Part I: Merchandise INTRODUCTION
one. Description: Honed tube is a kind of sleek bore metal tube utilised to manufacture hydraulic cylinder barrels that is the core portion of a piece of hydraulic cylinder. 

two. Commodity: SAE1571 AISI 1571 chilly drawn seamless honed tubing for hydraulic cylinder

three. Dimension variety: 40mm*30mm-580mm*500mm

four. Available metal quality: 

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,

5. Manufacture strategy: Chilly rolled, hydraulic chilly drawn, sizzling rolled+deep hole uninteresting

6. Delivery problem: 

BK	BKW	BKS	GBK	NBK	Q+T
+C	+LC	+SR	+A	+N
Cold rolled	Cold drawn	Anxiety relieved	Annealed	Normalized	Quenched+Tempered

7. Bore remedy: Honing, skiving&roller burnishing

eight. Bore roughness handle: Ra0.25um max or Ra0, 35um max for honed tubes, Ra0.25um max for skived&roller burnished tubes. 

nine. Conclude end: Plain ends with sq. cuts, free of burrs for honed tubes. Minor bevelled ends for skived&roller burnished tubes. 

ten. CZPT export packing: In bundles tied with steel strips. Int&ext oil coating. Stop plastic caps. External packing by PVC baggage and knit bags. 

11. CZPTized packing and marking can be provided on request. 

twelve. H8 tolerance: 

ID range	Tolerance	ID assortment	Tolerance
eighteen< d ≤30	+/+.033	one hundred eighty< d ≤250	+/+.072
30< d ≤50	+/+.039	250< d ≤300	+/+.081
50< d ≤80	+/+.046	300< d ≤315	+/+.081
80< d ≤120	+/+.054	315< d ≤400	+/+.089
a hundred and twenty< d ≤180	+/+.063	400< d ≤500	+/+.097

13. Big difference amongst honed tube and skived&roller burnished tube: In hydraulic cylinder market, there are 2 solutions for bore treatment method: Honing, and skiving&roller burnishing. Honing or skiving&roller burnishing leads to diverse interior surface graphic, but each ensure good roughness. 

Inner Surface Problem OF HONED TUBES:

Inner Surface Issue OF SKIVED&ROLLER BURNISHED TUBES:

Portion II: Frequently Questioned Concerns
one. MOQ: CZPTly Min Order Amount can be 2-3 tons/dimension for tubes with OD under 250mm, and 10 tons/size for tubes with OD over 250mm. Occasionally, it relies upon on steel grade you need. If you need unique quality like E410, E470 or alloy steel tube, MOQ ought to be ten tons/size at the very least. 
2. Delivery Time: CZPTly, our supply time for honed tubes is close to forty-60 days dependent on the measurements and quantities. It will get us 15-30 times to get uncooked substance. For case in point, if you need 3 tons of small size honed tubes 50mm*40mm with roughness of Ra0.25um max, it will just take us at the very least 30 times to hone this dimensions. 
3. Guarantee&Guarantee: Warranty&assure period is 6 months considering that we supply the tubes, and we are not dependable for top quality issue triggered by mistaken unloading or storage soon after shipment. We welcome customer’s inspection prior to cargo. 
four. Payment Strategy: We accept payment method like T/T, L/C, or D/P, but it depends on our investigation about consumers. We have a solution to assess the credit score of customers from all in excess of the entire world, and time and volume of D/P we can launch is identified by the analysis. 
5. Good quality Management: ninety% of the tubes are made from scorching rolled seamless pipes. So, top quality of uncooked materials determined high quality of concluded tubes. We acquire uncooked content from steady suppliers who are major metal mills, and we inspect the raw content as for every the requirements. During our production process, there is inspection and top quality control in every stage. 

Element III: Business INTRODUCTION
We are a manufacturer of chilly drawn, chilly rolled, and hydraulic cold drawn metal tubes with OD upto 356mm because 2002. Masking an location of about 32000M2, we have twelve regular workshops with 2 hydraulic chilly drawing benches, 4 chain cold drawing benches, and 2 ERW mills. Our amenities handles all the creation procedures from pickling, chilly drawing, heat managing, noticed chopping, straightening, inspection, packing to additional machining &turning, chilly drawing die fabrication, and products repairation&routine maintenance. 

Manufacturing facility Look:

Uncooked Material Stock:

HYDRAULIC Cold DRAWING:

STRAIGHTENING:

Saw Slicing:

LATHES:

HONING: 

SKIVING&ROLLER BURNISHING: