Duplex flanges

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duplex flanges

Duplex Flanges Highlights

Size in Ready Stock: 1/2″ to 48″ | DN15 to DN1200
Custom Sizes Available in: Up to 72 (ASME B16.47)
Steel Types: Austenitic Ferritic
Use For: Marine and Petrochemical
Duplex Flange Grade : Duplex 2205 Flanges
Suitable Temperature: 250° to 500°C
Raw Material Origin: UK, Janpanese, European, Korean, Indian, German
Finish: Mirror Finish, Spiral Serrated, Polished
Pressure Class: 150#, 300#, 600#, 900#, 1500#, 2500#
Faces Types : Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ), Tongue and Groove Face (T&G), Male Female Face (M&F)
Connection Types: Threaded and Welding
Duplex Flange Standard: ASME, BS, JIS, ASTM, DIN, ISO, EN
Suitable Environment: Marine Applications
Characteristics: Excellent Mechanical Properties
MTC: EN 10204/3.1B
RFQ: support@pipingmaterial.ae

 

Piping Material

Table of Content

 

Duplex blind flange and DSS slip on flanges suppliers in UAE

Duplex Steel Flanges Specification

Online platform for verified duplex flanges suppliers in UAE and order custom size and specification.

Duplex Flange Specification

Size In Ready Stock

Size In Ready Stock: 1/2″ to 48″ | DN15 DN1200

Maximum Size

Maximum Size: NPS 26 to NPS 60 For Large Diameter

Manufacturing Technique

Manufacturing Technique: CNC Machining, Forged, Drilling, Stamping

Number of Flanges Bolts Hole

Number of Flanges Bolts Hole: 4 To 48

Corrosion Resistance

Corrosion Resistance: Seawater, Phosphoric, Sulfuric and Nitric Acid

Surface Finish

Surface Finish: Stock Finish, Mirror & Smooth Finish

Application

Application: Petrochemicals, Oil & Gas, Power Generation

Testing

Testing: PIM Testing, Hardness & Hydrostatic Testing

Documentation

Documentation: Third Party Inspection, MTC EN 10204/3.1B

Packaging

Packaging: Wooden Case, Plastic Bag & Carton Box

Value Added Services

Value Added Services: Casting, Threading, Polishing, Cutting

Supporting Material

Supporting Material: Ring Joint, Bolts & Nuts, Gaskets

Quote

Get Quote Directly from duplex flanges suppliers in UAE

Tested

100% Tested duplex blind flange with MTC EN 10204 3.1/3.2

 

Manufacturing Size Range Of Duplex Steel Flange Faces Types Suitable Temperature Of Duplex Stainless Steel Flanges
  • 1/2″ to 48″
  • 15NB – 1200NB
  • PN 2.5 – PN 400
  • For larger sizes please contact above duplex flange manufacturers & suppliers in UAE
  • Flat Face or Plain Face duplex steel pipe flange (FF)
  • Raised Face (RF)
  • Duplex RTJ flange- Ring Joint
  • Tongue and Groove – T&G
  • Male Female face – M&F
  • Duplex Lap Joint flange – LJ
  • 250°-500°C
  • 1900-2100°F
Duplex Flange Material Pressure Class Most Common Types Of Duplex Stainless Flanges Manufacturing Technique Of Duplex Stainless Steel Flange Material
  • 150#
  • 300#
  • 600#
  • 900#
  • 1500#
  • 2500#
  • Socket weld flanges
  • Slip on flanges
  • Lap joint flanges
  • Weld neck flanges
  • Blind flanges
  • Reducing flange
  • Threaded flanges
  • Duplex steel forged flange (Most popular) – ASTM A182 / A182M
  • Duplex SS plate flange- ASTM A240/ A240M
  • Duplex cast flange- ASTM A995/ A995M
Types Of Duplex Blind Flanges Types Of Duplex Weld Neck Flanges Connection
  • Stainless steel duplex raised face blind flanges
  • Duplex flat face blind flanges
  • DSS ring type joint blind flanges
  • Duplex SS threaded blind flanges
  • Duplex stainless blind slip on flanges
  • Blind weld neck flanges
  • SA182 Duplex steel socket weld blind flanges
  • ASTM A182 duplex steel raised face weld neck flanges
  • Duplex steel ring type joint weld neck flanges
  • SA 182 duplex flat face weld neck flanges
  • Duplex stainless steel long weld neck flanges / LWNRF
  • A182 DSS weld neck orifice flanges
  • Threaded
  • Welded
Marking Duplex Socket Weld Flange Finish SA 182 Duplex Flange Installations & Applications
  • Manufacturer logo / name
  • Grade and material name
  • Sizes (NPS)
  • Standard Of ASTM and ASME
  • Type Of facing
  • Pressure rating
  • Origin of material
  • Above duplex flanges suppliers have ex-stock and already supplied to many countries such as South Africa, Middle east, Egypt, Oman & Saudi Arabia
  • Stock Finish – 125- to 250-μin
  • Serrated finish – (Required 30 to 55 grooves per inches)
  • Spiral Serrated – (Generated using a 90-deg tool)
  • Concentric Serrated – (125 and 500 micro inches)
  • Smooth Finish – (63-125 AA)
  • Mirror Finish / Cold Water Finish
  • Petrochemical plants
  • Nuclear energy sector
  • Power generation plant
  • Construction & mechanical systems
  • Industrial pressure vessels
  • High and Low pressure piping connection
German Standard Of DSS Flange Thread Types Of companion/ Screwed or Duplex Threaded Flanges Value added services
  • DIN 2578, 2573 Type 1 – Flat
  • DIN 2527 Type 5 – Blind
  • DIN 2627 to 2638 Type 11 – Weld neck
  • DIN 2558, 2565, 2566, 2567, 2568, 2569 Type 12 – Threaded
  • DIN 2622, 2641, 2655, 2656 Type 2, 4 – Lapped
  • NPT
  • MPT
  • FNPT (Female) – ASME B1.20.1
  • BSP
  • MNPT (Male)
  • FPT
  • BSPP (Female & male)
  • BSPT (Female)
  • Fastest delivery in Middle east
  • CNC machined
  • Casting
  • Threading
  • Forging
  • Metal stampings
  • Heat Treatment (Hardening and Tempering)
  • Tagging and marking
  • Cutting
  • Beveling end
  • Drilling
  • Polishing
  • Electroplating
  • Fabricate (100% Radiography)
  • MTR’s Available
  • Minor Fabrication
  • Pickled
  • Rolling
  • Sand Blasting
  • De-burring
Stainless Steel Duplex Flanges Meet The Requirements Of ASTM A182 Duplex Steel Flanges Testing Requirements Duplex Pipe Flange Manufacturing Standards and Origin Country
  • NACE MR0103
  • NACE TM-0284
  • ISO 15156
  • Sour service
  • NACE MR0175
  • Impact test
  • Visual inspection
  • Shell pressure test
  • Material inspection
  • PMI Test (Positive Material Identification)
  • Hardness test
  • Tensile test
  • Europe – BS EN 1092-1 (Steel)
  • Europe – BS EN 1092-3 (Alloy)
  • USA – ANSI
  • Australia and UK – BS 10
  • USA – ASME
  • USA – ASTM
  • Europe – EN
  • Europe – PN
  • Japan – JIS
  • Europe – BS EN 1092-2 (Iron)
  • Germany – DIN
  • USA – MSS SP44
  • USA – ASA
  • Korea – KS
  • USA – Class (CL) 125 (Light weight)
  • Malaysia – MS 816
  • Australia – AS 2129
  • Canada – CSA B16.5/ B16.47
  • China – GB/T 9112 / 9119
  • USA – API-605
  • Malaysia – MS 253
  • Europe – ISO 7005
  • USA – AWWA
  • Framce – NF E 29-200/ NF E 29-203
  • Italy – UNI 2276/ 6091
  • Russia – Ghost
Types Of Joint Thickness Bolts Hole
  • Threaded joint
  • Bolted joint
  • Welded joint
  • SCH 10
  • SCH 20
  • SCH 40
  • SCH 60
  • SCH 80
  • SCH 100
  • SCH 120
  • SCH 140
  • SCH 160
  • SCH 180
 4 To 24

 

Duplex Flange Grade

ADNOC approved duplex flanges suppliers in UAE offering high quality raw material and grade.

Storage Sites of Partner Suppliers

City Region Country
Dubai Middle East United Arab Emirates
Abu Dhabi Middle East United Arab Emirates
Dammam Middle East Saudi Arabia
Riyadh Middle East Saudi Arabia
Doha Middle East Qatar
Abuja Africa Nigeria
Kuwait City Middle East Kuwait
Jeddah Middle East Saudi Arabia
Cairo MENA Egypt
Casablanca MENA Morocco
Johannesburg Africa South Africa
Cape Town Africa South Africa
Lagos Africa Nigeria

 

Buy duplex stainless steel flanges from GASCO approved suppliers at the best price in Dubai

Duplex Stainless Steel Flanges Price List

Get benefits of lowest price when buying from duplex flanges stockists in Dubai.

Refer Price List of Duplex Flanges

 

Why Choose Duplex Flanges?


Why Choose Duplex Flanges?

 

Duplex Blind Flanges

Duplex Blind Flanges
  • ASME B16.5
  • Seal Ends of Piping Systems
Duplex Slip On Flanges

Duplex Slip On Flanges
  • Flat Face, Ring Type Joint, Raised Face
  • Designed to Small Diameter Pipe
Duplex Weld Neck Flange

Duplex Weld Neck Flange
  • DN15 to DN1500
  • Petrochemical
Duplex SS Socket Weld Flange

Duplex SS Socket Weld Flange
  • High Temperature Services
  • 1/2″ to 4″
Duplex Stainless Steel Threaded Flange

Duplex Stainless Steel Threaded Flange
  • NPT, BSP, BSPT, BSSP Threads
  • No Welding Needed
Duplex Spectacle Blind Flange

Duplex Spectacle Blind Flange
  • Designed to ASME B16.48
  • Class 150, Class 300, Class 600, Class 900, Class 1500, Class 2500,
Duplex Orifice Flanges

Duplex Orifice Flanges
  • 300#, 600#, 900#, 1500#, and 2500#
  • Designed to ASME B16.36
Duplex Steel Plate Flange

Duplex Steel Plate Flange
  • Flat Metal with Bolt Holes
  • Ideal for Low Pressure Services
DSS Long Neck Flanges

DSS Long Neck Flanges
  • Common Lengths of 9″, 12″, and 16″
  • Designed for High Temperature
Duplex Lap Joint Flange

Duplex Lap Joint Flange
  • Use With Stub End
  • Easy to Install

 

What Is Duplex Steel Flange Used For?

 

  • Chemical Processing
  • Heat Exchangers
  • Marine Industries
  • Water Desalination
  • Nuclear Power
  • Shipbuilding
  • Petrochemical
  • Seawater Cooling Systems
  • Natural Gas
  • Solar Power

 

Sales Agents in Following Locations

Muscat Riyadh Dubai Ras Al Khaimah
Sharjah Fujairah Umm Al Quwain Doha
Saudi Arabia Al Jubail Abu Dhabi Ajman

Key Benefits of Duplex Stainless Steel Flanges

duplex flanges suppliers can supply to your specifications and sizes at great deal in Sharjah and Ajman.

Key Benefits of Duplex Stainless Steel Flanges

 

Connect by live chat with verified duplex steel flange manufacturers & suppliers middle east countries

Duplex Flanges Manufacturing Process

Explore list of top 10 duplex flanges stockists in Umm Al Quwain, and check manufacturing process.

