api 6a flanges manufacturer in india

API 6A Weld Neck And Blind Flange Manufacturer In India

Check API 6a Flange Material Specification And API 5000 Flange Dimensions.

API 6A Flanges Manufacturer

API 6A Flanges Manufacturer

API 6A 6B And 6BX Flanges

API 6A 6B And 6BX Flanges

API 6A Blind Flanges

API 6A Blind Flanges



API 6a Flanges Material Specification

Standards Specification Of : API 6A Flanges
ASME & ANSI Flange Types Socket-Weld, Slip-On, Lap Joint, Weld Neck, Blind, Threaded
Manufacturing Shapes Large Tongue & Groove And Small Tongue Groove, FF, Large Male-Female And Small Male-Female, Raised Face, Lap-Joint Face, RTJ
Production technique
  • Heat treated, Forged and machined
Flanges Thickness NPS ≤ 18
Bore Diameter Of Flange NPS ≤ 10
ASME B16.5 Ratings 150, 300, 400, 600, 900, 1500, 2500
Flanges Standards API605, API, ISO, UNI, EN-1092, ANSI/ASME B16.5, IS 2062, AWWA C207, BS4504, EN1092, API7S-43, API7S-15, B16.47 Series A & B, ASME B16.48, MSS S44, ISO70051, ASME B16.36, DIN, BS1560-3.1
Size Chart 1/2" to 48"
Materials Carbon Steel, Alloy Steel, Mild Steel, Stainless Steel, Duplex Steel & Super Duplex Steel, Copper Nickel, Cast Iron, Wrought Iron, Inconel, Hastelloy.
High Temperature Of Flanges Above 200°C (400°F) For 150LB Or Above 400°C (750°F)
Low Temperature Of Flanges Above -29 °C (−20°F)
Japanese Standards 5K, 10 K, 40 K, 16 K 20 K 30 K, 63 K
Most common types Threaded / Screwed / Forged / Plate
Industries Use Flanges Food Processing & Manufacturing
Municipal & Waterworks Pipe Systems
Power Plants And The Nuclear Power Industry

API 6A 3000 Flange Dimensions


API 6A 3000 Flange Dimensions

Size B OD C K P E T Q X BC N H LN HL JL R/RX
2 1/16" 53.2 215 3 124 95.25 7.9 46.1 38.1 104.8 165.1 8 26 109.6 60.3 50 24
2 9/16" 65.9 245 3 137 107.95 7.9 49.3 41.3 123.8 190.5 8 29 112.7 73 59.7 27
3 1/8" 81.8 240 3 156 123.83 7.9 46.1 38.1 127 190.5 8 26 109.5 88.9 74.4 31
4 1/16" 108.7 290 3 181 149.23 7.9 52.4 44.4 158.8 235 8 32 122.2 114.3 98 37
5 1/8" 131 350 3 216 180.98 7.9 58.8 50.8 190.5 279.4 8 35 134.9 141.3 122.9 41
7 1/16" 181.8 380 6 241 211.15 7.9 63.5 55.6 235 317.5 12 32 147.6 168.3 147.1 45
9" 229.4 470 6 308 269.88 7.9 71.5 63.5 298.5 393.7 12 39 169.9 219.1 189.7 49
11" 280.2 545 6 362 323.85 7.9 77.8 69.9 368.3 469.9 16 39 192.1 273 237.2 53
13 5/8" 346.9 610 6 419 381 7.9 87.4 79.4 419.1 533.4 20 39 - - - 57
16 3/4" 426.2 705 6 524 469.9 11.2 100.1 88.9 508 616 20 45 - - - 66
20 3/4" 527.8 855 6 648 584.2 12.7 120.7 108 622.3 749.3 20 54 - - - 74


API 5000 Flange Dimensions


API 5000 Flange Dimensions

Size B OD C K P E T Q X BC N H LN HL JL R/RX
2 1/16" 53.2 215 3 124 95.25 7.9 46.1 38.1 104.8 165.1 8 26 109.5 60.3 43.7 24
2 9/16" 65.9 245 3 137 107.95 7.9 49.3 41.3 123.8 190.5 8 29 112.7 73 54.9 27
3 1/8" 81.8 265 3 168 136.53 7.9 55.6 47.7 133.3 203.2 8 32 125.4 88.9 67.5 35
4 1/16" 108.7 310 3 194 161.93 7.9 62 54 161.9 241.3 8 35 131.8 114.3 88.1 39
5 1/8" 131 375 3 229 193.68 7.9 81 73.1 196.8 292.1 8 42 163.5 141.3 110.3 44
7 1/16" 181.8 395 6 248 211.15 9.7 92.1 82.6 228.6 317.5 12 39 181 168.3 132.6 46
9" 229.4 485 6 318 269.88 11.2 103.2 92.1 292.1 393.7 12 45 223.8 219.1 173.8 50
11" 280.2 585 6 371 323.85 11.2 119.1 108 368.3 482.6 12 51 265.1 273.1 216.7 54

API 6A 10000 PSI Flange Dimensions


API 6A 10000 PSI Flange Dimensions

Size B OD C E1 Q G K T J1 J2 J3 J4 R BC N H BX
1 13/16" 46.8 185 3 - 5.56 77.77 105 42.1 88.9 65.1 48.5 - 10 146.1 8 23 151
2 1/16" 53.2 200 3 - 5.95 86.23 111 44.1 100 74.7 51.6 - 10 158.8 8 23 152
2 9/16" 65.9 230 3 - 6.75 102.77 132 51.2 120.7 92.1 57.2 - 10 184.2 8 26 153
3 1/16" 78.6 270 3 - 7.54 119 152 58.4 142.1 110.2 63.5 - 10 215.9 8 29 154
4 1/16" 104 315 3 - 8.33 150.62 185 70.3 182.6 146.1 73.1 - 10 258.8 8 32 155
5 1/8" 131 360 3 9.5 9.53 176.66 221 79.4 223.8 182.6 81 6.4 10 300 12 32 169
7 1/16" 180.2 480 6 11.1 11.11 241.83 302 103.2 301.6 254 95.3 9.7 16 403.2 12 42 156
9 " 229.4 550 6 12.7 12.7 299.06 359 123.9 374.7 327.1 93.7 9.7 16 476.3 16 42 157
11" 280.2 655 6 14.3 14.29 357.23 429 141.3 450.9 400.1 103.2 14.2 16 565.2 16 48 158
13 5/8" 346.9 770 6 15.9 15.88 432.64 518 168.3 552.5 495.3 114.3 17.5 16 673.1 20 51 159
16 3/4" 426.2 870 6 8.3 8.33 478.33 576 168.3 655.6 601.7 76.2 30.2 19 776.3 24 51 162
18 3/4" 477 1040 6 18.3 18.26 577.9 697 223.1 752.5 674.7 155.6 25.4 16 925.5 24 61 164
21 1/4" 540.5 1145 6 19.1 19.05 647.88 781 241.3 847.7 762 165.1 31.8 21 1022.4 24 67 166

Mechanical Strength Of API 6a 6b And 6bx Flanges, Buy API 6A Adapter Flange Best Price & Fast Delivery, We Provide API 6a WN Flanges In-House Cutting.

Mechanical Chart Of API 6a 6b And 6bx Flanges

Test Pressure 3,000 PSI 4,500 PSI 7,500 PSI 15,000 PSI 22,500 PSI 30,000 PSI
Maxi. Working Pressure 2,000 PSI 3,000 PSI 5,000 PSI 10,000 PSI 15,000 PSI 20,000 PSI
Temperature Rating K (-60 Deg C) TO Y (+345 Deg C) K (-60 Deg C) To Y (+345 Deg C) K (-60 Deg C) To Y (+345 Deg C) K (-60 Deg C) To Y (+345 Deg C) K (-60 Deg C) To Y (+345 Deg C) K (-60 Deg C) To Y (+345 Deg C)
Product Specification Levels 1, 2, 3 & 4 1, 2, 3 & 4 1, 2, 3 & 4 1, 2, 3 & 4 1, 2, 3 & 4 1, 2, 3 & 4

EN 1092-2 API 10000 Pressure Rating

Size Of Flange Working Pressure Of API 6a (PSI) O.D. No. of Bolt Holes Dia. of Bolt Holes Bolts Length Ring Gasket Of API
1-13/16" 10,000 7-3/8" 8 3/4" 5-1/4" BX-151
1-13/16" 15,000 8-3/16" 8 7/8" 6" BX-151
1-13/16" 20,000 10-1/8" 8 1" 7-3/4" BX-151
2-1/16" 2,000 6-1/2" 8 5/8" 5/8" R-23
2-1/16" 3,000/5,000 8-1/2" 8 7/8" 7/8" R-24
2-1/16" 10,000 7-7/8" 8 3/4" 3/4" BX-152
2-1/16" 15,000 8-3/4" 8 7/8" 7/8" BX-152
2-1/16" 20,000 11-5/16" 8 1-1/8" 1-1/8" BX-152
2-9/16" 2,000 7-1/2" 8 3/4" 5-1/4" R-26
2-9/16" 3,000/5,000 9-5/8" 8 1" 7" R-27
2-9/16" 10,000 9-1/8" 8 7/8" 6-1/4" BX-153
2-9/16" 15,000 10" 8 1" 7" BX-153
2-9/16" 20,000 12-13/16" 8 1-1/4" 9-1/2" BX-153
3-1/8" 2,000 8-1/4" 8 3/4" 5-1/2" R-31
3-1/8" 3,000 9-1/2" 8 7/8" 6-1/4" R-31
3-1/8" 5,000 10-1/2" 8 1-1/8" 7-3/4" R-35
3-1/16" 10,000 10-5/8" 8 1" 7-1/4" BX-154
3-1/16" 15,000 11-5/16" 8 1-1/8" 8" BX-154
3-1/16" 20,000 14-1/16" 8 1-3/8" 10-3/4" BX-154
4-1/16" 2,000 10-3/4" 8 7/8" 6-1/4" R-37
4-1/16" 3,000 11-1/2" 8 1-1/8" 7-1/2" R-37
4-1/16" 5,000 12-1/4" 8 1-1/8" 8-3/8" BX-155
4-1/16" 20,000 17-9/16" 8 1-3/4" 12-3/4" BX-155
5-1/8" 5,000 14-3/4" 8 1-1/2" 10-3/4" R-44
7-1/16" 2,000 14" 12 1" 7-1/2" R-45
7-1/16" 3,000 15" 12 1-1/8" 8-1/2" R-45
7-1/16" 5,000 15-1/2" 12 1-3/8" 11-1/4" R-46
7-1/16" 10,000 18-7/8" 12 1-1/2" 11-3/4" BX-156
7-1/16" 15,000 19-7/8" 16 1-1/2" 13" BX-156
7-1/16" 20,000 24-13/16" 16 2" 17-3/4" BX-156
9" 2,000 16-1/2" 12 1-1/8" 8-1/2" R-49
9" 3,000 18-1/2" 12 1-3/8" 9-1/2" R-49
9" 5,000" 19" 12 1-5/8" 12-1/2" R-50
9" 10,000 21-3/4" 16 1-1/2" 13-1/4" BX-157
9" 15,000 25-1/2" 16 1-7/8" 16" BX-157
11" 2,000 20" 16 1-1/4" 9-1/4" R-53
11" 3,000 21-1/2" 16 1-3/8" 10" R-53
11" 5,000 23" 12 1-7/8" 14-1/4" R-54
11" 10,000 25-3/4" 16 1-3/4" 15-3/8" BX-158
11" 15,000 32" 20 2" 19-1/2" BX-158
13-5/8" 2,000 22" 20 1-1/4" 9-1/2" R-57
13-5/8" 3,000 24" 20 1-3/8" 10-3/4" R-57
13-5/8" 5,000 26-1/2" 16 1-5/8" 12-3/4" BX-160
13-5/8" 10,000 30-1/4" 20 1-7/8" 17-3/4" BX-159
13-5/8" 15,000 34-7/8" 20 2-1/4" 21" BX-159
16-3/4" 2,000 27" 20 1-1/2" 10-3/4" R-65
16-3/4" 3,000 27-3/4" 20 1-5/8" 12-1/4" R-66
16-3/4" 5,000 30-3/8" 16 1-78" 14-3/4" BX-162
16-3/4" 10,000 34-5/16" 24 1-7/8" 17-3/4" BX-162
18-3/4" 5,000 35-5/8" 20 2" 18" BX-163
16-3/4" 10,000 40-15/16" 24 2-1/4" 23" BX-164
20-3/4" 3,000 33-3/4" 20 2" 15-1/4" R-74
21-1/4" 2,000 32" 24 1-5/8" 12-1/2" R-73
21-1/4" 5,000 39" 24 2" 19" BX-165
21-1/4" 10,000 45" 24 2-1/2" 24-3/4" BX-166
26-3/4" 2,000 41" 20 1-3/4" 14-1/4" BX-167
21-1/4" 3,000 43-3/8" 24 2" 17-1/2" BX-168


ASME B16.5 API 6B Flange Weight

NPS In Inch. DN In MM Flange Outside Daimeter A In MM Flange Thickness D In MM API 6a SORF Flange Weight In KG API 6a WN Flange Weight In KG API 6a BLRF Flange Weight In KG
1/ 2 15 88.9 11.2 0.4 0.5 0.4
3/ 4 20 98.6 12.7 0.6 0.7 0.6
1 25 108 14.2 0.8 1 0.9
1 1/ 4 32 117.3 15.7 1 1.3 1.2
1 1/ 2 40 127 17.5 1.3 1.7 1.5
2 50 152.4 19.1 2.1 2.6 2.4
2 1/ 2 65 177.8 22.4 3.3 4.1 3.9
3 80 190.5 23.9 3.9 4.9 4.9
3 1/ 2 90 215.9 23.9 4.8 6.1 6.2
4 100 228.6 23.9 5.3 6.8 7.0
5 125 254 23.9 6.1 8.6 8.6
6 150 279.4 25.4 7.5 10.6 11.3
8 200 342.9 28.4 12.1 17.6 19.6
10 250 406.4 30.2 16.5 24 28.6
12 300 482.6 31.8 26.2 36.5 43.2
14 350 533.4 35.1 34.6 48.4 58.1
16 400 596.9 36.6 44.8 60.6 76.1
18 450 635 39.6 48.9 68.3 93.7
20 500 698.5 42.9 61.9 84.5 122.0
24 600 812.8 47.8 86.9 115 185.0

API 6A 10000 PSI Flange Dimensions, Check The Market Price Before You Buy Api 6a And 6b Flanges In India.

Available Type Of API Flange

ASTM A105, 6 Inch, 300LB, EN1092-1 Pn 16, Api 6a Type 6bx 10000 Psi

ASTM A105, 6 Inch, 300LB, EN1092-1 Pn 16, Api 6a Type 6bx 10000 Psi
8 Inch, PN 20, RF, ASME B16.5, DN 450, Api 6a 6b And 6bx Flanges

8 Inch, PN 20, RF, ASME B16.5, DN 450, Api 6a 6b And 6bx Flanges
 OD 2876.55mm x ID2514.6mm, 10 Inch, 150#, BS 4504, Ring Gaskets For Api 6a Flanges

OD 2876.55mm x ID2514.6mm, 10 Inch, 150#, BS 4504, Ring Gaskets For Api 6a Flanges

23 Inch, A182 F316L, PN20, RF, DN300, Api Spec 6a Flanges

23 Inch, A182 F316L, PN20, RF, DN300, Api Spec 6a Flanges
Raised Face, BS 3293, PN20, ASTM A105, DN1000, API 6a Blind And Api 6a Bx Flange

Raised Face, BS 3293, PN20, ASTM A105, DN1000, API 6a Blind And Api 6a Bx Flange
RF, PN20, 3 Inch, A105, BS 3293, Api 6a And 6b Flanges

RF, PN20, 3 Inch, A105, BS 3293, Api 6a And 6b Flanges

Class 300, DN300, 25 Inch, Class E, A182 F304L, API 6A Threaded Flange

Class 300, DN300, 25 Inch, Class E, A182 F304L, API 6A Threaded Flange
JIS B2313, 150LB, 12 Inch, A350 LF2, RF, API 6A 6BX Flange

JIS B2313, 150LB, 12 Inch, A350 LF2, RF, API 6A 6BX Flange
Grade 70 Custom Flange, DN300, RF, PN20, SA516, Api 6a Type 6bx Flange

Grade 70 Custom Flange, DN300, RF, PN20, SA516, Api 6a Type 6bx Flange

SCH 80, 10 inch, Class 900, API 6A Slip on Flanges

SCH 80, 10 inch, Class 900, API 6A Slip on Flanges
SCH 120, ASTM A105, DN300, 4 inch 900LB, Api 6a Type 6bx Flange

SCH 120, ASTM A105, DN300, 4 inch 900LB, Api 6a Type 6bx Flange
SCH120, A182 304L, DN 150, 2 inch, 2500LB, API 10000 Flange

SCH120, A182 304L, DN 150, 2 inch, 2500LB, API 10000 Flange


API 6A Weld Neck Flange Dimensions

MSS SP-44 API 6A Weld Neck / Blind / RTJ Flange Dimensions

Size

B

OD

C

E1

Q

G

K

T

J1

J2

J3

J4

R

BC

N

H

BX

1 13/16″

46.8

185

3

5.56

77.77

105

42.1

88.9

65.1

48.5

10

146.1

8

23

151

2 1/16″

53.2

200

3

5.95

86.23

111

44.1

100

74.7

51.6

10

158.8

8

23

152

2 9/16″

65.9

230

3

6.75

102.77

132

51.2

120.7

92.1

57.2

10

184.2

8

26

153

3 1/16″

78.6

270

3

7.54

119

152

58.4

142.1

110.2

63.5

10

215.9

8

29

154

4 1/16″

104

315

3

8.33

150.62

185

70.3

182.6

146.1

73.1

10

258.8

8

32

155

5 1/8″

131

360

3

9.5

9.53

176.66

221

79.4

223.8

182.6

81

6.4

10

300

12

32

169

7 1/16″

180.2

480

6

11.1

11.11

241.83

302

103.2

301.6

254

95.3

9.7

16

403.2

12

42

156

9 “

229.4

550

6

12.7

12.7

299.06

359

123.9

374.7

327.1

93.7

9.7

16

476.3

16

42

157

11″

280.2

655

6

14.3

14.29

357.23

429

141.3

450.9

400.1

103.2

14.2

16

565.2

16

48

158

13 5/8″

346.9

770

6

15.9

15.88

432.64

518

168.3

552.5

495.3

114.3

17.5

16

673.1

20

51

159

16 3/4″

426.2

870

6

8.3

8.33

478.33

576

168.3

655.6

601.7

76.2

30.2

19

776.3

24

51

162

18 3/4″

477

1040

6

18.3

18.26

577.9

697

223.1

752.5

674.7

155.6

25.4

16

925.5

24

61

164

21 1/4″

540.5

1145

6

19.1

19.05

647.88

781

241.3

847.7

762

165.1

31.8

21

1022.4

24

67

166



API 6A Flange Raised Face Equivalent

Weld Neck, Integral, Blinds, Equivalent
Maximam
Working
Pressure
2000
PSI
3000
PSI
5000
PSI
Test Pressure 3000 PSI 4500 PSI 7500 PSI
Product
Spec
Levels
1, 2, 3 and 4 1, 2, 3 and 4 1, 2, 3 and 4
API
Temperature
Rating
K (-60 ° C)
to
Y (+345 ° C)
K (-60 ° C)
to
Y (+345 ° C)
K (-60 ° C)
to
Y (+345 ° C)
Integral, Blind, Target Blind and Test Flanges
Minimam Yield 60 000 PSI 60 000 PSI 60 000 PSI
Minimam Tensile 85 000 PSI 85 000 PSI 85 000 PSI
Material API 60K API 60K API 60K


