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Oil Cylinder Welded precision steel pipe for lifting equipment

1000.0 USD
Min. Order: 5 Ton
Trade Term: FOB
Payment Terms: L/C, T/T
Supply Ability: 3000tons
Place of Origin: Zhejiang

Company Profile

Location: Ningbo, Zhejiang, China (Mainland)
Business Type: Manufacturer, Trading Company
Main Products: Precision Seamless Steel Tubes And Pipes, EN10305-4 Hydraulic Bending Precision Seamless Steel Tubes, Heat Exchanger Steel Pipe, Exchanger And Condenser Tubes, DOM Mandrel Drawn Steel Tube For Machinery

Product Detail

Model No.: EN10305-2
Means of Transport: Ocean, Air, Land
Production Method: Cold drawn based on welded tubes
Application: Auto parts, Shock absorber, Oil Cylinders
Production Capacity: 3000tons
Packing: IN bundles /wooden boxes
Delivery Date: 30-70days
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Product Description

1. Standard:   
EN10305-2
Steel tubes for precision applications

2. Steel Grade:
E155,E195,E235,E275,E355
, other materials upon agreement with customers.

3. Production method:
Cold drawn on the weled steel tubes, to reach high accuracy on the OD and WT tolerance

4.Size range:

O.D.:20-220mm     W.T.:1-15mm      L:max12000mm

5. Packing:
In Hexagonal Bundles, wth 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 suitab 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 cold drawing operation the tubes are normalized in a controlled atmosphere

Please specifiy the final heat treatment when sending the enquiry.


7.Main Features:
Smooth surface,high accuracy, excellent brightness, high cleanness inside wall.

8.Main Application:
used in automobile and in the occasion where the high precision , brightness, cleanness of the tube are required.




                                       Steel Grade and Chemical Compositions:
Steel GradeCSiMnPS
Steel nameSteel numbermaxmaxmaxmaxmax
E1551.00330.110.350.700.030.025
E1951.00340.150.350.700.030.025
E2351.03080.170.351.200.030.025
E2751.02250.210.351.400.030.025
E3551.05800.220.351.600.030.025
                                       Mechanical properties at room temperature






Steel gradeMinimum values for the delivery conditiona b
Steel name(+Cc)(+LCc)(+SR)(+Ad)(+N)
Rm MpaA %Rm MpaA %Rm MpaReH MpaA %Rm MpaA %Rm MpaReHe MpaA %
E1551.00334006350103502451826028270 to 41015528
E1951.00344206370103702601829028300 to 44019528
E2351.03084906440104403251431525340 to 48023525
E2751.0225560551085103751239021410 to 55027521
E3551.0580640459065904351045022490 to 63035522


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 calclulation purposes the following relation is recommended:ReH≥0.5Rm
e For tubes with outside diameter ≤30mm and wall thickness ≤3mm the ReH minimim values are 10Mpa lower than the values given in this Table

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

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