Soft Copper Tube Coil Size

Actual Copper Tube Size
Outside Diameter x Wall Thickness

Weight
(kg/m)

Safe Working Pressure (kPa)

metric (mm)

imperial (inches)

50ºC

75ºC

6.35 x 0.56

1/4" x 24swg

0.091

7,069

5,862

6.35 x 0.61

1/4" x 23swg

0.098

7,760

6,435

6.35 x 0.71

1/4" x 22swg

0.113

9,175

7,608

6.35 x 0.81

1/4" x 21swg

0.126

10,635

8,819

9.52 x 0.56

3/8" x 24swg

0.141

4,584

3,801

9.52 x 0.61

3/8" x 23swg

0.153

5,018

4,161

9.52 x 0.71

3/8" x 22swg

0.176

5,900

4,893

9.52 x 0.81

3/8" x 21swg

0.198

6,800

5,639

12.70 x 0.56

1/2" x 24swg

0.191

3,389

2,810

12.70 x 0.61

1/2" x 23swg

0.207

3,705

3,072

12.70 x 0.71

1/2" x 22swg

0.239

4,344

3,603

12.70 x 0.81

1/2" x 21swg

0.271

4,994

4,141

15.88 x 0.56

5/8" x 24swg

0.241

2,688

2,229

15.88 x 0.61

5/8" x 23swg

0.262

2,936

2,435

15.88 x 0.71

5/8" x 22swg

0.303

3,438

2,851

15.88 x 0.81

5/8" x 21swg

0.343

3,945

3,270

15.88 x 0.91

5/8" x 20swg

0.383

4,459

3,698

15.88 x 1.02

5/8" x 19swg

0.426

5,031

4,172

19.05 x 0.56

3/4" x 24swg

0.291

2,228

1,848

19.05 x 0.71

3/4" x 22swg

0.336

2,846

2,360

19.05 x 0.91

3/4" x 20swg

0.464

3,684

3,055

19.05 x 1.14

3/4" x 0.045"

0.574

4,668

3,871

22.22 x 0.91

7/8" x 20swg

0.545

3,138

2,602

22.22 x 1.14

7/8" x 0.045"

0.675

3,970

3,292

22.22 x 1.40

7/8" x 0.055"

0.819

4,929

4,088