尺寸公差Dimensional Tolerance
|
外径范围
Range of OD |
壁厚
WT |
偏壁度
Siding |
椭圆度
Out of Round |
弯曲度
Bow/1220mm |
|
5.0±0.08 |
1.0±0.06 |
10% |
1.5% |
2.5% |
|
12.0±0.10 |
1.0±0.10 |
10% |
1.5% |
2.5% |
|
15.0±0.12 |
1.0±0.12 |
15% |
1.5% |
2.5% |
|
17.0±0.15 |
1.0±0.15 |
15% |
1.5% |
2.5% |
|
18.5±0.15 |
1.0±0.15 |
15% |
1.5% |
2.5% |
|
19.0±0.20 |
1.0±0.15 |
15% |
1.5% |
2.5% |
|
25.0±0.30 |
2.5±0.20 |
15% |
1.5% |
2.5% |
化学成份 Chemical composition 单位：unit : ppm
|
铝
Al |
铁
Fe |
钾
K |
钠
Na |
锂
Li |
钙
Ca |
镁
Mg |
铜
Cu |
锰
Mn |
铅
Pb |
硼
B |
铬
Cr |
羟基
OH |
|
25 |
1.5 |
2.5 |
2.5 |
0.6 |
2.3 |
0.5 |
0.1 |
0.5 |
0.01 |
0.2 |
0.1 |
<10 |
物理性能：Physical Properties
|
密度 Density 20℃ kg*m-3(×103) |
2.2 |
|
热膨胀系数 Coefficient of expansion 25-300℃ ℃-1(×10-6) |
0.56 |
|
软化点 Softening point（℃） |
1630 |
|
退火点 Annealing point（℃） |
1180 |
|
变形点 Strain point(℃) |
1070 |
|
杨氏模量 Youngs modulus(Pa) |
7.3×105 |
光在1.0mm厚处的透过率 Spectral Transmission at 1.0mm Thickness
|
Nm |
185 |
<220 |
230-280 |
550 |
590 |
780 |
|
% |
0 |
0 |
≥85 |
≥90 |
≥92 |
≥92 |