Types of Flanges Standards Products

Bs 4504 Flanges Dimensions and Standard

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Specification

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API 6A Weld Neck And Blind Flange

BS 4504 PN16 Flange, BS 4504 Flange Dimensions, BS4504 Forged Flanges, BS 4504 PN10 Flanges, BS 4504 PN6 Flange Dimensions

BS 4504 Flange Weight, BS 4504 PN40 Flange, Flanges as Per BS 4504, Flange BS4504 PN16, BS 4504 Material.

Detailed Information

Prashaant Steel & Alloys is a well-known manufacturer and supplier of BS 4504 Flanges. BS 4504 Flanges have a range of applications in rugged environments, including Seawater. Other cast stainless steel fittings, such as SS 316 and SS 316L Flanges, have reduced total corrosion resistance than BS 4504 Flanges, which are made of a mixture of chromium and molybdenum. The excellent welding properties of theBS 4504 Flanges resist carbide precipitation during the welding process. BS 4504 Flanges is the standard for marine grade stainless steel. Prashaant Steel & Alloys is known for manufacturing high-quality goods that match our customers’ needs, so our products go through a series of quality checks to ensure that only high-quality outputs are made.

Bs 4504 Flanges are circular flanges that are made up of steel and grey or malleable cast iron. The size of the flange ranges from DN 15 to DN2000 and the types differ as weld neck flanges, threaded flanges, slip on flanges, plate flanges, blind flanges and so on. The Bs 4504 Pn16 Flanges have low pressure capacities according to pressure number PN16. There are flanges ranging from PN6 to PN64. These flanges can be either forged or stamped during manufacture. The material grades used for the making of the BS 4504 Pipe Flanges vary according to ASTM A182.

The materials can be A240 F304, 304L, 304H, 316 and so on up to 904L. The different application types require different materials for the making of the Bs 4504 Pn 10 Flanges and other pressure numbers. There are duplex and super duplex grade flanges as well as carbon steel flanges. The carbon steel can also be low temperature carbon steel. The Bs 4504 Forged Flange is derived from one piece of the raw material so that it is stronger. For high strength, high temperature and high pressure applications, the high alloy steels are used. The copper alloys and nickel alloy flanges are also available in this range. 

Specification of Bs 4504 Flanges

Size Chart

1/2″ (15 NB) to 48″ (1200NB)

Pressure Rating ANSI

Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS

Pressure Calculation in DIN

6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64

BS 4504 Flange Standards

ANSI/ASME B16.5, B16.47 Series B & B, B16.48, BS4504, BS 4504, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092

JIS

5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K

UNI

6Bar 10Bar 16Bar 25Bar 40Bar

EN

6Bar 10Bar 16Bar 25Bar 40Bar

Coating

Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized

Most common types of BS 4504 Flange

Forged / Threaded / Screwed / Plate

Test Certificates

EN 10204/3.1B

Raw Materials Certificate

100% Radiography Test Report

Third Party Inspection Report, etc

Production technique

  • Forged, Heat treated and machined

Connect Type/ Flange Face Type

Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, , Groove

Special design

As per your drawing

AS, ANSI, BS, DIN and JIS

15 NB (1/2″) to 200 NB (8″)

Equal and Reducing Configurations

Test

Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector

Equipment

Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc

BS 4504 Flange Uses & application

  • Heavy oil refineries.
  • Bitumen upgraders.
  • Nuclear power (mostly seamless).
  • Petrochemicals and acids.

Bs 4504 Pn 16 Flange Dimensions

Nom. Size

Flange

Raised Face

Boss

Drilling

 

Bolting

Neck

Bore Diameter

DN

A

C

C1

C2

D

D1

G

X

N

No.

