REPUTE STEEL ENGINEERING COMPANY | Manufacturer & Exporter in India

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Socket Weld Flanges



OUR BROCHURES


Socket Weld Flange Manufacturer – Repute Steel & Engineering Company


Repute Steel & Engineering Company is a leading manufacturer and supplier of high-quality Socket Weld Flanges in India, catering to high-pressure applications. These flanges are typically used for smaller-sized pipes where precision and strength are critical. A BS-4504 Socket Weld Flange is attached by inserting the pipe into the socket end and securing it with a fillet weld around the top, creating a smooth bore for improved flow of liquids or gases. Available with hub specifications ranging from 1/2" to 24", Socket Weld Reducing Flanges are fabricated according to industry standards such as MSS-SP-44 and ASTM A182, ensuring superior performance and durability across various applications.


At Repute Steel & Engineering Company, we offer Stainless Steel Socket Weld Reducing Flanges and ANSI B16.5 SWRF Flanges, with distributors located in Mumbai, India, serving both domestic and international markets. Our product range includes ASME B16.5 Carbon Steel Socket Weld Flanges in different grades and sizes to meet the specific needs of our clients. Whether it is a raised face (RF), flat face (FF), or Ring Type Joint (RTJ) facing, our flanges adhere to stringent dimensional standards for precise installation. The standard raised face height for SWRF flanges below 400# is 1/16 inch, while for those above 400#, the height increases to 1/4". These flanges are well-suited for demanding environments due to their resistance to corrosion, strength, and ease of maintenance.


Our product portfolio also covers ANSI B16.5 Socket Weld Flanges with pressure ratings from Class 150 to Class 1500 and sizes ranging from NPS 1/2 to NPS 24. The fatigue strength of Carbon Steel Socket Weld Flanges is approximately 50% greater compared to double-welded slip-on flanges, enhancing their reliability for high-pressure systems. We offer custom solutions, including Duplex Steel RTJ Flanges and Socket Weld Flanges A105, fabricated with matching wall thickness dimensions to ensure a perfect fit with the corresponding pipes. These products demonstrate exceptional durability, making them ideal for high-performance piping systems.


Stainless Steel Socket weld Flange material specification chart


ASME B16.5 Socket weld flanges Size Chart 1/2" (15 NB) to 48" (1200NB) DN10~DN5000
ASTM A182 SS socket weld blind flange Pressure Rating ANSI Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS Socket weld Flanges
Socket weld raised face flange Pressure Calculation in DIN 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 Socket weld Flanges
Socket weld Raised Face Flanges Standards ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Socket weld Flanges, ASME Socket weld Flanges, BS Socket weld Flanges, DIN Socket weld Flanges, EN Socket weld 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 ASME B16.5 SWRF Flanges 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K Socket weld Flanges
Coating aluminum socket weld flange Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized Socket weld Flanges
EN socket weld flange a105 6Bar 10Bar 16Bar 25Bar 40Bar Socket weld Flanges
Connect Type/ Flanges 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
ANSI B16.5 Socket weld Flanges Test UI trasonic flaw detector, Hydrostatic testing machine, Direct-reading Spectrograph, Magnetic particle detector
socket weld ring joint flange Equipment Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc

Pressure Class for ASTM A182 SS Socket Weld Blind Flange


Flanges pressure rating in psig for Socket Weld Flange ASME
Temperature (F°) 150# 300# 400# 600# 900# 1500# 2500#
-20 to 100 285 740 985 1480 2220 3705 6170
200 260 680 905 1360 2035 3395 5655
300 230 655 870 1310 1965 3270 5450
400 200 635 845 1265 1900 3170 5280
500 170 605 805 1205 1810 3015 5025
600 140 570 755 1135 1705 2840 4730
650 125 550 730 1100 1650 2745 4575
700 110 530 710 1060 1590 2655 4425
750 95 505 675 1015 1520 2535 4230
800 80 410 550 825 1235 2055 3430
850 65 320 425 640 955 1595 2655
900 50 230 305 460 690 1150 1915
950 35 135 185 275 410 685 1145
1000 20 85 115 170 255 430 715



Socket Weld Flanges Types


ANSI b16.5 Raised Face Socket Weld Flange

ANSI b16.5 Raised Face Socket Weld Flange
DN65, PN20, SCH40, RF, A182 F316 SW Flange


Socket weld flange Dimensions Class 300

Socket weld flange Dimensions Class 300


ASME B16.47 Series a Socket Weld Blind Flanges

ASME B16.47 Series a Socket Weld Blind Flanges
1500#, MSS SP-44, Stainless Steel SW Flange


MSS SP-44 Socket Weld Hub Flange

MSS SP-44 Socket Weld Hub Flange


EN 1092-1 Ring joint Socket weld Flange

EN 1092-1 Ring joint Socket weld Flange


ASME B16.5 Socket Weld Pipe Flange

ASME B16.5 Socket Weld Pipe Flange
PN20, DN50, THK SCH 40, Raised Face, A182 F316 SW Flange


ASME B16.5 SWRF Flange

ASME B16.5 SWRF Flange
PN50, DN25, THK SCH 40, RF End, A182 F304L Socket Welded Flange


PN16 Socket Weld Flange

PN16 Socket Weld Flange


ASME B16.47 Series b Flat Face Socket Weld Flanges

ASME B16.47 Series b Flat Face Socket Weld Flanges


SWRF Flanges Dimensions Class 150

SWRF Flanges Dimensions Class 150


Forged Socket Weld Pipe Flange

Forged Socket Weld Pipe Flange


AWWA C207 Class d Hydraulic Socket Weld Flange

AWWA C207 Class d Hydraulic Socket Weld Flange




ANSI B16.5 Class 150 Socket Weld Flange Dimensions, 150 lb Socket Weld Flange Dimensions, and 150# Socket Weld Flange Dimensions


ANSI, ASME, ASA B16.5 150lb/sq.in. SOCKET WELD FLANGE RF
Nominal Size
 Outside Diam. Thick. of Flange Diam. of Raised Face Diam of Hub at Base Length Thru Hub Diam. of Bore Depth of Socket No. of Holes Diam. of Holes Approx. Weight Pounds Kg
O C R X Y B D
1/2″ in. 3.5 0.44 1.38 1.19 0.62 0.88 0.38 4 0.62 1
mm. 88.9 11.2 35.1 30.2 15.7 22.4 9.7 15.7 0.5
3/4″ in. 3.88 0.5 1.69 1.5 0.62 1.09 0.44 4 0.62 2
mm. 98.6 12.7 42.9 38.1 15.7 27.7 11.2 15.7 1
1″ in. 4.25 0.56 2 1.94 0.69 1.36 0.5 4 0.62 2
mm. 108 14.2 50.8 49.3 17.5 34.5 12.7 15.7 1
1 1/4″ in. 4.62 0.62 2.5 2.31 0.81 1.7 0.56 4 0.62 3
mm. 117.3 15.7 63.5 58.7 20.6 43.2 14.2 15.7 1
1 1/2″ in. 5 0.69 2.88 2.56 0.88 1.95 0.62 4 0.62 3
mm. 127 17.5 73.2 65 22.4 49.5 15.7 15.7 1
2″ in. 6 0.75 3.62 3.06 1 2.44 0.69 4 0.75 5
mm. 152.4 19.1 91.9 77.7 25.4 62 17.5 19.1 2
2 1/2″ in. 7 0.88 4.12 3.56 1.12 2.94 0.75 4 0.75 7
mm. 177.8 22.4 104.6 90.4 28.4 74.7 19.1 19.1 3
3″ in. 7.5 0.94 5 4.25 1.19 3.57 0.81 4 0.75 8
mm. 190.5 23.9 127 108 30.2 90.7 20.6 19.1 4
3 1/2″ in. 8.5 0.94 5.5 4.81 1.25 4.07 8 0.75 11
mm. 215.9 23.9 139.7 122.2 31.8 103.4 19.1 5
4″ in. 9 0.94 6.19 5.31 1.31 4.57 8 0.75 13
mm. 228.6 23.9 157.2 134.9 33.3 116.1 19.1 6
5″ in. 10 0.94 7.31 6.44 1.44 5.66 8 0.88 15
mm. 254 23.9 185.7 163.6 36.6 143.8 22.4 7
6″ in. 11 1 8.5 7.56 1.56 6.72 8 0.88 19
mm. 279.4 25.4 215.9 192 39.6 170.7 22.4 9
8″ in. 13.5 1.12 10.62 9.69 1.75 8.72 8 0.88 30
mm. 342.9 28.4 269.7 246.1 44.5 221.5 22.4 14
10″ in. 16 1.19 12.75 12 1.94 10.88 12 1 43
mm. 406.4 30.2 323.9 304.8 49.3 276.4 25.4 20
12″ in. 19 1.25 15 14.38 2.19 12.88 12 1 64
mm. 482.6 31.8 381 365.3 55.6 327.2 25.4 29
14″ in. 21 1.38 16.25 15.75 2.25 14.14 12 1.12 90
mm. 533.4 35.1 412.8 400.1 57.2 359.2 28.4 41
16″ in. 23.5 1.44 18.5 18 2.5 16.16 16 1.12 98
mm. 596.9 36.6 469.9 457.2 63.5 410.5 28.4 44
18″ in. 25 1.56 21 19.88 2.69 18.18 16 1.25 130
mm. 635 39.6 533.4 505 68.3 461.8 31.8 59
20″ in. 27.5 1.69 23 22 2.88 20.2 20 1.25 165
mm. 698.5 42.9 584.2 558.8 73.2 513.1 31.8 75
24″ in. 32 1.88 27.25 26.12 3.25 24.25 20 1.38 220
mm. 812.8 47.8 692.2 663.4 82.6 616 35.1 100


Class 300 Socket Weld Flange Schedule Dimensions, 300# Socket Weld Flange Dimensions, and Socket Weld Flange Dimensions Class 300


ANSI, ASME, ASA B16.5 300lb/sq.in. SOCKET WELD FLANGE RF
Nominal Size Outside Diam. Thick. of Flange Diam. of Raised Face Diam of Hub at Base Length Thru Hub Diam. of Bore Depth of Socket No. of Holes Diam. of Holes Approx. Weight Pounds Kg
O C R X Y B D
1/2″ in. 3.75 0.56 1.38 1.5 0.88 0.88 0.38 4 0.62 2
mm. 95.3 14.2 35.1 38.1 22.4 22.4 9.7 15.7 1
3/4″ in. 4.62 0.62 1.69 1.88 1 1.09 0.44 4 0.75 3
mm. 117.3 15.7 42.9 47.8 25.4 27.7 11.2 19.1 1
1″ in. 4.88 0.69 2 2.12 1.06 1.36 0.5 4 0.75 3
mm. 124 17.5 50.8 53.8 26.9 34.5 12.7 19.1 1
1 1/4″ in. 5.25 0.75 2.5 2.5 1.06 1.7 0.56 4 0.75 4
mm. 133.4 19.1 63.5 63.5 26.9 43.2 14.2 19.1 2
1 1/2″ in. 6.12 0.81 2.88 2.75 1.19 1.95 0.62 4 0.88 6
mm. 155.4 20.6 73.2 69.9 30.2 49.5 15.7 22.4 3
2″ in. 6.5 0.88 3.62 3.31 1.31 2.44 0.69 8 0.75 7
mm. 165.1 22.4 91.9 84.1 33.3 62 17.5 19.1 3
2 1/2″ in. 7.5 1 4.12 3.94 1.5 2.94 0.75 8 0.88 10
mm. 190.5 25.4 104.6 100.1 38.1 74.7 19.1 22.4 5
3″ in. 8.25 1.12 5 4.62 1.69 3.57 0.81 8 0.88 13
mm. 209.6 28.4 127 117.3 42.9 90.7 20.6 22.4 6
3 1/2″ in. 9 1.19 5.5 5.25 1.75 4.07 8 0.88 17
mm. 228.6 30.2 139.7 133.4 44.5 103.4 22.4 8
4″ in. 10 1.25 6.19 5.75 1.88 4.57 8 0.88 22
mm. 254 31.8 157.2 146.1 47.8 116.1 22.4 10
5″ in. 11 1.38 7.31 7 2 5.66 8 0.88 28
mm. 279.4 35.1 185.7 177.8 50.8 143.8 22.4 13
6″ in. 12.5 1.44 8.5 8.12 2.06 6.72 12 0.88 39
mm. 317.5 36.6 215.9 206.2 52.3 170.7 22.4 18
8″ in. 15 1.62 10.62 10.25 2.44 8.72 12 1 58
mm. 381 41.1 269.7 260.4 62 221.5 25.4 26
10″ in. 17.5 1.88 12.75 12.62 2.62 10.88 16 1.12 81
mm. 444.5 47.8 323.9 320.5 66.5 276.4 28.4 37
12″ in. 20.5 2 15 14.75 2.88 12.88 16 1.25 115
mm. 520.7 50.8 381 374.7 73.2 327.2 31.8 52
14″ in. 23 2.12 16.25 16.75 3 14.14 20 1.25 165
mm. 584.2 53.8 412.8 425.5 76.2 359.2 31.8 75
16″ in. 25.5 2.25 18.5 19 3.25 16.16 20 1.38 190
mm. 647.7 57.2 469.9 482.6 82.6 410.5 35.1 86
18″ in. 28 2.38 21 21 3.5 18.18 24 1.38 250
mm. 711.2 60.5 533.4 533.4 88.9 461.8 35.1 113
20″ in. 30.5 2.5 23 23.12 3.75 20.2 24 1.38 315
mm. 774.7 63.5 584.2 587.2 95.3 513.1 35.1 143
24″ in. 36 2.75 27.25 27.62 4.19 24.25 24 1.62 475
mm. 914.4 69.9 692.2 701.5 106.4 616 41.1 215


