Socket weld flange

Socket weld flange

Pipe flanges that are inserted into the pipe through the socket end, and then a fillet weld is applied around the top for proper attachment, is known as a Socket weld flange. They are typically used in small-sized pipes that deal with high pressure. The construction of the Socket Weld Pipe Flanges allow for a smooth bore and better fluid or gas flow inside the pipe. These flanges are available in different material grades, specifications, and sizes. Clients can also get Socket Weld Raised Face Flange, flat face or RTJ face flanges. They generally come with a good fatigue strength.

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Stainless steel socket weld flange suppliers in UAE

Socket weld flange specification


Socket Weld Flange Specification

ASME Standard Manufacturing Size Range Pressure Class
  • ASME B16.5 socket weld flange : NPS ½” – 24”
  • ASME B16.47 socket weld flange (Large size) : NPS 26” – 60”
  • 15 NB – 1200 NB
  • ½” to 48″

Send your drawing to above socket weld flange suppliers & manufacturers for lowest price in Saudi Arabia, Qatar & Oman

  • CL 150
  • CL 300
  • CL 400
  • CL 600
  • CL 900
  • CL 1500
  • CL 2500
  • PN6
  • PN10
  • PN16
  • PN25
  • PN40
  • PN64
Manufacturing Method Face Types and Thickness SW & SWRF Meaning
  • Forged socket weld flange (Strongest choice)
  • Plate
  • Casting
  • CNC machined socket weld flange from bar stock

Genuine socket weld flange suppliers in UAE, these listed manufacturers & distributors have vast experience in exporting stainless steel socket weld flange to South Africa, UK, Egypt, UAE, KSA, Qatar & USA

  • Schedule 10 / 10S to SCH 160
  • FF (Flat face)
  • RF (Raised face)
  • M&F (Male & female)
  • RTJ (Ring type joint)
  • T&G (Tongue & groove)
  • LJ (Lap joint)
  • SW : Socket weld flange
  • SWRF : Socket weld raised face flange
Inspection Plan Marking and Packaging MTC & Quality Test
  • Outer and Inner Diameter of socket weld flange body
  • Diameter of forged socket weld flange bolt circle & bolt hole
  • Alignment and straightness of socket weld flat face flange bolt hole
  • Hub Diameter
  • Thickness of weld end
  • Bore (if applicable)
  • Sizes
  • Material specification
  • Pressure Rating Designation
  • Dimensional standard (ASME B16.5/ 16.47 etc)
  • Face type
  • Heat code
  • Production code of socket weld flange manufacturers
  • Manufacturer’s name, brand logo
  • PMI
  • Hardness test
  • MTC EN 10204 type 3.1
  • NACE MR0175
  • ISO 15156
  • Tensile test
  • Impact test
  • Shell pressure test
  • Visual inspection for A105 socket weld flange surfaces, welding & holes

 

Cut out all intermediaries and direct buy from manufacturers of carbon steel SW flange to save up to 40%

Cast, plate & forged socket weld flange material

Forged Plate Cast
Carbon Steel Socket Weld Flange
ASTM A105 socket weld flange ASTM A515 Grade 60
ASTM A105N ASTM A216 Grade WCB & WCC
ASTM A350 Grade LF2 ASTM A352 Gr LCB & LCC
ASTM A350 Gr LF3 ASTM A352 LC3
ASTM A350 Gr LF6
LTCS ASTM A352 LCC
ASTM A694 F42 ASTM A572 Gr 42
ASTM A694 F46
ASTM A694 F50 ASTM A572 Gr 50
ASTM A694 F52
ASTM A694 F60 ASTM A572 Grade 60
ASTM A694 F65 ASTM A572 Grade 65
ASTM A694 F70 ASTM A572 Grade 70
S235JRG2, P250GH, 1.4541, 1.4571
Alloy Steel Socket Weld Flange
ASTM A182 Grade F5A & F5 ASTM A387 Grade 5 ASTM A217 Gr C5
ASTM A182 F1 Alloy Steel
ASTM A182 F9 Alloy Steel ASTM A387 Grade 9 ASTM A217 Gr C12
ASTM A182 F11 Alloy Steel ASTM A387 Grade 11 ASTM A217 Gr WC6
ASTM A182 F22 Alloy Steel ASTM A387 Gr 22 ASME/ ASTM A217 Grade WC9
ASTM A182 F91 Alloy Steel ASTM A387 Gr 91 ASTM A217 Grade C12A
Stainless Steel Socket Weld Flange
ASTM A182 F304 socket weld flange ASTM A240 304 ASTM A351 CF8
ASTM A182 304L ASTM A240 304L ASTM A351 CF3
ASTM A182 310 ASTM A240 310 ASTM A351 CK20
ASTM A182 F316 socket weld flange ASTM A240 316 ASTM A351 CF8M
ASTM A182 316L ASTM A240 316L ASTM A351 CF3M
ASTM A182 316LN ASTM A240 316LN ASTM A351 CF3MN
ASTM A182 317 ASTM A240 317 ASTM A351 CG8M
ASTM A182 317 ASTM A240 317L ASTM A351 CG3M
ASTM A182 F347 ASTM A240 347 ASTM A351 CF8C
ASTM A182 F321 ASTM A240 321
ASTM A182 F904L ASTM A240 904L ASTM A351 CN2MCuN
ASTM A182 F6A ASTM A217 CA15
ASTM B462 UNS N08020 ASTM B 463 N08020 ASTM A351 CN7M
Duplex / Super Duplex Socket Weld Flange
ASTM A182 F51 ASTM A240 UNS S31803 ASTM A351 CD3MN
ASTM A182 F53 ASTM A240 UNS S32750 A890 GR.5A CE3MN*
ASTM A182 F55 ASTM A240 UNS S32760 A890 GR.6A CD3MWCuN
Al 6XN ASTM A240 UNS N08367 ASTM A351 CN3MN
ASTM A182 F44 ASTM A240 UNS S31254 ASTM A351 CK3MCuN
ASTM A182 F60 ASTM A240 UNS S32205
Titanium Socket Weld Flange
ASTM B381 Grade F2 ASTM B265 UNS R50400 ASTM B367 GR.C2
ASTM B381 Grade F3 ASTM B265 UNS R50550 ASTM B367 GR.C3
Copper Socket Weld Flange
ASTM B283 UNS C37700 ASTM B152 UNS C10100 ASTM B22/B22M
ASTM B124 UNS C63000
Copper Nickel Socket Weld Flange
Copper nickel 90/10 : ASTM B151 UNS C70600 ASTM B122 CU-Ni 90/10 ASTM B466 CuNi10Fe 1Mn
Copper nickel 70/30 : ASTM B151 UNS C71500 ASTM B122 CU-Ni 70/30 ASTM B466 CuNi30Mn1FE
EEMUA 234 : UNS 7060X
EEMUA 145
EN 1652/ 12420/124491
Ductile Iron Socket Weld Flange
ASTM B381 GR.F2 ASTM B367 GR.C2
Nickel Alloy Socket Weld Flange
Inconel 800 – ASTM B564 ASTM B409 UNS N08800 A484 CU 5MCuC*
Inconel 825 – ASTM B564 ASTM B409 UNS N08825 A484 CU 5MCuC*
Inconel 600 – ASTM B564 ASTM B168 UNS N06600 A494 CY40*
Inconel 601 – ASTM B564 ASTM B168 UNS N06601
Inconel 625 Socket Weld flange – ASTM B564 ASTM B168 UNS N06625 A494 CW6MC*
Monel 400 Socket Weld flange – ASTM B564 ASTM B127 UNS N04400 A494 M35-1
Monel K500 – ASTM B564 ASTM B127 UNS N05500 A494 M30H
Hastelloy C-22 – ASTM B366 ASTM B575 UNS N06022 ASTM A494 CX2MW
Hastelloy C 276 Socket Weld flange – ASTM B366 ASTM B575 UNS N10276 ASTM A494 CW12MW

Socket Weld Flange Material

Socket weld flange types

Alloy steel socket weld flange

Alloy steel socket weld flange

ASTM A182 F304 SW flange

ASTM A182 F304 SW flange

Duplex steel SWRF flange

Duplex steel SWRF flange

Stainless steel socket weld flange

Stainless steel socket weld flange

ASTM A105 socket weld raised face flange

ASTM A105 socket weld raised face flange

ASME B16.5 socket welding flange

ASME B16.5 socket welding flange

Carbon steel SW RF flange

Carbon steel SW RF flange

ASTM A182 F316 socket neck flange

ASTM A182 F316 socket neck flange

Super duplex FFSW flange

Super duplex FFSW flange

Socket weld orifice flanges

Socket weld orifice flanges

SAE socket weld flange

SAE socket weld flange

SS socket welding neck flange

SS socket welding neck flange

  • Forged socket weld flange
  • Cast socket weld flange
  • Socket weld plate flange (made from plate)
  • CNC machined socket weld flange

 

Isometric symbol of carbon steel socket weld flange

Isometric Symbol Image Flange
Isometric symbol of carbon steel socket weld flange socket weld flange image Socket weld flange

 

SW flange International Standards

USA Europe Germany Japan
  • API 605
  • CL 125 (Light weight)
  • AWWA C207
  • MSS SP44
  • ASME B16.5 socket weld flange
  • ANSI B16.5
  • ANSI B16.48
  • ASA
  • ANSI B16.47 (API 605)
  • ANSI B16.36
  • AWWA
  • BS EN 1759
  • ISO 7005
  • PN 10 to PN400
  • DIN
  • JIS
  • JIS B2220
Australia & UK Europe Russia Italy
  • BS 10
  • BS EN 1092-1
  • BS EN 1092-2
  • BS EN 1092-3
  • Ghost
  • UNI 6091
  • UNI 2276
South Korean and China Malaysia France Canada
  • GB/T 9112 / 9119 (China)
  • KS B1503 (South Korean)
  • MS 816
  • MS 253
  • MS 816
  • MS 253
  • NF E 29-200
  • NF E 29-203
  • ANSI B16.47 Series A & B
  • CSA B16.5

 

ASME B16.5 socket weld flange face types

ASME B16.5 socket weld flange face types

 

Type Sealing way of socket weld pipe flange
FF Flat face
SWRF Socket weld raised face
LJ Lap joint
RTJ Ring Type Joint
M&F Male & female
T&G Tongue and Groove

 

Check dimensions

 

Germany DIN standard of socket weld flange

 

Raised face socket weld flange height

Class Of Raised Face Socket Weld Flange Height
150 LBS 1/6″
300 LBS 1/6″
400 LBS 1/4″
600 LBS 1/4″
900 LBS 1/4″
1500 LBS 1/4″
2500 LBS 1/4″

 

Stainless steel socket weld flange pressure Class

ASME B16.5 socket weld flange
  • 150 LBs
  • 250 LBs
  • 300 LBs
  • 350 LBs
  • 400 LBs
  • 600 LBs
  • 900 LBs
  • 1500 LBs
  • 2500 LBs
SANS/SABS 1123 socket weld flange
  • Class 600/3
  • 1000/3
  • 1600/3
  • 2500/3
  • 4000/3
KS1503/ JIS B2220 socket weld flange
  • 5K
  • 10K
  • 16K
  • 20K
  • 30K

 

British BS standard of SWRF flanges

  • BS 10
  • BS 4504

 

Socket weld flange dimensions

Socket weld flange dimensions

 

Normal pipe size (NPS) 1/2 socket weld flange
Class CL 150 CL 300 CL 600 CL 900 CL 1500
Diameter Of (A) 30 38 38 38
DIA D 90 95 95 120
Thickness Of B 11.2 14.3 20.7 28.7
DIA G 35.1 35.1 35.1 35.1
Diameter Of (K) 60.3 66.7 66.7 82.6
H 15.6 22.6 28.4 38.4
Number Of L 4 4 4 4
DIA L 15.9 15.9 15.9 22.2
NPS 3/4 socket weld flange
Class 150# 300# 600# 900# 1500#
Diameter Of (A) 38 48 48 44
DIA D 100 115 115 130
Thickness Of B 12.8 15.9 22.3 31.8
DIA G 42.9 42.9 42.9 42.9
Diameter Of (K) 69.9 82.6 82.6 88.9
H 15.6 25.6 31.4 41.4
Number Of L 4 4 4 4
DIA L 15.9 19.1 19.1 22.2
NPS 1 socket weld flange
Class 150# 300# 600# 900# 1500#
Diameter Of (A) 49.2 54 54 52
DIA D 110 125 125 150
Thickness Of B 14.3 17.5 23.9 35
DIA G 50.8 50.8 50.8 50.8
Diameter Of (K) 79.4 88.9 88.9 101.6
H 17.6 26.6 33.4 47.4
Number Of L 4 4 4 4
DIA L 15.9 19.1 19.1 25.4
NPS 1.1/4 socket weld flange
Class 150# 300# 600# 900# 1500#
Diameter Of (A) 59 64 64 64
DIA D 115 135 135 160
Thickness Of B 15.9 19.1 27.1 35
DIA G 63.5 63.5 63.5 63.5
Diameter Of (K) 88.9 98.4 98.4 111.1
H 20.6 26.6 35.4 47.4
Number Of L 4 4 4 4
DIA L 15.9 19.1 19.1 25.4
NPS 1.1/2 socket weld flange
Class 150# 300# 600# 900# 1500#
Diameter Of (A) 65 70 70 70
DIA D 125 155 155 180
Thickness Of B 17.5 20.7 28.7 38.2
DIA G 73.2 73.2 73.2 73.2
Diameter Of (K) 98.4 114.3 114.3 123.8
H 22.6 30.6 38.4 50.4
Number Of L 4 4 4 4
DIA L 15.9 22.2 22.2 28.6
NPS 2 socket weld flange
Class 150# 300# 600# 900# 1500#
Diameter Of (A) 78 84 84 105
DIA D 150 165 165 215
Thickness Of B 19.1 22.3 31.8 44.5
DIA G 91.9 91.9 91.9 91.9
Diameter Of (K) 120.7 127 127 165.1
H 25.6 33.6 43.4 63.4
Number Of L 4 8 8 8
DIA L 19.1 19.1 19.1 25.4
NPS 2.1/2 socket weld flange
Class 150# 300# 600# 900# 1500#
Diameter Of (A) 90 100 100 125
DIA D 180 190 190 245
Thickness Of B 22.3 25.5 35 47.7
DIA G 104.6 104.6 104.6 104.6
Diameter Of (K) 139.7 149.2 149.2 190.5
H 28.6 38.6 47.4 70.4
Number Of L 4 8 8 8
DIA L 19.1 22.2 22.2 28.6

 

Dimensional tolerances of socket weld pipe flange

O.D. I.D. O.D. of Hub Counter bore Diameter
  • ≤ 24 = 1.6 mm
  • >> 24 = ± 3.2 mm
  • ≤ 10 = ± 0.8MM
  • ≥ 12 = + 1.6 mm / – 0 mm
  • ≤ 12 = + 2.4 mm / – 1.6 mm
  • ≥ 14 = ± 3.2 mm
  • Same as for (I.D.) Inner Diameter
Drilling Bolt Circle (B.C.) Eccentricity Wall Thickness Length thru Hub
  • (bolt circle) B.C. = 1.6 MM
  • spacing of bolt hole = ± 0.8 MM
  • ≤ 2.1/2 = 0.8 mm (maximum)
  • ≥ 3 = 1.6 mm (maximum)
  • ≤ 18 = + 3.2 mm / – 0
  • ≥ 20 = + 4.8 mm / – 0
  • ≤ 18 = + 3.2 mm / – 0.8 MM
  • ≥ 20 = + 4.8 mm / – 1.6 millimeter
Diameter Of Contact Face
  • (RF) 1.6 mm = ± 0.8 millimeter
  • Male & Female and Tongue & Groove = ± 0.4 millimeter

 

Japanese JIS standard of socket weld reducing flange

 

Size chart of socket weld neck flange

Number of Bolts
Size in Inch Size in MM Class 150 Class 300 Class 400 Class 600 Class 900 Class 1500
1/2 15 4 4 4 4
3/4 20 4 4 4 4
1 25 4 4 4 4
1 1/4 32 4 4 4 4
1 1/2 40 4 4 4 4
2 50 4 8 8 8
2 1/2 65 4 8 8 8
3 80 4 8 8 8

