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| SIMAX™ tubes and rods |
SIMAX™ borosilicate glass is an equivalent member with internationally defined and throughout the world acknowledged group of borosilicate technical glassware of the class 3.3 conforming to ISO 3585 and DIN ISO 3585 and it is completely compatible with other ones conforming present standard.
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Physical properties of SIMAX |
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| Coefficient of mean linear thermal expansion by ISO 7991, DIN 52 328 method | a (20¡C, 300¡C) |
K-1 |
3,3x10-6 |
| Specific gravity | a 20¡C |
g.cm-3 |
2,23 |
| Transformation temperature tg by ISO 7884-7, DIN 52 324 method | h =1013,2dPa.s |
¡C |
540 |
| Annealing point by ISO 7884-7, E DIN 52 312, Part 7 method | h =1014,7dPa.s |
¡C |
560 |
| Softening point by ISO 7884-6, DIN 52 312,part 6 method | h =107,6dPa.s |
¡C |
825 |
| Max. recommended operation temperature | ¡C |
500 |
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Time schedule of heating and cooling |
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heating |
cooling |
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| Range of temperature | 20-550 ¡C |
550¡C |
550-490¡C |
490-440¡C |
440-40¡C |
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| max. wall thickness | ¡C.min-1 |
¡C.min-1 |
¡C.min-1 |
¡C.min-1 |
¡C.min-1 |
|
3 mm |
140 |
5 |
14 |
28 |
140 |
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6 mm |
30 |
10 |
3 |
6 |
30 |
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9 mm |
15 |
18 |
1,5 |
3 |
15 |
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12 mm |
8 |
30 |
0,6 |
1,6 |
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| Resistance against sudden temperature changes | |
| Wall thickness | Sudden changes ¡C |
| 1mm | 303¡C |
| 3mm | 175¡C |
| 6mm | 124¡C |
| 10mm | 96¡C |
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