Super Duplex Flanges manufacturer in India

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Class 150/ 300/ 600 AWWA C207 SA 182 F55 Blind (BLRF) Flange and ASTM A182 F53 Slip On (SORF) Flange manufacturer in India

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What is Super Duplex Flanges?
The super duplex stainless steel material has a hybrid austenitic-ferritic microstructure in a 50/560 ratio. This chemical composition of the super duplex flanges is a key factor in their higher tensile strength compared to other austenitic and ferritic grades of stainless steel. It has an alloy that has substantially more molybdenum and chromium than is typical, which gives it superior corrosion resistant qualities. There are various varieties of super duplex flanges available in various faces, and each one serves a particular purpose based on its structural design. Purchasing super duplex flanges has a number of advantages.

  • They are also resistant to different chemical attacks, acids, acid chlorides, caustic solutions, and several other environments.
  • They have good weldability and workability, which makes them perfect to be used in simple as well as complex piping structures.
  • Resistant to sulfide stress corrosion.
  • It is a cost-effective material that gives good performance in a chloride rich environment.
  • They have high strength
  • They possess low thermal expansion compared to the austenitic steel grades.
  • They have a high capability of energy absorption.
  • They possess high thermal conductivity.
  • To offer good resistance to pitting and crevice corrosion, erosion, stress corrosion cracking in chloride environment, and corrosion fatigue.

The unique features of the super duplex flanges make them eligible to be used in a wide range of industries like petrochemical, chemical, pulp and paper, off-shore drilling, marine, heat exchangers, etc.

Super Duplex 2507 Slip On Flanges Vs A182 F53 Super Duplex Weld neck Flanges
2507 is a grade for super duplex austenitic stainless steel which has high strength and possesses exceptional corrosion resisting properties. The Super Duplex 2507 Slip On Flangesare employed in petrochemical, chemical processing, and maritime sectors because they exhibit remarkable resistance to various types of corrosion. To provide a leak-proof connection, these slip-on flanges should be inserted into the pipe before being doubly welded from the inside and outside. Weld neck flanges made of the A182 F53 Super Duplex material have a minimum yield strength of 550 MPa and a minimum tensile strength of 800 MPa. In settings with high pressure or temperatures, these flanges work admirably. Additionally, they function very effectively when there is a change in temperature or pressure or when the pipeline is transporting a liquid that is flammable or toxic. This is why industries favour the A182 F53 Super Duplex Weld neck Flanges.

ASTM A182 UNS S32750 Blind Flange Vs Duplex Uns S32760 Threaded Flange
A material specification for super duplex stainless steel that has high strength and is corrosion-resistant in a variety of settings is ASTM A182 UNS S32750. The Duplex UNS S32760 Threaded Flange and the ASTM A182 UNS S32750 Blind Flange differ significantly in their structures, purposes, and working environments. TheASTM A182 UNS S32750 Blind Flange appears to be a solid steel plate with bored holes all around it but no central hole. They are joined to the pipe by bolts and mostly used to stop the pipe connection or seal the valve nozzle. They are typically employed in locations where piping applications are not in use or where regular inspection or repair is required.
The Duplex Uns S32760 Threaded Flangeconnects to the male NPT threaded piping and has a female NPT thread in the centre. These are useful for setting up connections that reduce. These are useful for applications that occasionally need for the specified piping system to be frequently connected and disconnected.

Is super Super Duplex 2507 Flanges austenitic?
A type of austenitic stainless steel called Super Duplex 2507 has chromium, nickel, and molybdenum in its alloy. Compared to other grades of austenitic stainless steel, super duplex materials have greater strength and better corrosion resistance due to their chemical makeup..

Super Duplex Flanges manufacturer in India

Super Duplex Flanges manufacturer in India

Raaj Sagar Steels is your perfect partner for all types of ASTM A182 F55 Socket Weld Flange including Super Duplex Stainless Steel Flanges and Werkstoff 1.4410 Weld Neck Flange in India


Size Range 1/2″ to 48″
Chart of Pressure Rating 300 LBS, 2500 LBS, 1500 LBS, 900 LBS, 150 LBS, 600 LBS
JIS 40 K, 16 K, 5K, 10 K, 30 K, 20 K, 63 K
Manufacturer of Connect / Flange Face Type LJF, RF, RTJ, FF, Small Tongue, Large Tongue & Groove
DIN Pressure Calculation 25Bar 40Bar 16Bar 6Bar 10Bar / PN64 PN10 PN25 PN16 PN6 PN40
Manufacturer of GOST, JIS, ANSI, DIN, UNI, BS, AWWA, AS2129, SABS, NFE, EN etc.
UNI / EN 16Bar 6Bar 40Bar 10Bar 25Bar
Origin Japan / West Europe / Indian / USA / Korean
Common Types By Manufacturer Threaded / Screwed / Forged / Plate
Equipment Pushing Machine, Press machine, Sand-blasting machine, Bending machine, electric bevelling machine etc
Test Magnetic particle detector, X-ray detector, Ultrasonic flaw detector, Direct-reading Spectrograph, Hydrostatic testing machine
Standards Provided By Manufacturer ISO70051, MSS S44, BS1560-3.1, API7S-43, B16.48, ANSI/ASME B16.5, B16.47 Series A & B, BS4504, JISB2220, ASME/ANSI B16.5/16.36/16.47A/16.47B, API605, BS 10, EN-1092, DIN, API7S-15, EN1092
Coating Zinc Plated, Anti-rust Paint, Yellow Transparent, Oil Black Paint, Cold and Hot Dip Galvanized
Production technique Used By Manufacturer Heat treated, Forged and machined

Biggest Alloy 2507 Flanges stockists, supplier, wholesalers, dealers, stockholders, distributor, importer, exporters and Manufacturer in Mumbai

Class 150 2507 SS Slip On Flange Dimensions

Size in Inch Size in mm No of Bolts Outer Dia. Hub OD ISO Stud Size Flanges Length RF Height Flanges Thick. RF Dia. PCD Hole Size Socket Bore Weight in kg
A C D F B E G H
1/2 15 4 90 30 M14 14 2 9.6 34.9 60.3 5/8 22.2 0.8
1 25 4 110 49 M14 16 2 12.7 50.8 79.4 5/8 34.5 0.9
3/4 20 4 100 38 M14 14 2 11.2 42.9 69.9 5/8 27.7 0.9
1 1/4 32 4 115 59 M14 19 2 14.3 63.5 88.9 5/8 43.2 1.4
2 50 4 150 78 M16 24 2 17.5 92.1 120.7 3/4 61.9 2.3
1 1/2 40 4 125 65 M14 21 2 15.9 73 98.4 5/8 49.5 1.4
2 1/2 65 4 180 90 M16 27 2 20.7 104.8 139.7 3/4 74.6 3.2
3 80 4 190 108 M16 29 2 22.3 127 152.4 3/4 90.7 3.7
4 100 8 230 135 M16 32 2 22.3 157.2 190.5 3/4 116.1 5.9
3 1/2 90 8 215 122 M16 30 2 22.3 139.7 177.8 3/4 103.4 5
5 125 8 255 164 M20 35 2 22.3 185.7 215.9 7/8 143.8 6.8
8 200 8 345 246 M20 43 2 27 269.9 298.5 7/8 221.5 13.7
10 250 12 405 305 M24 48 2 28.6 323.8 362 1 276.2 19.5
6 150 8 280 192 M20 38 2 23.9 215.9 241.3 7/8 170.7 8.6
12 300 12 485 365 M24 54 2 30.2 381 431.8 1 327 29
24 600 20 815 663 M33 81 2 46.1 692.2 749.3 1 3/8 616 100
16 400 16 595 457 M27 62 2 35 469.9 539.8 1 1/8 410.5 54
18 450 16 635 505 M30 67 2 38.1 533.4 577.9 1 1/4 461.8 59
14 350 12 535 400 M27 56 2 33.4 412.8 476.3 1 1/8 359.2 41
20 500 20 700 559 M30 71 2 41.3 584.2 635 1 1/4 513.1 75
Nominal Pipe Size
(inch)
Dia. of
Flanges
(inch)
No.
of
Bolts
Dia. of
Bolts
(inch)
Dia. of
Bolt Holes
(inch)
Bolt
Circle
(inch)
1/4 3-3/8 4 1/2 0.62 2-1/4
3/4 3-7/8 4 1/2 0.62 2-3/4
1 4-1/4 4 1/2 0.62 3-1/8
1/2 3-1/2 4 1/2 0.62 2-3/8
1-1/4 4-5/8 4 1/2 0.62 3-1/2
2 6 4 5/8 0.75 4-3/4
2-1/2 7 4 5/8 0.75 5-1/2
1-1/2 5 4 1/2 0.62 3-7/8
3 7-1/2 4 5/8 0.75 6
3-1/2 8-1/2 8 5/8 0.75 7
4 9 8 5/8 0.75 7-1/2
20 27-1/2 20 1-1/8 1.25 25
6 11 8 3/4 0.88 9-1/2
8 13-1/2 8 3/4 0.88 11-3/4
5 10 8 3/4 0.88 8-1/2
10 16 12 7/8 1 14-1/4
14 21 12 1 1.12 18-3/4
16 23-1/2 16 1 1.12 21-1/4
12 19 12 7/8 1 17
18 25 16 1-1/8 1.25 22-3/4
24 32 20 1-1/4 1.38 29-1/2

