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Help CenterHydraulic Cylinder Using Cold Finished and SRb Pneumatic Tube
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Hydraulic Cylinder using Cold finished and SRb pneumatic tube
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
- Lathe
- Polishing
- Products inspecting
- Finished Products
Our Reputation
Main products of Yantai Xinpeng Steel Pipe Co,.Ltd
1. Hydraulic Cylinder Tube------Main products of Xinpeng,
Used in the hydraulic cylinder of the heavy machinery, Cranes, excavator also forklifts. Material is various, mainly STKM-13CT ST52 CK45 and 1020. We can work and get the mechanical property of the clients need and extended the life of the hydraulic cylinder.
2.SRB tube ----- used inElevatorbuffer and Hydraulic Cylinder .This kind tube have a better roughness inner the tube, ra0.2-0.4um and can use directly in the hydraulic cylinder tube. Range: ID 50-250mm and Length can work at most 6M.
3. Cold finished tube---- Widely Used. Processing range 30-300mm, biggest length is 11M.
Xinpeng Have passed ISo9001 verified from 2008; each tube of ours is strictly in quality control that can assure the product quality of Xinpeng.
Technique Parameter
Material |
(OD)(mm) |
(ID) (mm) |
(Tolerance) |
||||
OD(mm) |
ID(mm) |
W.T(mm) |
Ovality |
Curvature |
|||
20# 45# Q345D 25Mn 42CrMo 27SiMn St35 St45 St52 St52.4 STKM13CT A519 … |
40-74 |
30-65 |
±0.01 |
-0.3,-0.5 |
≤0.5 |
≤0.1 |
0.3 |
74-98 |
65-85 |
±0.01 |
-0.4,-0.6 |
≤0.5 |
≤0.15 |
0.3 |
|
100-116 |
85-100 |
±0.02 |
-0.4,-0.6 |
≤0.6 |
≤0.15 |
0.3 |
|
124-134 |
110-115 |
±0.02 |
-0.6-0.8 |
≤0.6 |
≤0.20 |
0.3 |
|
140-158 |
120-135 |
±0.02 |
-0.7,-0.9 |
≤0.8 |
≤0.20 |
0.3 |
|
165-176 |
140-150 |
±0.02 |
-0.7,-0.9 |
≤0.8 |
≤0.20 |
0.3 |
|
188-203 |
160-180 |
±0.02 |
-0.7,-0.9 |
≤0.8 |
≤0.20 |
0.3 |
|
Any Need or requirement, please Feel Free to contact us !
We will give out quotation in time!
Our CUStomer
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