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Seamless Steel Pipe
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Carbon Seamless Steel Pipe

Dimension of Butt welding ring in accordance with series A/B,HG20599-97

ND

D

PN0.6MPa(6bar)

PN1.0MPa(10bar)

PN1.6MPa(16bar)

PN2.5MPa(25bar)

DN

in

A SERIE

B SERIE

L

d

R

L

d

R

L

d

R

L

d

R

15

1/2

21.3

18

30

38

2

38

46

2

38

46

2

38

46

2

20

3/4

26.7

25

32

48

2

40

56

2

40

56

2

40

56

2

25

1

33.4

32

35

58

3

40

65

3

40

65

3

40

65

3

32

11/4

42.2

38

35

69

3

42

76

3

42

76

3

42

76

3

40

11/2

48.3

45

38

78

3

45

84

3

45

84

3

45

84

3

50

2

60.3

57

38

88

3

48

99

3

48

99

3

48

99

3

65

21/2

76.1

76

38

108

3

48

118

3

48

118

3

52

118

3

80

3

88.9

89

42

124

4

50

132

4

50

132

4

58

132

4

100

4

114.3

108

45

144

4

52

156

4

52

156

4

65

156

4

125

5

141.3

133

48

174

4

55

184

4

55

184

4

68

184

4

15

6

168.3

159

48

199

4

55

211

4

55

211

4

75

211

4

200

8

219.1

219

55

254

5

62

266

5

62

266

5

80

274

5

250

10

273.0

273

60

309

5

68

319

5

70

319

5

88

330

5

300

12

323.9

325

62

363

5

68

370

5

78

370

5

92

389

5

350

14

355.6

377

62

413

5

68

429

5

82

429

5

100

448

5

400

16

406.4

426

65

463

5

72

480

5

85

480

5

110

503

5

450

18

457.2

480

65

518

5

72

530

5

87

548

5

110

548

5

500

20

508.0

529

68

568

6

75

582

6

90

609

6

125

609

6

600

24

609.6

630

70

667

6

80

682

6

95

720

6

125

720

6

 



 

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