Supplier of ASTM A182 GR F53 Orifice Flanges and UNS S32750/ S32760 Super Duplex 2507 Lap Joint Flange offers Hydrotest, NDT and Pneumatic Test to confirm the integrity of weldments

NPS (Nominal Pipe Size) NPT (Threaded) WRNR (Weld Neck) SWRF (Socket Weld) Loose (Lap Joint) SORF (Slip On) BLRF (Blind)
½ 1 2 2 1 1 2
¾ 2 2 2 2 2 2
1 2 3 2 2 2 2
3 3 3 3 3 3
3 4 3 3 3 4
2 5 6 5 5 5 5
8 10 8 8 8 7
3 9 11.5 9 9 9 9
12 12 11 11 11 13
4 13 16.5 13 13 13 17
5 15 21 15 15 15 20
6 19 26 19 19 19 27
8 30 42 30 30 30 47
10 43 54 43 43 43 70
12 64 88 64 64 64 123
14 90 114 90 105 90 140
16 98 140 98 140 106 180
18 130 165 130 160 130 220
20 165 197 165 195 165 285
22 185 225 185 245 185 355
24 220 268 220 275 220 430
Super Duplex Flanges Price Per Piece in India SDSS Flanges Price in INR Alloy 2507 Flanges Price in UAE Dirham Super Duplex 2507 Flanges Price in USD
SUPER DUPLEX Flanges 200 MM DIA Per Piece 44,716 UAE Dirham 2176.28 $592.51
SUPER DUPLEX SS SW RF Flanges Per Piece 3,639 UAE Dirham 48.22 $177.11
25 MM DIA SUPER DUPLEX Flanges Per Piece 13,268 UAE Dirham 645.74 $175.81
50 MM DIA alloy 2507 WN Flanges Per Piece 22,786 UAE Dirham 301.92 $1108.96
100 MM DIA A182 F53 Super Duplex Flanges Per Kg 23,719 UAE Dirham 1154.37 $314.29

Get Stainless Steel 2507 Flanges At Best Price, India, Ask for a Live Quote Now For Super Duplex Flanges. Leading Super Duplex SS S32750 Flanges Manufacturer in India

