Short Description

Model No.: GOST-12820-80-304-Welding-Neck-Flange-Raised-Face-6-Inch-PN16

China Welding Neck Flange Manufacturer www.pipelinedubai.com offers GOST 12820-80 304 Welding Neck Flange Raised Face, 6 Inch, PN16.

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Key Specifications / Features

Type: GOST Welding Neck Flange
Material: 304
Pressure: PN16 (1.6MPa)
Size: DN150 (6″)
Standard: GOST 12820-80
Ends: Raised Face

Chemical Composition and Mechanical Property for 304/304L

Steel Grade

Chemical Composition

Mechanical Performance

C(Max)

Si(Max)

Mn(Max)

P(Max)

S(Max)

Ni

Cr

N

Mo

Tensile Strength
(Min)

Yield Strength
(Min)

Mpa

Mpa

304

0.08

0.75

2.00

0.045

0.03

8.0–10.5

18.0–20.0

0.1

/

515

205

304L

0.03

0.75

2.00

0.045

0.03

8.0–12.0

18.0–20.0

0.1

/

485

170

2018118162524918658 - GOST 12820-80 304 Welding Neck Flange Raised Face 6 Inch PN16

GOST 12821-80 PN16 Welding Neck Flanges

Pressure PN =1,6 МPа (16 kgf/cm²)

Description

D, мм.

D1, мм.

d, мм.

Dm, мм

Dn, мм

d1, мм.

b, мм.

h4, мм.

Ot., Pcs.

Weight, kg.

Flange GOST 12821-80 1-15-16 ст.3 (20)

95

65

14

30

19

12

12

33

4

0,68

Flange GOST 12821-80 1-20-16 ст.3 (20)

105

75

38

26

18

36

0,87

Flange GOST 12821-80 1-25-16 ст.3 (20)

115

85

45

33

25

38

1,05

Flange GOST 12821-80 1-32-16 ст.3 (20)

135

100

18

55

39

31

13

40

1,54

Flange GOST 12821-80 1-40-16 ст.3 (20)

145

110

64

46

38

42

1,85

Flange GOST 12821-80 1-50-16 ст.3 (20)

160

125

76

58

49

45

2,28

Flange GOST 12821-80 1-65-16 ст.3 (20)

180

145

94

77

66

15

47

3,19

Flange GOST 12821-80 1-80-16 ст.3 (20)

195

160

110

90

78

17

50

4,21

Flange GOST 12821-80 1-100-16 ст.3 (20)

215

180

130

110

96

8

4,9

Flange GOST 12821-80 1-125-16 ст.3 (20)

245

210

156

135

121

19

57

6,75

Flange GOST 12821-80 1-150-16 ст.3 (20)

280

240

22

180

161

146

8,3

Flange GOST 12821-80 1-200-16 ст.3 (20)

335

295

240

222

202

21

58

12

11,79

Flange GOST 12821-80 1-250-16 ст.3 (20)

405

355

26

292

278

254

23

65

17,36

Flange GOST 12821-80 1-300-16 ст.3 (20)

460

410

346

330

303

24

66

22,76

Flange GOST 12821-80 1-350-16 ст.3 (20)

520

470

400

382

351

28

70

16

32,04

Flange GOST 12821-80 1-400-16 ст.3 (20)

580

525

30

450

432

398

32

75

43

Flange GOST 12821-80 1-500-16 ст.3 (20)

710

650

33

559

535

501

38

90

20

70,97

Flange GOST 12821-80 1-600-16 ст.3 (20)

840

770

39

660

636

602

41

99,3

Flange GOST 12821-80 1-800-16 ст.3 (20)

1020

950

850

826

792

45

95

24

130,57

Flange GOST 12821-80 1-1000-16 ст.3 (20)

1255 1170 45 1060 1028 992 49 110 28 203,39

Flange GOST 12821-80 1-1200-16 ст.3 (20)

1485 1390 52 1268 1228 1192 51 125 32 284,94

Conditional pass Dy

d1

b

h4

Dm

Dn

Weight, kg

With a connecting protrusion   

with a protrusion

with a hollow

with a spike

with a groove

10

8

12

33

26

15

0,59

0,60

0,58

0,59

0,58

15

12

30

19

0,68

0,68

0,65

0,67

0,66

20

18

36

28

26

0,87

0,87

0,82

0,85

0,84

25

25

38

45

33

1,05

1,05

0,99

1,03

1,02

32

31

13

40

55

39

1,54

1,54

1,48

1,50

1,50

40

38

42

64

46

1,85

1,81

1,77

1,77

1,81

50

49

45

76

58

2,28

2,24

2,16

2,17

2,23

65

66

15

47

94

77

3,19

3,17

3,05

3,06

3,14

80

78

17

50

110

90

4,21

4,15

4,04

4,06

4,17

100

96

130

110

4,90

4,80

4,65

4,72

4,78

125

121

19

57

156

135

6,75

6,76

6,47

6,55

6,66

150

146

180

161

8,30

8,28

7,88

7,96

8,08

-175

177

21

210

196

10,37

9,79

9,32

10,05

10,17

200

202

58

240

222

11,79

11,72

11,28

11,04

11,20

-225

226

65

268

248

14,12

14,48

13,55

13,60

13,70

250

254

23

292

278

17,36

15,00

14,30

16,67

16,86

300

303

24

66

346

330

22,76

22,65

20,83

21,60

22,10

350

351

28

70

400

382

32,04

32,00

29,43

30,60

33,10

400

398

32

75

450

432

43,00

42,64

41,10

41,00

41,70

-450

450

34

85

506

484

54,00

53,50

52,20

51,40

52,40

500

501

38

90

559

535

70,97

70,32

69,00

68,00

69,90

600

602

41

660

636

99,30

97,81

96,73

94,50

96,60

-700

692

43

95

750

726

105,90

105,97

102,00

100,70

101,10

800

792

45

850

826

130,57

118,79

115,00

124,80

127,6

-900

892

47

110

958

926

157,83

1000

992

49

1060

1028

203,39

1200

1192

51

125

1268

1228

284,94

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