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Seamless steel pipes

Seamless steel pipes

Seamless pipes are made by rolling. According to the manufacturing technology used, rolled pipes can be divided into hot-rolled and cold-rolled pipes, hot-reduced and cold-reduced pipes, and according to the finish, pipes can be divided into plain structural pipes, threaded pipes, precision pipes, and boiler pipes.

Related standards:

Dimensional standard:

EN 10220; EN 10210-2; EN 216; GOST 8732; ASME B36; ASTM A53

Technical and delivery regulations:

ČSN 420250; DIN 1629/17121; DIN 1630; DIN EN 10025; EN 10216-1; DIN EN 10208 (VN 420256); EN 10224-5; EN 10297-1; GOST 8731; ASTM 519

Material for structural pipes:

ČSN - 11 353; 11 503; 11 523; DIN - St 37.0; St 52; St 52-3; EN - S235JRH; S355J2H; P235TR1-2; P265TR1-2; ASTM - A 106Gr; Grade A,B; GOST 10, 20

External diameter D

Wall thickness t (mm)

 

(mm)

x

x

x

x

x

x

x

x

x

x

x

21,3

x

x

x

x

x

22

x

x

x

x

x

25

x

x

x

x

x

28

x

x

x

x

x

31,8

x

x

x

x

x

x

x

33,7

x

x

35

x

x

x

x

x

x

38

x

x

x

x

x

x

x

42,4

x

44,5

x

x

x

x

x

x

x

x

51

x

x

x

x

x

x

x

x

x

57

x

x

x

x

x

x

x

x

60,3

x

x

x

x

x

x

x

x

x

x

70

x

x

x

x

x

x

x

x

x

76

x

x

x

x

x

x

x

x

x

76,1

x

x

x

x

82,5

x

x

x

x

x

x

x

x

89

x

x

x

x

x

x

x

x

x

102

x

x

x

x

x

x

x

x

108

x

x

x

x

x

x

x

x

114

x

127

x

x

x

x

x

x

x

133

x

x

x

x

x

x

x

140

x

152

x

x

x

x

x

x

159

x

x

x

x

x

x

168

x

x

x

x

x

x

178

x

194

x

x

x

x

219

x

x

x

245

x

x

x

273

x

x

324

x

x

377

x

Welded plain steel pipes

Welded plain steel pipes

Welded pipes are made from a tube strip by hot or cold forming. The strip is rolled to a pipe shape and welded. According to the manufacturing technology used, such pipes can be divided into plain, structural pipes and boiler pipes, threaded pipes, precision pipes and calibrated pipes.

Related standards:

Dimensional standard:

ČSN EN 10219–2, ČSN EN 10217–1, ČSN EN 10220, ČSN EN 10305–3, GOST 10 704

Technical and delivery regulations:

ČSN 42 0152, ČSN 42 0142, DIN 1615, DIN 1626, DIN 2394, GOST 10 705, EN 10219–1, ČSN EN 10217–1, ČSN EN 10296–1, ČSN EN 10305–3, BS 6363

Material for structural pipes:

ČSN - 11 353; 11 503; 11 523; DIN - St 37.0; St 52; St 52-3; EN - S235JRH; S355JOH; P235TR1-2; P265TR1-2; ASTM - A 106Gr; Grade A,B; GOST 10, 20

External diameter D

Wall thickness t (mm)

mm

1,8

2

2,3

2,5

2,6

2,9

3

3,2

3,5

3,6

4

4,5

5

5,6

17,2

x

x

x

x

x

x

x

x

21,3

x

x

x

x

x

x

x

x

22

x

x

26,9

x

x

x

x

x

x

x

x

x

x

28

x

x

31,8

x

x

x

x

x

x

x

x

x

x

33,7

x

x

x

x

x

x

x

x

x

x

x

38

x

x

x

x

x

x

x

x

x

x

x

x

42,4

x

x

x

x

x

x

x

x

x

x

x

44,5

x

x

x

x

x

x

x

x

x

x

x

x

48(48,3)

x

x

x

x

x

x

x

x

x

x

x

x

51

x

x

x

x

x

x

x

x

x

x

x

x

57

x

x

x

x

x

x

x

x

x

x

x

60 (60,3)

x

x

x

x

x

x

x

x

x

x

x

63,5

x

x

x

x

x

x

x

x

x

x

x

70

x

x

x

x

x

x

x

x

x

x

73

x

x

x

x

x

x

x

x

76 (76,1)

