TYPE P GLASS BEADS (BOROSILICATE)
Type P Glass Beads (borosilicate)
- Produced either in soda-lime glass or in high-quality borosilicate glass
- High chemical resistance
- Often used in chemical industry, in dosage pumps or ball bearings
Chemical Composition weight-%
|
SiO2 |
81.20 % |
|
B2O3 |
12.40 % |
|
Na2O |
2.93 % |
|
Sb2O3 |
< 0.01 % |
|
As2O3 |
< 0.01 % |
|
Others |
Chemical Composition weight-%
|
Hydrolytic class |
HGB 1 |
DIN ISO 719 |
|
Acidic class |
S 2 |
DIN 12116 |
|
Alcaline class |
A 1 |
DIN 695 |
|
Specific weight |
2.23 kg/ltr. |
DIN ISO 787-10 |
Grades and Tolerances ANSI/AFBMA - 10.1989
|
Grade |
Deviation from spherical form in micron |
Maximum surface roughness in micron |
|
200 |
5 |
0.2 |
|
100 |
2.5 |
0.125 |
|
Diameter *) |
Tolerance **) |
Roundness**) |
Stand. Surface |
Weight/1000 pcs |
Pieces / 1000 gr |
|
1,588 mm 1/16“ |
+/- 0,02 mm |
≤ 0,02 mm |
polished |
4,67 gr. |
213.867 |
|
2,500 mm |
+/- 0,02 mm |
≤ 0,02 mm |
polished |
18,24 gr. |
54.812 |
|
3,969 mm 5/32“ |
+/- 0,02 mm |
≤ 0,02 mm |
polished |
73,00 gr. |
13.698 |
|
4,762 mm 3/16“ |
+/- 0,02 mm |
≤ 0,02 mm |
polished |
126,09 gr. |
7.931 |
|
6,350 mm 1/4“ |
+/- 0,02 mm |
≤ 0,02 mm |
polished |
298,97 gr. |
3.345 |
|
7,938 mm 5/16“ |
+/- 0,02 mm |
≤ 0,02 mm |
polished |
584,03 gr. |
1.712 |
|
12,700 mm 1/2“ |
+/- 0,02 mm |
≤ 0,02 mm |
matt |
2.391,75 gr. |
418 |
|
19,050 mm 3/4“ |
+/- 0,02 mm |
≤ 0,02 mm |
matt |
8.072,15 gr. |
124 |
|
31,750mm 1 1/4“ |
+/- 0,02 mm |
≤ 0,02 mm |
matt |
37.371,08 gr |
27 |