Forging Process

Forging Process
Heat Treatment

Heat Treatment
Finishing and Machining

Finishing and Machining
Material Composition Influence

Material Composition Influence
Application-Based Selection

Application-Based Selection
Quality Control

Quality Control

 

Warehouse Locations of Partner Suppliers

Middle East countries Qatar, Lebanon, Bahrain, Saudi, Kuwait, UAE, Jordan, Iraq, Syria, Iran, Yemen
Africa Nigeria, South Africa, Kenya, Morocco, Egypt, Tunisia, Algeria
MENA Morocco, Libya, Algeria, Tunisia, Egypt, Israel, Palestine

Duplex Stainless Steel Flange Pressure Rating

Find Saudi Aramco and ADNOC approved duplex flanges stockists in Ras Al Khaimah as per EN 1092-1 standard with class 15o0 to 2500 pressure class.

Temperature in (°F) Working Pressure by PSI
CL 75 CL 150 CL 300 CL 400 CL 600 CL 900 CL 1500 CL 2500
-20~100°F 145 290 750 1000 1500 2250 3750 6250
200°F 130 260 745 990 1490 2230 3720 6200
300°F 115 230 665 890 1335 2000 3335 5560
400°F 100 200 615 820 1230 1845 3070 5120
500°F 85 170 580 775 1160 1740 2905 4840
600°F 70 140 555 740 1115 1670 2785 4640
650°F 60 125 545 730 1095 1640 2735 4560
700°F – 110 540 725 1085 1625 2710 4520
750°F – 95 530 710 1065 1595 2660 4430

 

HS code of Duplex Stainless Flanges

  • HS Code 73072100

 

Duplex Flange Weight

Find list of top 5 verified duplex flanges distributors. You can also standard and sizes duplex stainless steel flanges from suppliers in Fujairah.

Normal Pipe Size Blind flange Weld Neck flange Slip On flange Socket Weld flange
1/2 1.98 1.98 1.10 1.98
3/4 1.98 1.98 1.98 1.98
1 1.98 3.08 1.98 1.98
1¼ 3.08 3.08 3.08 3.08
1½ 3.96 3.96 3.08 3.08
2 11.17 5.95 5.07 5.07
2½ 7.05 9.92 7.93 7.93
3 19.90 11.46 9.03 9.03
3½ 13.00 11.90 8.81 8.81
4 16.97 16.31 13.00 13.00
5 19.84 20.94 14.99 14.99
6 26.89 25.79 18.95 18.95
8 46.73 41.66 29.76 29.76
10 69.44 53.57 42.76 42.76
12 122.13 87.30 63.49 63.49
14 138.8 113.09 89.28 89.28
16 178.5 138.89 105.16 97.22
18 218.25 163.80 128.97 128.97
20 282.8 195.55 163.80 163.80
22 352.29 223.32 183.64 183.64
24 426.59 265.87 218.25 218.25

Check Out Your Nearby Locations For Fastest Deliveries

Country Cities
Netherlands The Hague
Belgium Meeuwen-Gruitrode
Netherlands Amsterdam
Belgium Antwerp
Netherlands Haarlem
Belgium Brussels
Belgium Seraing
Belgium Ghent
Belgium Leuven
Netherlands Eindhoven
Belgium Westerlo
Netherlands Rotterdam

 

Looking for a duplex stainless steel threaded flanges manufacturer? ASME/ ANSI B16.5 duplex forged flange is available in various sizes & types including slip on, blind, socket weld, and weld neck

Duplex Forging Flange Size Chart

Class 150 (Up to 48 inch)

Class 150 (Up to 48″)
Class 300 (Up to 24 Inch)

Class 300 (Up to 24″)
Class 600 (Up to 24 Inch)

Class 600 (Up to 24″)
Class 900 (Up to 20 Inch)

Class 900 (Up to 20″)
Class 1500 (Up to 16 Inch)

Class 1500 (Up to 16″)
Class 2500 (Up to 10 Inch)

Class 2500 (Up to 10″)

 

Suitable Components of Duplex Forged Flanges

Material Flange Grade Pipe and Tube Buttweld Fittings Fasteners
Duplex Flanges

 

Bolting chart for Class 150 Duplex Blind Flange

DN Bolts Number Length Of RF Stud Length Of Machine Bolt Size Of Bolt in UNC
15 4 55 50 1/2
20 4 65 50 1/2
25 4 65 55 1/2
32 4 70 55 1/2
40 4 70 65 1/2
50 4 85 70 5/8
65 4 90 75 5/8
80 4 90 75 5/8
90 8 90 75 5/8
100 8 90 75 5/8
125 8 95 85 3/4
150 8 100 85 3/4
200 8 110 90 3/4
250 12 115 100 7/8
300 12 120 100 7/8
350 12 135 115 1
400 16 135 115 1
450 16 145 125 1 1/8
500 20 160 140 1 1/8
600 20 170 150 1 1/4

 

Talk to multiple trusted duplex ss flange suppliers and DSS RTJ flanges for best price, check whether ASTM A182 duplex steel reducing flanges are magnetic or not

Duplex Stainless Steel Flanges Suitable Environment

Organic Acids

Organic Acids
Sulphuric Acid

Sulphuric Acid
Chlorine Acid

Chlorine Acid
Hydrogen Chlorine

Hydrogen Chlorine
Hydrochloric Acid

Hydrochloric Acid
Corrosion-resistant Service

Corrosion Resistant Service

 

Duplex SS Flanges Temperature Capabilities

Recommended temperature capabilities of duplex flanges is -50°C to 300°C.

 

Heat Treatment of Duplex Pipe Flange

  • Solution Annealing
  • Quenching
  • Stress Relieving

 

Value Added Services for Duplex Forged Flanges

  • Machining
  • Heat Treatment
  • Testing and Inspection
  • CNC Machining
  • Fabrication
  • Surface Finishing
  • Customization

 

Testing & Inspection of DSS Flanges


testing & inspection of dss flanges

 

Duplex Flanges Manufacturing Standards With Origin

Italy (UNI 6091)

Italy (UNI 6091)
Europe (EN 1092-1)

Europe (EN 1092-1)
USA (ASME B16.5)

USA (ASME B16.5)
Australia (BS 10)

Australia (BS 10)
Russia (Ghost)

Russia (Ghost)
Japan (JIS)

Japan (JIS)
France (NF E 29-200)

France (NF E 29-200)
Germany (DIN)

Germany (DIN)

 

Type of Duplex Slip On Flange

  • Duplex stainless steel slip on raised face flange
  • Duplex steel slip on flat face flange
  • Duplex stainless slip on reducing flange
  • Duplex slip on rtj flange
  • DSS slip on blind flange
  • ASTM A182 duplex slip on welding flange

 

Duplex Flanges ASTM Standard & Equivalent Chart

ASTM Standard Equivalent
ASME B16.5 – Class 150 – 2500LBS UNS S31803 (ASTM A182 F51)
ASME B16.47 – Series A/ B UNS S32205 (ASTM A182 F60)
ASME B16.36 – (DSS Orifice) WNR 1.4462
ASME B16.48 – (Duplex Spectacle Blinds) BS 318S13
ASME B16.20 – (RTJ Gaskets for Duplex Steel Flanges) JIS SUS 329J3L
ASME B16.34 – (Large Diameter Duplex Flanges) –

 

Duplex Flanges Chemical Composition

Duplex flange type C Cr Mn Mo N Ni P S Si
UNS S31803 casting flange 0.030 (max) 21.0-23.0 2.00 (max) 2.50- 3.50 0.08-0.20 4.50-6.50 0.030 (max) 0.020 (max) 1.00 (max)
UNS S32205 casting flange 0.030 (max) 22.0-23.0 2.00 (max) 3.00-3.50 0.14-0.20 4.50-6.50 0.030 (max) 0.020 (max) 1.00 (max)
UNS S31803 forged flange 0.030 21.0-23.0 2.0 2.50-3.50 0.080-0.20 4.50-6.50 0.030 0.020 1.0
UNS S32205 forged flange 0.030 23.0 2.00 3.5 0.20 6.5 0.030 0.020 1.00

 

Duplex Steel Flange Mechanical Properties

Properties UNS 31803 casting flange UNS S31803 forged flange
Yield Strength >450Mpa (65KS I) 621 (MPa) min
Tensile Strength >620Mpa (90KSI) 448 (MPa)
Elongation (Min) 25% 25%
Reduction of Area (50mm) 45% –
Hardness (HB) 270 HB maximum 293 HB maximum