A182 F53 Super Duplex Weld neck Flanges Dimensions

Flange NPS H Inside
Diameter
Flat Face
Thickness (T2)
Outside
Diameter
Raised Face
(RF)
Raised Face
(R)
H1 Raised Face
Thickness (T)
T1 Bolt Circle
(BC)
Bolt Hole
(B)
No. of
Bolt Holes
1/2" 1.19" 0.62" 1.82" 3.50" .063" 1.38" 0.84" 1.88" .38" 2.38" .62" 4
1-1/4" 2.31" 1.38" 2.19" 4.62" .063" 2.50" 1.66" 2.25" .56" 3.50" .62" 4
3/4" 1.50" 0.82" 2.00" 3.88" .063" 1.69" 1.05" 2.06" .44" 2.75" .62" 4
1-1/2" 2.56" 1.61" 2.38" 5.00" .063" 2.88" 1.90" 2.44" .62" 3.88" .62" 4
1" 1.94" 1.05" 2.13" 4.25" .063" 2.00" 1.32" 2.19" .50" 3.12" .62" 4
2" 3.06" 2.07" 2.44" 6.00" .063" 3.62" 2.38" 2.50" .69" 4.75" .75" 4
2-1/2" 3.56" 2.47" 2.69" 7.00" .063" 4.12" 2.88" 2.75" .82" 5.50" .75" 4
3" 4.25" 3.07" 2.69" 7.50" .063" 5.00" 3.50" 2.75" .88" 6.00" .75" 4
4" 5.31" 4.03" 2.94" 9.00" .063" 6.19" 4.50" 3.00" .88" 7.50" .75" 8
5" 6.44" 5.05" 3.44" 10.00" .063" 7.31" 5.56" 3.50" .88" 8.50" .88" 8
3-1/2" 4.81" 3.55" 2.75" 8.50" .063" 5.50" 4.00" 2.81" .88" 7.00" .75" 8
6" 7.56" 6.07" 3.44" 11.00" .063" 8.50" 6.63" 3.50" .94" 9.50" .88" 8
8" 9.69" 7.98" 3.94" 13.50" .063" 10.62" 8.63" 4.00" 1.06" 11.75" .88" 8
22" 24.25" 21.25" 5.82" 29.50" .063" 25.25" 22.00" 5.88" 1.75" 27.25" 1.38" 20
10" 12.00" 10.02" 3.94" 16.00" .063" 12.75" 10.75" 4.00" 1.13" 14.25" 1.00" 12
12" 14.38" 12.00" 4.44" 19.00" .063" 15.00" 12.75" 4.50" 1.19" 17.00" 1.00" 12
16" 18.00" 15.25" 4.94" 23.50" .063" 18.50" 16.00" 5.00" 1.38" 21.25" 1.12" 16
18" 19.88" 17.25" 5.44" 25.00" .063" 21.00" 18.00" 5.50" 1.50" 22.75" 1.25" 16
14" 15.75" 13.25" 4.94" 21.00" .063" 16.25" 14.00" 5.00" 1.32" 18.75" 1.12" 12
20" 22.00" 19.25" 5.63" 27.50" .063" 23.00" 20.00" 5.69" 1.63" 25.00" 1.25" 20
24" 26.12" 23.25" 5.94" 32.00" .063" 27.25" 24.00" 6.00" 1.82" 29.50" 1.38" 20
Bulk discount on RF, TF, FF, GF, RTJ EN 1092-2 SA 182 F53 Spectacle Blind Flange and 1.4410 Super Duplex Threaded Flange in Asia

ASTM A182 UNS S32750 Blind Flange Dimensions

Size in Inch Size in mm ISO Stud Size RF Height Outer Dia. RF Dia. Hole Size PCD No of Bolts Bolt Size UNC Flange Thickness RF Stud Length Weight in kg
D A C E B
1/2 15 M20 7 135 34.9 7/8 88.9 4 3/4 30.2 120 3.2
3/4 20 M20 7 140 42.9 7/8 95.2 4 3/4 31.8 125 3.7
1 25 M24 7 160 50.8 1 108 4 7/8 35 140 5
1 1/4 32 M27 7 185 63.5 1 1/8 130.2 4 1 38.1 150 7.8
1 1/2 40 M30 7 205 73 1 1/4 146 4 1 1/8 44.5 170 10.5
2 50 M27 7 235 92.1 1 1/8 171.4 8 1 50.9 180 18
2 1/2 65 M30 7 265 104.8 1 1/4 196.8 8 1 1/8 57.2 195 25.5
3 80 M33 7 305 127 1 3/8 228.6 8 1 1/4 66.7 220 39
4 100 M39 7 355 157.2 1 5/8 273 8 1 1/2 76.2 255 61.5
5 125 M45 7 420 185.7 1 7/8 323.8 8 1 3/4 92.1 300 102
6 150 M52 7 485 215.9 2 1/8 368.3 8 2 108 345 157
8 200 M52 7 550 269.9 2 1/8 438.2 12 2 127 380 241
10 250 M64 7 675 323.8 2 5/8 539.8 12 2 1/2 165.1 490 470
12 300 M72 7 760 381 2 7/8 619.1 12 2 3/4 184.2 540 575

