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Oil Cylinders DOM Steel Tubing Carbon Steel Drawn Over a Mandrel Pipe

Product Details:
Place of Origin: China
Brand Name: TORICH
Certification: ISO 9001-2008 ISO 14001 TS 16949 DNV TUV
Model Number: EN10305-2
Payment & Shipping Terms:
Minimum Order Quantity: 5 tons
Price: 600-1200 USD/ton
Packaging Details: oil antirust in hexagonal bundles or upon customer‘s request
Delivery Time: 5-8weeks work days
Supply Ability: 60000tons annual

Detail Information

Material: Carbon Steel Steel Grade: E155 E195 E235 E275 E355
Size Range: O . D. : 6 - 350mm W . T . : 1 - 35mm L : Max12000mm Shap: Round
Production Method: Drawn Over A Mandrel (DOM) Heat Treatment Method: + Cc + LCc + SR + Ad + N
Standard: EN10305-2 Note: Special Steel Grade Is Also Available, According To Customer Request
High Light:

drawn over mandrel steel tube


drawn over mandrel steel tubing

Product Description

EN10305-2 DOM Steel Tubing for Oil Cylinders E155  E195  E235  E275 E355



EN10305-2 Welded Precision Cold Drawn Steel Tubes

for Auto industry

for machinery use

Oil Cylinder Tube

Motorcyle shock absorber                                                    
Auto shock absorber innder cylinder

Telescopic Cylinders             

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


Steel Grade:

 E155, E195, E235, E275, E355.


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


Heat treatment method:  

+Cc,  +LCc,  +SR,   +Ad,   +N

Note: Special steel grade is also available, according to customer request.

Please specify the steel grade and heat treatment mothod when sending the enquiry!


For Application of:

Oil Cylinder Steel Tubes  Steel Tubes for Oil Cylinders



Test Methods:

Tensile test


Flattening test


Drift expanding test


Dimensional inspection


Roughness measurement


Visual examination


Not-destructive testing

a. Test for longitudinal imperfections-  

-  Eddy current test - EN10246-3, level E3

-  ultrasonic testing - EN10246-7, level U3


b. Leak-tightness

-  Non-destructive testing for verification of leak-tightness shall be carried out in accordance with EN10246-1



EN10305 Consists of the following Parts under the general title " Steel tubes for precision applications - Technical delivery conditions "


Part 1:  Seamless Cold Drawn Tubes


Part 2:  Welded Cold Drawn Tubes


Part 3:  Welded Cold Sized Tubes


Part 4:  Seamless Cold Drawn Tubes for Hydraulic and Pneumatic Power Systems


Part 5:  Welded and Cold Sized Square and Rectangular Tubes


Part 6:  Welded Cold Drawn Tubes for Hydraulic and Pneumatic Power Systems


Normative references:


EN10002-1, Metallic materials - Tensile Testing - Part 1: Method of test at ambient temperature


EN10020,    Definition and classification of grades of steel


EN10021,    General technical delivery requirements for steel and iron products


EN10027-1, Designation systems for steel - Part 1 : Steel names, principal symbols


EN10027-2, Designation systems for steel - Part 2: Numerical systems


EN10052,     Vocabulary of heat treatment terms for ferrous products.


EN10204,     Metallic products - Types of inspection documents


EN10233,     Metallic materials - Tube - Flattening Test


EN10234,     Metallic materials - Tube - Drift expanding test


EN10246-1,  Non-destructive testing of steel tubes - Part 1:  Automatic electromagnetic testing of seamless and welded ( except submerged arc-welded) ferromagnetic steel tubes for verification of hydraulic leak-tightness


EN10246-3, Non-destructive testing of steel tubes - Part 3: Automatic eddy current testing of seamless and welded (except submerged arc-welded) steel tubes for detection of imperfections


EN10246-5, Non-destructive testing of steel tubes - Part 5: Automatic full peripheral magnetics transducer/flux leakage testing of seamless and welded ( except submerged arc-welded) ferromagnetic steel tubes for the detection of longitudinal imperfections


EN10246-7, Non-destructive testing of steel tubes - Qualification and competence of level 1 and 2 non-destructive testing personnel.


EN ISO377, Steel and Steel products - Location and preparation of samples and test pieces for mechanical testing  (ISO 377:1997)


EN ISO 2566-1, Steel - Conversion of elongation values - Part 1: Carbon and Low alloy steels (EN102566-1:1984)


EN 10168, Iron and steel products - Inspection documents - List information and description


ENV10220, Seamless and welded steel tubes - Dimensions and masses per unit length


EN10266,  Steel Tubes, fittings and structural hollow sections - Definitions and symbols for  use in product standards


EN ISO 4287,  Geometrical product specifications (GPS) - Surface Texture: Profile method - Terms, definition and surface texture parameters ( ISO 4287:1997)

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