Component I: Item INTRODUCTION
1. Description: Honed tube is a kind of easy bore steel tube utilized to manufacture hydraulic cylinder barrels that is the core component of a piece of hydraulic cylinder.
2. Commodity: E470 cold drawn seamless steel tube
3. Dimensions selection: 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, 20MnV6 |
| GB: | twenty#, forty five#, 16Mn, Q345B, Q345C, Q345D, Q345E, 25Mn, 27SiMn, |
five. Manufacture strategy: Cold rolled, hydraulic chilly drawn, scorching rolled+deep gap unexciting
6. Delivery situation:
| BK | BKW | BKS | GBK | NBK | Q+T |
| +C | +LC | +SR | +A | +N | |
| Chilly rolled | Cold drawn | Tension relieved | Annealed | Normalized | Quenched+Tempered |
7. Bore treatment method: Honing, skiving&roller burnishing
eight. Bore roughness management: Ra0.25um max or Ra0, 35um max for honed tubes, Ra0.25um max for skived&roller burnished tubes.
nine. Machining&turning: as for each drawing
ten. Tough chrome plating: as for every ask for.
eleven. CZPT export packing: In bundles tied with steel strips. Int&ext oil coating. End plastic caps. Exterior packing by PVC bags and knit baggage.
twelve. CZPTized packing and marking can be supplied upon ask for.
thirteen. H8 tolerance:
| ID variety | Tolerance | ID range | Tolerance |
| 18< d ≤30 | +/+.033 | a hundred and eighty< d ≤250 | +/+.072 |
| 30< d ≤50 | +/+.039 | 250< d ≤300 | +/+.081 |
| fifty< d ≤80 | +/+.046 | 300< d ≤315 | +/+.081 |
| eighty< d ≤120 | +/+.054 | 315< d ≤400 | +/+.089 |
| one hundred twenty< d ≤180 | +/+.063 | four hundred< d ≤500 | +/+.097 |
thirteen. Big difference between honed tube and skived&roller burnished tube: In hydraulic cylinder sector, there are 2 solutions for bore treatment method: Honing, and skiving&roller burnishing. Honing or skiving&roller burnishing sales opportunities to different interior floor impression, but both ensure good roughness.
20MnV6 Chilly DRAWN SEAMLESS TUBES:
HOLLOW PISTON RODS MACHINING&TURNING:
Part II: Frequently Questioned Concerns
1. MOQ: CZPTly Min Order Amount can be two-3 tons/dimension for tubes with OD below 250mm, and ten tons/dimension for tubes with OD earlier mentioned 250mm. Occasionally, it relies upon on metal grade you require. If you need particular grade like E410, E470 or alloy steel tube, MOQ ought to be ten tons/dimensions at minimum.
two. Shipping Time: CZPTly, our supply time for honed tubes is around 40-sixty days dependent on the sizes and quantities. It will consider us 15-30 times to get raw material. For example, if you need 3 tons of small size honed tubes 50mm*40mm with roughness of Ra0.25um max, it will get us at the very least 30 days to hone this dimensions.
3. Warranty&Assure: Guarantee&ensure period is 6 months given that we supply the tubes, and we are not accountable for high quality difficulty caused by wrong unloading or storage right after shipment. We welcome customer’s inspection ahead of cargo.
four. Payment Technique: We acknowledge payment approach like T/T, L/C, or D/P, but it is dependent on our investigation about buyers. We have a solution to consider the credit history of buyers from all over the planet, and time and volume of D/P we can release is established by the analysis.
5. Top quality Handle: ninety% of the tubes are created from very hot rolled seamless pipes. So, top quality of uncooked content decided top quality of completed tubes. We acquire raw material from steady suppliers who are top metal mills, and we examine the uncooked content as per the specifications. In the course of our production method, there is inspection and good quality management in every single phase.
Portion III: Organization INTRODUCTION
We are a manufacturer of chilly drawn, cold rolled, and hydraulic chilly drawn steel tubes with OD upto 356mm since 2002. Masking an area of about 32000M2, we have 12 common workshops with 2 hydraulic cold drawing benches, 4 chain chilly drawing benches, and 2 ERW mills. Our amenities handles all the creation methods from pickling, chilly drawing, heat treating, noticed slicing, straightening, inspection, packing to more machining &turning, cold drawing die fabrication, and tools repairation&servicing.
Factory Look:
Raw Substance Stock:
HYDRAULIC Cold DRAWING:
MULTI-ROLLER STRAIGHTENING:
STRAIGHTENING BY Press:
Saw Reducing:
LATHES:
HONING:
DEEP Hole Uninteresting/DRILLING:
SKIVING&ROLLER BURNISHING:
