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BS 4504 Flange

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BS 4504 Flange Supplier, Manufacturer in India

BS 4504 Flange Supplier, Manufacturer

Unichem Steel & Alloy Pvt. Ltd. is a trusted Manufacturer, Exporter, and Supplier of a comprehensive range of BS 4504 Flange within the global industrial market. British Standard 4504 Circular Flange for Pipe, Valve, and Fitting, Specification for Steel Flanges. BS 4504 Flanges substantially agree with ISO 7005-1:1992 Flanges. BS 4504:1969 remains commonly used. There are minor differences in dimensions between the 2 versions. BS 4504 Flanges are circular flanges that are made from steel and gray or malleable forged iron. the dimensions of the flange range from DN 15 to DN 2000 and therefore 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 consistent with pressure number PN 16. There are flanges starting from PN6 to PN64. These flanges are often either forged or stamped during manufacture. the fabric grades used for the making of the BS 4504 Pipe Flanges vary consistent with ASTM A182. The Bs 4504 Forged Flange springs from one piece of the material so it’s stronger. There are different classes and dimensions to the various sorts of the DIN86029 PN10 BS 4504 Flanges. The BS 4504 PN6 Flange is used in power generation, oil and gas, and other general corrosive applications.

Largest Stockist of BS 4504 Flanges, BS 4504 Flange PN6-PN40, BS 4504 Forged Flange, BS 4504 Blind Flange, BS 4504 Plate Flange, BS 4504 Threaded Flange, BS 4504 Weld Neck Flange in Mumbai.

Most Trusted Exporters of BS 4504 Flanges in South Africa, Saudi Arabia, Spain, Kuwait, Singapore, Malaysia, UAE, Italy, Nigeria, Iraq, Thailand, Turkey, Vietnam, Oman, Qatar, Myanmar, Sri Lanka.

BS 4504 Flange Specifications

Specifications

ASTM A182, A 240, A105, A350, A694, A516 / ASME SA182, SB240, SA 105, SA350, SA694

Standards / Dimensions

ANSI B16.47, MSS SP44, ANSI B16.5, Series A & B, ASA, API-605, AWWA, B16.48, BS 10, BS4504, EN-1092, DIN.

Size & Thickness

½” (15 NB) to 48″ (1200NB)

Pressure Class

PN6, PN10, PN16, PN25, PN40, PN64 etc.

Flange Class

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

Forms

BS 4504

Flange Face Type

Flat Face (FF), Raise Face (RF), Ring Joint (RJT)

Connection Type

Ring Type Joint, Lap-Joint Face, Raised Face, Flat Face, Large Male-Female, Small Male-Female, Large Tongue & Groove, Small Tongue & Groove


Leading Manufacturers of Different Types of ASTM A182 Stainless Steel Flanges in the form of Slip On Flange | Weld Neck Flange | Blind Flange | Lap Joint Flange | Threaded Flange | Socket Weld Flange | Plate Flange | Ring Joint Type Face | Spectacle Blind Flange | High Hub Blinds | Orifice Flanges | Reducing Flanges | Square Flanges | Groove & Tongue Flanges | Long Neck Weld Flanges | Spades and Ring Spacers Flange | Weldo Flange | Nipo Flange | Expander Flange at Best Prices in India.

BS 4504 Flange Dimensions

BS 4504 Standard Flange Facing Dimensions

DN A
mm 		      Face Dimensions      
PN 2.5 PN 6 PN 10 PN 16 PN 25 PN 40 B
mm 		C
mm 		D
mm 		E
mm 		a
mm 		b
mm 		c
mm 		d mm αmm e
mm
10 35 35 40 40 40 40 34 35 24 23 2 4 3 2 – 5
15 40 40 45 45 45 45 39 40 29 28 2 4 3 2 – 5
20 50 50 58 58 58 58 50 51 36 35 2 4 3 2 41°16′ 5
25 60 60 68 68 68 68 57 58 43 42 2 4 3 2 41°16′ 5
32 70 70 78 78 78 78 65 66 51 50 2 4 3 2 41°16′ 5
40 80 80 88 88 88 88 75 76 61 60 3 4 3 2 41°16′ 5
50 90 90 102 102 102 102 87 88 73 72 3 4 3 2 41°16′ 5
65 110 110 122 122 122 122 109 110 95 94 3 4 3 2 41°16′ 5
80 128 128 138 138 138 138 120 121 106 105 3 4 3 2 41°16′ 5
100 148 148 158 158 162 162 149 150 129 128 3 4.5 3.5 2.5 32°15′ 6
125 178 178 188 188 188 188 175 176 155 154 3 4.5 3.5 2.5 32°15′ 6
150 202 202 212 212 218 218 203 204 183 182

3

4.5 3.5 2.5 32°15′ 6
200 258 258 268 268 278 285 259 260 239 238 3 4.5 3.5 2.5 32°15′ 6
250 312 312 320 320 335 345 312 313 292 291 3 4.5 3.5 2.5 32°15′ 6
300 365 365 370 378 395 410 363 364 343 342 4 4.5 3.5 2.5 32°15′ 6
350 415 415 430 438 450 465 421 422 395 394 4 5 4 3 27°24′ 7
400 465 465 482 490 505 535 473 474 447 446 4 5 4 3 27°24′ 7
450 520 520 532 550 555 560 523 524 497 496 4 5 4 3 27°24′ 7
500 570 570 585 610 615 615 575 576 549 548 4 5 4 3 27°24′ 7
600 670 670 685 725 720 735 675 676 649 648 5 5 4 3 27°24′ 7
700 775 775 800 795 820 – 777 778 751 750 5 5 4 3 27°24′ 7
800 880 880 905 900 930 – 882 883 856 855 5 5 4 3 27°24′ 7
900 980 980 1005 1000 1030 – 987 988 961 960 5 5 4 3 27°24′ 7
1000 1080 1080 1110 1115 1140 – 1092 1094 1062 1060 5 6 5 4 28°39′ 8
1200 1280 1295 1330 1330 1350 – 1292 1294 1262 1260 5 6 5 4 28°39′ 8
1400 1480 1510 1535 1530 1560 – 1492 1494 1462 1460 5 6 5 4 28°39′ 8
1600 1690 1710 1760 1750 1780 – 1692 1694 1662 1660 5 6 5 4 28°39′ 8
1800 1890 1920 1960 1950 1985 – 1982 1894 1862 1860 5 6 5 4 28°39′ 8
2000 2090 2125 2170 2150 2210 – 2092 2094 2062 2060 5 6 5 4 28°39′ 8

BS 4504 Standard Flange Drilling Details and Dimensions.

DN PN A B C Bolt Holes
　 　 mm mm mm No. Bolt size
10 2.5 & 6 75 50 11 4 M10
10,16, 90 60 14 4 M12
15 2.5 & 6 80 55 11 4 M10
10 & 16 95 65 14 4 M12
25 & 40 95 65 14 4 M12
20 2.5 & 6 90 65 11 4 M10
10 & 16 105 75 14 4 M12
25 &40 105 75 14 4 M12
25 2.5 & 6 100 75 11 4 M10
10 & 16 115 85 14 4 M12
25&40 115 85 14 4 M12
32 2.5 & 6 120 90 14 4 M12
10 & 16 140 100 18 4 M16
25 & 40 140 100 18 4 M16
40 2.5 & 6 130 100 14 4 M12
10 & 16 150 110 18 4 M16
25 &40 150 110 18 4 M16
50 2.5 & 6 140 110 14 4 M12
10 & 16 165 125 18 4 M16
25 &40 165 125 18 4 M16
65 2.5 & 6 160 130 14 4 M12
10 & 16 185 145 18 4/8 M16
25 & 40 185 145 18 8 M16
80 2.5 & 6 190 150 18 4 M16
10 & 16 200 160 18 8 M16
25 &40 200 160 18 8 M16
100 2.5 & 6 210 170 18 4 M16
10 & 16 220 180 18 8 M16
25 &40 235 190 22 8 M20
125 2.5 & 6 240 200 18 8 M16
10 & 16 250 210 18 8 M16
25 & 40 270 220 26 8 M24
150 2.5 & 6 265 225 18 8 M16
10 & 16 285 240 22 8 M20
25 & 40 300 250 26 8 M24
200 2.5 & 6 320 280 18 8 M16
10 & 16 340 295 22 8/12 M20
25 360 310 26 12 M24
40 375 320 30 12 M27
250 2.5 & 6 375 335 18 12 M16
10 395 350 22 12 M20
16 405 355 26 12 M24
25 425 370 30 12 M27
40 450 385 33 12 M30
300 2.5 & 6 440 395 22 12 M20
10 445 400 22 12 M20
16 460 410 26 12 M24
25 485 430 30 16 M27
40 515 450 33 16 M30

BS 4504 Standard Code 101 Plate Flange Dimensions

DN PN A mm B mm C mm
10 2.5, 6 75 12 18
10 &16 90 14
25 & 40 90 14
15 2.5 & 6 80 12 22
10 &16 95 14
　 25 & 40 95 14
20 2.5 & 6 90 14 27.5
10 &16 105 16
25 & 40 105 16
25 2.5 & 6 100 14 34.5
10 &16 115 16
25 & 40 115 16
32 2.5 & 6 120 16 43.5
10 &16 140 18
25 & 40 140 18
40 2.5 & 6 130 16 49.5
10 &16 150 18
25 & 40 150 18
50 2.5 & 6 140 16 61.5
10 & 16 165 20
25 & 40 165 20
65 2.5 & 6 160 16 77.5
10 & 16 185 20
25 & 40 185 22
80 2.5 & 6 190 18 90.5
10 &16 200 20
25 & 40 200 24
100 2.5 & 6 210 18 116
10 &16 220 22
25 & 40 235 26
125 2.5 & 6 240 20 141.5
10 & 16 250 22
25 & 40 270 28
150 2.5 & 6 265 20 170.5
10 & 16 285 24
25 & 40 300 30
200 2.5 & 6 320 22 221.5
10 &16 340 24
25 360 32
40 375 36
250 2.5 & 6 375 24 276.5
10 395 26
16 405 29
25 425 35
40 450 42
300 2.5 & 6 440 24 327.5
10 445 26
16 460 32
25 485 38
40 515 48
350 2.5 & 6 490 26 359.5
10 505 28
16 520 35 359
25 555 42 359.5
40 580 54
400 2.5 & 6 540 28 411
10 565 32
16 580 38
25 620 46
40 660 60
450 2.5 & 6 595 30 462
10 615 36
16 640 42
25 670 50
40 685 66
500 2.5 & 6 645 30 513.5
10 670 38
16 715 46
25 730 56
40 755 72
600 2.5 & 6 755 32 616.5
10 780 42
16 840 52
25 845 68
40 890 84
700 2.5 860 36 To be specifiedby purchaser
800 2.5 975 38
900 2.5 1075 40
1000 2.5 1175 42
1200 2.5 1375 44
1400 2.5 1575 48
1600 2.5 1790 51
1800 2.5 1990 54
2000 2.5 2190 58

BS 4504 Standard Code 111 Weld Neck Flange Dimensions

DN PN A mm B mm C mm D mm E mm F mm G mm H mm
10 2.5,6 75 17.2 12 28 6 26 3 1.8
10 90 14 35 　 28 1.8
16 90 14 35 　 28 1.8
25 90 16 35 　 28 1.8
40 90 16 35 　 28 1.8
15 2.5,6 80 21.3 12 30 6 30 3 2
10 95 14 35 32 2
16 95 14 35 32 2
25 95 16 38 32 2
40 95 16 38 32 2
20 2.5,6 90 26.9 14 32 6 38 4 2.3
10 105 16 38 39 2.3
16 105 16 38 39 2.3
25 105 18 40 40 2.3
40 105 18 40 40 2.3
25 2.5,6 100 33.7 14 35 6 42 4 2.6
10 115 16 38 46 2.6
16 115 16 38 46 2.6
25 115 18 40 46 2.6
40 115 18 40 46 2.6
32 2.5,6 120 42.4 14 35 6 55 5 2.6
10 140 16 40 56 2.6
16 140 16 40 56 2.6
25 140 18 42 56 2.6
40 140 18 42 56 2.6
40 2.5,6 130 48.3 14 38 7 62 5 2.6
10 150 16 42 64 2.6
16 150 16 42 64 2.6
25 150 18 45 64 2.6
40 150 18 45 64 2.6
50 2.5,6 140 60.3 14 38 8 74 5 2.9
10 165 18 45 74 2.9
16 165 18 45 74 2.9
25 165 20 48 74 2.9
40 165 20 48 74 2.9
65 2.5,6 160 76.1 14 38 9 88 6 2.9
10 185 18 45 10 92 2.9
16 185 18 45 92 2.9
25 185 22 52 92 2.9
40 185 22 52 92 2.9
80 2.5,6 190 88.9 16 42 10 102 6 3.2
10 200 20 50 110 3.2
16 200 20 50 12 110 3.2
25 200 24 58 110 3.2
40 200 24 58 110 3.2

BS 4504 Standard Code 112 Slip On Flange Dimensions

DN PN A mm B mm C mm D mm  E mm F mm
10 6 75 18 12 20 25 3
10 &16 90 14 20 30
25 & 40 90 16 22 30
15 6 80 22 12 20 30 3
10 &16 95 14 20 35
25 & 40 95 16 22 35
20 6 90 27.5 14 24 40 4
10 &16 105 16 24 45
25 & 40 105 18 26 45
25 6 100 34.5 14 24 50 4
10 &16 115 16 24 52
25 & 40 115 18 28 52
32 6 120 43.5 14 26 60 5
10 &16 140 16 26 60
25 & 40 140 18 30 60
40 6 130 49.5 14 26 70 5
10 &16 150 16 26 70
25 & 40 150 18 32 70
50 6 140 61.5 14 28 80 5
10 & 16 165 18 28 84
25 & 40 165 20 34 84
65 6 160 77.5 14 32 100 6
10 & 16 185 18 32 104
25 & 40 185 22 38 104
80 6 190 90.5 16 34 110 6
10 &16 200 20 34 118
25&40 200 24 40 118
100 6 210 116 16 40 130 6
10 &16 220 20 40 140
25&40 235 24 44 145
125 6 240 141.5 18 44 160 6
10 & 16 250 22 44 168
25 & 40 270 26 48 170
150 6 265 170.5 18 44 185 8
10 & 16 285 22 44 195
25 & 40 300 28 75 190

DN PN A mm B mm C mm D mm  E mm F mm
200 6 320 221.5 20 44 240 8
10 &16 340 24 44 246
25 360 30 52 256
40 375 34 52 260
250 6 375 276.5 22 44 295 10
10 395 26 46 298
16 405 26 46 298
25 425 32 60 310
40 450 38 60 312
300 6 440 327.5 22 44 355 10
10 445 26 46 350
16 460 28 46 350
25 485 34 67 364
40 515 42 67 380
350 10 505 359.5 26 53 400 10
16 520 359 30 57 400
25 555 359.5 38 72 418
40 580 46 72 424
400 10 565 411 26 57 456 10
16 580 32 63 456
25 620 40 78 472
40 660 50 78 478
450 10 615 462 28 63 502 12
16 640 34 68 502
25 670 42 84 520
40 685 50 84 522
500 10 670 513.5 28 67 559 12
16 715 34 73 559
25 730 44 90 580
40 755 52 90 576
600 10 780 616.5 28 75 658 12
16 840 36 83 658
25 845 46 100 684
40 890 60 100 686

BS 4504 Code 113 Threaded Flange Dimensions in mm

DN PN A mm B mm C mm D mm E mm
10 6 75 25 12 20 3
16 90 30 14 20
40 90 30 16 22
15 6 80 30 12 20 3
16 95 35 14 20
40 95 35 16 22
20 6 90 40 14 24 4
16 105 45 16 24
40 105 45 18 26
25 6 100 50 14 24 4
16 115 52 16 24
40 115 52 18 28
32 6 120 60 14 26 5
16 140 60 16 26
40 140 60 18 30
40 6 130 70 14 26 5
16 150 70 16 26
40 150 70 18 32
50 6 140 80 14 28 5
16 165 84 18 28
40 165 84 20 34
65 6 160 100 14 32 6
16 185 104 18 32
40 185 104 22 38
80 6 190 110 16 34 6
16 200 118 20 34
40 200 118 24 40
100 6 210 130 16 40 6
16 220 140 20 40
40 235 145 24 44

DN PN A mm B mm C mm D mm E mm
125 6 240 160 18 44 6
16 250 168 22 44
40 270 170 26 48
150 6 265 185 18 44 8
16 285 195 22 44
40 300 200 28 52
200 6 320 240 20 44 8
16 340 246 24 44
40 375 260 34 52
250 6 375 295 22 44 10
16 405 298 26 46
40 450 312 38 60
300 6 440 355 22 44 10
16 460 350 28 46
40 515 380 42 67
350 16 520 400 30 57 10
40 580 424 46 72
400 16 580 456 32 63 10
40 660 478 50 78
450 16 640 502 34 68 12
40 685 522 50 84
500 16 715 559 34 73 12
40 755 576 52 90
600 16 840 658 36 83 12
40 890 686 60 100
700 16 910 760 36 83 12
800 16 1025 864 38 90 12
900 16 1125 968 40 94 12
1000 16 1255 1072 42 100 12

BS 4504 Code 105 Blind Flange Dimensions

DN PN A mm B mm  C mm 
10 2.5, 6 75 12 –
10 &16 90 14 –
25 & 40 90 16 –
15 2.5 & 6 80 12 –
10 &16 95 14 –
25 & 40 95 16 –
20 2.5 & 6 90 14 –
10 &16 105 16 –
25 & 40 105 18 –
25 2.5 & 6 100 14 –
10 &16 115 16 –
25 & 40 115 18 –
32 2.5 & 6 120 14 –
10 &16 140 16 –
25 & 40 140 18 –
40 2.5 & 6 130 14 –
10 &16 150 16 –
25 & 40 150 18 –
50 2.5 & 6 140 14 –
10 & 16 165 18 –
25 & 40 165 20 –
65 2.5 & 6 160 14 55
10 & 16 185 18 55
25 & 40 185 22 55
80 2.5 & 6 190 16 70
10 &16 200 20 70
25&40 200 24 70
100 2.5 & 6 210 16 90
10 &16 220 20 90
25&40 235 24 90
125 2.5 & 6 240 18 115
10 & 16 250 22 115
25 & 40 270 26 115
150 2.5 & 6 265 18 140
10 & 16 285 22 140
25 & 40 300 28 140
200 2.5 & 6 320 20 190
10 &16 340 24 190
25 360 30 190
40 375 34 190
250 2.5 & 6 375 22 235
10 395 26 235
16 405 26 235
25 425 32 235
40 450 38 235

DN PN A mm B mm  C mm 
300 2.5 & 6 440 22 285
10 445 26 285
16 460 28 285
25 485 34 285
40 515 42 285
350 2.5 & 6 490 22 325
10 505 26 325
16 520 30 325
25 555 38 325
40 580 46 325
400 2.5 & 6 540 22 375
10 565 26 375
16 580 32 375
25 620 40 375
40 660 50 375
450 2.5 & 6 595 24 425
10 615 28 425
16 640 34 425
25 670 42 425
40 685 54 425
500 2.5 & 6 645 24 475
10 670 28 475
16 715 36 475
25 730 45 475
40 755 56 475
600 2.5 & 6 755 34 575
10 780 34 575
16 840 44 575
25 845 54 575
40 890 70 575
700 2.5 860 36 –
6 860 38 –
10 895 38 670
16 910 48 670
800 2.5 975 38 –
6 975 42 –
10 1015 42 770
16 1025 52 770
900 2.5 1075 40 –
6 1075 46 –
10 1115 46 860
16 1125 58 860
1000 2.5 1175 42 –
6 1175 52 –
10 1230 52 960
16 1255 64 960
1200 2.5 1375 44 –
6 1405 60 –
10 1455 60 1160
16 1485 76 1160
1400 2.5 1575 48 –
6 1630 68 –
1600 2.5 1790 51 –
6 1830 76 –
1800 2.5 1990 54 –
6 2045 84 –
2000 2.5 2190 58 –
6 2265 92 –

BS 4504 Standard Flanges Type code, PN range and Marking Requirements

Code No.

Description

PN Range

DN Range

101

Plate flange for welding(see page 8-65)

PN 2.5

DN 10 to DN 2000

PN 6, 10, 16, 25, 40

DN 10 to DN 600

102

Loose plate flange with weld-on plate collar or for lapped pipe end (Weld-on plate collar = Code 1321 Lapped pipe end = Code 1331)

PN 6, 10, 16, 25, 40

DN 10 to DN 600

104

Loose plate flange with weld-neck collar (Weldneck collar = Code 1341)

PN 6, 10, 16, 25, 40

DN 10 to DN 600
   

PN 2.5, 6

DN 10 to DN 2000

105

Blank flange (see page 8-70)

PN 10, 16

DN 10 to DN 1200
   

PN 25, 40

DN 10 to DN 600
   

PN 2.5, 6, 10, 16

DN 10 to DN 20002

111

Weld-neck flange (see page 8-66)

PN 25

DN 10 to DN 1000
   

PN 40

DN 10 to DN 600

112

Hubbed slip-on flange for welding(see page 8-68)

PN 6

DN 10 to DN 300

PN 10, 16, 25, 40

DN 10 to DN 600

113

Hubbed threaded flange (see page 8-69)

PN 6, 10, 16, 25, 40

DN 10 to DN 150

121

Integral flange

PN 6, 10, 16, 25

DN 10 to DN 2000

PN 40

DN 10 to DN 600

BS 4504 Standard Flange Facings Types, Welding Ends of neck flange

Weld Neck Flange – Welding Ends

Flange Facings – BS 4504

Why Purchase From Unichem Steel & Alloy Pvt. Ltd.

  • Unichem Steel & Alloy Pvt. Ltd. strive for quality production of BS 4504 Flanges. We adequately test raw materials and confirm to ASTM, ASME, DIN, EN, JIS Standards to make the highest quality BS 4504 Flanges. BS 4504 Flanges is provided with 100% Radiography Test Report and Third Party Inspection or Buyer Inspection service is available on finished products.
  • Value Added Services are provided such as Epoxy & FBE coating, Sandblasting, Hot dipped galvanizing, Electropolish or other special finishes, Threading, soldering, Custom shape cutting, fabrication services on BS 4504 Flanges.
  • Unichem Steel & Alloy Pvt. Ltd. is an expert in manufacturing custom size BS 4504 Flanges with accurate dimensions and uniform wall thickness.
  • We are presently equipped with modern manufacturing equipment and inspection tools such as Lathe Machines, Milling Machine, Heating & Annealing Furnaces, forging and deep drawing presses, machining, finishing, and testing facilities. In order to maintain reliability and quality of our EN 1092-1 BS 4504 Flange, MSS SP-44 BS 4504 Flanges, ISO Standard BS 4504 Flanges.
  • As leading exporters and suppliers we keep a buffer stock of BS 4504 Flanges in all grades from ½” NB to 48” NB in Sch 10s, the 40s, 80s, 160s, XXS In order to meet the off-hand requirement of our clients.
  • BS 4504 Flanges are packaged to ensure that there is no damage during transit. In the case of exports, products are packed in wooden cases. All BS 4504 Pipe Flanges are marked with Size, Lot No, Grade, Degree, and our trademark. On special requests we make custom marking on BS 4504 Flanges.
  • Test Certificates: Raw Materials Certificate, Manufacturer Test Certificate as per EN 1092 / 3.1B, Third Party Inspection Report, 100% Radiography Test Report.
  • No minimum quantity order limit. Get Market leading prices on all types of Industrial BS 4504 Flanges in India.

BS 4504 Flanges Material & Grades

Stainless Steel BS 4504 Flange
ASTM / ASME A/SA 182: F 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316L, 316LN, 317, 317L, 321, 321H, 347, 347H, 904L.
Carbon Steel BS 4504 Flange
ASTM A105/A694/ A350 LF3/A350 LF2: F42, F46, F52, F56, F60, F65, F70
Alloy Steel BS 4504 Flange
ASTM A182: F1, F5, F9, F11, F22, F91
Duplex & Super Duplex Steel BS 4504 Flange
ASTM / ASME A/SA 182: F44, F45, F51, F53, F55, F60, F61.
Nickel Alloy BS 4504 Flange
ASTM / ASME SB 564 / 160 / 472: UNS 2200 (NICKEL 200), UNS 4400 (MONEL 400), UNS 8825 INCONEL (825), UNS 6600(INCONEL 600), UNS 6601 (INCONEL 601), UNS 6625 (INCONEL 625), UNS 10276 (HASTELLOY C 276), UNS 2201 (NICKEL 201), (ALLOY 20 / 20 CB 3)

BS 4504 Flanges Manufacturing Standards

ASME Standard ANSI B16.5, ANSI B16.47, ANSI B16.36, ANSI B16.48, BS 4504, UNI 2277/2278,, JIS, SABS1123, GOST-12820
DIN Standard DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636,DIN2637, DIN2638, DIN2673
EN Standard EN1092
ASTM A182 – ASME SA182 Standard Specification for Wrought Austenitic SS Pipe Flanges
MSS SP-44 Pipe Flange

BS 4504 Flanges Type, Size, and Pressure Class

Specification Pressure Class Size Range
ASME/ANSI B16.5 150 to 2500LBS
150 to 1500LBS		 26“ to 60″
26“ to 48″
ASME/ANSI B16.36 300 To 2500LBS 1″ to 12″
ASME/ANSI B16.47 75 to 300LBS
400, 600LBS
900LBS		 1/2“ to 12″
26“ to 60″
26“ to 48″
BS 10 TABLE-A, D, E, F, H, J, K, R, S, T 15mm to 600mm
EN 1092-1 / DIN / BS 4504 Flanges PN2.5 to PN16
PN25
PN40
PN63
PN100
PN160, PN250
PN320
PN400		 10mm to 1800mm
10mm to 1000mm
10mm to 600mm
10mm to 400mm
10mm to 350mm
10mm to 300mm
10mm to 250mm
10mm to 200mm

Ready Stock of BS 4504 Flanges in India

BS 4504 Plate Flange BS 4504 Welding Neck Flange
BS 4504 Threaded Flange BS 4504 Blind Flange
BS 4504 Flange BS 4504 PN 16 Dimensions
BS 4504 PN 25 Dimensions BS 4504 PN 40 Dimensions

BS 4504 Flange Dimensions Tolerance

Dimension

Range

Tolerance

mm

Flange Facings

Eccentricity of machined facing diameters

< DN 100

1.0

> DN 100

2.0

a  (type B facing height)

2 mm

+0, -1.0

3 mm

+0, -2.0

4 mm

+0, -3.0

5 mm

+0, -4.0

6 mm

+0, -5.0

b (type C and E facing height)

All

+0.5, -0

b (type G facing height)

All

+0, -0.5

b (type H facing height, outer)

All

+0.2, -0

c (type D and F facing height)

All

+0, -0.5

d (type H facing height, inner)

All

+0.5, -0

B and E (facing diameters)

All

+0, -0.5

C and D (facing diameters)

All

+0.5, -0

Surface Finish

Facing types A, B, E and F

All, turning

Ra = 3.2 µm min 12.5 µm max

All, other than turning

Ra = 3.2 µm min 6.3 µm max

Facing types C, D, G and H

All

Ra = 0.8 µm min 3.2 µm max

Flange Drilling Details

B (diameter of bolt circle)

Bolt sizes M10 to M24

±0.9

Bolt sizes M27 to M45

±1.4

Centre to centre of adjacent bolt holes

Bolt sizes M10 to M24

±0.45

Bolt sizes M27 to M45

±0.7

All

A (outside diameter)

< DN 150

±2.0

> DN 150 < DN 500

±3.0

> DN 500 < DN 1200

±5.0

> DN 1200 < DN 1800

±7.0

> DN 1800

±10.0

C (flange thickness, machined on both faces)

< 18 mm thickness

±1.0

> 18 mm < 50 mm thickness

±1.0

> 50 mm thickness

±1.0

C (flange thickness, machined on front face)

< 18 mm thickness

+2.0, -1.0

> 18 mm < 50 mm thickness

+4.0, -1.5

> 50 mm thickness

+7.0, -2.0

Weld Neck Flanges, Code 111

B (outside diameter of hub at welding end)

< DN 125

+3.0, -0

> DN 125 < DN 1200

+4.5, -0

> DN 1200

+6.0, -0

F (hub diameter)

< DN 50

+0, -2.0

> DN 50 < DN 150

+0, -4.0

> DN 150 < DN 300

+0, -6.0

> DN 300 < DN 600

+0, -8.0

> DN 600 < DN 1200

+0, -10.0

D (length through hub)

< DN 80

±1.5

> DN 80 < DN 250

±2.0

> DN 250

±3.0

Slip on, Code 112 and Threaded,Code 113

E (slip on flange hub diameter)B (threaded flange hub diameter)

< DN 50

+1.0, -0

> DN 50 < DN 150

+2.0, -0

> DN 150 < DN 300

+4.0, -.0

> DN 300 < DN 600

+8.0, -0

> DN 600 < DN 1200

+12.0, -0

> DN 1200 < DN 1800

+16.0, -0

> DN 1800

+20.0, -0

B (slip on bore diameter)

< DN 100

+0.5, -0

> DN 100 < DN 400

+1.0, .0

> DN 400 < DN 600

+1.5, .0

> DN 600

+3.0, -0

D (length through hub)

Same as Weld Neck D

Blank Flanges, Code 105

B (flange thickness)

Same as C for all other flanges

C (unmachined centre portion)

Maximum specified

BS 4504 Flanges Applications and Uses

  • Power Plant / Power Generation
  • Fertilizers
  • Oil & Gas
  • Refineries
  • Chemical Industry
  • Pulp and Paper Industry
  • Petrochemicals
  • Engineering Project
  • Environmental and Water Projects
  • Boiler Manufacturers
  • Pumps and Valves
  • Cement Industries
  • Aerospace Industry
  • Nuclear Industry
  • Construction
  • Ship Building Companies
  • Thermal Processing
  • Pharma Industry
  • Off-Shore Oil Drilling Companies

BS 4504 Flange Exporter

EUROPE: Albania, Austria, Belgium, Croatia, Czech Republic, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Malta, Netherlands, Norway, Portugal, Russia, Slovakia, Slovenia, Spain, Switzerland, UK, Ukraine.
ASIA: Bangladesh, Cambodia, India, Indonesia, Japan, Malaysia, Maldives, Myanmar, Singapore, South Korea, Sri Lanka, Taiwan, Thailand, Vietnam.
AFRICA: Algeria, Angola, Egypt, Equatorial Guinea, Gabon, Libya, Nigeria, South Africa, Sudan, The Republic Of Congo.
MIDDLE EAST: Bahrain, Cyprus, Iran, Iraq, Jordan, Kuwait, Oman, Qatar, Saudi Arabia (KSA), Syria, Turkey, United Arab Emirates (UAE), Yemen.
NORTH AMERICA: Bahamas, Canada, Costa Rica, Denmark, Jamaica, Mexico, Panama, Puerto Rico, Trinidad And Tobago, USA.
SOUTH AMERICA: Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Uruguay, Venezuela.

BS 4504 Flange Supplier

Aberdeen, Abu Dhabi, Ahmedabad, Ahvaz, Al Jubail, Al Khobar, Algiers, Ankara, Atyrau, Bangkok, Bengaluru, Bhopal, Bogota, Brisbane, Busan, Cairo, Calgary, Caracas, Chandigarh, Chennai, Chiyoda, Coimbatore, Colombo, Courbevoie, Dallas, Dammam, Doha, Dubai, Edmonton, Ernakulam, Faridabad, Geoje-si, Gimhae-si, Granada, Gurgaon, Hanoi, Haryana, Ho Chi Minh City, Hong Kong, Houston, Howrah, Hyderabad, Indore, Istanbul, Jakarta, Jeddah, Karachi, Kolkata, Kuala Lumpur, Kuwait City, La Victoria, Lagos, Lahore, London, Los Angeles, Ludhiana, Madrid, Manama, Melbourne, Mexico City, Milan, Montreal, Moscow, Mumbai, Muscat, Navi Mumbai, New Delhi, New York, Noida, Perth, Petaling Jaya, Pimpri-Chinchwad, Port-of-Spain, Pune, Rajkot, Rio de Janeiro, Riyadh, Santiago, Secunderabad, Seoul, Sharjah, Singapore, Surat, Sydney, Tehran, Thane, Thiruvananthapuram, Toronto, Ulsan, Vadodara, Visakhapatnam, Vung Tau.

Contact us to get a quick quote for BS 4504 Flanges.

WE ARE OFFERING BS 4504 FLANGES AS PER ISO, DIN, JIS OR ANSI STANDARD.

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