Super duplex flanges

Super duplex flanges

The super duplex material belongs to the family of highly performing stainless steel. It has around 25% chromium content in the alloy. The microstructure of the Super Duplex Flanges is made of both austenitic and ferritic grades of stainless steel. It comes with some great physical and mechanical properties. The Alloy Blind Flange can effectively resist a wide range of chemical environments along with acids, acid chloride, and caustic solutions. The Super Duplex Stainless Steel Flanges have better resistance to stress corrosion and it also has better cracking and mechanical resistance compared to duplex steel. The A182 Super Duplex Flange shows good resistance to pitting, high tensile strength and greater resistance to stress corrosion cracking at moderate temperatures. Due to all these properties, the Super Duplex Stainless Steel Flanges are eligible for use in various onshore and offshore environments for gas and oil production. They are also used in harsh environmental condition like those found in chemical processing equipment, heat exchangers, pressure vessels, and so on.

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SDSS blind flange and ASTM A182 super duplex forged flange suppliers in UAE

Technical specification of super duplex steel flanges


Super Duplex Flange Specification

Sizes of Super Duplex Flanges Faces Types SDSS flange Tempurature Limit
  • 1/2″ to 48″
  • PN 2.5 – PN 400
  • 15NB – 1200NB

Get fastest quote from super duplex flanges suppliers in UAE for any size or pressure rating

  • Raised Face (RF)
  • Male Female face – M&F
  • Super Duplex Steel RTJ flange- Ring Joint
  • Tongue and Groove – T&G
  • Super duplex Lap Joint flange – LJ
  • Flat face or plain face (FF)
  • -200 to +300 °C
  • -330 to +570 °F
Joint Method Wall Thickness Bolts Hole
  • Threaded joint
  • Bolted joint
  • Welded joint
  • Schedule 10
  • Schedule 20
  • Schedule 40
  • Schedule 60
  • Schedule 80
  • Schedule 100
  • Schedule 120
  • Schedule 140
  • Schedule 160
  • Schedule 180
4 To 24
Meet The Requirements Of Super Duplex Slip On Flange Inspection Methods ASME Standard
  • NACE TM-0284
  • Sour service
  • NACE MR0175
  • NACE MR0103
  • ISO 15156
  • Visual inspection
  • Shell pressure test
  • Tensile test
  • Material inspection
  • Hardness test
  • PMI Test (Positive Material Identification)
  • Impact test
Types Of Super Duplex Slip On Flange Types Of Super Duplex Weld Neck Flanges Types Of Super Duplex Blind Flange
  • Super duplex slip on raised face flange
  • Slip on flat face flange
  • Type 25cr duplex slip on reducing flange
  • Super duplex steel slip on RTJ flange
  • 25cr super duplex slip on blind flange
  • Super duplex stainless slip on welding flange
  • Raised face weld neck flange
  • Flat face weld neck flange
  • SDSS long weld neck flange
  • Ring type joint weld neck flange
  • Weld neck orifice flange
  • Weld neck blind flanges
  • Weld neck slip on flanges
  • Super duplex stainless steel blind slip on flanges
  • Stainless super duplex raised face blind flanges
  • 25cr duplex steel flat face blind flanges
  • SDSS ring type joint blind flanges
  • Super duplex threaded blind flanges
  • Type 25cr duplex weld neck flanges
  • Super duplex steel socket weld blind flanges
Pressure Class of Super Duplex Forged Flanges Heat Treatment Manufacturing Standards Origin Country
  • 150#
  • 300#
  • 600#
  • 900#
  • 1500#
  • 2500#
  • Hardening
  • Tempering
  • Annealing
  • Spheroidizing
  • Normalizing
  • Europe – EN
  • Russia – Ghost
  • USA – ANSI
  • Australia and UK – BS 10
  • USA – ASME
  • USA – ASTM
  • Europe – BS EN 1092-2 (Iron)
  • Germany – DIN
  • USA – MSS SP44
  • USA – ASA
  • Europe – PN
  • Japan – JIS
  • USA – AWWA
  • China – GB/T 9112 / 9119
  • USA – API-605
  • Malaysia – MS 253
  • Europe – ISO 7005
  • Framce – NF E 29-200/ NF E 29-203
  • Italy – UNI 2276/ 6091
  • Europe – BS EN 1092-1 (Steel)
  • Europe – BS EN 1092-3 (Alloy)
  • Korea – KS
  • USA – Class (CL) 125 (Light weight)
  • Malaysia – MS 816
  • Australia – AS 2129
  • Canada – CSA B16.5/ B16.47
Machining Process Thread Types of Super Duplex Threaded Flanges Value added services
  • Material selection & cutting
  • Shaping & heat treatment
  • Forming & forging
  • Machining & surface finish
  • Inspection & quality control
  • FPT
  • BSP
  • MNPT (Male)
  • MPT
  • BSPT (Female)
  • FNPT (Female) – ASME B1.20.1
  • BSPP (Female & male)
  • NPT
  • MTR’s Available
  • Minor Fabrication
  • Pickled
  • Fastest delivery in Middle east
  • CNC machined
  • Beveling end
  • Drilling
  • Polishing
  • Sand Blasting
  • Threading
  • Forging
  • Metal stampings
  • Heat Treatment (Hardening and Tempering)
  • Rolling
  • Casting
  • Electroplating
  • Fabricate (100% Radiography)
  • De-burring
  • Tagging and marking
  • Cutting
Marking On Super Duplex Alloy Pipe Flanges Finish Types SDSS Blind Flanges Installations and Applications
  • Pressure rating
  • Sizes (NPS)
  • Type Of facing
  • Standard Of ASTM and ASME
  • Grade and material name
  • Origin of material
  • Manufacturer logo & name
  • Serrated finish – (Required 30 to 55 grooves per inches)
  • Smooth Finish – (63-125 AA)
  • Mirror Finish / Cold Water Finish
  • Stock Finish – 125- to 250-μin
  • Spiral Serrated – (Generated using a 90-deg tool)
  • Concentric Serrated – (125 and 500 micro inches)
  • Power generation plant
  • Construction & mechanical systems
  • Petrochemical plants
  • Nuclear energy sector
  • Industrial pressure vessels
  • High and Low pressure piping connection

Buy from leading super duplex flanges suppliers who have zero rejection rates from Egypt, South Africa, Middle east, USA, Saudi Arabia & Oman

Super Duplex Flanges Standard Specification

Buy super duplex steel flanges at affordable prices from trusted and genuine manufacturers & suppliers in Dubai

Super duplex flanges grade

 

Super duplex flanges types

Super duplex weld neck flange

Super duplex weld neck flange

SDSS spectacle blind flanges

SDSS spectacle blind flanges

Super duplex stainless steel plate flange

Super duplex stainless steel plate flange

25cr super duplex raised face flanges

25cr super duplex raised face flanges

Super duplex steel socket weld flange

Super duplex steel socket weld flange

25cr duplex SS threaded flange

25cr duplex SS threaded flange

Super duplex SS slip on flanges

Super duplex SS slip on flanges

SS super duplex blind flange

SS super duplex blind flange

Super duplex alloy forged flanges

Super duplex alloy forged flanges

Super duplex steel lap joint flange

Super duplex steel lap joint flange

SS super duplex ring type joint flange

SS super duplex ring type joint flange

SDSS orifice flanges

SDSS orifice flanges

Manufacturing technique of SDSS flanges

  • Casting
  • Cutting
  • Forging
Cutting Casting Forged
Price Best Better Good
Capacity and Strength Good Better Best
Dimensional Tolerances Better Best Good
Limiting Material Waste Good Better Best
Sizes and Material Good Best Better

 

Weight of SDSS flanges

Class 300 (in LBS)

Normal Pipe Size Blind flange Weld Neck flange Slip On flange Socket Weld flange
1/2 2.030 3.08 1.98 1.98
3/4 3.086 3.08 1.98 1.98
1 3.086 3.08 3.96 3.96
4.40 3.96 5.95 5.07
6.39 5.95 7.05 7.05
2 7.05 7.05 7.93 9.03
9.92 9.92 11.90 11.90
3 13.00 13.00 15.87 17.85
16.97 16.97 20.94 19.84
4 23.36 21.82 27.77 26.23
5 28.66 27.77 36.81 35.71
6 38.80 38.80 49.60 44.75
8 57.54 57.54 80.46 68.56
10 80.46 80.46 123.0 99.20
12 114.19 114.19 183.64 140.87
14 163.80 163.80 248.02 204.36
16 208.33 188.49 312.61 248.02
18 251.10 248.02 410.72 317.4
20 312.61 312.61 511.03 396.83
22 367.06 367.06 634.93 461.42
24 486.11 471.34 793.66 575.40

 


Super duplex flange pressure rating

Temperature In Fahrenheit (°F) Working Pressure by PSI
CL 150 CL 300 CL 600
-20~100 290 750 1500
200 260 745 1490
300 230 665 1335
400 200 615 1230
500 170 580 1160
600 140 555 1115
650 125 545 1095
700 110 540 1085
750 95 530 1065

