St52 E355 St44 C45e Cold Rolled or Cold Drawn Seamless Honed Carbon Steel Tube for Hydraulic Cylinder Barrel

St52 E355 St44 C45e Cold Rolled or Cold Drawn Seamless Honed Carbon Steel Tube for Hydraulic Cylinder Barrel

Portion I: Product INTRODUCTION
1. Description: 
Honed tube is a kind of smooth bore steel tube employed to manufacture hydraulic cylinder barrels that is the main part of a piece of hydraulic cylinder. 

two. Commodity: ST52 chilly drawn seamless honed steel tube

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

four. Obtainable metal quality: 

SAE/AISI:  SAE1571, SAE1026, SAE1045, SAE4130, SAE4140
DIN:  ST52, ST52.three, ST52.4
EN:  E355, C45E, 25CrMo4, 42CrMo4, CK45, S45C, E410, E470
GB:  20#, forty five#, 16Mn, Q345B, Q345C, Q345D, Q345E, 25Mn, 27SiMn, 

five. Manufacture technique: Chilly rolled, hydraulic cold drawn, very hot rolled+deep gap boring

six. Shipping situation: 

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

seven. Bore remedy: Honing, skiving&roller burnishing

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

nine. Conclude complete: Basic finishes with sq. cuts, totally free of burrs for honed tubes. Minor bevelled finishes for skived&roller burnished tubes. 

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

11. CZPTized packing and marking can be provided upon ask for. 

twelve. H8 tolerance: 

ID variety 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
120< d ≤180 +/+.063 400< d ≤500 +/+.097

13. Big difference in between honed tube and skived&roller burnished tube: In hydraulic cylinder industry, there are 2 solutions for bore remedy: Honing, and skiving&roller burnishing. Honing or skiving&roller burnishing sales opportunities to distinct inner floor graphic, but both ensure good roughness. 

Inner Surface area Problem OF HONED TUBES:


Component II: Often Requested Inquiries
one. MOQ: 
CZPTly Min Order Quantity can be two-three tons/dimensions for tubes with OD underneath 250mm, and ten tons/measurement for tubes with OD over 250mm. Often, it relies upon on metal quality you need to have. If you need to have particular grade like E410, E470 or alloy metal tube, MOQ need to be 10 tons/measurement at minimum. 
two. Delivery Time: CZPTly, our delivery time for honed tubes is close to forty-60 days based on the sizes and portions. It will consider us 15-thirty times to get raw content. For example, if you need 3 tons of little size honed tubes 50mm*40mm with roughness of Ra0.25um max, it will take us at minimum 30 times to hone this dimensions. 
3. Warranty&Promise: Warranty&promise interval is 6 months since we deliver the tubes, and we are not accountable for quality dilemma brought on by improper unloading or storage after cargo. We welcome customer’s inspection before shipment. 
4. Payment Technique: We take payment strategy like T/T, L/C, or D/P, but it relies upon on our investigation about consumers. We have a solution to appraise the credit history of clients from all over the planet, and time and sum of D/P we can release is identified by the analysis. 
five. Quality Control: ninety% of the tubes are made from scorching rolled seamless pipes. So, good quality of uncooked content established top quality of concluded tubes. We acquire raw substance from stable suppliers who are foremost metal mills, and we examine the raw content as for every the technical specs. In the course of our creation method, there is inspection and quality manage in each and every stage. 

Element III: Business INTRODUCTION
We are a manufacturer of cold drawn, cold rolled, and hydraulic cold drawn steel 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 services addresses all the manufacturing processes from pickling, chilly drawing, heat managing, saw reducing, straightening, inspection, packing to further machining &turning, cold drawing die fabrication, and gear repairation&servicing. 

Manufacturing facility Look:

Raw Material Inventory:




Saw Slicing:






St52 E355 St44 C45e Cold Rolled or Cold Drawn Seamless Honed Carbon Steel Tube for Hydraulic Cylinder Barrel


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