Guaranteed Quality round high borosilicate glass tube high temperature glass tubes
Product Description
product description
Coefficient,of mean linear themal expansion(20℃/300℃) | 3.3±0.1 ( 10-6K-1 ) |
Softening point | 820±10℃ |
Melting point | 1260±20℃ |
Transformation temperature | 525±15℃ |
Hydrolytic resistance at 98℃ | ISO719-HGB1 |
Hydrolytic resistance at 121℃ | ISO720-HGA1 |
Acid resistance class | ISO1776-1 |
Alkali resistance class | ISO695-A2 |
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