Duplex Flange Manufacturer

Duplex Stainless Steel Flanges, ASME b16.5 Duplex Steel Forged Flange and Duplex Blind Flange Suppliers, Duplex Steel Flanges Manufacturers in India

Duplex Flanges, Check class 150 duplex pipe flange dimensions and class 300 duplex steel welding neck flange pressure rating

Duplex stainless steels grades are named duplex because these Duplex Steel Flanges equivalent grades have a two phase microstructure. This two phase microstructure consists of grains both, Ferritic as well as austenitic stainless steel classes. As the name suggests, the duplex structure gives this Duplex Stainless Steel Socket weld Flange Material a combination of attractive properties:

Duplex Steel Flanges Manufacturers
Duplex Steel Flanges Manufacturers
Duplex Stainless Steel Flanges
Duplex Stainless Steel Flanges
Duplex Steel Slip On Flanges
Duplex Steel Slip On Flanges

Duplex Steel Flanges Sizes according to DIN – EN1092-1 – EN1759-1 – NFE – BS10/BS4504 – ISO7005-1

Strength: ASTM A182 Duplex Steel Threaded Flanges are about two times stronger as compared to as regular austenitic or Ferritic stainless steel grades.

Duplex Flange Manufacturer
Duplex Flange Manufacturer

Toughness and ductility: ANSI B16.5 Duplex Blind Flange tends to offer significantly better toughness as well as ductility when compared to Ferritic stainless steel grades. Although Duplex Steel Threaded Flanges suppliers in India appreciate its toughness and ductility, flanges from this grade do not reach or match the excellent values that have been offered by the austenitic stainless steel grades.

Corrosion resistance: As usual with all stainless steel grades, corrosion resistance of a metal or alloy depends mostly on the composition of the metal, in this case stainless steel. For resistance against chloride pitting and crevice corrosion, the content of elements such as chromium, molybdenum and nitrogen are considered as most important. By adding these elements, Duplex Stainless Steel Flanges Manufacturer in India increase the range of corrosion resistance in this grade of stainless steel. Therefore, Duplex Stainless Steel Pipe Flange Supplier recommend using this stainless steel grade in many operations as the range is similar to the range of corrosion resistance for austenitic stainless steel grades, i.e. from Type 304 or 316 to 6% molybdenum stainless steels.

Stress corrosion cracking resistance: Another reason why SORF Flange Supplier in Mumbai recommend using components made from this grade of stainless steel is because they display very good stress corrosion cracking (SCC) resistance. This is a property the ASME b16.5 Duplex Forged Flange has been inherited from the Ferritic side of the stainless steel. SCC could be a problem under certain circumstances like humidity & elevated temperature or environments containing certain chemicals such as chlorides, for standard austenitic stainless steel grades such as Types 304 and 316. Therefore, Duplex Blind Flange Suppliers often supply them to industries such as oil & gas, petrochemicals as well as marine industries.For example, Duplex Flange Manufacturer note that the flanges made from this grade of stainless steel often outperform many stainless steel grades.

Cost: Due to a lower nickel and molybdenum content in Duplex stainless steels, as compared to their austenitic counterparts, they tend to offer similar resistance to corrosion. This is why ASME SA182 Duplex Steel  Socket weld Flanges exporter in India quote a lower cost.  Lower alloying content, of duplex stainless steels would mean that the cost can be lowered. This stands true, especially in times of high alloy surcharges. Further, it may often be possible to reduce the section thickness of duplex stainless steel, on account of its increased yield strength when compared to austenitic stainless steel. This combination can lead to significant cost and weight savings in the class 150 duplex pipe flange dimensions when compared to a components in austenitic stainless steel grades.

 

Duplex Steel Flanges Specifications

Specifications ASTM A182 / ASME SA182
Duplex Steel Flanges Standards ANSI/ ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flanges.
ASTM A182 Duplex Steel Flange HS Code Duplex Steel Flange HS Code : 7307
Duplex Steel Flanges Standard DIN 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
Stainless Steel Duplex Flanges Standard ANSI Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Duplex Flanges Standard UNI 6Bar 10Bar 16Bar 25Bar 40Bar
Duplex Stainless Flanges Standard JIS 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
ASME B16.5 Duplex Steel Flange size range 1/2" (15 NB) to 48" (1200NB) DN10~DN5000
Stainless Steel Duplex Flange Standard EN 6Bar 10Bar 16Bar 25Bar 40Bar
Duplex Steel Pipe Flanges Test Certificates EN 10204/3.1B
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc
ASTM A182 Duplex Steel Flange supporting material Gasket, Ring Joint, Flange Bolts
ASTM A182 Duplex Steel Flanges Production technique
  • Forged, Heat treated and machined
Duplex Flanges Main Types Forged / Threaded / Screwed / Plate
Most common types of Duplex Steel Flanges
  • Weld Neck Ring Flanges (WNRF), Duplex Steel
  • Slip-On Ring Flanges (SORF), Duplex Steel
  • Blind Ring Flanges (BLRF), Duplex Steel
  • Socket Weld Ring Flanges (SWRF), Duplex Steel
  • Threaded Ring Flanges, Duplex Steel
  • Lap Joint Ring Flanges (LJRF), Duplex Steel
  • Ring Type Joint Flanges (RTJF), Duplex Steel
Duplex Flange Connect Type/ Flange Face Type Raised Face (RF), Ring Type Joint (RTJ), Large Male-Female (LMF), Flat Face (FF), Small Male-Female (SMF), Lap-Joint Face (LJF), Small Tongue, Large Tongue & Groove, , Groove
Duplex Steel Flange Test X-ray detector, Direct-reading Spectrograph, Hydrostatic testing machine, UI trasonic flaw detector, Magnetic particle detector
Equipment for DSS Flange Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc
Duplex Flanges Origin Indian / West Europe / Japan / USA / Korean (Strictly No china)
Duplex Flanges Special design

As per your drawing

AS, ANSI, BS, DIN and JIS
15 NB (1/2") to 200 NB (8")
Equal and Reducing Configurations

Specialized manufacturer of Duplex Flanges
  • DSS Rtj Flanges
  • Duplex Stainless Steel Pn16 Flanges
  • DIN 2566 pn16
  • DIN 2566 en 1092 1
  • DIN 2566 pn10
  • Duplex Steel Weld Neck Flanges
  • ASTM A182 Duplex Steel Threaded Flanges
  • Duplex Slip-On Flanges
  • ASTM A182 Duplex Steel Large Diameter Flanges
  • Duplex Stainless Sorf Flanges
  • Stainless Steel Duplex Blind Flanges
  • Duplex Steel Table Flanges
  • Duplex Stainless Socketweld Flanges
  • Stainless Steel Duplex Plate Flanges
  • DSS Lap Joint Flanges
  • Duplex Steel Loose Flanges
  • ASME B16.36 ASME SA182 Duplex Steel Orifice Flanges
  • ASTM A182 Duplex Steel AS 4087 Water Flanges
Key markets and industries for Duplex Steel Flanges
  • Bitumen upgraders.
  • Heavy oil refineries.
  • Nuclear power (mostly seamless).
  • Petrochemicals and acids.
Duplex Steel Flanges Standard
  • ANSI Flange
  • JIS/ KS Flange
  • API 6A Flange
  • ASME Flange
  • DIN Flange
  • EN1092-1 Flange
  • UNI Flange
  • BS4504 Flange
  • GB Flange
  • AWWA C207 Flange
  • GOST Flange
  • PSI Flange
Duplex Steel Flanges Application
  • Duplex Stainless Flange used to Connect Pipe & Tubes in Shipbuilding Petroleum, Gas, Chemical, Construction, Power, Metallurgy,etc
Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175

 