I

J

 

M

F

E

R

T

B

10

90

14

14

14

20

35

40

2

30

4

14

60

M12

28

17.2

6

3

1.8

18.0

15

95

14

14

14

20

35

45

2

35

4

14

65

M12

32

21.3

6

3

2.0

22.0

20

105

16

16

16

24

38

58

2

45

4

14

75

M12

39

26.9

6

4

2.3

27.5

25

115

16

16

16

24

38

68

2

52

4

14

85

M12

46

33.7

6

4

2.6

34.5

32

140

16

18

16

26

40

78

2

60

4

18

100

M16

56

42.4

6

5

2.6

43.5

40

150

16

18

16

26

42

88

3

70

4

18

110

M16

64

48.3

7

5

2.6

49.5

50

165

18

20

18

28

45

102

3

84

4

18

125

M16

74

60.3

8

5

2.9

61.5

65

185

18

20

18

32

45

122

3

104

4 / 8

18

145

M16

92

76.1

10

6

2.9

77.5

80

200

20

20

20

34

50

138

3

118

8

18

160

M16

110

88.9

10

6

3.2

90.5

100

220

20

22

20

40

52

162

3

140

8

18

180

M16

130

114.3

12

6

3.6

116.0

125 *

250

22

22

22

44

55

188

3

168

8

18

210

M16

158

139.7

12

6

4.0

141.5

150

285

22

24

22

44

55

212

3

195

8

22

240

M20

184

168.3

12

8

4.5

170.5

200

340

24

26

24

44

62

268

3

246

12

22

295

M20

234

219.1

16

8

5.6

221.5

250

405

26

29

26

46

70

320

3

298

12

26

355

M24

288

273.0

16

10

6.3

276.5

300

460

28

32

28

46

78

378

4

350

12

26

410

M24

342

323.9

16

10

7.1

327.6

350

520

30

35

30

57

82

438

4

400

16

26

470

M24

390

355.6

16

10

8.0

359.0

400

580

32

38

32

63

85

490

4

456

16

30

525

M27

444

406.4

16

10

8.0

411.0

450

640

34

42

36

63

87

550

4

502

20

30

585

M27

490

457.0

16

12

8.0

462.0

500

715

34

46

36

73

90

610

4

559

20

33

650

M30

546

508.0

16

12

8.0

513.5

600

840

36

52

44

83

95

725

5

658

20

36

770

M33

650

610.0

18

12

8.8

616.5

700

910

36

60

48

83

100

795

5

760

24

36

840

M33

750

711.0

18

12

8.6

800

1025

38

68

52

90

105

900

5

864

24

39

950

M36

848

813.0

20

12

10.0

900

1125

40

76

58

94

110

1000

5

968

28

39

1050

M36

948

914.0

20

12

10.0

1000

1255

42

84

64

100

120

1115

5

1072

28

42

1170

M39

1056

1016.0

22

12

10.0

1200

1485

48

98

76

130

1330

5

32

48

1390

M45

1260

1220.0

30

12

12.5

1400

1685

52

145

1530

5

36

48

1590

M45

1465

1420.0

30

12

14.2

1600

1930

58

160

1750

5

40

56

1820

M52

1668

1620.0

35

12

16.0

1800

2130

62

170

1950

5

44

56

2020

M52

1870

1820.0

35

15

17.5

2000

2435

66

190

2150

5

48

62

2230

M56

2072

2020.0

40

15

20.0

Bs 4504 Pn 10 Flange Dimensions

Nom. Size

Flange

Raised Face

Boss

Drilling

 

Bolting

Neck

Bore Diameter

DN

A

C

C1

C2

D

D1

G

X

N

No.

I

J

M

F

E

R

T

B

10

90

14

14

14

20

35

40

2

30

4

14

60

M12

28

17.2

6

3

1.8

18.0

15

95

14

14

14

20

35

45

2

35

4

14

65

M12

32

21.3

6

3

2.0

22.0

20

105

16

16

16

24

38

58

2

45

4

14

75

M12

39

26.9

6

4

2.3

27.5

25

115

16

16

16

24

38

68

2

52

4

14

85

M12

46

33.7

6

4

2.6

34.5

32

140

16

18

16

26

40

78

2

60

4

18

100

M16

56

42.4

6

5

2.6

43.5

40

150

16

18

16

26

42

88

3

70

4

18

110

M16

64

48.3

7

5

2.6

49.5

50

165

18

20

18

28

45

102

3

84

4

18

125

M16

74

60.3

8

5

2.9

61.5

65

185

18

20

18

32

45

122

3

104

4 / 8

18

145

M16

92

76.1

10

6

2.9

77.5

80

200

20

20

20

34

50

138

3

118

8

18

160

M16

110

88.9

10

6

3.2

90.5

100

220

20

22

20

40

52

162

3

140

8

18

180

M16

130

114.3

12

6

3.6

116.0

125 *

250

22

22

22

44

55

188

3

168

8

18

210

M16

158

139.7

12

6

4.0

141.5

150

285

22

24

22

44

55

212

3

195

8

22

240

M20

184

168.3

12

8

4.5

170.5

200

340

24

24

24

44

62

268

3

246

8

22

295

M20

234

219.1

16

8

5.6

221.5

250

395

26

26

26

46

68

320

3

298

12

22

350

M20

288

273.0

16

10

6.3

276.5

300

445

26

28

26

46

68

370

4

350

12

22

400

M20

342

323.9

16

10

7.1

327.6

350

505

26

28

26

53

68

430

4

400

16

22

460

M20

390

355.6

16

10

7.1

359.0

400

565

26

32

26

57

72

482

4

456

16

26

515

M24

440

406.4

16

10

7.1

411.0

450

615

28

36

28

63

72

532

4

502

20

26

565

M24

488

457.0

16

12

7.1

462.0

500

670

28

38

28

67

75

585

4

559

20

26

620

M24

540

508.0

16

12

7.1

513.5

600

780

28

42

34

75

80

685

5

658

20

30

725

M27

640

610.0

18

12

7.1

616.5

700

895

30

38

80

800

5

24

30

840

M27

746

711.0

18

12

8.0

800

1015

32

42

90

905

5

24

33

950

M30

848

813.0

18

12

8.0

900

1115

34

46

95

1005

5

28

33

1050

M30

948

914.0

20

12

10.0

1000

1230

34

52

95

1110

5

28

36

1160

M33

1050

1016.0

20

12

10.0

1200

1455

38

60

115

1330

5

32

39

1380

M36

1256

1220.0

25

12

11.0

1400

1675

42

120

1535

5

36

42

1590

M39

1460

1420.0

25

12

12.0

1600

1915

46

130

1760

5

40

48

1820

M45

1666

1620.0

25

12

14.0

1800

2115

50

140

1960

5

44

48

2020

M45

1866

1820.0

30

15

15.0

2000

2325

54

150

2170

5

48

48

2230

M45

2070

2020.0

30

15

16.0

2200

2550

58

160

2370

6

52

56

2440

M52

2275

2220.0

35

15

2400

2760

62

170

2570

6

56

56

2650

M52

2478

2420.0

35

15

2600

2960

65

180

2780

6

60

56

2850

M52

2680

2620.0

40

18

2800

3180

70

190

3000

6

64

56

3070

M52

2882

2820.0

40

18

3000

3405

75

200

3210

6

68

62

M56

3085

3020.0

40

18

Weight chart of Bs 4504 Forged Flange

Standard

Class

Diameter

Bolt Circle Diameter

Number of Bolts

Bolt Size

Diameter of Bolt Hole

AS4087 Flanges

PN14 Flanges

95

67

4

M12

14

AS 2129 Flange

Table C Flanges

95

67

4

13

14

Table D Flanges

95

67

4

13

14

Table E Flanges

95

67

4

13

14

Table F Flanges

95

67

4

13

14

Table H Flanges

114

83

4

16

17

Table J Flanges

114

83

4

16

17

ANSI B16.5 Flanges

ANSI 150 Flanges

89

60

4

13

16

ANSI 300 Flanges

95

67

4

13

16

ANSI 600 Flanges

95

67

4

13

16

ANSI 900 Flanges

121

83

4

19

22

ANSI 1500 Flanges

121

83

4

19

22

BS 4504 (DIN) Flange

PN6 Flanges

80

55

4

M10

11

PN10 Flanges

95

65

4

M12

14

PN16 Flanges

95

65

4

M12

14

PN20 Flanges

90

60.5

4

M14

16

PN25 Flanges

95

65

4

M12

14

PN40 Flanges

95

65

4

M12

14

BS 4504 Pipe Flanges Pressure Rating

ASME/ANSI B 16.36

Welding Neck Flange, Slip on Flange, Threaded Flange

PRESSURE CLASS

300, 400, 600, 900, 1500, 2500

ASME/ANSI B 16.5

Welding Neck Flange, Slip on Flange, Blind Flange, High Hub Blind Flange, Socket Weld Flange, Lap Joint Flange, Threaded Flange, Ring Type Joint Flange

PRESSURE CLASS

150, 300, 400, 600, 900, 1500, 2500

ASME/ANSI B 16.47

Welding Neck Flange, Blind Flange [Series A & B]

