn, Normalizing,mandrel-drawn
High Light:

drawn over mandrel steel tube


dom metal tubing

Product Description

TORICH Carbon Steel Cold Drawn Welded Tube Precision Steel Pipe DOM Steel 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 .
Production Process:
Cold rolling by Cold pilger machine and Cold rolling machine
Size: 6-350mm
WT: 1.0-35mm
1. Standard:
EN10305-2 Cold Drawn Precision Seamless Steel Pipes
2. Steel Grade:
E155,E195,E235,E275,E355, other materials upon agreement with customers.

Steel grade Minimum values for the delivery conditionab  
+CC +LCC +SR +Ad +N
steel name steel number RmMPa A % RmMPa A % RmMpa ReHMPa A % RmMPa A % Rm MPa ReHCMPa A %
E155 1.0033 400 6 350 10 350 245 18 260 28 270 to 410 155 28
E195 1.0034 420 6 370 10 370 260 18 290 28 300 to 440 195 28
E235 1.0908 490 6 440 10 440 325 14 315 25 340 to 480 235 25
E275 1.0225 560 5 510 8 510 375 12 390 21 410 to 550 275 21
E355 1.0580 640 4 590 6 590 435 10 450 22 490 to 630 355 22
a. Rm: tensile strength ; ReH: upper yield strength (but see 11.1); A: elongation. For symbols for the delivery condition see Table 1.
b. 1 Mpa = 1 N/mm2
c. Depending on the degree of cold work in the finishing pass the yield strength may nearly be as high as the tensile strengths. 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 relations is recommended: ReH ≥0.5 Rm
e. For tubes with outside diameter ≤ 30 mm and wall thickness≤ 3mm, the ReH minimum values are 10 Mpa lower than the values given in this Table.

3. Production method:
Cold drawn on the welded steel tubes, to reach high accuracy on the OD and WT tolerance
4. Packing:
In Hexagonal Bundles, with anti-rust oil protection, with seaworthy packing
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 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 Steel Tube:
DOM Steel Tube Carbon Steel Cold Drawn Welded Tube Precision Steel Pipe
Carbon Steel Cold Drawn Dom Metal Tubing Welded Precision Steel Pipe 1


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.
100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.

Q: Are you trading company or manufacturer ?

A: We are factory.
Q: How long is your delivery time?

A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples of honed tube ? is it free or extra ?

A: Yes, we could offer the sample for free charge but do not 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.

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