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Basic Info.
Product 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 Rolled Precision Honed Steel Pipe
3. Size range: Inside diameter: 25mm -500mm; Wall thickness: 2-50mm
4. Available steel grade:
| SAE/AISI: | SAE1020, SAE1026, SAE1045, SAE4130, SAE4140 |
| DIN: | ST52, ST52.3, ST52.4 |
| EN: | E355, C45E, 25CrMo4, 42CrMo4, CK45, S45C, E410, E470 |
| GB: | 20#, 45#, 16Mn, Q345B, Q345C, Q345D, Q345E, 25Mn, 27SiMn, |
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 |
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. Internal & external oil coating. Plastic caps on both ends. External packing by PVC bags and knit bags.
11. Customized packing and marking can be provided upon request.
12. H8 tolerance:
| ID range | Tolerance | ID range | Tolerance |
| 18< d ≤30 | +0/+0.033 | 180< d ≤250 | +0/+0.072 |
| 30< d ≤50 | +0/+0.039 | 250< d ≤300 | +0/+0.081 |
| 50< d ≤80 | +0/+0.046 | 300< d ≤315 | +0/+0.081 |
| 80< d ≤120 | +0/+0.054 | 315< d ≤400 | +0/+0.089 |
| 120< d ≤180 | +0/+0.063 | 400< d ≤500 | +0/+0.097 |
13. Difference between honed tube and skived & roller burnished tube: In hydraulic cylinder industry, there are 2 solutions for bore treatment: Honing, and skiving&roller burnishing. Honing or skiving&roller burnishing leads to different internal surface image, but both ensure good roughness.
Detailed pictures:
Our Advantages:
1) 20 years experience in steel industry.
2) Raw material checked,with good quality supplier.
3) Well stocked,professional service team.
4) Strict quality control in the production process and provision of MTC for each product.
5) Experienced technicians and engineers can meet the various needs of customers.
6) Before packing all products are cleaned and inspected.
Delivery and Packing:
1) Standard export package,suit for all kinds of transport,or as required.
2) All standard steel products are stocked, timely shipping as per clients request.
Q: How can I get the sample?
A: FREE samples are available for your checking and testing. And to get free samples, you needto send us you detailed receiving address (including post code) and your DHL /FedEx/UPS account for collecting samples, courier cost will be paid in your side.
Q:How can I get your price list?
A: Please send us your email or fax and order information - Quantity, Specification (steel type,thickness, width, surface finish), then I can send you the price list.
Q: Packing details?
A: We choose suitable package and reinforce for various steel products when loading and transport.
Q: What payment terms you can deal with?
A: Mostly we deal with T/T terms and L/C,for L/C we need to know which bank to open the L/C and after checking the bank information to decide whether to accept the L/C.If you have other preference, please negotiate.
Thanks for your reading and looking forward to your inquiry!