Duplex Stainless Steel Flanges manufacturer in India

Duplex steel flanges

UNS S31803 sorf flange and Duplex 2205 flanges supplier in Mumbai

Duplex steel flanges are made from duplex steel material and it is a family of stainless steels. It is designed to provide better corrosion resistance, particularly chloride stress corrosion and pitting corrosion, and higher strength as compared to standard austenitic stainless steels such as stainless steel 304 or stainless steel 316. 
We Aesteiron Steels LLP, are the duplex flanges suppliers, it is available in wide range of sizes, grades and specification with excellent qualities.  It used for connecting much equipment in the piping system valves, pipes, and pumps.  
duplexss flange in most case is  tougher than ferritic stainless steel. In some cases its strength is double that for austenitic stainless steels. It provide better ductility than that of ferritic and martensitic grades. It can readily be used down to at least -50°C.

duplex stainless steel flanges are used extensively in the gas offshore and oil industry for pipework systems, risers, manifolds, etc. and also in petrochemical industry in the form of pressure vessels and pipelines.

duplex 2205 flange material has goodstrength and has high corrosion resistance, pitting corrosion and crevice corrosion. The nominal chemical composition of Duplex 2205 is chromium 22%, molybdenum 3.2%, nickel 5% and other alloying elements such as manganese and nitrogen.

Duplex 2205 flanges is a method of connecting pipes, valves, pumps and other equipment to form a piping system. 

duplex blind flange block off a section of pipe or a nozzle on a vessel that is not used. It is terminate the end of a piping system. It does not have a hub or a bored center.

Standard Specification Of Duplex 2205 flanges

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

Duplex Stainless Steel Flanges Price List

Type Description USA FOB Price Malaysia FOB Price Europe FOB Price Singapore FOB Price Saudi Arabia (KSA) FOB Price
    Unit Per mtr Unit Per mtr Unit Per mtr Unit Per mtr Unit Per mtr
Duplex steel flanges Size : 3"NB x 150LB, WELD NECK  US $ 20.82 Malaysia Ringgit 84.74 Euro 17.49 Singapore Dollar 27.90 Saudi Riyal 78.08

Various Types Of duplex blind flange

Duplex 2205 Flanges
Duplex Steel Flanges
Duplex Blind Flange
Duplex Ss Flange
Duplex Stainless Steel Flanges
Duplex Flanges

Duplex Stainless Steel Flanges 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 Flange
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) Flange
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

Size of Duplex flanges

Nominal Size Outside Diameter
(OD)
Min. Thickness
(T)
RF Dia.
(R)
No. of Bolt Holes Diameter of Holes Bolt Circle
(BC)
SO Bore ID
(SB)
WN Bore ID
(WB)
Dia. Hub Base
(HB)
Dia. of Hub Top
(HT)
SO LTH
(SL)
WN LTH
(WL)
1⁄2 3.50 0.38 1.38 4 0.62 2.38 0.88 0.62 1.19 0.84 0.56 1.81
3⁄4 3.88 0.44 1.69 4 0.62 2.75 1.09 0.82 1.50 1.05 0.56 2.00
1 4.25 0.50 2.00 4 0.62 3.12 1.36 1.05 1.94 1.32 0.62 2.12
11⁄4 4.62 0.56 2.50 4 0.62 3.50 1.70 1.38 2.31 1.66 0.75 2.19
11⁄2 5.00 0.62 2.88 4 0.62 3.88 1.95 1.61 2.56 1.90 0.81 2.38
2 6.00 0.69 3.62 4 0.75 4.75 2.44 2.07 3.06 2.38 0.94 2.44
21⁄2 7.00 0.81 4.12 4 0.75 5.50 2.94 2.47 3.56 2.88 1.06 2.69
3 7.50 0.88 5.00 4 0.75 6.00 3.57 3.07 4.25 3.50 1.12 2.69
31⁄2 8.50 0.88 5.50 8 0.75 7.00 4.07 3.55 4.81 4.00 1.19 2.75
4 9.00 0.88 6.19 8 0.75 7.50 4.57 4.03 5.31 4.50 1.25 2.94
5 10.00 0.88 7.31 8 0.88 8.50 5.66 5.05 6.44 5.56 1.38 3.44
6 11.00 0.94 8.50 8 0.88 9.50 6.72 6.07 7.56 6.63 1.50 3.44
8 13.50 1.06 10.62 8 0.88 11.75 8.72 7.98 9.69 8.63 1.69 3.94
10 16.00 1.12 12.75 12 1.00 14.25 10.88 10.02 12.00 10.75 1.88 3.94
12 19.00 1.19 15.00 12 1.00 17.00 12.88 12.00 14.38 12.75 2.12 4.44
14 21.00 1.31 16.25 12 1.12 18.75 14.14 13.25 15.75 14.00 2.19 4.94
16 23.50 1.38 18.50 16 1.12 21.25 16.16 15.25 18.00 16.00 2.44 4.94
18 25.00 1.50 21.00 16 1.25 22.75 18.18 17.25 19.88 18.00 2.62 5.44
20 27.50 1.62 23.00 20 1.25 25.00 20.20 19.25 22.00 20.00 2.81 5.62
22 29.50 1.75 25.25 20 1.38 27.25 22.22 21.25 24.25 22.00 3.07 5.82
24 32.00 1.81 27.25 20 1.38 29.50 24.25 23.25 26.12 24.00 3.19 5.94

Duplex 2205 flanges Dimension Chart

Standard

Class

Diameter

Bolt Circle Diameter

Number of Bolts

Bolt Size

Diameter of Bolt Hole

AS4087 Flanges

PN14

95

67

4

M12

14

AS 2129 Flange

 

 

 

 

 

Table C

95

67

4

13

14

Table D

95

67

4

13

14

Table E

95

67

4

13

14

Table F

95

67

4

13

14

Table H

114

83

4

16

17

Table J

114

83

4

16

17

ANSI B16.5

 

 

 

 

ANSI 150

89

60

4

13

16

ANSI 300

95

67

4

13

16

ANSI 600

95

67

4

13

16

ANSI 900

121

83

4

19

22

ANSI 1500

121

83

4

19

22

ISO 7005 (DIN) Flange

 

 

 

 

 

PN6

80

55

4

M10

11

PN10

95

65

4

M12

14

PN16

95

65

4

M12

14

PN20

90

60.5

4

M14

16

PN25

95

65

4

M12

14

PN40

95

65

4

M12

14

UNS S31803 sorf flange Chemical Properties

Grade
C
Mn
Si
S
Cu
Fe
Ni
Duplex Steel S32205 201
0.02 max
0.35 max
0.35 max
0.01 max
0.25 max
0.40 max
99.0 min

Mechanical Behaviour of Duplex Stainless Steel Flanges

Element
Density
Melting Point
Tensile Strength
Yield Strength (0.2%Offset)
Elongation
Duplex Steel S32205 201
8.9 g/cm3
1446 °C (2635 °F)
Psi – 67000 , MPa – 462
Psi – 21500 , MPa – 148
45 %

Equivalent Grades of Duplex Ss Flange

STANDARD
WERKSTOFF NR.
UNS
JIS
BS
GOST
AFNOR
EN
Duplex Steel S32205
1.4462
S32205
NW 2201
NA 12
НП-2
LC-Ni 99

Physical Properties of Duplex 2205 flanges

Properties
Metric
Imperial
Density
8.89 g/cm3
0.321 lb/in3
Melting point
1435 - 1446°C
2615 - 2635°F

Duplex Flanges Suppliers in India

Duplex 2205 Flanges manufacturer