 

Temperature In Fahrenheit (°F) Working Pressure by PSI
CL 900 CL 1500 CL 2500
-20~100 2250 3750 6250
200 2230 3720 6200
300 2000 3335 5560
400 1845 3070 5120
500 1740 2905 4840
600 1670 2785 4640
650 1640 2735 4560
700 1625 2710 4520
750 1595 2660 4430

 

Bolts hole diameter of flange super duplex

DN Diameter Bolts Thickness Number Of
In Inch Length In Inch Bolts Hole
15 3.74 M12.50 0.55 4
20 4.13 M12.55 0.62 4
25 4.52 M12.55 0.62 4
32 5.51 M16.55 0.62 4
40 5.90 M16.55 0.62 4
50 6.49 M16.65 0.70 4
65 7.28 M16.65 0.70 4
80 7.87 M16.70 0.78 8
100 8.66 M16.70 0.78 8
125 9.84 M16.70 0.86 8
150 11.22 M20.70 0.86 8
200 13.38 M20.75 0.94 12
250 15.94 M24.80 1.02 12
300 18.11 M24.80 1.10 12
350 20.47 M24.90 1.25 16
400 22.83 M27.100 1.41 16
450 25.19 M27.120 1.57 20
500 28.14 M30.125 1.73 20
600 33.07 M33.140 2.04 20

 

Components of super duplex alloy flanges

 

Types of super duplex socket weld flanges

  • Super duplex socket weld reducing flanges
  • Type 25cr duplex socket weld slip on flange
  • SDSS socket weld raised face flange
  • Socket weld neck flange
  • 25cr duplex steel socket weld orifice flange
  • Super duplex SS socket weld sae flange
  • Socket weld blind flange
  • Super duplex socket weld RTJ flange

 

4 difference between super duplex blind and slip on flange

Super duplex blind flange Super duplex slip on flange
Used to close the end of a pipe Used to connect pipes
Easily removed or installed Requires welding or bolting
Ideal for higher pressure applications Ideal for low pressure applications
Available in all grades and materials Available in custom sizes and pressure class

 

Super duplex flanges material equivalent

Grade WERKSTOFF NR. UNS
ASTM A182 F53 1.4410 S32750
ASTM A182 F55 1.4410 S32760

 

25CR super duplex pipe flanges chemical composition

Element UNS S32750 UNS S32760
Chromium, (Cr) 24-26 26
Nickel, (Ni) 6-8 8
Molybdenum, (Mo) 3-5 4
Manganese, (Mn) 1.2 (maximum) 1
Silicon, (Si) 0.8 (maximum) 1
Copper, (Cu) 0.5 (maximum) 1
Nitrogen, (N) 0.3 0.3
Phosphorous, (P) 0.035 (maximum) 0.035
Carbon, (C) 0.03 (maximum) 0.03
Sulfur, (S) 0.015 (maximum) 0.015
Tungsten, (W) 1

 

SDSS forged flanges mechanical properties

Grade Tensile Strength ksi Proof Strength 0.2% ksi (minimum) Elongation (%) (minimum) Hardness Rockwell C
UNS S32750 110-135 80 15 28 maximum
UNS S32760 860 720 minimum 16 minimum 270 maximum

Super Duplex Flanges Properties

Element of chromium in Super duplex pipe flanges

  • Chromium content is between 24% and 30%

 

Many of the listed suppliers can supply ADNOC approved 25 cr super duplex steel threaded flange at dealer price in the middle east and Africa, view ASME sa182 SDSS slip on flanges torque specs

The super duplex steel Forged Flange is strong and reliable because of their grain flow. The tight grain structure of the material also makes it mechanically strong and they are more resistant to general wear and tear.

The Super Duplex Steel Threaded Flanges are a type of forged flanges which comes with a screw thread to join with a pipe. They make it easy to mantle and dismantle the piping system for inspection and maintenance.

SDSS weld neck flange supplier in GCC countries, check super duplex stainless steel flanges dimensions, function, and test certificates

The strength of Asme Sa182 Super Duplex Slip On Flanges can be checked from the MCT reports. Generally, it is determined by the size and pressure class of the flange. The size, pitch circle diameter, and total number of bolt holes should also be considered while determining its strength.

Finding special sizes of super duplex plate flanges in Dubai? Get fair and reasonable prices from verified SDSS lap joint flange suppliers in Bahrain

The SDSS Weld Neck Flange is used in various severe and critical applications, like chemical processing, oil and gas, pressure vessels, heat exchangers, etc.

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