 

Duplex Pipe Flanges Physical Properties

Density (kg/m3) 7800
Thermal Conductivity (at 100°C) 19
Electrical Resistivity (nΩ.m) 850
Elastic Modulus (GPa) 190
Specific Heat 0-100°C ( J/kg.K) 418

Duplex Flanges Properties

 

Chromium Content of Duplex Flange

  • Chromium Content : 22%

 

Duplex Steel Flange Better Than Stainless Steel?

Yes, Duplex flange is 2x stronger than stainless steel dlanges, Due to high yield and tensile strength.

 

List of Project in Middle East Where Duplex Flanges Suppliers Supplying Duplex Blind Flange

Saudi Aramco (Dhahran, Saudi Arabia)

Saudi Aramco (Dhahran, Saudi Arabia)
ADNOC (Abu Dhabi)

ADNOC (Abu Dhabi)
QatarEnergy (Doha, Qatar)

QatarEnergy (Doha, Qatar)
Kuwait Petroleum (Al Kuwait, Kuwait)

Kuwait Petroleum (Al Kuwait, Kuwait)
National Iranian Oil (Tehran, Iran)

National Iranian Oil (Tehran, Iran)
Iraq National Oil (Baghdad, Iraq)

Iraq National Oil (Baghdad, Iraq)

 

Types of Duplex Flanges

Duplex Ring Type Joint flange

Duplex Ring Type Joint flange

DSS plate flange

DSS plate flange

Duplex Stainless Socket Weld flanges

Duplex Stainless Socket Weld flanges

DSS raised face flange

DSS raised face flange

Stainless Steel Duplex Spectacle Blind flanges

Stainless Steel Duplex Spectacle Blind flanges

Duplex Blind flanges

Duplex Blind flanges

DSS Lap Joint flange

DSS Lap Joint flange

ASTM A182 duplex steel slip on flanges

ASTM A182 duplex steel slip on flanges

ASME B16.5 duplex steel weld neck flange

ASME B16.5 duplex steel weld neck flange

Duplex steel threaded flange

Duplex steel threaded flange

DSS Forged flanges

DSS Forged flanges

Duplex stainless steel orifice flange

Duplex stainless steel orifice flange

 

Estimated Time and Adresss of Duplex Flanges

Export to City Shipping Time in Days
Nigeria Abuja 30 Days
Oman Muscat 5 Days
Belgium Ghent 40 Days
Egypt Cairo 18 Days
Kenya Nairobi 19 Days
Netherlands Amsterdam 30 Days
United Arab Emirates Dubai Same Day
South Africa Johannesburg 25 to 30 Day
Bahrain Manama 9 Day

Verified Supplier

List of duplex flanges suppliers in UAE

available 7 cars
Prestige Metalloys LLC
1
Dubai, UAE
Prestige Metalloys LLC
  • info@metalloys.ae
  • +971 568293363
Katariya Steel Distributors Logo
1
Mumbai, India
Katariya Steel Distributors
  • katariyasteel1@gmail.com
  • +91 9833405433
Jignesh Steel
1
Mumbai, India
Jignesh Steel, India
  • sales@jigneshsteel.com
  • +91 9869357774
Bagoda Steel Project
1
Mumbai, India
Bagoda Steel Projects
  • sales@bagodasteelproject.com
  • +91-9011334411
Akai Metal
1
Mumbai, India
Akai Metal
  • info@akaimetal.com
  • +91 9167989177
Supplier 46
1
Abu Dhabi, UAE
Royal Veritas
  • nkk@rvoget.ae
  • +971 523973687     
Supplier 22
1
Mumbai, India
Bhansali Brothers
  • export@bhansalibrothers.org
  • +91 9820061687

Price

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All Flange material with MTC EN 10204/3.1

Manufacturing Standard includes ANSI/ ASME B16.5, B16.47, B16.36, B16.48 and MSS SP-25

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