x

x

x

x

x

x

x

x

x

x

83 (82,5)

x

x

x

x

x

x

x

x

x

89

x

x

x

x

x

x

x

x

x

95

x

x

x

x

102 (101,6)

x

x

x

x

x

x

x

x

108

x

x

x

x

x

x

x

x

x

114 (114,3)

x

x

x

x

x

x

x

x

Welded, threaded, galvanised steel pipes

Welded, threaded, galvanised steel pipes

Seamless pipes are made by rolling. According to the manufacturing technology used, rolled pipes can be divided into hot-rolled and cold-rolled pipes, hot-reduced and cold-reduced pipes, and according to the finish, pipes can be divided into plain structural pipes, threaded pipes, precision pipes, and boiler pipes.

Related standards:

Dimensional standard:

EN 10220; EN 10210-2; EN 216; GOST 8732; ASME B36; ASTM A53

Technical and delivery regulations:

ČSN 420250; DIN 1629/17121; DIN 1630; DIN EN 10025; EN 10216-1; DIN EN 10208 (VN 420256); EN 10224-5; EN 10297-1; GOST 8731; ASTM 519

Material for structural pipes:

ČSN - 11 353; 11 503; 11 523; DIN - St 37.0; St 52; St 52-3; EN - S235JRH; S355JOH; P235TR1-2; P265TR1-2; ASTM - A 106Gr; Grade A,B; GOST 10, 20

Outer diameter diagonal

Nominal size DN

Outer diameter D mm

Outer diameter max. mm

Wall thickness min. mm

3/8"

10

17,5

17,5

16,7

1/2"

15

21,3

21,8

21

3/4"

20

26,9

27,3

26,5

1"

25

33,7

34,2

33,3

1 1/4"

32

42,4

42,9

42

1 1/2"

40

48,3

48,8

47

2"

50

60,3

60,8

59,7

2 1/2"

65

76,1

76,6

75,3

3"

80

88,9

89,5

88

4"

100

114,3

115

113,1

Welded precision steel pipes – calibrated

Welded precision steel pipes – calibrated

Seamless pipes are made by rolling. According to the manufacturing technology used, rolled pipes can be divided into hot-rolled and cold-rolled pipes, hot-reduced and cold-reduced pipes, and according to the finish, pipes can be divided into plain structural pipes, threaded pipes, precision pipes, and boiler pipes.

Related standards:

Dimensional standard:

EN 10220; EN 10210-2; EN 216; GOST 8732; ASME B36; ASTM A53

Technical and delivery regulations:

ČSN 420250; DIN 1629/17121; DIN 1630; DIN EN 10025; EN 10216-1; DIN EN 10208 (VN 420256); EN 10224-5; EN 10297-1; GOST 8731; ASTM 519

Material for structural pipes:

ČSN - 11 353; 11 503; 11 523; DIN - St 37.0; St 52; St 52-3; EN - S235JRH; S355JOH; P235TR1-2; P265TR1-2; ASTM - A 106Gr; Grade A,B; GOST 10, 20

External diameter D (mm)

Wall thickness (mm)

0,8

1

1,2

1,5

2

3

3,5

12

x

13

x

14

x

x

15

x

x

x

x

16

x

x

x

x

x

17

x

x

x

18

x

x

x

x

19

x

x

x

x

20

x

x

x

x

21

x

x

x

x

22

x

x

x

x

23

x

x

x

x

24

x

x

x

x

25

x

x

x

x

26

x

x

x

x

27

x

x

x

28

x

x

x

x

29

x

x

x

30

x

x

x

x

x

31

x

x

x

x

32

x

x

x

x

x

33

x

x

x

x

x

34

x

x

x

x

35

x

x

x

x

36

x

x

x

x

x

37

x

x

x

x

x

38

x

x

x

x

40

x

x

x

x

41

x

x

x

x

42

x

x

x

x

x

43

x

x

x

x

x

45

x

x

x

46

x

x

x

x

48

x

x

x

49

x

x

x

x

50

x

x

x

x

51

x

52

x

x

x

55

x

x

x

56

57

x

x

x

58

x

x

x

60

x

x

x

x

61

x

x

x

65

x

x

x

66

x

x

x

x

67

x

x

x

70

x

x

x

x

72

x

x

x

x

73

x

x

x

x

75

x

x

x

80

x

x

x

83

x

x

85

x

x

89

x

x

90

x

x

92

x

x

95

x

x

98

x

x

x

100

x

x

104

x

110

x

115