Specifications

Oil hydraulic cylinders pipe
1. ID 30-250mm
2. Max length 12 meters.
3.Technology:Cold drawn
4.Supply

Oil hydraulic cylinders pipe

HONED TUBE

Grade:ST 52

Metric size:

Inside diameter from 40 to 250mm

Max length 14m.

Straightness: 0.5 /1000
Tubes are provided according to the norm EN10305-1

Type:cold drawing

CHEMICAL COMPOSITION (%)

Si(Max)	Mn(Max)	C(Max)	P (Max.)	S(Max)
0.50	1.6	0.22	0.025	0.025

 MECHANICAL PROPERTIES

Tensile strength Min	Yield Point Min	Elongation % Min
580N/mm2	420N/mm2	10

 EXCENTRICITY

Outer Diameter	Excentricity
< =125 mm	5 %
> 125 mm	7 %

measured according to the formula:

E = (max Wt – min Wt)/( max Wt + min Wt) x 100 %

BORE OVALITY

The bore ovality is comprised in the 50 % of the inside diameter tolerances.

Marking: ID, OD

Length: unfixed length or fixed length

Package: banding with steel strips, braiding parcel at outside

Conservation: Anti rust oiled coating on the inside and outside of the surface, plastic caps at both ends.

Impact test: -20°C, 27 J (only for special requirement)

Production Process:

• Pretreatment : Pickling­—Phosphating—Saponification

 

 

 

• Cold drawn/cold rolled

 

 

• Annealing furnace——+SR

 

 

• Straightener—— Straightening

 

 

•  Straightness inspecting

 

 

• Dimension inspecting

 

  

 

• Sawing

 

 

Products inspecting

 

 

• Finished Products

 

 

    Our Reputation  

Our Machine (ZTG-2560)

CMC skiving and Roller burnishing Machines

 

 

Any Need or requirement, please Feel Free to contact us !

We will give out quotation in time!