Expander flange

expander flange

Flanges are used for a number of reasons and purposes in the piping system. They can be used in combination with other fittings such as sockets and bends. A few flanges are made to combine two functions together, like the Expander flange. It acts are an expander, in other words, it acts as a reducer when connected in the opposite direction. Instead of having a weld neck flange and a reducer, the expander flange serves the purpose without the need for an extra connection and a fitting.

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Stainless steel expander flange suppliers in UAE

Expander flange specification

Expander Flange Specification

Manufacturing Standard Standard Size Range Pressure Class
  • ASME B16.5 expander flange : NPS ½” – 24”
  • ½ – 48 inch
  • 15 – 1200 NB

Send your drawing to above expander flange suppliers & manufacturers for best price

  • CL 150
  • CL 300
  • CL 400
  • CL 600
Manufacturing Method Thickness Other Name
  • Plate
  • CNC machined expander flange from bar stock
  • Casting
  • Forged expander flange (Strongest choice)

South Africa, Oman, US, Egypt, and Saudi Arabia have been receiving expander flange from these suppliers for more than five years. There is physical proof of them.

  • Schedule 5S to SCH XXS
  • Expansion flange
Delivery check points Marking and Packaging Quality test & MTC
  • Diameter of expander flange bolt circle & bolt hole
  • Straightness and alignment of expander weld neck flange bolt hole
  • Hub Diameter
  • Thickness
  • Outer & Inner Diameter of expander neck flange body
  • Material specification
  • Pressure Rating Designation
  • Bore (if applicable)
  • Dimensional standard (ASME B16.5)
  • Sizes
  • Heat code
  • Manufacturer’s name, brand logo
  • Face type
  • Production code of expander flange manufacturers
  • ISO 15156
  • Impact test
  • Visual inspection for stainless steel 904L expander flange surfaces, welding & holes
  • MTC EN 10204 type 3.1
  • Tensile test
  • NACE MR0175
  • PMI
  • Shell pressure test
  • Hardness test
Face Types Surface Finish Bolts Holes
  • Raised face – (RF)
  • Flat face – (FF)
  • Ring type joint – (RTJ)
  • Stock finish
  • Smooth Finish
  • Spiral serrated
  • Serrated finish
  • 8 To 24

 

Check carbon steel expander flange and alloy steel expander slip on flange price per kg in Dubai

Plate & forged expander flange material grade

Forged Plate
Stainless Steel Expander Flange
ASTM A182 F304 expander flange ASTM A240 304
ASTM A182 304L ASTM A240 304L
ASTM A182 310 ASTM A240 310
ASTM A182 F316 expander flange ASTM A240 316
ASTM A182 316L ASTM A240 316L
ASTM A182 316LN ASTM A240 316LN
ASTM A182 317 ASTM A240 317
ASTM A182 317 ASTM A240 317L
ASTM A182 F347 ASTM A240 347
ASTM A182 F321 ASTM A240 321
ASTM A182 F904L ASTM A240 904L
ASTM A182 F6A
ASTM B462 UNS N08020 ASTM B 463 N08020
Copper Expander Flange
ASTM B283 UNS C37700 ASTM B152 UNS C10100
ASTM B124 UNS C63000
Ductile Iron Expander Flange
ASTM B381 GR.F2
Carbon Steel Expander Flange
ASTM A105 expander flange ASTM A515 Grade 60
ASTM A105N CS
ASTM A350 Gr LF2 (CL 1& CL2)
ASTM A350 Gr LF3
ASTM A350 Gr LF6
LTCS
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 Expander Flange
ASTM A182 Grade F5A & F5 ASTM A387 Grade 5
ASTM A182 F1
ASTM A182 F9 ASTM A387 Grade 9
ASME/ ASTM A182 F11 ASTM A387 Grade 11
ASTM A182 F22 ASTM A387 Gr 22
ASTM A182 F91 ASTM A387 Gr 91
Duplex (DSS) Expander Flange
ASTM A182 F51 ASTM A240 UNS S31803
ASTM A182 F53 ASTM A240 UNS S32750
ASTM A182 F55 ASTM A240 UNS S32760
Al 6XN ASTM A240 UNS N08367
ASTM A182 F44 ASTM A240 UNS S31254
ASTM A182 F60 ASTM A240 UNS S32205
Titanium Expander Flange
ASTM B381 Grade F2 ASTM B265 UNS R50400
ASTM B381 Grade F3 ASTM B265 UNS R50550
Copper Nickel Expander Flange
Copper nickel 90/10 : ASTM B151 UNS C70600 ASTM B122 CU-Ni 90/10
Copper nickel 70/30 : ASTM B151 UNS C71500 ASTM B122 CU-Ni 70/30
EEMUA 234 : UNS 7060X
EEMUA 145
EN 1652/ 12420/124491
Nickel Alloy Expander Flange
Inconel 800 – ASTM B564 ASTM B409 UNS N08800
Inconel 825 – ASTM B564 ASTM B409 UNS N08825
Inconel 600 – ASTM B564 ASTM B168 UNS N06600
Inconel 601 – ASTM B564 ASTM B168 UNS N06601
Inconel 625 expander flange – ASTM B564 ASTM B168 UNS N06625
Monel 400 expander flange – ASTM B564 ASTM B127 UNS N04400
Monel K500 – ASTM B564 ASTM B127 UNS N05500
Hastelloy C-22 – ASTM B366 ASTM B575 UNS N06022
Hastelloy C276 expander flange – ASTM B366 ASTM B575 UNS N10276

Expander Flange Material

Popular types of expander flange

  • CNC machined expander flange
  • Forged expander flange
  • Plate expander flange (made from plate)
  • Cast expander flange

 

Face types of ASME B16.5 expander flange

Face types of ASME B16.5 expander flange

 

Type Expander Flange Sealing Way
RTJ Ring Type Joint expander flange
FF Flat face expander flange
RF Raised face expander flange

 

Check dimensions

 

Copper nickel expander flange specification

Sizes Of Cu-Ni Expander Flange Cupro Nickel Expansion Flange Outer & Drilling Diameter Copper Nickel Hydraulic Flange Expander Large Size
  • 16MM To 914MM
  • ½” To 36″
  • 16MM – 610MM
  • ½ inch – 24 inch
  • 711 To 914MM
  • 24″ – 36″

Accoding to MSS SP-44

CUNI Expander Weld Neck Flange Pressure Class in Bar Composite UNS C70600 Expander Neck Flange Are Manufactured From Copper Nickel Expander Long Neck Flange Recommended Hardware
  • 16 Bar
  • 20 Bar
  • ASTM A105N
  • Welded UNS C70620 copper nickel disk
  • As per ANSI/ASME B16.5
Top Selling Of Cu-Ni Expander Long Flange Coating Two Types Of C70600 Expander High Hub Flange Application Of Copper Nickel C70620 Expander Pipe Flange
  • Hot dipped galvanising
  • Composite expander flange
  • Solid expander flange
  • Petroleum plants
  • Seawater
  • Offshore
  • Marine applications
  • Petrochemical
Grade UNS Number Standard
  • Copper nickel 90/10
  • 70/30 Copper nickel
  • UNS 7060X
  • UNS C70600
  • UNS C71500
  • UNS C70620
  • ASTM B4662
  • EN 1652
  • EEMUA 145
  • EN 124491
  • CW352H
  • EN 12420
  • EEMUA 234
  • MIL-T-16420K
  • ASTM B467
  • WL 2.1972
  • DIN 86019
  • EEMUA 234/3-6

 

Alloy steel expander flange temperature range

Alloy Grade UNS Forged expander flange Casting expander flange DIN WNR Temperature range
Moly steel expander flange C-1/2Mo K12822 ASTM A182 Gr F1 cl2 ASTM A217-WC1 15M03 1.5415
  • Up to 470ºC*
  • 875ºF
Alloy steel chrome moly expander 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 expander flange AISI 4130 expander flanges G41300 ASTM A182 ASTM A217/M  1.7218
  • 899 to 927°C
  • 1650 to 1700°F

 

International standards of expansion flange

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

 

Raised face expander flange height chart

Class Height Of RF Expander Flange
#150 1/6″
#300 1/6″
#400 1/4″
#600 1/4″
#900 1/4″
#1500 1/4″
#2500 1/4″

 

Hydraulic flange expander pressure class

ASME B16.5 expander flange
  • 150#
  • 300#
  • 600#
KS1503/ JIS B2220 expander flange
  • 5K
  • 10K
  • 16K
  • 20K
  • 30K
SANS/SABS 1123 expander flange
  • Class 600/3
  • 1000/3
  • 1600/3
  • 2500/3
  • 4000/3
EN 1092-1 expander flange
  • PN6
  • PN10
  • PN16
  • PN25
  • PN40
  • PN63
  • PN100

 

Expander flange weight

Weight in LB

.

NPS 150# 300# 600#
2 x 3 6 9 12
2 x 4 6 9 12
3 x 4 11 15 23
4 x 6 15 25 42
6 x 8 24 42 81
8 x 10 39 67 117
8 x 12 39
10 x 12 52 91 189
10 x 14 52
12 x 14 80 138 226
12 x 16 80
14 x 16 120 186 347
14 x 18 120
18 x 20 140 305 555
18 x 24 140
20 x 24 170 378 690
24 x 30 260 545 977

 

Expander flange dimensions

Class 150

Expander flange dimensions

 

Normal Pipe Size O.D. Of (A) Bolt Holes Diameter Diameter Of Bolt Circle (P) Hub Length Of
(K)
Taper Compound (CT) Slopeat Bevel
SB
Bolt Holes Number Type Of Design Diameter of RF (B) Wall Thickness of (C) Bore Diameter Of D Bore Diameter Of
D2
Dia. Of Hub at Weld
(H)
Dia. of Hub at Base (J)
2 x 3 6 3/4 4 3/4 2 1/2 16° 4 A 3 5/8 3/4 2.067 3.068 3.500 3 1/16
2 x 4 6 3/4 4 3/4 3 5/8 1/2 29° * 4 C 3 5/8 3/4 2.067 4.026 4.500 3 1/16
3 x 4 7 1/2 3/4 6 2 3/4 15° 4 A 5 15/16 3.068 4.026 4.500 4 1/4
4 x 6 9 3/4 7 1/2 3 1/4 1/2 30° * 8 C 6 3/16 15/16 4.026 6.065 6.625 5 5/16
6 x 8 11 7/8 9 1/2 4 1/2 28° * 8 C 8 1/2 1 6.065 7.981 8.625 7 9/16
8 x 10 13 1/2 7/8 11 3/4 4 1/2 29° * 8 C 10 5/8 1 1/8 7.981 10.020 10.750 9 11/16
8 x 12 13 1/2 7/8 11 3/4 6 1/2 29° * 8 C 10 5/8 1 1/8 7.981 12.000 12.750 9 11/16
10 x 12 16 1 14 1/4 3 15/16 1/2 39° * 12 C 12 3/4 1 3/16 10.020 12.000 12.750 12
10 x 14 16 1 14 1/4 5 7/16 5/8 30° * 12 C 12 3/4 1 3/16 10.020 13.250 14.000 12
12 x 14 19 1 17 4 1/2 11° 12 D 15 1 1/4 12.000 13.250 14.000 14 3/8
12 x 16 19 1 17 4 13/16 5/8 30° * 12 C 15 1 1/4 12.000 15.250 16.000 14 3/8
14 x 16 21 1 1/8 18 3/4 5 15° 12 A 16 1/4 1 3/8 13.250 15.250 16.000 15 3/4
14 x 18 21 1 1/8 18 3/4 5 11/16 5/8 30° * 12 C 16 1/4 1 3/8 13.250 17.250 18.000 15 3/4
18 x 20 25 1 1/4 22 3/4 5 1/2 14° 16 A 21 1 9/16 17.250 19.250 20.000 19 7/8
18 x 24 25 1 1/4 22 3/4 8 13/16 5/8 28° * 16 C 21 1 9/16 17.250 23.250 24.000 19 7/8
20 x 24 27 1/2 1 1/4 25 6 7/16 5/8 30° * 20 C 23 1 11/16 19.250 23.250 24.000 22
24 x 30 32 1 3/8 29 1/2 8 11/16 3/4 30° * 20 C 27 1/4 1 7/8 23.250 29.250 30.000 26 1/8

 

Class 300 expander flange dimensions

Class 300 expander flange dimensions

 

Normal Pipe Size O.D. Of (A) Bolt Holes Diameter Diameter Of Bolt Circle (P) Hub Length Of
(K)
Taper Compound (CT) Slopeat Bevel
SB
Bolt Holes Number Type Of Design Diameter of RF (B) Wall Thickness of (C) Bore Diameter Of D Bore Diameter Of
D2
Dia. Of Hub at Weld
(H)
Dia. of Hub at Base (J)
2 x 3 6 1/2 3/4 5 2 3/4 15° 8 A 3 5/8 7/8 2.067 3.068 2.375 3 5/16
2 x 4 6 1/2 3/4 5 2 3/4 1/2 29° * 8 C 3 5/8 7/8 2.067 4.026 2.375 3 5/16
3 x 4 8 1/4 7/8 6 5/8 3 1/8 13° 8 D 5 1 1/8 3.068 4.026 3.500 4 5/8
4 x 6 10 7/8 7 7/8 3 3/8 1/2 30° * 8 C 6 3/16 1 1/4 4.026 6.065 4.500 5 3/4
6 x 8 12 1/2 7/8 10 5/8 3 7/8 1/2 22° * 12 B 8 1/2 1 7/16 6.065 7.981 6.625 8 1/8
8 x 10 15 1 13 4 3/8 20° 12 A 10 5/8 1 5/8 7.981 10.020 8.625 10 1/4
10 x 12 17 1/2 1 1/8 15 1/4 4 5/8 20° 16 A 12 3/4 1 7/8 10.020 12.000 10.750 12 5/8
12 x 14 20 1/2 1 1/4 17 3/4 5 1/8 11° 16 D 15 2 12.000 13.250 12.750 14 3/4
14 x 16 23 1 1/4 20 1/4 5 5/8 16° 20 D 16 1/4 2 1/8 13.250 15.250 14.000 16 3/4
16 x 18 25 1/2 1 3/8 22 1/2 5 3/4 16° 20 D 18 1/2 2 1/4 15.250 17.250 16.000 19
18 x 20 28 1 3/8 24 3/4 6 1/4 14° 24 D 21 2 3/8 17.250 19.250 18.000 21
20 x 24 30 1/2 1 3/8 27 6 3/8 5/8 29° * 24 B 23 2 1/2 19.250 23.250 20.000 23 1/8
24 x 30 36 1 5/8 32 6 5/8 3/4 30° * 24 B 27 1/4 2 3/4 23.250 29.250 24.000 27 5/8

 

Class 600 expander flange dimensions

Class 600 expander flange dimensions

 

