Inner-Grooved Tubes

O.D.

Bottom Wall Thickness Tw

Fin Groove Depth Hf

(inch)

(mm)

(inch)

(mm)

(inch)

(mm)

0.1575

4

0.008-0.012

0.020-0.030

0.004-0.006

0.10-0.15

0.1875

4.76

0.008-0.014

0.020-0.035

0.004-0.006

0.10-0.15

0.197

5

0.008-0.014

0.020-0.035

0.004-0.006

0.10-0.15

0.2363

6

0.008-0.014

0.020-0.035

0.004-0.008

0.10-0.20

0.25

6.35

0.008-0.014

0.020-0.035

0.004-0.008

0.10-0.20

0.275

7

0.010-0.016

0.020-0.41

0.004-0.010

0.10-0.25

0.3125

7.94

0.010-0.016

0.020-0.41

0.004-0.010

0.10-0.25

0.375

9.52

0.010-0.016

0.020-0.46

0.004-0.012

0.10-0.30