DIN 2391-2 St44 St52 St52.3 St52.4 Cold Drawn Seamless Honed Hydraulic Cylinder Pipe

DIN 2391-2 St44 St52 St52.3 St52.4 Cold Drawn Seamless Honed Hydraulic Cylinder Pipe

Part I: Merchandise INTRODUCTION
one. Description: 
CZPT cylinder pipe is a kind of steel tube used to manufacture hydraulic cylinder barrels that is the core component of a piece of hydraulic cylinder. We can manufacture both cold drawn pipes completely ready to hone and bore honed pipes.

two. Commodity: ST52 CZPT cylinder pipe

3. Measurement range: 40mm*30mm-580mm*500mm

four. Offered steel quality: 

SAE/AISI:  SAE1571, SAE1026, SAE1045, SAE4130, SAE4140
DIN:  ST52, ST52.3, ST52.four
EN:  E355, C45E, 25CrMo4, 42CrMo4, CK45, S45C, E410, E470
GB:  20#, 45#, 16Mn, Q345B, Q345C, Q345D, Q345E, 25Mn, 27SiMn, 

five. Manufacture strategy: Chilly rolled, hydraulic cold drawn, sizzling rolled+deep gap unexciting

six. Shipping situation: 

+C +LC +SR +A +N
Cold rolled Chilly drawn Stress relieved Annealed Normalized Quenched+Tempered

seven. Bore treatment method: 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. Stop finish: Plain ends with sq. cuts, cost-free of burrs for honed tubes. Minor bevelled finishes for skived&roller burnished tubes. 

10. CZPT export packing: In bundles tied with metal strips. Int&ext oil coating. Stop plastic caps. Exterior packing by PVC baggage and knit baggage. 

11. CZPTized packing and marking can be offered upon request. 

twelve. H8 tolerance: 

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

thirteen. Big difference amongst honed tube and skived&roller burnished tube: In hydraulic cylinder business, there are 2 solutions for bore treatment: Honing, and skiving&roller burnishing. Honing or skiving&roller burnishing leads to distinct inside surface picture, but the two guarantee very good roughness. 

Interior Surface Problem OF HONED TUBES:


Part II: Usually Questioned Queries
1. MOQ: 
CZPTly Min Order Quantity can be two-3 tons/dimensions for tubes with OD below 250mm, and 10 tons/dimensions for tubes with OD above 250mm. Sometimes, it depends on metal grade you want. If you need unique quality like E410, E470 or alloy steel tube, MOQ need to be ten tons/measurement at the very least. 
two. Supply Time: CZPTly, our shipping and delivery time for honed tubes is all around forty-60 times depending on the dimensions and portions. It will consider us 15-thirty times to get raw materials. For illustration, if you require 3 tons of modest measurement honed tubes 50mm*40mm with roughness of Ra0.25um max, it will take us at least 30 days to hone this size. 
3. Warranty&Guarantee: Warranty&assure interval is 6 months because we provide the tubes, and we are not dependable for top quality issue caused by wrong unloading or storage following cargo. We welcome customer’s inspection ahead of cargo. 
4. Payment Method: We acknowledge payment method like T/T, L/C, or D/P, but it relies upon on our investigation about buyers. We have a solution to assess the credit of consumers from all above the entire world, and time and volume of D/P we can release is decided by the analysis. 
five. Good quality Control: 90% of the tubes are produced from scorching rolled seamless pipes. So, quality of uncooked materials decided quality of concluded tubes. We obtain uncooked substance from secure suppliers who are top steel mills, and we examine the uncooked material as for each the specs. In the course of our manufacturing method, there is inspection and high quality manage in each stage. 

Part III: Organization INTRODUCTION
We are a manufacturer of chilly drawn, chilly rolled, and hydraulic cold drawn metal tubes with OD upto 356mm considering that 2002. Masking an spot of about 32000M2, we have twelve normal workshops with 2 hydraulic cold drawing benches, 4 chain chilly drawing benches, and 2 ERW mills. Our services covers all the manufacturing techniques from pickling, chilly drawing, heat managing, noticed chopping, straightening, inspection, packing to even more machining &turning, chilly drawing die fabrication, and gear repairation&upkeep. 

Manufacturing unit Appearance:

Raw Materials Inventory:




Noticed Chopping:






DIN 2391-2 St44 St52 St52.3 St52.4 Cold Drawn Seamless Honed Hydraulic Cylinder Pipe