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GLASTRA Glass beads as per DIN 8201

Glass beadsGLASTRA Glass beads are used as Fe-free abrasives of the highest quality, which are used as both cleansing abrasives and surface strain hardening abrasives.

By request, also available as glass breakage.



Technical Data

  

Grain geometry:
   round  
Deliverable granulations:
         
 
Appearance:
   glass clear  
0 bis
50 µ
     
40 bis
70 µ
Softening point:
   730°C  
70 bis
110 µ
(identical: 50 – 105)
     
90 bis
150 µ
Hardness:
   app. 47 HRC / 6 – 7 Mohs  
100 bis
200 µ
     
150 bis
250 µ
Specific weight:
   2,46 kg / dm³  
200 bis
300 µ
     
300 bis
400 µ
       
400 bis
800 µ
         

Chemical Average analysis:
SiO2
Al2O3
CaO
MgO
Fe2O3
   Na2O   K2O   SO1
Min.
70,0%
–
7,0%
–
–
  
12,0%
  
–
  
–
Max.
  
75,0%
  
2,5%
  
12,0%
  
5,0%
  
0,5%
  
15,0%
  
1,5%
  
0,5%
 
 
 
 
 
 
 
 

Batch Sizes:   25kg bags made of paper or BIG BAGS at 1'000 kg on Euro-palettes for every 1'000 kg, shrink-wrapped in foil.