Нейтральная труба из боросиликатного прозрачного

Цена:*

Количество:

Product Description

1. We are manufacturer, we have 8 set production lines, we are professional, efficient, honest and responsible.

2. Productivity: 60T per day.

3. Outside diameter: from 3mm to 315mm.

4. Wall thickness: from 1.0mm to 10mm.

5. Length: from 5mm to 2200mm. Normal length: 1000mm-1800mm.

6. Color: Clear or other colors

7. The high borosilicate 3.3 glass tube is used forlab equipment, optical, medical, daily glassware, solar energy, test tube, etc.

8. We can supply special dimensions according to request.

9. We have ISO9001, ISO14001 certificates.

10. MOQ of normal glass tube: 1T. MOQ of special glass tube: 3T.

11. Payment terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram.

12. Physical data of COE 3.3 borosilicate glass tube:

Physical data of COE 3.3 borosilicate glass tube
No.	Physics Performance	Numerical Value	Unit
1	Medium coefficient of linear expansion α_20/300acc.To DIN 52328	3.3 ± 0.1	10^-6K^-1
2	Transformation Temperature	525 ± 15	degree Celsius
3	Upper annealing temperature	560 ± 10	degree Celsius
4	Softening point	820 ± 10	degree Celsius
5	Working temperature	1260 ± 20	degree Celsius
6	Maximum short-time working temperature	500	degree Celsius
7	20 degree Celsius Density ρ	2.23 ± 0.02	g/cm³
8	Modulus of elasticity E	64	10³N/mm²
9	Poisson’s ratioμ	0.20	1
10	Thermal conductivityλw(20 degree Celsius -100 degree Celsius )	1.2	W/m²K
11	Temperature for the specific electrical resistance of 10⁸Ω·cm(DIN52326)t_{k 100}	250	degree Celsius
12	Stress-optical constant(DIN52314)K	4.0	10^-6mm²/N

13. Chemical data of COE 3.3 borosilicate glass tube:

Composition	SiO₂	B₂O₃	Na₂O + K₂O	Al₂O₃
approx.weight %	81	13	4	2

Description	Rate
Water resistance to ISO720	1
Water resistance to European Pharmacopoeia	1
Water resistance to USP23	1
Acid resistance Class(DIN12116)	1
Alkali resistance Class(ISO695)	2