STEEL EN 10305-1 E355+N/+SR OUTSIDE CHROME PLATED TUBES IN TOLERANCE f7

STANDARD RANGE OF SIZES

Suitable for using on oil hydrodynamics and pneumatic machineries where the weight containment is important. Special oil hydrodynamics, perforated stems for oil and air return, bearing columns for elevators.

Diameter Thickness
2
mm		 2,5
mm		 3
mm		 3,5
mm		 4
mm		 5
mm		 6
mm		 7,5
mm		 8
mm		 10
mm		 12,5
mm		 15
mm
Ø 12 mm                    
Ø 15 mm                      
Ø 16 mm                  
Ø 18 mm                      
Ø 20 mm                  
Ø 22 mm                      
Ø 25 mm            
Ø 28 mm                    
Ø 30 mm            
Ø 32 mm                    
Ø 35 mm                
Ø 40 mm             si   si    
Ø 45 mm           si   si   si    
Ø 50 mm           si   si   si    
Ø 55 mm           si   si   si si  
Ø 60 mm           si   si   si    
Ø 63 mm               si   si    
Ø 65 mm           si   si   si    
Ø 70 mm           si si si   si si si
Ø 75 mm           si   si   si    
Ø 80 mm               si   si   si
Ø 85 mm               si   si    
Ø 90 mm               si   si   si
Ø 100 mm                   si   si
Ø 110 mm                   si    
Ø 120 mm                   si    
Ø 125 mm                   si    

TECHNICAL CHARACTERISTICS

Thickness of chrome layer:
20 ± 5 µm until size Ø 18mm
25 ± 5 µm over size Ø 18mm

Max. roughness of chrome layer:
Ra = 0,25 µm

Hardness of chrome layer:

HRC = 65 / 68

Standard lengths:

from Ø 12 x 2 to Ø 22 x 3: mm. 4.000 / 5.500
from Ø 25 x 3 to Ø 120 x 10: mm. 5.500 / 6.600

PRODUCTION ON DEMAND

Double chrome layer, different chrome thickness and tolerances, out of standard sizes on demand