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glass beads data sheet

Author：xiaoyuer Date：2010-11-1 20:25:36
Glass Beads Data Sheet

                                                                           Chemical Analysis

 

Inspection Items

Technical  Specifications

Appearance


Clear , transparent and round spheres

Density(G/CBM)

2.45—2.7g/cm3

Index  of  Rrefraction

1.5—1.64

soften point

710-730℃

Hardness

DPH 50g load - 537 kg/m2(Rockwell 48-50C)

Mohs - 5.5-7

Spherical beads

〉=85%

chemical composition

SiO2     72.00 – 73.00 %

Na2O     13.30 – 14.30%

K2O      0.20 – 0.60%

CaO      7.20 – 9.20%

MgO      3.50 – 4.00%

Fe2O3    0.08 – 0.11%

Al2O3    0.80 – 2.00%

SO3      0.20 – 0.30%