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SAE4140 4130 Cold Rolled BKS Carbon Steel Tube
Oct 19, 2017

Honed Tubing: Our honed tubing is produced using our Suitable To Hone Drawn Over Mandrel (DOM) and Cold Drawn Seamless CDS. This carbon tube is ready to use for hydraulic cylinder applications without further ID processing. The honed process involves using abrasive polishing stones and abrasive paper to remove small amounts of material, to produce extremely precise ID dimensions and improved finishes.

can be widely used for hydraulic cylinder, hydraulic breaker, automobile parts, bike frame, racing car, elevator buffer and so on.

  • Made from 1026 or ST52.3 Drawn over mandrel and cold drawn seamless tubing.

  • stocked to plus side tolerances and also stocked to minus side tolerances.

  • Stocked Size Range: 1-1/2” – 14” Honed ID; 3/16” – 1” wall thickness

  • Stocked in 20’ random lengths

  • Cut to length sizes

  • Imperial and metric sizes

  • Suitable to hone sizes

  • 16 Max RMS ID Finish

  • We can process to your custom size

Delivery condition of carbon tube:

 

 

1.NBK for hydraulic cylinder pipe

 

after cold forming, eventually above phase transition point, in a protective atmosphere of annealing oxidation medium

 

2. GBK(+A) for carbon steel pipe

 

after cold forming, annealing in non oxidizing medium protective gas

 

3. BK(+C) for hydraulic cylinder tube

 

the final heat treatment after cold forming, therefore small steel pipe plastically, the plastically degree does not guarantee

 

4. BKW(+LC) for seamless pipe

 

after final heat treatment, a tiny cold drawing deformation, continue again when machining steel pipe allowed inside certain limits cold deformation(bending, flaring)

 

5. BKS(+SR) for hydraulic cylinder pipe

 

have a stress relief after cold forming, heat treatment, steel pipe can be carried out within a certain limit in the appropriate processing again

 

 

ID Tolerance of hydraulic tube:

ID size

ID deviation (mm)

H7

H8

H9

H10

30

+0.021

0

+0.033

0

+0.052

0

+0.084

0

>30~50

+0.025

0

+0.039

0

+0.062

0

+0.100

0

>50~80

+0.030

0

+0.046

0

+0.074

0

+0.120

0

>80~120

+0.035

0

+0.054

0

+0.087

0

+0.140

0

>120~180

+0.040

0

 

+0.063

0

+0.100

0

+0.160

0

>180~250

+0.046

0

+0.072

0

+0.115

0

+0.185

0

>250~315

+0.052

0

+0.081

0

+0.130

0

+0.210

0

>315~400

+0.0527

0

+0.089

0

+0.140

0

+0.230

0

 

CK45 Precision Hydraulic Cylinder Mechanical Properties Steel Pipe

 

 

 

   CK45 Precision Hydraulic Cylinder Mechanical Properties Steel Pipe

  CK45 Precision Hydraulic Cylinder Mechanical Properties Steel Pipe

 

FAQ


 1.Where is your factory of carbon tube?

Our factory is located in APEC Science &Technology Industrial park, Zhifu District,Yantai,Shandong,China

2.What material of carbon tube do you have?10#,20#,45#,25Mn,E355(Q345B,St52),27SiMn,etc.3.When can I get the quotation for hyrdaulic cylinder tube ? within 24 hours after we get your inquiry. If you are very urgent to get the price, please call us ortell us in your email so that we will regard your inquiry priority. 4. Can we get free samples of hydraulic cylinder tube ?Yes, of course. After price confirmation, you can require for samples to check our quality counter display. samples are free, you only pay for freight charge is ok.5. What is your terms of delivery and payment terms for hydraulic cylinder pipe?We accept EXW, FOB, CIF, etc; payment terms with L/C or T/T(30% deposit+70% balance against B/L copy)You can choose the one which is the most convenient for you.6. How about your delivery time of hydraulic cylinder tube?Usually 15 working days after order confirmed& getting T/T deposit or original L/C

 CK45 Precision Hydraulic Cylinder Mechanical Properties Steel Pipe