Normal Pipe Size O.D. Of (A) Bolt Holes Diameter Diameter Of Bolt Circle (P) Hub Length Of
(K)
Taper Compound (CT) Slopeat Bevel
SB
Bolt Holes Number Type Of Design Diameter of RF (B) Wall Thickness of (C) Bore Diameter Of D Bore Diameter Of
D2
Dia. Of Hub at Weld
(H)
Dia. of Hub at Base (J)
2 x 3 6 1/2 3/4 5 2 7/8 14° 8 A 3 5/8 1 * * 2.375 3 5/16
2 x 4 6 1/2 3/4 5 2 7/8 1/2 29° ** 8 C 3 5/8 1 * * 2.375 3 5/16
3 x 4 8 1/4 7/8 6 5/8 3 1/4 13° 8 D 5 1 1/4 * * 3.500 4 5/8
4 x 6 10 3/4 1 8 1/2 4 21° 8 A 6 3/16 1 1/2 * * 4.500 6
6 x 8 14 1 1/8 11 1/2 4 5/8 21° 12 D 8 1/2 1 7/8 * * 6.625 8 3/4
8 x 10 16 1/2 1 1/4 13 3/4 5 1/4 19° 12 D 10 5/8 2 3/16 * * 8.625 10 3/4
10 x 12 20 1 3/8 17 6 16° 16 D 12 3/4 2 1/2 * * 10.750 13 1/2
12 x 14 22 1 3/8 19 1/4 6 1/8 10° 20 D 15 2 5/8 * * 12.750 15 3/4
14 x 16 23 3/4 1 1/2 20 3/4 6 1/2 15° 20 D 16 1/4 2 3/4 * * 14.000 17
16 x 18 27 1 5/8 23 3/4 7 14° 20 D 18 1/2 3 * * 16.000 19 1/2
18 x 20 29 1/4 1 3/4 25 3/4 7 1/4 14° 20 D 21 3 1/4 * * 18.000 21 1/2
20 x 24 32 1 3/4 28 1/2 7 1/2 5/8 28° ** 24 E 23 3 1/2 * * 20.00 24
24 x 30 37 2 33 8 3/4 28° ** 24 C 27 1/4 4 * * 24.00 28 1/4

 

Surface treatment of expander high hub flange

  • Yellow/ black paint
  • Anti-rust oil
  • Galvanized
  • Epoxy coating

 

Compare prices and quotes from multiple duplex steel expanding slip on flange manufacturers in the middle east

A350 lf2 expander flanges of other specifications have specific dimensions. You can find out the dimension according to the specification table presented for each flanges specification. 304 stainless steel expander flange can range from ½ inch to 48 inches. To check if a flanges has the right dimension according to the standard specification, you can measure a flange manually and check against the specification table.

Stainless steel expander flanges is used mostly in compressors, pumps, and valves in any piping system. The uses are in the oil and gas, offshore and onshore pipes, pulp and paper, chemical, and water supply lines. There are specifications for the expander flanges and the flanges range from 2 inches to 30 inches. The specifications are according to the ASME, ANSI, EN, DIN, and BS standards.

Asme b16.5 expander flanges has the dimension specifications. You need to know the requirements of your application first. Then you need to decide on the factors that have to be in your flanges. You need to know the flanges type you want to use. If you want to use the Alloy steel expander flanges, then you have to look for the material you need. Is it alloy steel, or any other material? Then the size of the flange, classifications, bolt holes, pressure class, and any other necessary information about your needs. Oftentimes, if you present your needs correctly, your suppliers can propose the right solution to you.

ASTM A182 F304 expanding slip on flange and Inconel 625 expander steel flange for high-duty applications in Bahrain

A350 lf2 expanding slip on flanges or any other flange can be tested to verify the performance. There are X-ray detectors, direct reading spectrographs, magnetic particle detectors, UI transonic flaw detectors, and methods of hydrostatic testing. The Class 150 expander weld neck flanges or any other specific flange can be tested to see if they meet the specified properties. Tensile test, yield point test, bending test, and impact test will provide information to verify if the flange performs as specified; but these are destructive tests. Destructive tests are usually performed at the manufacturing level.

Check dimensions of carbon steel expanding weld neck flange and ASME B16.47expanding slip on flange before buying from a reputable supplier in GCC countries

Asme b16 5 expander weld neck flanges ranges from ½ inch to 48 inches. The specialty of the flanges is that they combine the functions of a reducer and a weld-neck flanges. This reduces the space needed for two components. The Stainless steel expanding weld neck flanges has only two openings and no connections in between. This means, it is stronger than a welded neck flange and a reducer connection because it would reduce an extra connection. The Carbon steel expanding weld neck flanges is made of forged metal and has an even distribution of grain pattern and tensile capacities. The flange has an expanded end which has a larger diameter than the other side, thus acting as a reducer.