Standard

Class

Bolt Size

Number of Bolts

Bolt Circle Diameter

Diameter

Diameter of Bolt Hole

AS4087

PN14

M12

4

67

95

14

AS 2129

Table C

13

4

67

95

14

Table D

13

4

67

95

14

Table E

13

4

67

95

14

Table F

13

4

67

95

14

Table H

16

4

83

114

17

Table J

16

4

83

114

17

ANSI B16.5

ANSI 150

13

4

60

89

16

ANSI 300

13

4

67

95

16

ANSI 600

13

4

67

95

16

ANSI 900

19

4

83

121

22

ANSI 1500

19

4

83

121

22

ISO 7005 (DIN)

PN6

M10

4

55

80

11

PN10

M12

4

65

95

14

PN16

M12

4

65

95

14

PN20

M14

4

60.5

90

16

PN25

M12

4

65

95

14

PN40

M12

4

65

95

14

Standard

Class

Bolt Size

Number of Bolts

Bolt Circle Diameter

Diameter

Diameter of Bolt Hole

AS4087

PN14

M12

4

73

100

14

AS 2129

Table C

13

4

73

100

14

Table D

13

4

73

100

14

Table E

13

4

73

100

14

Table F

13

4

73

100

14

Table H

16

4

83

115

18

Table J

16

4

83

115

18

ANSI B16.5

ANSI 150

13

4

70

98

16

ANSI 300

16

4

83

117

19

ANSI 600

16

4

83

117

19

ANSI 900

19

4

89

130

22

ANSI 1500

19

4

89

130

22

ISO 7005 (DIN)

PN6

M10

4

65

90

11

PN10

M12

4

75

105

14

PN16

M12

4

75

105

14

PN20

M14

4

70

100

16

PN25

M12

4

75

105

14

PN40

M12

4

75

105

14

Check BS10 Table D A182 GR F55 Spectacle Blinds, Alloy 2507 Forged Flange and A182F53 Plate Flange standard specification & price list

Standard

Class

Diameter

Bolt Circle Diameter

Number of Bolts

Bolt Size

Diameter of Bolt Hole

AS4087

PN14

115

83

4

M12

14

AS 2129

Table C

115

83

4

13

14

Table D

115

83

4

13

14

Table E

115

83

4

13

14

Table F

120

87

4

16

18

Table H

120

87

4

16

18

Table J

120

87

4

16

18

ANSI B16.5

ANSI 150

110

79

4

13

16

ANSI 300

125

89

4

16

19

ANSI 600

125

89

4

16

19

ANSI 900

102

4

22

25

ANSI 1500

102

4

22

25

ISO 7005 (DIN)

PN6

100

78

4

M10

11

PN10

115

85

4

M12

14

PN16

115

85

4

M12

14

PN20

115

85

4

M14

16

PN25

115

85

4

M12

14

PN40

115

85

4

M12

14

Temperature °F Class 150 Class 600 Class 1500 Class 400 Class 900 Class 300 Class 2500
-20 to 100 275 1440 3600 960 2160 720 6000
300 205 1080 2700 720 1620 540 4500
200 230 1200 3000 800 1800 600 5000
400 190 995 2485 660 1490 495 4140
600 140 875 2185 580 1310 435 3640
650 125 860 2150 575 1290 430 3580
500 170 930 2330 620 1395 465 3880
700 110 850 2125 565 1275 425 3540
750 95 830 2075 555 1245 415 3460
850 65 790 1980 530 1190 395 3300
800 80 805 2015 540 1210 405 3360
900 50 780 1945 520 1165 390 3240
950 35 765 1910 510 1145 380 3180
1000 20 640 1605 430 965 320 2675
1100 20 515 1285 345 770 255 2145
1150 20 400 995 265 595 200 1655
1050 20 615 1545 410 925 310 2570
1200 20 310 770 205 465 155 1285
1250 20 225 565 150 340 115 945
1300 20 170 430 115 255 85 715
1400 20 95 240 65 145 50 400
1350 20 125 310 80 185 60 515
1450 15 70 170 45 105 35 285
1500 10 55 135 35 80 25 230
S32750 / S32760 C N P Si Mn Mo Ni Cr S Other
0.030 0.24/0.32 0.035 0.80 1.20 3.0/5.0 6.00/8.00 24.0/26.0 0.020 Cu:0.50
STANDARD UNS WNR
Super Duplex S32750 S32750 1.4410
Super Duplex S32760 S32760 1.4410
S32750 / S32760 Density Melting Point Yield Strength (0.2%Offset) Tensile Strength Elongation
7.8 g/cm3 1350 °C (2460 °F) Psi - 80000 , MPa - 550 Psi - 116000 , MPa - 800 15 %
A182 Super Duplex Plate Flange