Class 600 Socket Weld Flange Standard Dimensions, 600# Socket Weld Flange Dimensions & 600 lb Socket Weld Flange Dimensions


ANSI, ASME, ASA B16.5 600lb/sq.in. SOCKET WELD FLANGE
Nominal Size Outside Diam. Thick. of Flange Diam. of Raised Face Diam of Hub at Base Length Thru Hub Diam. of Bore Depth of Socket No. of Holes Diam. of Holes Approx. Weight Pounds Kg
O C R X Y B D
1/2″ in. 3.75 0.56 1.38 1.5 0.88 0.88 0.38 4 0.62 2
mm. 95.3 14.2 35.1 38.1 22.4 22.4 9.7 15.7 1
3/4″ in. 4.62 0.62 1.69 1.88 1 1.09 0.44 4 0.75 3
mm. 117.3 15.7 42.9 47.8 25.4 27.7 11.2 19.1 1
1″ in. 4.88 0.69 2 2.12 1.06 1.36 0.5 4 0.75 4
mm. 124 17.5 50.8 53.8 26.9 34.5 12.7 19.1 2
1 1/4″ in. 5.25 0.81 2.5 2.5 1.12 1.7 0.56 4 0.75 5
mm. 133.4 20.6 63.5 63.5 28.4 43.2 14.2 19.1 2
1 1/2″ in. 6.12 0.88 2.88 2.75 1.25 1.95 0.62 4 0.88 7
mm. 155.4 22.4 73.2 69.9 31.8 49.5 15.7 22.4 3
2″ in. 6.5 1 3.62 3.31 1.44 2.44 0.69 8 0.75 9
mm. 165.1 25.4 91.9 84.1 36.6 62 17.5 19.1 4
2 1/2″ in. 7.5 1.12 4.12 3.94 1.62 2.94 0.75 8 0.88 13
mm. 190.5 28.4 104.6 100.1 41.1 74.7 19.1 22.4 6
3″ in. 8.25 1.25 5 4.62 1.81 3.57 0.81 8 0.88 16
mm. 209.6 31.8 127 117.3 46 90.7 20.6 22.4 7
3 1/2″ in. 9 1.38 5.5 5.25 1.94 4.07 8 1 21
mm. 228.6 35.1 139.7 133.4 49.3 103.4 25.4 10
4″ in. 10.75 1.5 6.19 6 2.12 4.57 8 1 37
mm. 273.1 38.1 157.2 152.4 53.8 116.1 25.4 17
5″ in. 13 1.75 7.31 7.44 2.38 5.66 8 1.12 63
mm. 330.2 44.5 185.7 189 60.5 143.8 28.4 29
6″ in. 14 1.88 8.5 8.75 2.62 6.72 12 1.12 80
mm. 355.6 47.8 215.9 222.3 66.5 170.7 28.4 36
8″ in. 16.5 2.19 10.62 10.75 3 8.72 12 1.25 115
mm. 419.1 55.6 269.7 273.1 76.2 221.5 31.8 52
10″ in. 20 2.5 12.75 13.5 3.38 10.88 16 1.38 170
mm. 508 63.5 323.9 342.9 85.9 276.4 35.1 77
12″ in. 22 2.62 15 15.75 3.62 12.88 20 1.38 200
mm. 558.8 66.5 381 400.1 91.9 327.2 35.1 91
14″ in. 23.75 2.75 16.25 17 3.69 14.14 20 1.5 230
mm. 603.3 69.9 412.8 431.8 93.7 359.2 38.1 104
16″ in. 27 3 18.5 19.5 4.19 16.16 20 1.62 330
mm. 685.8 76.2 469.9 495.3 106.4 410.5 41.1 150
18″ in. 29.25 3.25 21 21.5 4.62 18.18 20 1.75 400
mm. 743 82.6 533.4 546.1 117.3 461.8 44.5 181
20″ in. 32 3.5 23 24 5 20.2 24 1.75 510
mm. 812.8 88.9 584.2 609.6 127 513.1 44.5 231
24″ in. 37 4 27.25 28.25 5.5 24.25 24 2 730
mm. 939.8 101.6 692.2 717.6 139.7 616 50.8 331


Socket Weld Flange Weight Table


ANSI, ASME, ASA B16.5 150lb/sq.in. SOCKET WELD FLANGE RF
Nominal Size Outside Diam. Thick. of Flanges Diam. of Raised Face Diam of Hub at Base Length Thru Hub Diam. of Bore Depth of Socket No. of Holes Diam. of Holes Diam. of Bolts Diam. of Bolt Circle Approx. Weight Pounds Kg
O C R X Y B D
1/2" in. 3.5 0.44 1.38 1.19 0.62 0.88 0.38 4 0.62 1/2 2.38 1
mm. 88.9 11.2 35.1 30.2 15.7 22.4 9.7 15.7 12.7 60.5 0.5
3/4" in. 3.88 0.5 1.69 1.5 0.62 1.09 0.44 4 0.62 1/2 2.75 2
mm. 98.6 12.7 42.9 38.1 15.7 27.7 11.2 15.7 12.7 69.9 1
1" in. 4.25 0.56 2 1.94 0.69 1.36 0.5 4 0.62 1/2 3.12 2
mm. 108 14.2 50.8 49.3 17.5 34.5 12.7 15.7 12.7 79.2 1
1 1/4" in. 4.62 0.62 2.5 2.31 0.81 1.7 0.56 4 0.62 1/2 3.5 3
mm. 117.3 15.7 63.5 58.7 20.6 43.2 14.2 15.7 12.7 88.9 1
1 1/2" in. 5 0.69 2.88 2.56 0.88 1.95 0.62 4 0.62 1/2 3.88 3
mm. 127 17.5 73.2 65 22.4 49.5 15.7 15.7 12.7 98.6 1
2" in. 6 0.75 3.62 3.06 1 2.44 0.69 4 0.75 5/8 4.75 5
mm. 152.4 19.1 91.9 77.7 25.4 62 17.5 19.1 15.9 120.7 2
2 1/2" in. 7 0.88 4.12 3.56 1.12 2.94 0.75 4 0.75 5/8 5.5 7
mm. 177.8 22.4 104.6 90.4 28.4 74.7 19.1 19.1 15.9 139.7 3
3" in. 7.5 0.94 5 4.25 1.19 3.57 0.81 4 0.75 5/8 6 8
mm. 190.5 23.9 127 108 30.2 90.7 20.6 19.1 15.9 152.4 4
3 1/2" in. 8.5 0.94 5.5 4.81 1.25 4.07 　 8 0.75 5/8 7 11
mm. 215.9 23.9 139.7 122.2 31.8 103.4 　 19.1 15.9 177.8 5
4" in. 9 0.94 6.19 5.31 1.31 4.57 　 8 0.75 5/8 7.5 13
mm. 228.6 23.9 157.2 134.9 33.3 116.1 　 19.1 15.9 190.5 6
5" in. 10 0.94 7.31 6.44 1.44 5.66 　 8 0.88 3/4 8.5 15
mm. 254 23.9 185.7 163.6 36.6 143.8 　 22.4 19.1 215.9 7
6" in. 11 1 8.5 7.56 1.56 6.72 　 8 0.88 3/4 9.5 19
mm. 279.4 25.4 215.9 192 39.6 170.7 　 22.4 19.1 241.3 9
8" in. 13.5 1.12 10.62 9.69 1.75 8.72 　 8 0.88 3/4 11.75 30
mm. 342.9 28.4 269.7 246.1 44.5 221.5 　 22.4 19.1 298.5 14
10" in. 16 1.19 12.75 12 1.94 10.88 　 12 1 7/8 14.25 43
mm. 406.4 30.2 323.9 304.8 49.3 276.4 　 25.4 22.2 362 20
12" in. 19 1.25 15 14.38 2.19 12.88 　 12 1 7/8 17 64
mm. 482.6 31.8 381 365.3 55.6 327.2 　 25.4 22.2 431.8 29
14" in. 21 1.38 16.25 15.75 2.25 14.14 　 12 1.12 1 18.75 90
mm. 533.4 35.1 412.8 400.1 57.2 359.2 　 28.4 25.4 476.3 41
16" in. 23.5 1.44 18.5 18 2.5 16.16 　 16 1.12 1 21.25 98
mm. 596.9 36.6 469.9 457.2 63.5 410.5 　 28.4 25.4 539.8 44
18" in. 25 1.56 21 19.88 2.69 18.18 　 16 1.25 1 1/8 22.75 130
mm. 635 39.6 533.4 505 68.3 461.8 　 31.8 28.6 577.9 59
20" in. 27.5 1.69 23 22 2.88 20.2 　 20 1.25 1 1/8 25 165
mm. 698.5 42.9 584.2 558.8 73.2 513.1 　 31.8 28.6 635 75
24" in. 32 1.88 27.25 26.12 3.25 24.25 　 20 1.38 1 1/4 29.5 220
mm. 812.8 47.8 692.2 663.4 82.6 616 　 35.1 31.8 749.3 100


JIS B2220 10K Socket Weld Flange Dimensions, JIS 5K Blind Flange Dimensions


Nominal Size Outside diameter of flange Diameter of bolt hole centre circle Diamter of bolt hole Number of bolt Nominal desig-nation
of thread of bolt		 Inside diameter Inside diameter Depth of socket Thickness of Flange Diameter of hub Small diameter side Diameter of hub Large diamter side Totle length of flange Radius of fillet
A D C h d0 d(18) S t a b T r
10
15
20		 90
95
100		 65
70
75		 15
15
15		 4
4
4		 M12
M12
M12		 17.8
22.2
27.7		 12.7
16.1
21.6		 10
10
13		 12
12
14		 23
27
33		 26
30
36		 16
16
20		 4
4
4
25
32
40		 125
135
140		 90
100
105		 19
19
19		 4
4
4		 M16
M16
M16		 34.5
43.2
49.1		 27.6
35.7
41.6		 13
13
13		 14
16
16		 41
50
56		 44
53
60		 20
22
24		 4
4
4
50
65
80		 155
175
185		 120
140
150		 19
19
19		 4
4
8		 M16
M16
M16		 61.1
77.1
90.0		 52.9
67.9
80.7		 16
16
16		 16
18
18		 69
86
99		 73
91
105		 24
27
30		 4
4
4

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