API 6a Flange Weight, Check Difference Between Api 6a And 6b Flanges, API Flange Bolt Chart.

EN 1092-1 API 6A Spec Flange Bolt & Ring Chart

API 6A Spec Flange Bolt & Ring Chart


BS 4504 API 6A Adapter Flange Torque Values

API 6A Adapter Flange Torque Values

Temperature Ratings Of Api Spec 6a Flanges, API 6A Flanges Manufacturer In India.

PN16 API 6a Threaded Flange Tolerance

Nominal Size Of Bore Maximam Bore Outside Diameter Tolerance Maximam Chamfer
B D D C
2000 PSI
26¾ 26.78 41 ± 0.12 0.25
30 30.03 44.19 ± 0.12 0.25
3000 PSI
26¾ 26.78 43.38 ± 0.12 0.25
30 30.03 46.68 ± 0.12 0.25
5000 PSI
13.3/8 13.66 26.5 ± 0.12 0.25
16¾ 16.78 30.38 ± 0.12 0.25
18¾ 18.78 35.62 ± 0.12 0.25
21¾ 21.28 39 ± 0.12 0.25
10000 PSI
1.13/16 1.84 7.38 ± 0.06 0.12
2.1/16 2.09 7.88 ± 0.06 0.12
2.9/16 2.59 9.12 ± 0.06 0.12
3.1/16 3.09 10.62 ± 0.06 0.12
4.1/16 4.09 12.44 ± 0.06 0.12
5.1/8 5.16 14.06 ± 0.06 0.12
7.1/16 7.09 18.88 ± 0.12 0.25
9 9.03 21.75 ± 0.12 0.25
11 11.03 25.75 ± 0.12 0.25
13.5/8 13.66 30.25 ± 0.12 0.25
16¾ 16.78 34.31 ± 0.12 0.25
18¾ 18.78 40.94 ± 0.12 0.25
21¼ 21.28 45 ± 0.12 0.25
15000 PSI
1.13/16 1.84 8.19 ± 0.06 0.12
2.1/16 2.09 8.75 ± 0.06 0.12
2.9/16 2.59 10 ± 0.06 0.12
3.1/16 3.09 11.31 ± 0.06 0.12
4.1/16 4.09 14.19 ± 0.06 0.12
5.1/8 5.16 16.5 ± 0.06 0.12
7.1/16 7.09 19.88 ± 0.12 0.25
9 9.03 25.5 ± 0.12 0.25
11 11.03 32 ± 0.12 0.25
13.5/8 13.66 34.88 ± 0.12 0.25
18¾ 18.78 45.75 ± 0.12 0.25
20000 PSI
1.13/16 1.84 10.12 ± 0.06 0.12
2.1/16 2.09 11.31 ± 0.06 0.12
2.9/16 2.59 12.81 ± 0.06 0.12
3.1/16 3.09 14.06 ± 0.06 0.12
4.1/16 4.09 17.56 ± 0.06 0.12
7.1/16 7.09 25.81 ± 0.12 0.25
9 9.03 31.69 ± 0.12 0.25
11 11.03 34.75 ± 0.12 0.25
13.5/8 13.66 45.75 ± 0.12 0.25
Nominal
Size
and
Bore
Dia
Raised
Face
Total
THK
Large
Dia
Hub
Small
Dia
Hub
F T A E
2000 PSI
26¾ 31.69 4.97 32.91 29.25
30 35.75 5.28 36.69 32.8
3000 PSI
26¾ 32.75 6.34 34.25 30.56
30 36.31 6.58 38.19 34.3
5000 PSI
13.3/8 18 4.44 18.94 16.69
16¾ 21.06 5.13 21.88 20.75
18¾ 24.69 6.53 26.56 23.56
21¾ 27.62 7.12 29.88 26.75
10000 PSI
1.13/16 4.12 1.66 3.5 2.56
2.1/16 4.38 1.73 3.94 2.94
2.9/16 5.19 2.02 4.75 3.62
3.1/16 6 2.3 5.59 4.34
4.1/16 7.28 2.77 7.19 5.75
5.1/8 8.69 3.12 8.81 7.19
7.1/16 11.88 4.06 11.88 10
9 14.12 4.88 14.75 12.88
11 16.88 5.56 17.75 15.75
13.5/8 20.38 6.62 21.75 19.5
16¾ 22.69 6.62 25.81 23.69
18¾ 27.44 8.78 29.62 26.56
21¼ 30.75 9.5 33.38 30
15000 PSI
1.13/16 4.19 1.78 3.84 2.81
2.1/16 4.5 2 4.38 3.25
2.9/16 5.25 2.25 5.06 3.94
3.1/16 6.06 2.53 6.06 4.81
4.1/16 7.62 3.09 7.69 6.25
5.1/8 8.88 3.88 9.62 7.88
7.1/16 12 4.6 12.81 10.88
9 15 5.75 17 13.75
11 17.88 7.38 23 16.81
13.5/8 21.31 8.06 23.44 20.81
18¾ 28.44 10.06 32 28.75
20000 PSI
1.13/16 4.62 2.5 5.25 4.31
2.1/16 5.19 2.81 6.06 5
2.9/16 5.94 3.12 6.81 5.69
3.1/16 6.75 3.38 7.56 6.31
4.1/16 8.62 4.19 9.56 8.12
7.1/16 13.88 6.5 15.19 13.31
9 17.38 8.06 18.94 16.88
11 19.88 8.81 22.31 20
13.5/8 24.19 11.5 27.31 24.75