A182 Super Duplex Plate Flange

Super Duplex Grade 2507 Weld neck Raised Face Flanges

Super Duplex Grade 2507 Weld neck Raised Face Flanges

600 LBS SAF 2507 Expander Flanges

600 LBS SAF 2507 Expander Flanges

A182 F53 Super Duplex Girth Flanges

A182 F53 Super Duplex Girth Flanges

Super Duplex Steel Flat Face Flange

Super Duplex Steel Flat Face Flange

Sdss 2507 Blind Raised Face Flange

Sdss 2507 Blind Raised Face Flange

5000 NB Super Duplex Ss 2507 Long Weld Neck Flange

5000 NB Super Duplex Ss 2507 Long Weld Neck Flange

15 NB ASME B16.5 Super Duplex 2507 Blind Flange

15 NB ASME B16.5 Super Duplex 2507 Blind Flange

Super Duplex 2507 Uns S32750 Screwed Flange

Super Duplex 2507 Uns S32750 Screwed Flange

Alloy 2507 BLRF Flanges

Alloy 2507 BLRF Flanges

150 LBS AISI 2507 Super Duplex WNRF Flange

150 LBS AISI 2507 Super Duplex WNRF Flange

Class 150 Super Duplex UNS S32760 Flange

Class 150 Super Duplex UNS S32760 Flange

UNS S32760 SW Flange

UNS S32760 SW Flange

F52 Super Duplex Threaded Flange

F52 Super Duplex Threaded Flange

ASTM A182 2507 Alloy Steel Nipoflange

ASTM A182 2507 Alloy Steel Nipoflange

Super Duplex SS S32750 Forged Flange

Super Duplex SS S32750 Forged Flange

1.4410 Stainless Steel SWRF Flanges

1.4410 Stainless Steel SWRF Flanges

Class 900 Duplex Uns S32760 Flanges

Class 900 Duplex Uns S32760 Flanges

Sdss 25cr Reducing Flanges

Sdss 25cr Reducing Flanges

Alloy 2507 Super Duplex Spades ring spacers

Alloy 2507 Super Duplex Spades ring spacers

900 LBS ASME B16.5 Super Duplex Slip On Flange

900 LBS ASME B16.5 Super Duplex Slip On Flange

1500 LBS DIN 1.4410 Tongue & Groove Flange

1500 LBS DIN 1.4410 Tongue & Groove Flange

Super Duplex Stainless Steel RTJ Flanges

Super Duplex Stainless Steel RTJ Flanges

ASTM A182 F52 Raised Face Flanges

ASTM A182 F52 Raised Face Flanges

Stainless Steel Type 2507 Spectacle Blind Flanges

Stainless Steel Type 2507 Spectacle Blind Flanges

Super Duplex 2507 Uns S32760 Lap Joint Flanges

Super Duplex 2507 Uns S32760 Lap Joint Flanges

Class 300 Super Duplex S32760 Flanges

Class 300 Super Duplex S32760 Flanges

300 LBS Super Duplex Uns S32750 Ring Joint Flanges

300 LBS Super Duplex Uns S32750 Ring Joint Flanges

A182 F52 Weld Neck Flanges

A182 F52 Weld Neck Flanges

Super Duplex Alloy 2507 Lapped Joint Flanges

Super Duplex Alloy 2507 Lapped Joint Flanges

Super Duplex S32750 Socket Weld Flanges

Super Duplex S32750 Socket Weld Flanges

Super Duplex Alloy 2507 SORF Flanges

Super Duplex Alloy 2507 SORF Flanges

2500 LBS UNS S32750 Orifice Flanges

2500 LBS UNS S32750 Orifice Flanges

PREN Number >41
Yield Strength 80 ksi
Hardness ≥32 HRC
Thermal Conductivity 8.7 Btu/h ft °F
  • In a wide range of corrosive substances, it has excellent corrosion resistance.
  • In seawater and other chloride-containing conditions, it has exceptional resistance to pitting and crevice corrosion.
  • Critical Pitting Temperature exceeding 50°C
  • Compared to austenitic and 22 percent Cr duplex stainless steels, it has a higher strength.
  • At both ambient and sub-zero temperatures, this material has excellent ductility and impact strength.
  • High abrasion, erosion, and cavitation erosion resistance

Our non-destructive examination methods can be used on flanges made of stainless steel, cast iron, aluminum, brass, bronze, plastic, and other materials. We assist in the detection and prevention of flange leakage, which is frequently caused by

  • Improper Flange Alignment
  • Uneven Bolt Stress
  • Improper Gasket Centering
  • High Vibration Levels
  • Thermal Shock
  • Improper Gasket Size or Material
  • Dirty or Damaged Flanged Faces
  • Improper Flange Facing

Selecting high-quality billet blanking, heating, shaping, and forging cooling are the phases that make up the forging process. There are three types of forging: free forging, die forging, and film forging. Different forging processes are chosen during production based on the quality of the forgings and the number of production batches.

Below are the types of forging:

Free forging

Free forging

Die forging

Die forging

  • Extremely strong
  • High resistance to pitting and corrosion in crevices
  • Excellent resistance to stress-corrosion cracking caused by chloride
  • Thermal conductivity is high.
  • Low thermal expansion coefficient
  • Sulphide stress corrosion resistance is good.
  • Weldability and workability are both excellent.
  • Absorption of a lot of energy
  • Manufacturer logo
  • Thickness (Schedule)
  • Material Grade
  • Service rating (Pressure-temperature Class)
  • Size
  • ASTM material code
  • Heat No
  • Special marking if any W (Repair by welding) or QT (Quenched and tempered)

The microstructure of super duplex stainless steel has a mix of austenitic and ferritic grains. Ferritic microstructures are magnetic, whereas austenitic microstructures are not. As a result, super duplex grades are also magnetic.

  • Shielded Metal Arc Welding (SMAW), GasTungsten Arc Welding (GTAW), Plasma Arc Welding (PAW), or Submerged Arc Welding can be used to join it to itself and other materials (SAW).
  • Before welding, all surfaces must be clean.
  • Except to prevent condensation on cold metal, no preheating is required.
  • The recommended heat input ranges from 0.3 to 1.5 K1/mm.
  • The temperature of the interpass should not exceed 150 degrees Celsius.
  • For best corrosion resistance, the root should be protected with commercial Ar or 90 percent N2 / 10% H2 purging gas.
  • Super Duplex Forged flanges have a lower carbon content and are less prone to rust than cast flanges.
  • Alloy 2205 Cast flanges have a more streamlined design, a denser structure, and worse mechanical qualities.
  • If the forging process is done incorrectly, the grain will be broad and irregular, resulting in a hardening crack.
  • Super Duplex S32750 Cast flanges are less resistant to shear and tensile forces than SAF 2507 forged flanges.
  • The internal structure of the SDSS forged flange is homogeneous, and there are no hazardous faults in the casting, such as pores and inclusions.
  • Because of its low carbon concentration, it is particularly resistant to carbide-related inter-granular corrosion.
  • During heat treatment, there is a possibility of carbide precipitation at grain boundaries. It has a higher critical pitting temperature (CPT) than 904L.
  • It has good crevice corrosion and SCC resistance.
  • Organic acids like formic and acetic acid, as well as inorganic acids, especially those containing chlorides, are extremely resistant to uniform corrosion.
  • Excellent resistance to corrosive acids like as sulphuric, nitric, and phosphoric acids.
  • PMI Testing
  • Flaring Test
  • Ultrasonic testing
  • Flattening Test
  • Tensile test
  • Proof test
  • Visual test
  • Magnetic particle inspection test
Raw Material