PRESSURE CLASS

75, 150, 300, 400, 600, 900

BS 4504 SEC 3.1

Welding Neck Flange, Hubbed Slip on Flange, Hubbed Threaded Flange, Lapped Pipe End Flange, Plate Flange, Loose Plate Flange, Loose Plate With Weld Neck Flange, Blank Flange

PRESSURE CLASS

PN 2.5 TO PN 40

BS 4504[PART 1]

Welding Neck Flange, Hubbed Slip-On Hubbed Threaded, Plate Flange, Loose Plate With Weld On Plate Collar, Blank Flange

PRESSURE CLASS

PN 2.5 TO PN 400

BS 1560 BOSS

Welding Neck Flange, Socket Welding Flange, Slip-On Flange, Blind Flange, Screwed Boss Flange, Lapped Flange

PRESSURE CLASS

150, 300, 400, 600, 900, 1500, 2500

BS10

Welding Neck Flange, Plate Slip-On Flange, Screwed Boss Flange, Slip-On Boss Flange, Blind Flange

TABLE

D, E, F, H

DIN FLANGES

DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673

PRESSURE CLASS

PN 6 TO PN 100

Material of ANSI B16.5 Class 150 BS 4504 Flange

Stainless Steel

ASTM/ASME A/SA182 F304, F304L, F316, F316L, ASTM/ASME A/SA351 CF8, CF3, CF8M, CF3M, DIN 1.4301, DIN 1.4306, DIN 1.4401, DIN 1.4404, DIN 1.4308, DIN 1.4408, DIN 1.4306, DIN 1.4409

Carbon Steel

ASTM/ASME A/SA105 A/SA105N & A/SA216-WCB, DIN 1.0402, DIN 1.0460, DIN 1.0619, Die Steel, ASTM A105 / ASME SA105, A105N, ASTM A350 LF2 / ASME SA350, High Yield CS ASTM A694 / A694 (F52 F56 F60 F65 F70 F80)

Alloy Steel

ASTM A182 / ASME SA182 F5, F9, F11, F12, F22, F91

Copper

T1, T2, C10100, C10200, C10300, C10400, C10500, C10700, C10800, C10910,C10920, TP1, TP2, C10930, C11000, C11300, C11400, C11500, C11600, C12000,C12200, C12300, TU1, TU2, C12500, C14200, C14420, C14500, C14510, C14520, C14530, C17200, C19200, C21000, C23000, C26000, C27000, C27400, C28000, C33000, C33200, C37000, C44300, C44400, C44500, C60800, C63020, C68700, C70400, C70600, C70620, C71000, C71500, C71520, C71640, etc

Titanium

ASTM B381 / ASME SB381, Titanium Gr. 1, Titanium Gr. 2, Titanium Gr. 4, Titanium Gr. 5, Titanium Gr. 7

ASTM  R50250/GR.1 | R50400/GR.2 | R50550/GR.3 | R50700/GR.4 | GR.6 |R52400/GR.7 | R53400/GR.12 | R56320/GR.9 |R56400/GR.5

Copper Nickel

ASTM / ASME SB 61 / 62 / 151 / 152, Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640

Brass

3602 / 2604 / H59 / H62 / etc.

Nickel

ASTM B564 / ASME SB564, Nickel 200, Nickel 201, Nickel 205, Nickel 205LC

Inconel

ASTM B564 / ASME SB564, Inconel 600, 601, 625, 718, 783, 690, x750

Hastelloy

ASTM B564 / ASME SB564, Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X Flanges

Monel

ASTM B564 / ASME SB564, Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500)

Alloy 20

ASTM B462 / ASME SB462, Carpenter® 20 Alloy, Alloy 20Cb-3

Aluminium

5052 /6061/ 6063 / 2017 / 7075 / etc.

Duplex

S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61

Super Duplex

S32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61

Incoloy

ASTM B564 / ASME SB564, Incoloy 800, 800H, 800HT (UNS N08800), 825 (UNS N08825), 925 Flanges

254 Smo

ASTM A182 / ASME SA182, SMO 254/6Mo, UNS S31254, DIN 1.4547

Nimonic

Nimonic 75, Nimonic 80A, Nimonic 90

Other material

Tin bronze, Aluminum bronze, Lead bronze

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