The honed tubes suitable for various kinds of Precision Mechanical Tube, Honed Cylinder Tubing and Hydraulic Cylinder, Construct use Multi Joint Tube, Steel Axis Pipe, Injection Machine and Robotic Arm. This tubing is ready to use for hydraulic cylinder applications without further ID processing.
Honed tube
Grade:
ST 52,ST52.3,CK45, E355, 16Mn, STKM13C, SAE1020, SAE1026, SAE1045
Size range
- Inside diameter from 40 to 1000mm, Max length 20 meters.
- Straightness: 0.5 /1000
- Tolerance EXT: DIN 2391
- Tolerance INT: ISO H8
- Roughness(Ra): 0.2 to 0.4µ
Type: cold drawing, normalizing treatment, honing.
Chemical composition(%)
| Si(Max) | Mn (Max) | C Max) | P (Max.) | S (Max) |
| 0.55 | 1.60 | 0.22 | 0.025 | 0.25 |
Mechanical properties:
| Tensile strength Min | Yield Point Min | Elongation % Min |
| 580 N/mm2 | 420 N/mm2 | 10 |
Marking: SunnySteel, 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℃, 27 J (only for special requirement)
High precision cold drawn tube(ready to honed tube) can also be supplied.
Tolerance standard:
| ID(mm) | TOLERANCE(mm) | |||
| H7 | H8 |
H9
|
H10
| |
≦30
|
+0.021/0
|
+0.033/0
|
+0.052/0
|
+0.084/0
|
30 - ≦50
|
+0.025/0
|
+0.039/0
|
+0.062/0
|
+0.100/0
|
50 - ≦80
|
+0.030/0
|
+0.046/0
|
+0.074/0
|
+0.120/0
|
80 - ≦120
|
+0.035/0
|
+0.054/0
|
+0.087/0
|
+0.140/0
|
120 - ≦180
|
+0.040/0
|
+0.063/0
|
+0.100/0
|
+0.160/0
|
180 - ≦250
|
+0.046/0
|
+0.072/0
|
+0.115/0
|
+0.185/0
|
250 - ≦315
|
+0.052/0
|
+0.081/0
|
+0.130/0
|
+0.210/0
|
315 - ≦700
|
+0.057/0
|
+0.089/0
|
+0.140/0
|
+0.230/0
|
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