Honed Steel Pipe
2 year ago
Quilted steel pipe is a high-precision steel pipe material processed by cold drawing or hot rolling. Due to the characteristics of no oxide layer on the inner and outer walls of the precision steel tube, no leakage under high pressure, high precision, high smoothness, no deformation in cold bending, no flaring, no cracks in flattening, etc., it is mainly used for the production of pneumatic or hydraulic components, such as air cylinders or cylinders, Can be seamless tube. Our hot-selling products include structural steel pipes, fluid steel pipes, boiler steel pipes, etc.
1. Description: Honed tube is a kind of smooth bore steel tube used to manufacture hydraulic cylinder barrels that is the core part of a piece of hydraulic cylinder.
2. Commodity: Cold drawn seamless honed tube for hydraulic cylinder
3. Size range: 40mm*30mm-580mm*500mm
4. Available steel grade:
|
EN 10305-1 |
E195, E235, E355, C35E, C45E, E410, E470, S355J2, S355J2G3, 25CrMo4, 34CrMo4, 42CrMo4 |
|
DIN 2391-2 |
ST37, ST44, ST52 |
|
ASTM A519 |
1010, 1020, 1026, 1045, 1518, 1524, 1541, 4130, 4140, 4145, 4340, 8620 |
|
JIS |
STKM 13A, STKM 13B, STKM 13C |
|
GB |
Q345B, 25Mn, 16Mn, Q345D, Q345E, 20#, 45#, 20CrMo, 25CrMo, 30CrMo, 35CrMo, 42CrMo |
5. Manufacture method: Cold rolled, hydraulic cold drawn, hot rolled+deep hole boring
6. Delivery condition:
|
BK |
BKW |
BKS |
GBK |
NBK |
Q+T |
|
+C |
+LC |
+SR |
+A |
+N |
|
|
Cold rolled |
Cold drawn |
Stress relieved |
Annealed |
Normalized |
Quenched+Tempered |
7. Bore treatment: Honing, skiving&roller burnishing
8. Bore roughness control: Ra0.25um max or Ra0, 35um max for honed tubes, Ra0.25um max for skived&roller burnished tubes.
9. End finish: Plain ends with square cuts, free of burrs for honed tubes. Little bevelled ends for skived&roller burnished tubes.
10. Standard export packing: In bundles tied with steel strips. Int&ext oil coating. End plastic caps. External packing by PVC bags and knit bags.
11. Customized packing and marking can be provided upon request.
Hydraulic Cylinder Tube------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.
Honed tube ----- used in Elevator buffer 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.
Cold finished tube---- Widely Used. Processing range 30-300mm, biggest length is 11M.
|
Hydraulic Cylinder Honing Tube |
|||||
|
Inside Dia
(mm) |
ID Tolerance (mm) |
WT Tolerance
(mm) |
|||
|
H7 |
H8 |
H9 |
H10 |
||
|
≤30 |
+0.021/0 |
+0.033/0 |
+0.052/0 |
+0.084/0 |
±7.5% >210mm ±10% |
|
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 |
|
|
Steel Grade |
Chemical Composition % |
|||||
|
C |
Si |
Mn |
P |
S |
Al |
|
|
≤ |
≥ |
|||||
|
20# |
0.17-0.24 |
0.17-0.37 |
0.35-0.65 |
0.035 |
0.035 |
/ |
|
45# |
0.42-0.50 |
0.17-0.37 |
0.50-0.80 |
0.035 |
0.035 |
/ |
|
Q345B |
≤0.2 |
≤0.5 |
1.00-1.60 |
0.03 |
0.03 |
/ |
|
Q345D |
≤0.2 |
≤0.5 |
1.00-1.60 |
0.03 |
0.03 |
0.015 |
|
25Mn |
0.22-0.29 |
0.17-0.37 |
0.70-1.00 |
0.035 |
0.035 |
/ |
|
27SiMn |
0.24-0.32 |
1.10-1.40 |
1.10-1.40 |
0.035 |
0.035 |
/ |
|
ST52 |
≤0.22 |
≤0.55 |
≤1.6 |
0.025 |
0.025 |
/ |
|
SAE1026 |
0.22-0.28 |
0.15-0.35 |
0.60-0.90 |
0.04 |
0.05 |
/ |
|
Delivery Condition |
Cold Finished (hard) (BK) |
Cold Drawn and Stress-relieved (BK+S) |
|||
|
Steel Grade |
Tensile Strength |
Elongation |
Tensile Strength |
Yield Strength |
Elongation |
|
20# |
≥550 |
≥8 |
≥520 |
≥375 |
≥15 |
|
45# |
≥640 |
≥5 |
≥600 |
≥520 |
≥10 |
|
16Mn |
≥640 |
≥5 |
≥600 |
≥520 |
≥14 |
|
25Mn |
≥640 |
≥5 |
≥600 |
≥510 |
≥15 |
|
27SiMn |
≥800 |
≥5 |
≥760 |
≥610 |
≥10 |
|
ST52 |
≥640 |
≥5 |
≥600 |
≥520 |
≥14 |
|
SAE1026 |
≥640 |
≥5 |
≥600 |
≥510 |
≥15 |
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