 

Temperature range of alloy steel socket weld flange

Alloy Grade UNS Forged socket weld flange Casting socket weld flange DIN WNR Temperature range
Moly steel socket weld flange C-1/2Mo K12822 ASTM A182 Gr F1 cl2 ASTM A217-WC1 15M03 1.5415
  • Up to 470ºC*
  • 875ºF
Alloy steel chrome moly socket weld flange 1.1/4Cr-1/2Mo K11572 ASTM A182 Gr F11 cl2 ASTM A217 WC6 13CRM044 1.7335
  • Up to 593ºC
  • 1100ºF
2.1/4Cr-1Mo K21590 ASTM A182 Grade F22 cl3 ASTM A217 Gr WC9 10CRM0910 1.7380
  • Up to 593ºC
  • 1100ºF
5Cr-1/2Mo K41545 ASTM A182 Grade F5/F5a ASTM A217 Gr C5 12CRMO195 1.7362
  • High temp boiler/ refinery application
9Cr-1Mo K90941 A182 Gr F9 A217-C12 X 12 CrMo 9 1 1.7386
  • High temp erosive refinery application
9Cr-1Mo-V A182 Gr F91 A217-C12A X 10 CrMoVNb 9 1 1.4903
  • High pressure boilers
Alloy steel socket weld flange AISI 4130 socket weld flange G41300  1.7218
  • 899 to 927°C
  • 1650 to 1700°F

 

Italian UNI standard of forged socket weld flange

  • UNI 2276 PN6

 

Specification of copper nickel socket weld flange

Standard Sizes OD & Drilling Diameter Large Sizes
  • 16MM To 914MM
  • ½” To 36″
  • 16MM – 610MM
  • ½” – 24″
  • 24″ – 36″
  • 711 To 914 MM

Accoding to MSS SP-44

Pressure Class Of Copper Nickel Socket Weld Pipe Flange Composite flange Recommended Hardware
  • 16 Bar
  • 20 Bar
  • ASTM A105N
  • Welded UNS C70620 copper nickel disk
  • As per ANSI/ASME B16.5
Grade UNS Number Standard
  • Copper Nickel 90/10
  • Copper Nickel 70/30
  • UNS C70620
  • UNS 7060X
  • CW352H
  • EN 124491
  • WL 2.1972
  • EN 12420
  • MIL-T-16420K
  • EEMUA 234/3-6
  • EEMUA 145
  • DIN 86019
  • EN 1652
  • ASTM B467
  • EEMUA 234
  • ASTM B4662
Coating Types Applications
  • Hot dipped galvanising
  • Composite socket weld flanges
  • Solid socket weld flanges
  • Petroleum plants
  • Offshore
  • Marine applications
  • Seawater
  • Petrochemical

 

SWRF flange weight chart & dimensions

Buy alloy steel socket weld pipe flanges as per ISA, ISO, British & American standards

The Sae Socket weld flange shows high pressure resistance for most sizes. It has a continuous pressure resistance for up to the level of 6000 PSI. It can resist a working pressure of up to 400 bar.

The benefits of Asme B16.5 Swrf Flanges are:

  • Their design enables easy and proper alignment.
  • They are less prone to leakage
  • As welding is done outside, there is no chance of the weld metal to flow inside the pipe bore.

A significant disadvantage of the Alloy Steel Swrf Flange is that they are not considered to be a high integrity joint as the weld is quite difficult to prove. They are only suitable for low to medium classes.

A Stainless Steel Socket weld flange is a pipe attachment detail that comes with a socket and counter bore.

Now no need to pay more, meet duplex steel socket weld raised face flange and SAE SWRF flange manufacturers in the middle east countries

To understand the strength of Carbon Steel Socket weld flange before purchasing, one should check its pressure class and size.

Verified socket weld orifice flange suppliers in Dubai who can machine to exact specifications in various finishes as per ANSI/ ASME b16.5

The A350 Lf2 Sw Flanges need a gap of around ⅙ inches at the bottom of the pipe which will allow socket access and thermal expansion. But sometimes, the gap can lead to the problem of over stress which might crack the filet weld of the fitting.