ASME B16.5 Duplex Steel Flanges
EN TYPE
DIN
WN – Welding Neck
EN-TYPE 11
DIN 2631
DIN 2632
DIN 2633
DIN 2634
DIN 2635
BL – Blind
EN-TYPE 05
DIN 2527
SO – Slip On
EN-TYPE 01/12
LJ – Lap Joint
EN-TYPE 02/04
DIN 2641
DIN 2642
DIN 2655
DIN 2656
SW – Socket Weld
EN-TYPE 14
THR – Threaded
EN-TYPE 13
DIN 2566
LWN – Long Welding Neck / Integral
EN-TYPE 21
Welding Collars
EN-TYPE 32/34
Duplex Steel Flat Flange for Welding
DIN 2573
DIN 2576
Duplex Steel Lap Joint Short Stub End
DIN 2673
ASTM A182 Duplex Steel Orifice Flanges, Duplex Stainless Swivel Flanges, Spades, Spacer Rings
Stainless Steel Duplex Spectable Blinds, API 6A, JIS B2220, VSM, NFE, BS10/BS4504, GOST

 

Duplex Steel Flanges  manufacturers in India. Stockist of Duplex Steel Forged Flange, Duplex RTJ Flanges distributors in Dubai, UAE

 

Duplex Steel Flange Types

 

Duplex Steel Flange Pressure Ratings

ASME/ANSI B 16.5 Slip on Flange, Welding Neck Flange, High Hub Blind Flange, Blind Flange,Lap Joint Flange, Socket Weld Flange, Ring Type Joint Flange, Threaded Flange
PRESSURE CLASS 150, 300, 400, 600, 900, 1500, 2500
ASME/ANSI B 16.47 Blind Flange [Series A & B], Welding Neck Flange
PRESSURE CLASS 75, 150, 300, 400, 600, 900
ASME/ANSI B 16.36 Slip on Flange, Welding Neck Flange, Threaded Flange
PRESSURE CLASS 300, 400, 600, 900, 1500, 2500
BS 4504 SEC 3.1 Hubbed Slip on Flange, Welding Neck Flange, Lapped Pipe End Flange, Hubbed Threaded Flange, Loose Plate Flange, Plate Flange, Blank Flange, Loose Plate With Weld Neck Flange
PRESSURE CLASS PN 2.5 TO PN 40
BS 4504[PART 1] Welding Neck Flange, Plate Flange, Hubbed Slip-On Hubbed Threaded,Blank Flange, Loose Plate With Weld On Plate Collar
PRESSURE CLASS PN 2.5 TO PN 400
BS 1560 BOSS Socket Welding Flange, Welding Neck Flange, Blind Flange, Slip-On Flange, Lapped Flange, Screwed Boss Flange
PRESSURE CLASS 150, 300, 400, 600, 900, 1500, 2500
BS10 Plate Slip-On Flange, Welding Neck Flange, Slip-On Boss Flange, Screwed Boss Flange, Blind Flange
TABLE D, E, F, H
DIN FLANGES DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673
PRESSURE CLASS PN 6 TO PN 100

 

Duplex Steel Flanges

ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc.
BS Flanges, EN Flanges, JIS/ KS Flanges, ANSI Flanges, ASME Flanges, DIN Flanges, API 6A Flanges, AWWA C207 Flanges, EN1092-1 Flanges, UNI Flanges,BS4504 Flanges, GB Flanges, GOST Flanges, PSI Flange

  • German (DIN)
  • British standard (BS)
  • American standard (ANSI)
  • B.S: BS4504 , BS3293, BS1560, BS10
  • AS 2129: Table D; Table E; Table H
  • ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
  • ANSI : ANSI B16.5, ANSI B16.47 (API605), MSS SP44, ANSI B16.36, ANSI B16.48
  • ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
  • DIN: DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638
  • The other standard: AWWA C207, EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123, NFE29203, UNI2276
  • Any other specilised flanges in grade ASTM A182 Duplex Steel

 

Duplex Flanges, ANSI B16.5 Duplex Blind Flange Flange and SORF Flange Supplier in Mumbai and ASME SA182 Duplex Steel Socket weld Flanges exporter in India

Duplex Steel Flanges Price in India

Duplex Steel Flanges Price List Duplex Steel Flanges Price in India Duplex Steel Flanges Price in USD (per piece) Duplex Steel Flanges Price in UAE Dirham (per piece)
Duplex Steel Slip On Flanges (SO FLANGE) 1.5mm Price per piece INR 7,704 / piece USD $ 111 AED 406 UAE Dirham
Duplex Steel Slip On Flanges (SO FLANGE) 3mm Price per piece INR 12,275 / piece USD $ 176 AED 646 UAE Dirham
Flange Duplex Steel 1-1/2 #600 SORF WITH HUB Price in India INR 1,982 / piece USD $ 29 AED 105 UAE Dirham
Flange Duplex Steel 4 #600 SORF WITH HUB Price in Mumbai INR 13,738 / piece USD $ 197 AED 723 UAE Dirham

 

Duplex Steel Flange Thickness Calculation

Duplex Steel Flange thickness calculation

Duplex Steel Flange thickness calculation as per ASME B31.3 Section 304.5.2

  •  The minimum thickness, considering the manufacturer ’s minus tolerance, shall be not less than tm
  •  To calculate t, the rules of Section VIII, Division 1, UG-34 may be used
  •  The minimum required thickness of flat unstayed circular heads, covers and blind flanges attached by bolts causing an edge moment in which case the thickness shall be calculated by the following formula:

Where,

  •  C = a factor depending upon the method of attachment of head, shell dimensions, and other items as listed in (d) below, dimensionless. The factors for welded covers also include a factor of 0.667which effectively increases the allowable stress for such constructions to 1.5S. (in our case C= 0.3)
  •  d = diameter, or short span, measured as indicated in Fig. UG-34.
  •  E = joint efficiency, from Table UW-12, of any Category A weld as defined in UW-3(a)(1).
  •  hG = gasket moment arm, equal to the radial distance from the center line of the bolts to the line of the gasket reaction
  •  P = internal design pressure
  •  S = maximum allowable stress value in tension from applicable table of stress values referenced by UG-23.
  •  W = total bolt load given for circular heads for Formulas (3) and (4), 2-5(e).

Duplex Steel Flanges suppliers, Manufacturer of Stainless Steel Duplex Threaded Flanges, ASTM A182 Duplex Steel  Socket weld Flanges in India and Dubai

 

Size Chart Of Duplex Steel Flange

Duplex Steel Flanges Sizes according to ASME/ASTM B16.5 – B16.36 – B16.48
  •  Class 150(lb) up to 24"
  •  Class 300(lb) up to 20"
  •  Class 600(lb) up to 20"
  •  Class 900(lb) up to 16"
  •  Class 1500(lb) up to 10"
  •  Class 2500(lb) up to 8"
Duplex Steel Flanges Sizes according to DIN – EN1092-1 – EN1759-1 – NFE – BS10/BS4504 – ISO7005-1
  •  PN2.5/PN06/PN10 up to DN800
  •  PN16/PN25/PN40 up to DN600
  •  PN63/PN100 up to DN500
  •  PN160/PN250 up to DN300
  •  PN320/PN400 up to DN200

NPS related to nominal diameter, DN in international standards, relations as below:

NPS DN
4
100
3/4
20
3
80
2 1/2
65
2
50
1/2
15
1 1/4
32
1 1/2
40
1
25

Note: For NPS ≥ 4, the related DN = 25 multiplied by the NPS number. For example NPS 10 is DN250.