API 6A BX Flange Thickness Calculation

NPS "A"
(OUTSIDE DAIMETER)
"B"
(Thickness.)
"C"
(RF Dia.)
"D"
(B.C.D.)
# Bolt
Holes
Diameter of
Bolt Holes
Appr.
Weight
1/2" 3-1/2 7/16 1-3/8 2-3/8 4 5/8 2
3/4" 3-7/8 1/2 1-11/16 2-3/4 4 5/8 2
1" 4-1/4 9/16 2 3-1/8 4 5/8 2
1-1/4" 4-5/8 5/8 2-1/2 3-1/2 4 5/8 3
1-1/2" 5 11/16 2-7/8 3-7/8 4 5/8 3
2" 6 3/4 3-5/8 4-3/4 4 3/4 4
2-1/2" 7 7/8 4-1/8 5-1/2 4 3/4 7
3" 7-1/2 15/16 5 6 4 3/4 9
3-1/2" 8-1/2 15/16 5-1/2 7 8 3/4 13
4" 9 15/16 6-3/16 7-1/2 8 3/4 17
5" 10 15/16 7-5/16 8-1/2 8 7/8 20
6" 11 1 8-1/2 9-1/2 8 7/8 27
8" 13-1/2 1-1/8 10-5/8 11-3/4 8 7/8 47
10" 16 1-3/16 12-3/4 14-1/4 12 1 67
12" 19 1-1/4 15 17 12 1 123
14" 21 1-3/8 16-1/4 18-3/4 12 1-1/8 139
16" 23-1/2 1-7/16 18-1/2 21-1/4 16 1-1/8 187
18" 25 1-9/16 21 22-3/4 16 1-1/4 217
20" 27-1/2 1-11/16 23 25 20 1-1/4 283
24" 32 1-7/8 27-1/4 29-1/2 20 1-3/8 415