ST 52 High Precision Seamless steel Tubes for Hydraulic Cylinder

Hydraulic cylinder tube st52 din2391 is a kind of after cold rolling processing of a kind of high precison steel tube, full name cold rolled precision seamless steel tube. Precision seamless steel tube wall inside and outside the precision seamless steel pipe seamless steel pipe without oxidation layars, under high pressure without lea, high precision, high finish, cold bending deformation, flaring, flattening without cracks,etc, it is mainly used to produce pneumatic or hydraulic components products, such as a cylinder or cylinder, are made seamless tube. the chemical composition of precision seamless steel tube with carbon sulfur C,Si, Mn, S, P, Cr.

The difference between precision steel pipe and seamless pipe:

Specifiation: 

1. Implementation of standards: DIN2391-1, GB/T3639, EN10305.
2. Material: Steel No. ST35(E235), ST37, ST24(E255), ST52(E355), 10#, 20#, 35#, 45#
3. Specification: 
    A. Precision Hydraulic Cylinder Seamless Tube Od 5-120mm
    B. Wall Thicknes From 0.8-15mm
    C. Tube Length Fixed or Random 
4. Certificate: SGS, TUV SUD, BV, ISO 9001-2011

01 Raw Material

02  Acid cleaning

03 Parkerizing&Saponifying

04 Cold Drawn

05 Leveling

06 Saw off bad section

07 Tempering

08 Leveling

09 Honing

10 Inspection

11 Oil Plated

12 Packing

13 Shipment

  Packing: 
   A..With Steel Belt in Bundle
   B. Oiled and Packing by Pvc Film or Plastic Bags