Portion I: Item INTRODUCTION
1. Description: ST52 Honed steel tube is a kind of easy bore metal tube utilized to manufacture hydraulic cylinder barrels that is the main portion of a piece of hydraulic cylinder.
2. Commodity: ST52 honed metal tube for hydraulic cylinder
three. Size assortment: 40mm*30mm-580mm*500mm
4. Obtainable steel grade:
| SAE/AISI: | SAE1571, SAE1026, SAE1045, SAE4130, SAE4140 |
| DIN: | ST52, ST52.3, ST52.four |
| EN: | E355, C45E, 25CrMo4, 42CrMo4, CK45, S45C, E410, E470 |
| GB: | twenty#, 45#, 16Mn, Q345B, Q345C, Q345D, Q345E, 25Mn, 27SiMn, |
five. Manufacture strategy: Cold rolled, hydraulic chilly drawn, sizzling rolled+deep gap boring
6. Shipping and 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 method: Honing, skiving&roller burnishing
eight. Bore roughness manage: Ra0.25um max or Ra0, 35um max for honed tubes, Ra0.25um max for skived&roller burnished tubes.
9. Finish end: Basic ends with square cuts, free of charge of burrs for honed tubes. Tiny bevelled ends for skived&roller burnished tubes.
10. CZPT export packing: In bundles tied with metal strips. Int&ext oil coating. Conclude plastic caps. External packing by PVC luggage and knit bags.
eleven. CZPTized packing and marking can be supplied upon ask for.
12. H8 tolerance:
| ID range | Tolerance | ID selection | Tolerance |
| eighteen< d ≤30 | +/+.033 | a hundred and eighty< d ≤250 | +/+.072 |
| thirty< d ≤50 | +/+.039 | 250< d ≤300 | +/+.081 |
| 50< d ≤80 | +/+.046 | three hundred< d ≤315 | +/+.081 |
| 80< d ≤120 | +/+.054 | 315< d ≤400 | +/+.089 |
| a hundred and twenty< d ≤180 | +/+.063 | 400< d ≤500 | +/+.097 |
thirteen. Distinction in between honed tube and skived&roller burnished tube: In hydraulic cylinder market, there are 2 solutions for bore therapy: Honing, and skiving&roller burnishing. Honing or skiving&roller burnishing sales opportunities to various interior surface picture, but both make sure good roughness.
Interior Area Situation OF HONED TUBES:
Inner Floor Issue OF SKIVED&ROLLER BURNISHED TUBES:
Element II: Frequently Asked Inquiries
one. MOQ: CZPTly Min Order Amount can be two-three tons/dimension for tubes with OD underneath 250mm, and 10 tons/size for tubes with OD previously mentioned 250mm. Often, it relies upon on steel quality you need. If you need unique quality like E410, E470 or alloy metal tube, MOQ should be ten tons/dimensions at the very least.
2. Supply Time: CZPTly, our shipping time for honed tubes is around forty-sixty times dependent on the sizes and quantities. It will consider us 15-thirty times to get raw substance. For illustration, if you need 3 tons of tiny measurement honed tubes 50mm*40mm with roughness of Ra0.25um max, it will consider us at least 30 times to hone this dimension.
3. Guarantee&Ensure: Guarantee&guarantee interval is 6 months considering that we supply the tubes, and we are not dependable for quality dilemma induced by improper unloading or storage after shipment. We welcome customer’s inspection ahead of shipment.
4. Payment Technique: We settle for payment method like T/T, L/C, or D/P, but it is dependent on our investigation about customers. We have a solution to consider the credit score of clients from all more than the world, and time and amount of D/P we can release is identified by the analysis.
five. Quality Manage: 90% of the tubes are manufactured from sizzling rolled seamless pipes. So, quality of uncooked materials established good quality of finished tubes. We acquire raw material from steady suppliers who are major metal mills, and we examine the raw material as for each the requirements. In the course of our manufacturing treatment, there is inspection and top quality control in each and every phase.
Portion III: Company INTRODUCTION
We are a manufacturer of cold drawn, cold rolled, and hydraulic chilly drawn metal tubes with OD upto 356mm considering that 2002. Covering an location of about 32000M2, we have twelve standard workshops with 2 hydraulic chilly drawing benches, 4 chain chilly drawing benches, and 2 ERW mills. Our services handles all the production procedures from pickling, cold drawing, warmth dealing with, noticed reducing, straightening, inspection, packing to even more machining &turning, chilly drawing die fabrication, and equipment repairation&maintenance.
Manufacturing facility Appearance:
Uncooked Material Inventory:
HYDRAULIC Cold DRAWING:
MULTI-ROLLER STRAIGHTENING:
STRAIGHTENING BY Push:
Saw Reducing:
LATHES:
HONING:
DEEP Hole Uninteresting/DRILLING:
SKIVING&ROLLER BURNISHING:
