EN10305 Carbon Steel Seamless Tube

The reasons for EN10305 Carbon Steel Seamless Tube commonly used in hydraulic systems
Presently,Tubes to be used in the hydraulic system are stainless steel pipe,the ordinary carbon seamless steel pipe and EN10305 Carbon Steel Seamless Tube.
Stainless steel seamless tube has excellent mechanical properties,but due to their high cost and low precision,it has not been widely used.
Although ordinary seamless steel tube are widely used,its poor mechanical properties,low accuracy,it has to go through the series of welding,test equipment,pickling,alkaline cleaning,washing,long string of oil,leak testing, process complex,time-consuming unreliable material fee before using,and it has not been able to completely remove the residue in the tube,so it become a big hidden problem in the entire hydraulic system usage.
Tip: ordinary seamless steel tube used in hydraulic system become a high input and high cost job,thus it obviouly increase the cost for a entreprise.
With respect to these two kinds of steel pipe,EN10305 Carbon Steel Seamless Tube has the following advanatages
※ no oxide layer in the inside and outside steel tube,it can be directly used in the hydraulic system
※ withstand high pressure without leakage
※ high-precision
※ high cleanning
※ cold formed without deformation
※ no cracks in flaring and flattening
Comparison:
Use ordinary steel tube process:
※ welding: has welding slag and oxide layer,it may leak
※ pickling: waste of material,time-consuming and dangerous
※ alkaline cleaning: waste of material,time-consuming
※ washing: a waste of resources
Conclusion: The entire process is complicated and long working hours

Outer Diameter O.D.:16mm-273mm
Wall Thickness W.T.:1mm-25mm
Length L:3000mm-12000mm

Technical Of EN10305 Carbon Steel Seamless Tube

Steel grade Minimum values for the delivery condition

Steel 

name

Steel   

number

+ C + LC + SR + A + N

Rm 

Mpa

A%

Rm  

Mpa

A%

Rm   

Mpa

ReH  

 Mpa

A%

ReH

 Mpa

A%

Rm  

Mpa

ReH  

 Mpa

A%    
E215 1.0212 430 8 380 12 380 280 16 280 30 290-430 215 30
E235 1.0308 480 6 420 10 420 350 16 315 25 340-480 235 25
E355 1.058 640 4 580 7 580 450 10 450 22 490-630 355 22

 

Steel grade Chemical Compoents(%)
Steel name Steel number C max Si max Mn P max S max
E215 1.0212 0.1 0.05 0.7 0.025 0.025
E235 1.0308 0.17 0.35 1.2 0.025 0.025
E355 1.058 0.22 0.55 1.6 0.025 0.025

 


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