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　Alloy Copper Corrugate Tube
   
 

Technical Specification

The containuous corrugate spiral groove on the outer surface of copper tube, makes the inner crosee-section varies periodically.

Such tube has fairly small tube pressure drop.

Outside Diameter: 16mm-22mm
Nominal Wall Thickness: 0.5-2.0mm
Number of Thread: 3
Pitch: 5-10mm
Groove Depth: 0.6mm
Length: Max.11m
 
Technical Specification

Outside Diameter

Tolerances of Wall Thickness (±)

Average 0.D

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 (mm)

Tube Length (mm)

Tolerances

0.D＜25

0.D＞25

<600

O/+2

O/+3

600-1800

O/+3

O/+3

1800-4200

O/+6

O/+6

4200-1000

O/+10

O/+10
 
Mechanical Characteristic of Copper Tube

Temper

Tensile Strength (Mpa)

Elongation (%)

Hardness Hr15T

Grain Size (mm)

Hard

＞294

-

＞100

-

1/2 Hard

245-314

-

80-100

-

1/4 Hard

＞206

＞40

＜65

＜0.040

Annealed

＞206

＞40

＜60

0.025-0.060
 
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