Tube outer diameter /mm

Wall thickness/ mm

Best frequency /kHz

20 ℃

800 ℃

1200 ℃

Non-magnetic steel

12. 7

1

51

85

92

2

28

47

50

3

twenty one

34

37

25.4

1

25

41

44

2

13

21

23

3

8.9

15

16

5

5.9

9. 8

11

50. The 8

1

12

20

22

2

6. 1

10. 1

11

3

4.2

6.9

7.5

5

2.6

4. 3

4.7

76.2

1

7.9

13.2

14.3

2

4

6.7

7.2

3

2.7

4.5

4.9

5

1.7

2. 8

3

102

1

5.9

9.9

10.6

2

3

5

5.4

3

2

3.4

3.6

5

1.2

2. 1

2.2

12.7

1.33

3.7

6. 3

0. 73

2

3.4

0. 54

1.5

2.5

Frequency /Hz

Diameter /mm

5

10

20

50

100

200

300

500

10000

20000

50

25

15

7

3

150

25

10

5

2.1

1

500

20

5

2.5

1.5

0.75

0.3

1000

10

4

1.3

0.7

0.4

0. 15

2400

10

3

1.5

0.6

0. 3

0. 13

4000

5

2

0.8

0.3

0. 18

0. 07

10000

5

1.8

0.7

0. 35

0. 13

0. 08

70000

2

0.6

0.21

0. 11

440000

0.6

0.2

0. 09