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

Product Specification

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

EN10305-2 Welded Precision Cold Drawn Steel Tubes
Applications:

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                                                   

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:

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)