Raw Material

Material Inspection

Material Inspection

Material Cutting

Material Cutting

Flange forging

Flange forging

Heat Treatment

Heat Treatment

Forging Rolling

Forging Rolling

Final Inspection

Final Inspection

Rust Prevention

Rust Prevention

Well Packing

Well Packing

  • Oil & Gas industry
  • Pulp & paper industry
  • Food Industry applications
  • Agrochemicals
  • Seawater cooling
  • Desalination plants
  • Marine Industry
  • Petroleum Industry

Both pressure class in bars of pressure and metric flange parameters are specified in PN10 and PN16 Super Duplex Flanges according to international flange standards such as ISO 7005-1 or DIN 2501 that use the metric system of measurements. It is excellent practice to provide the actual working pressure when establishing a PN flange standard, because it is usual for a specified PN, such as PN16, flange drilling to be required on a fitting or valve to match nearby flanges, but the pressure requirement is less than PN16.

Surface Types Maximum Roughness Value
Ring-type joint flanges (and hard gaskets) 63 µin AARH (1.6 µm AARH)
Tongue and Groove, and small Male and Female 125 µ.in. or 3.2 µ.m AARH

A Super Duplex raised face flanges differs from a Alloy 2507 flat face flanges in that the raised face has a raised portion that surrounds the pipe bore, whereas the ASME B16.5 SDSS flat face flanges does not. These are two of the most frequent flange face configurations. The ring type and the full-face gasket are the two types of gaskets that can be used to seal Super Duplex Steel FF Flanges. The gasket used with the FF flange makes full contact with the whole surface where two flanges are bonded, but the gasket used with the Raised Face flanges does not. A soft, flat, or semi-metallic gasket is compressed between matching flanges in the raised portion of the flanges to seal 2507 Alloy raised face flanges.

Concentric circular grooves or a continuous spiral groove (also known as 'phonographic') carved into the flange sealing surface make up Alloy 2507 serrated flange surfaces. Non-metallic (soft) and semi-metallic gaskets are used on 2507 Super duplex serrated flange surfaces.

The two serration kinds are depicted in the illustration below. The spiral serration in the image is exaggerated since the close proximity of the serrations makes it difficult to perceive the spiral shape on a real flange.

Serrated Alloy 2507 Flange

For spiral serrated and concentric serrated flange surfaces, the ASME B16.5 standard defines serrations of 1/64 inch (0.4 mm) deep with 32 serrations per inch (12.5 serrations per cm).

Super Duplex Alloy 2507 Flange

Super Duplex Alloy 2507 Flanges

Bangladesh, Finland, Brazil, Hong Kong, Oman, South Korea, Kuwait, Dubai, Qatar, United States,Poland, Indonesia, Jakarta -Indonesia, Istanbul- Turkey, Singapore, Malaysia, South Africa,Jakarta, Chile, Malaysia, South Africa, Kuwait, Norway, Europe, Belgium, Tehran -Iran, Kuala Lumpur, France, Netherlands, Dubai- UAE, Iran, Romania, United States, Vietnam, Czechia, Nigeria, Bahrain, NY 12203 (USA), Argentina, Indonesia

ASME B16.5 Super Duplex 2507 Flange

ASME B16.5 Super Duplex 2507 Flanges

Los Alamos -Mexico, Singapore, Turkey, Greece, Philippines, Dammam -KSA, Austria, Canada

Stainless Steel Type 2507 WNRF Flange

Stainless Steel Type 2507 WNRF Flanges

Spain, Thailand, United Kingdom (UK), Japan, Malaysia, USA, Saudi Arabia (KSA)