 

Dimensions of Duplex Steel Flange

Dimensions of Duplex Steel Flange Dimensions of Duplex Steel Flange

 

ASTM A182 Duplex Steel Flanges Weight Chart

15mm (1/2") Duplex Steel Flange Weight Chart

Standard
Class
Diameter
Bolt Circle Diameter
Number of Bolts
Bolt Size
Diameter of Bolt Hole
AS4087 Flanges
PN14 Flanges
95
67
4
M12
14
AS 2129 Flanges
Table C Flanges
95
67
4
13
14
Table D Flanges
95
67
4
13
14
Table E Flanges
95
67
4
13
14
Table F Flanges
95
67
4
13
14
Table H Flanges
114
83
4
16
17
Table J Flanges
114
83
4
16
17
ANSI B16.5 Flanges
ANSI 150 Flanges
89
60
4
13
16
ANSI 300 Flanges
95
67
4
13
16
ANSI 600 Flanges
95
67
4
13
16
ANSI 900 Flanges
121
83
4
19
22
ANSI 1500 Flanges
121
83
4
19
22
ISO 7005 (DIN) Flanges
PN6 Flanges
80
55
4
M10
11
PN10 Flanges
95
65
4
M12
14
PN16 Flanges
95
65
4
M12
14
PN20 Flanges
90
60.5
4
M14
16
PN25 Flanges
95
65
4
M12
14
PN40 Flanges
95
65
4
M12
14

 

Stainless Steel Duplex Flanges for sale

ASTM A182 Duplex Steel Slip On Flanges
ASTM A182 Duplex Steel Reducing Flanges
Duplex Steel WNRF Flange
ASME SA182 Duplex Steel Forged Flanges
ASTM A182 Duplex Steel Blind Flanges
Duplex Stainless Forged Flange
Stainless Steel Duplex Raised Face Blind Flanges
ASTM A182 Duplex Steel Forged Flange
Duplex Stainless Blind Flanges
Duplex Stainless Steel Forged Flanges
Duplex Blind Flange
Stainless Steel Duplex Forged Flanges
ASTM A182 Duplex Steel Weld Neck Flanges
Duplex Stainless Reducing Flanges
Stainless Steel Duplex Raised Face Slip On Flanges
Duplex Stainless Reducing Flange
Duplex Stainless Weld Neck Flanges
ASME SA182 Duplex Steel Reducing Flanges
Duplex Stainless Weld Neck Flange
Stainless Steel Duplex Reducing Flange
ASME SA182 Duplex Steel Weld Neck Flanges
Duplex Reducing Flanges
Stainless Steel Duplex Weld Neck Flange
ASTM A182 Duplex Steel Forged Flanges

