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

Click for Technical Details

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

Click for Sizes

*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

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