Cold-drawn cylinder tubes

Mill finish

+ C (BK = cold-finished/hard)

No heat treatment after cold drawing.

The inner surface is immediately suitable for use in cylinder applications.

Mechanical properties

E355

Re  >= 580 MPa

(St52-3)

Rm >= 630 MPa

 

A5 >= 10%

Surface quality

Exterior:

Smooth drawn in compliance with DIN EN 10305-2 (DIN 2393)

Interior:

Ra max. 0,8μ, (individual values permitted up to1μ)

Rmax < 9μ,

Tp 1μ > 50%

 


 

 

 

 

 

 

 

 

 

 

 

 

 

Wall thickness T

 

mm

2,0

2,5

3,0

4,0

5,0

6,0

6,35

 

 

 

 in

0,079

0,098

1,118

0,157

0,197

0,236

0,250

 

 Nominal dimension

Limit dimension

 Nominal dimension

Limit dimension

 

 

 

 

 

 

 

  25

+0,052

 H9  0,984

+0,0020

      

 

 30

 

 H9  1,181

 

      

 

 40

+0,062

 H9  1,575

+0,0024

      

 

 50

 

 H9  1,969

 

       
 60

+0,074

 H9  2,362

+0,0029

 

      
 70

 

 H9  2,755

 

 

      
 80

 

 H9  3,150

 

 

 

     
 90

+0,087

 H9  3,543

+0,0034

 

 

     
 100

 

 H9  3,937

 

 

 

     

 

 

External diameter tolerance by DIN EN 10305-2 (DIN 2393)

Further dimensions and materials on request