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En10305-2 Precision Cold Drawn Dom Welded Steel Tube For Motorcycle Shock Absorbers

Minimum Order Quantity : 2 ton Price : USD 600-1200/Ton
Packaging Details : Packing in wooden box,hexagonal bundles or other seaworthy ways. Delivery Time : 15-25 days
Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram Supply Ability : 60000 Ton/Year
Place of Origin: Zhejiang China Brand Name: TORICH
Certification: ISO 9001 ISO 14001 TS 16949 Model Number: EN10305-2

Detail Information

Product Name:: EN10305-2 Welded Precision Cold Drawn DOM Steel Tube For Motorcycle Shock Absorbers Material:: E155 E195 E235 E275 E355
Surface:: With Anti Rust Oil Application:: Auto Shock Absorber Inner Cylinder, Telescopic Cylinders
Shape:: Round OD:: 50-350mm
WT:: 0.5-35mm Length:: 0.1-12.5m
Tolerance:: According To The Following Tables Or Customers’ Request. Spec:: General Length:4-12.5m
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Product Description


EN10305-2 DOM Pipe for Motorcycle Shock Absorbers



EN10305-2 Welded Precision Cold Drawn Steel Tubes

Applications: for Auto industry/for machinery use/Oil Cylinder Tube/Motorcycle shock absorber
Auto shock absorber inner cylinder/Telescopic Cylinders

Size range: O.D.:6-350mm W.T.:1-35mm L:max12000mm


Characteristic:High precision with smooth ID tolerance and roughness


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


Mechanical properties at room temperature
Steel Grade Minimum values for the delivery conditiona b
Steel Name (+Cc) (+LCc) (+SR) (+Ad) (+N)
Rm Mpa A % Rm Mpa A % Rm Mpa ReH Mpa A % Rm Mpa A % Rm Mpa ReHe Mpa A %
E155 1.0033 400 6 350 10 350 245 18 260 28 270-410 155 28
E195 1.0034 420 6 370 10 370 260 18 290 28 300-440 195 28
E235 1.0308 490 6 440 10 440 325 14 315 25 340-480 235 25
E275 1.0225 560 5 510 8 510 375 12 390 21 410-550 275 21
E355 1.0580 640 4 590 6 590 435 10 450 22 490-630 355 22

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
e For tubes with outside diameter ≤30mm and wall thickness ≤3mm the ReH minimum values are 10Mpa lower than the values given in this Table
Note: Special steel grade is also available, according to customer request.


For Application of:

Shock Abosorber Steel Tubes Steel Tubes for Shock Abosorber








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: 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, and 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 you need to 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

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