Physical Property物理特性 |
Pipe property | Unit | Value | Standard |
Heat conduction coefficient热传导系数 | Btu.in/(hr.ft2.℉) | 2.3 | HVTM |
w/m.℃ | 0.33 | HVTM |
Heat expansion coefficient热膨胀系数 | 10ˉ6in/in/℉ | 8.7 | ASTM D696 |
10ˉ6mm/mm/℃ | 15.7 | ASTM D696 |
Flow coefficient流量系数 | Hazen Williams | 150 | HVTM |
Absolute roughness绝对粗糙度 | 10ˉ6 in | 60 | HVTM |
10ˉ6 m | 1.5 | HVTM |
Density密度 | Ib/in3 | 0.073 | ASTM D792 |
g/cm3 | 1.93 | ASTM D792 |
Toroidal elastic modulus环向弹性系数 | Gpa | 22.8 | ASTM D2105 |
Axial elastic modulus轴向弹性系数 | Gpa | 13.8 | ASTM D2105 |
Hoop Poisson’s ratio环性泊松比 | - | 0.4 | ASTM D2105 |
Amine TG | ℃ | ≥145 | API |
Safety Coefficient( high pressure)安全系数(高压) | Mpa | 2 times of working pressure)工作压力的2倍 | API 15HR |
Safety Coefficient(low pressure)安全系数(低压) | Mpa | 3 times of working pressure)工作压力的3倍 | API 15LR |