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standard colorless quartz tube
Infomation
physics performance:
performance
SP-200
density
2.2×10
3
kg/m
3
hardness
550khn
100
tensile strength
4.7×10
7
Pa(n/m
2
)
pressure strength
>1.1×10
9
Pa
thermal expansivity20-300
5.5×10
-7
cm/cm
thermal conductivity(20)
1.4w/m
specific heat20
660J/kg
soften point
1683
annealing point
1215
size and tolerance
size
external diameter
wall thickness
length
max thickness
max ellipticity
max camber
<10
±0.15
±0.10
±0.5
0.10
0.15
2
10-15
±0.20
±0.10
±0.5
0.12
0.20
2
15-20
±0.25
±0.15
±0.5
0.13
0.25
2
20-30
±0.30
±0.15
±0.5
0.15
0.30
2
30-40
±0.40
±0.15
±0.5
0.15
0.40
2
>40
±0.50
±0.15
±0.5
0.15
0.50
2
chemical percent
Al
Fe
Ca
Mg
Ti
Mn
B
K
Na
Li
16
1.2
0.8
0.4
0.1
0.1
0.8
2.0
2.3
0.5