Duplex Flanges

DSS RTJ Flanges
Duplex Steel Slip On Flanges
Duplex Stainless Ring Type Joint Flange
Stainless Steel Duplex Raised Face Weld Neck Flanges
Duplex Stainless RTJ Flanges
Duplex Stainless Slip On Plate Flanges
Duplex Stainless Steel RTJ Flanges
Duplex Stainless Slip On Flanges
Stainless Steel Duplex RTJ Flanges
ASME SA182 Duplex Steel Slip On Flanges
DSS RTJ Flanges
ASTM A182 Duplex Steel SORF Flanges
ASTM A182 Duplex Steel Reducing Flanges
DSS Blind Flanges
Duplex Forged Flanges
Stainless Steel Duplex Blind Flange
Duplex Threaded Flanges
Duplex Stainless BLRF Flanges
ASTM A182 Duplex Steel Long weld Neck Flanges|
ASTM A182 Duplex Steel Orifice Flanges
Stainless Steel Duplex Long weld Neck Flanges
Stainless Steel Duplex Orifice Flanges
Duplex Long weld Neck Flanges
Duplex Stainless Orifice Flanges
Duplex Stainless Long weld Neck Flanges
Duplex Stainless Orifice Flanges
ASME SA182 Duplex Steel Long weld Neck Flanges
Duplex Orifice Flanges
Stainless Steel Duplex Long weld Neck Flanges
Stainless Steel Duplex Orifice Flanges
Duplex Steel Long weld Neck Flanges
Duplex Steel Orifice Flanges
ASTM A182 Duplex Steel RTJ Flanges
ASTM A182 Duplex Steel Socket weld Flanges
ASTM A182 Duplex Steel Ring Type Joint Flanges
Stainless Steel Duplex Socket weld Flanges
ASTM A182 Duplex Steel Threaded Flanges
Duplex Stainless Socket weld Flanges
Duplex Stainless Threaded Flanges
Duplex Stainless Socket weld Flanges
Duplex Stainless Threaded Flanges
ASME SA182 Duplex Steel Socket weld Flanges
ASME SA182 Duplex Steel Threaded Flanges
Stainless Steel Duplex SWRF Flanges
Stainless Steel Duplex Threaded Flanges
ASME B16.5 Duplex Stainless Socket weld Flanges
ASTM A182 Duplex Steel Threaded Flanges
Spectacle ASTM A182 Duplex Steel Flanges
Duplex Stainless Duct Flanges
Duplex Stainless Square Flanges
Stainless Steel Duplex Companion Flanges
Stainless Steel Duplex Ring Flanges
ASTM A182 Duplex Steel Turbo Flanges
Duplex Steel Plate Flanges
Duplex Steel Blank Flanges
Duplex Backing Flanges
Duplex Stainless Cover Flanges
Gaskets For Duplex Stainless Flanges
Large Diameter ASTM A182 Duplex Steel Flanges
DSS Tube Flanges
Duplex Floor Flanges
Duplex Stainless Steel Shower Rod Flanges
Duplex Stainless Screwed Flanges
ASTM A182 Duplex Steel Header Flanges
Stainless Steel Duplex Clad Flanges
Stainless Steel Duplex Pipe Flanges
Duplex Steel Manifold Flanges
Duplex Steel Exhaust Flanges
Duplex Handrail Flanges
Stainless Steel Duplex Muffler Flanges
ASTM A182 Duplex Steel Pressed Flanges
Duplex Steel Lap Joint Flanges
Duplex Pad Flanges
Stainless Steel Duplex Nipoflange
Duplex Steel Bleed Ring
Duplex npt threaded flange
Stainless Steel Duplex AWWA Flanges
Duplex Stainless Flangeolet
Duplex ansi class 150 Flange
DSS Ring Spacers
Duplex Steel Weldoflange
Stainless Steel Duplex LWN flange
ASTM A182 Duplex Steel Integral Flange
ASTM A182 Duplex Steel Sae Flanges
ASTM A182 Duplex Steel Pump Flanges
Duplex Stub End Flanges
Duplex Stainless Metric Flanges
ASME SA182 Duplex Steel Sbc Header Flanges
Stainless Steel Duplex Vacuum Flanges
Duplex Stainless Steel Slip-On Pipe Flanges
DSS Threaded Reducing Flanges
ASTM A182 Duplex Steel Split Flanges
Duplex Stainless Raised Face Flanges
Duplex Stainless Split Flanges
Class 600 ASTM A182 Duplex Steel Flanges
Duplex Steel Puddle Flanges
DSS Exhaust Flanges

 

Application of Duplex Steel Flanges

  •  Duplex Steel Flanges uses in Gas Processing
  •  Duplex Steel Flanges uses in Pharmaceutical Equipment
  •  Duplex Steel Flanges uses in Spiral Welded tube for burner pipes and flues
  •  Duplex Steel Flanges uses in Heat Exchangers
  •  Duplex Steel Flanges uses in Petrochemicals
  •  Duplex Flanges uses in Power Generation
  •  Duplex Steel Flanges uses in Specialty Chemicals
  •  Duplex Steel Flanges uses in Pharmaceuticals
  •  Duplex Steel Flanges uses in Aircraft exhaust manifolds
  •  Duplex Steel Flanges uses in Sea Water Equipment
  •  Duplex Steel Flanges uses in Off-Shore Oil Drilling Companies

 

Duplex Steel Flanges Equivalent Grades

F51/ F60
1.4462
UNS S31803
F53
1.4410
UNS S32750
F55
1.4501
UNS S32760

 

View ASTM A182 Duplex Steel Threaded Flanges and Duplex Stainless Steel Socket weld Flange Material Price List for India
Duplex Steel Threaded Flanges suppliers in India, Ready Stock of Duplex Flanges Sizes according to ASME/ASTM B16.5 – B16.36 – B16.48 in INDIA and UAE