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DIN2391 BKW BKS GBK NBK Seamless Precision Cold Drawn Steel Tubes

Place of Origin: Zhejiang

Company Profile

Location: Ningbo, Zhejiang, China (Mainland)
Business Type: Manufacturer
Main Products: Precision Steel Tube, Welded Steel Tube, Seamless Steel Tube

Product Detail

Model No.: DIN 2391

Product Description

DIN2391 St35.0 St37.0 St44.0 St45St52.0 BKW BKS GBK NBK Seamless Precision Cold Drawn Steel Tubes

 

Standard: DIN2391 Seamless Cold Drawn/Rolling Steel Tubes


Applications: for Auto industry / for machinery use / Oil Cylinder Tube / Motorcyle shock absorber

     
Auto shock absorber innder cylinder / Telescopic Cylinders            

                            
Size range: O.D.:6-350mm     W.T.:1-50mm      L:max12000mm     

 

Materials:

The tubes are manufactured from electric steel or basic oxygenn stel, the melting and casting processes being at the discretion of the manufacturer.

The steel is cast as kiiled steel             

 

Apperance:

Tubes have a smooth internal and external surface with the cold working process

 

Tube ends:

Square cut, no burrs                   

Steel Grade and Chemical Compositions:

Steel Grade C Si Mn P S  
max max   max max  
ST35 0.17  0.35 ≥0.40 0.025 0.025  
ST45 0.21 0.35 ≥0.40 0.025 0.025  
ST52 0.22 0.35 ≥1.60 0.025 0.025  

 

Mechanical properties at room temperature
Steel Grade Minimum values for the delivery condition
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