Seamless steel tube theoretical weight

Seamless steel tube theory weight seamless steel tube theoretical weight

Outer diameter mm

Wall thickness (mm)

2.5

3

3.5

4

4.5

5

5.5

6

6.5

7

7.5

8

8.5

9

9.5

10

Theoretical weight (kg/m)

32

1.82

2.15

2.46

2.76

3.05

3.33

3.59

3.85

4.09

4.32

4.53

4.74

-

-

-

-

38

2.19

2.59

2.98

3.35

3.72

4.07

4.41

4.74

5.05

5.35

5.64

5.92

-

-

-

-

42

2.44

2.89

3.35

3.75

4.16

4.56

4.95

5.33

5.69

6.04

6.38

6.71

7.02

7.32

7.6

7.88

45

2.62

3.11

3.58

4.04

4.49

4.93

5.36

5.77

6.17

6.56

6.94

7.30

7.65

7.99

8.32

8.63

50

2.93

3.48

4.01

4.54

5.05

5.55

6.04

6.51

6.97

7.42

7.86

8.29

8.70

9.10

9.49

9.86

54

-

3.77

4.36

4.93

5.49

6.04

6.58

7.10

7.61

8.11

8.6

9.08

9.54

9.99

10.43

10.85

57

-

4.00

4.62

5.23

5.38

6.41

6.99

7.55

8.10

8.63

9.16

9.67

10.17

10.65

11.13

11.59

60

-

4.22

4.88

5.52

6.16

6.78

7.39

7.99

8.58

9.15

9.71

10.26

10.8

11.32

11.83

12.33

63.5

-

4.48

5.18

5.87

6.55

7.21

7.87

8.51

9.14

9.75

10.36

10.95

11.53

12.1

12.65

13.19

68

-

4.81

5.57

6.31

7.05

7.77

8.48

9.17

9.86

10.53

11.19

11.84

12.47

13.10

13.71

14.3

70

-

4.96

5.75

6.51

7.27

8.01

8.75

9.47

10.18

10.88

11.56

12.23

12.89

13.54

14.17

14..8

73

-

5.18

6.0

6.81

7.60

8.38

9.16

9.91

10.66

11.39

12.11

12.82

13.52

14.21

14.88

15.54

76

-

5.40

6.26

7.10

7.93

8.75

9.5

10.36

11.14

11.91

12.67

13.42

14.15

14.37

15.58

16.28

83

-

-

6.86

7.79

8.71

9.62

10.51

11.39

12.26

13.12

13.96

14.8

15.62

16.42

17.22

18.00

89

-

-

7.38

8.38

9.38

10.36

11.33

12.28

13.22

14.16

15.07

15.98

16.78

17.76

18.63

19.48

95

-

-

7.9

8.98

10.04

11.10

12.14

13.17

14.19

15.19

16.18

17.16

18.13

19.09

20.03

20.96

102

-

-

8.05

9.67

10.82

11.96

13.09

14.21

15.31

16.40

17.48

18.55

19.6

20.64

21.67

22.69

108

-

-

-

10.26

11.49

12.70

13.90

15.09

16.27

17.44

18.59

19.73

20.86

21.97

23.08

24.17

114

-

-

-

10.85

12.15

13.44

14.72

15.98

17.23

18.47

19.7

20.91

22.12

23.31

24.48

25.65

121

-

-

-

11.54

12.93

14.30

15.67

17.02

18.35

19.68

20.99

22.29

23.58

24.86

26.12

27.37

127

-

-

-

12.13

13..59

15.04

16.48

17.90

19.32

20.72

22.1

23.48

24.84

26.19

27.53

28.85

133

-

-

-

12.73

14.26

15.78

17.29

18.79

20.28

21.75

23.21

24.66

26.1

27.52

28.93

30.33

140

-

-

-

-

15.04

16.65

18.24

19.83

21.4

22.96

24.51

26.04

27.57

29.08

30.57

32.66

146

-

-

-

-

15.7

17.39

19.06

20.72

22.36

24.0

25.62

27.23

28.82

30.41

31.98

33.54

152

-

-

-

-

16.37

18.13

18.87

21.6

23.32

25.03

26.73

28.41

30.08

31.74

33.39

35.02

159

-

-

-

-

17.15

18.99

20.82

22.64

24.45

26.24

28.02

29.79

31.55

33.29

35.03

36.75

168

-

-

-

-

-

20.1

22.04

23.97

25.89

27.79

29.69

31.57

33.43

35.29

37.13

38.97

180

-

-

-

-

-

21.59

23.7

25.75

27.7

29.87

31.91

33.93

35.95

37.95

39.95

41.92

194

-

-

-

-

-

23.31

25.6

27.82

30.0

32.28

34.5

36.7

38.89

41.06

43.23

45.38

203

-

-

-

-

-

-

-

29.14

31.5

33.83

36.16

38.47

40.77

43.06

45.33

47.59

219

-

-

-

-

-

-

-

31.52

34.06

36.6

39.12

41.63

44.12

46.61

49.08

51.45

245

-

-

-

-

-

-

-

-

38.23

41.09

43.85

46.76

49.56

52.38

55.17

57.95

273

-

-

-

-

-

-

-

-

42.64

45.92

49.1

52.28

55.45

58.6

61.73

64.86

299

-

-

-

-

-

-

-

-

-

-

53.91

57.41

60.89

64.37

67.83

71.27

325

-

-

-

-

-

-

-

-

-

-

58.74

62.54

66.35

70.14

73.92

77.68

351

-

-

-

-

-

-

-

-

-

-

-

67.67

71.8

75.91

80.01

84.1

377

-

-

-

-

-

-

-

-

-

-

-

-

-

81.68

86.1

90.51

Note: The theoretical weight of the steel pipe (density is 7.85) is calculated according to the nominal size. The calculation formula is P=0.02466*S(DS), where: D is the nominal outer diameter (mm) of the steel pipe; S is the nominal wall thickness of the steel pipe. (mm).
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