Specifications
Oil hydraulic cylinders pipe1. 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!