Technical Specification:
Twisting the copper tube into certain type with spiral grooves on the
outer surface. As to the cavity in the cross section of the spiral grooves,
this kind of tube can be twisted randomly and installed in narrow space.
Application:
The tube especially suitable for double pipe heat exchanger in units.
Technical Specification:
|
外径Outside Diameter
|
名义壁厚允许偏差Tolerances of Wall Thickness(±)
|
|
平均外径Average O.D
|
允许偏差Tolerances(±)
|
0.35
|
0.41
|
0.5
|
0.6
|
0.7
|
0.75
|
0.8
|
1.0
|
1.2
|
|
12.7
|
0.05
|
-
|
0.05
|
0.05
|
0.05
|
0.06
|
0.06
|
0.06
|
0.08
|
0.08
|
|
15.88
|
0.06
|
-
|
-
|
-
|
0.06
|
0.06
|
0.06
|
0.08
|
0.08
|
0.10
|
|
18
|
0.06
|
-
|
-
|
-
|
0.06
|
0.06
|
0.08
|
0.08
|
0.10
|
0.10
|
|
19.05
|
0.06
|
-
|
-
|
-
|
-
|
0.07
|
0.08
|
0.08
|
0.10
|
0.12
|
Length of Tolerances:
|
直管长度
Tube Length(mm)
|
允许偏差Tolerances
|
|
外径小于25(O.D＜25)
|
外径大于25(O.D＞25)
|
|
<600
|
0/+2
|
0/+3
|
|
600-1800
|
0/+3
|
0/+3
|
|
1800-4200
|
0/+6
|
0/+6
|
|
4200-10000
|
0/+10
|
0/+10
|
Mechanical Characteristic of Copper Tube:
|
状态
Temper
|
抗拉强度
Tensile Strength (Mpa)
|
延伸率
Elongation (%)
|
硬度
Hardness HR15T
|
晶粒度
Grain Size(mm)
|
|
硬Hard
|
>294
|
-
|
>100
|
-
|
|
半硬1/2Hard
|
245-314
|
-
|
80-100
|
-
|
|
轻拉1/4Hard
|
>206
|
>40
|
>65
|
<0.040
|
|
软Annealed
|
>206
|
>40
|
>60
|
0.015-0.060
|
|
