|
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
|
product manual:
