High Quality St52 Honed Oil Gas Hydraulic Cylinder Carbon Cold Drawn Seamless Steel Pipe Tube

• Type: Seamless
• Technique: Cold Drawn
• Material: Carbon Steel
• Surface Treatment: Oiled
• Usage: Hydraulic/Automobile Pipe, Food/Beverage/Dairy Products, Machinery Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Round
• Model NO.: bks-honed 01
• Surface: Black Varnished/3PE/3lpe/Galvanized
• Pipe Ends: Plain or Bevel Ends
• Coupling: with Coupling or Socket
• Length: 1m~12m
• Production Standard: SAE1020/1045/1026 St45 Ck45 St52 E355
• Material Grade: C20/C45/S355/E355/S235/St37/St52/St44
• Product Name: Cold Drawn Seamless Honed Precision Tube
• Package: Plywood Boxes
• ID Tolerance: 0.1mm Max
• Straightness: 1/1000
• ID Roughness: Ra 0.4micron(Max)
• Tolerance: H7 H8 H9 H10
• Delivery Condition: Bk, Bks, Nbk
• Inspection: Inner Surface NDT(Nondestructive Testing)
• Transport Package: Wrapped by Plastic Bags Andsteel Strips in Bundles
• Specification: OD: 16~400mm; THK: 3~40mm
• Trademark: Boerking
• Origin: Tianjin, China
• HS Code: 73041930
• Production Capacity: 10000ton/Year

Product Description

High Quality St52 Honed Oil Gas Hydraulic Cylinder Carbon Cold Drawn Seamless Steel Pipe Tube

Product information: 
 

1. Description: Honing is a kind of machining technology. Through honing head, the inner hole of cold drawn pipe is processed by reciprocating high-speed grinding technology, so that the inner hole can meet the requirements of tolerance size and surface roughness that we need.
Honed tube is a kind of smooth bore steel tube used to manufacture hydraulic cylinder barrels that is the core part of a piece of hydraulic cylinder. 
2. Commodity: 42CrMo4 Precision Cold Drawn Honed Pipe
3. Size range: Inside diameter: 25mm -500mm; Wall thickness: 2-50mm
4. Available steel grade: 

SAE/AISI:	SAE1020, SAE1026, SAE1045, SAE4130, SAE4140
DIN:	ST52, ST52.3, ST52.4
EN:	E355, C45E, 25CrMo4, 42CrMo4, CK45, S45C, E410, E470
GB:	20#, 45#, 16Mn, Q345B, Q345C, Q345D, Q345E, 25Mn, 27SiMn,

5. Manufacture method: Cold rolled, hydraulic cold drawn, hot rolled+deep hole boring
6. 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: Honing, skiving&roller burnishing
8. Bore roughness control: Ra0.25um max or Ra0, 35um max for honed tubes, Ra0.25um max for skived&roller burnished tubes. 
9. End finish: Plain ends with square cuts, free of burrs for honed tubes. Little bevelled ends for skived&roller burnished tubes. 
10. Standard export packing: In bundles tied with steel strips. Internal & external oil coating. Plastic caps on both ends. External packing by PVC bags and knit bags. 
11. Customized packing and marking can be provided upon request. 
12. H8 tolerance: 

ID range	Tolerance	ID range	Tolerance
18< d ≤30	+0/+0.033	180< d ≤250	+0/+0.072
30< d ≤50	+0/+0.039	250< d ≤300	+0/+0.081
50< d ≤80	+0/+0.046	300< d ≤315	+0/+0.081
80< d ≤120	+0/+0.054	315< d ≤400	+0/+0.089
120< d ≤180	+0/+0.063	400< d ≤500	+0/+0.097

13. Difference between honed tube and skived & roller burnished tube: In hydraulic cylinder industry, there are 2 solutions for bore treatment: Honing, and skiving&roller burnishing. Honing or skiving&roller burnishing leads to different internal surface image, but both ensure good roughness. 

 

Product Show:






Transportation and Package:

1.Black varnish painted or oil painted anti-corrosion oil ,2PE, 3PE on the surface

2.Plain,squire cut or bevelled end by caps

3.In hexagon or triangle bundle with steel strips

4.Marking: As per customer's requirment

Trade Terms:FOB/CIF/CFR

 Payment Terms:L/C,T/T, Western Union.

 Loading Port:XinGang TianJin, China

 Delivery: Within 15-20days after we receive deposit or L/C at sight



Our Company:

Tianjin Boer King Steel Co.,Ltd. is located in Shuang Gang industrial zone of Jinnan district ,Tianjin.we have been engaged in export of steel pipes for about ten years. Now, We sell 160,000 tons steel pipes per year, including the steel pipes for the high, medium and low pressure boilers, shipping, transporting liquid products, the petroleum cracking process, the fertilizer facilities, the structure ,the hollow sucker rod , oil well casing and drill pipe,galvanized steel pipe and some stainless steel. Our products are very popular in the overseas market.we enjoy the good reputation with high qulity and better service.


Warmly welcome customers home and abroad to visit our company and give us valuable suggestions. We would like to have long
 term cooperation with customers from all over the world on the basis of mutual prosperity and development!





Customers visits  and Exhibition:


Why choose us?
 
High Quality

We have established quality management system according to ISO9001:2008 and carry out the total quality management.

Competitive Price

We can offer you reasonble price as your requirement.

Fast Delivery

we have large stocks,and can do OEM very fast as your requirements.

Good Service

Timely reply! Perfect packing! Friendly atitude! Do our best to meet your demand!

Contact:

MS CINDY YANG
TIANJIN BOER KING STEEL PIPE CO.,LTD
ADD:NO.53 LIANDONG U VALLEY JINNAN DISTRICT ,TIANJIN CHINA

If you have any question, please feel free to contact me by the email or telephone!