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Duplex Steel F51/F52 Flanges

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F51 Duplex Steel Flanges, F52 Duplex Steel Weld Neck Flanges, Duplex Steel ASTM A182 2205 Flanges, Duplex S31803 Forged Flanges, Duplex F51 Slip On Flange Stockist, Duplex UNS S31803 Pipe Flanges, Ferritic/Austenitic Duplex Steel F52 Socket weld Flanges, Duplex Stainless Steel S32205 Blind Flanges, Duplex Steel F52 Flanges Manufacturer in India.

Neelkamal Alloys LLP is a listed supplier of Duplex Steel F51/F52 Flanges, which are quality accepted on distinct industry standards by the capable quality specialists. Depending on our knowledge in this field, we are into supplying and manufacturing Duplex Steel F51 Slip On Flanges, which is available at standard industry rates. We as well offer several other outstanding features of Duplex Steel F52 Forged Flanges such as Corrosion Resistance, High Performance, Toughness, Chemical Resistance, and so on. We are as well Dealer, Trader, Stockist, Supplier, Vendor and Exporter of Duplex Steel F51 Weld Neck Flanges, which has soaring tensile potency. In tune by means of industry quality standard, we offer Duplex Steel F52 Socket Weld Flanges in dissimilar specifications and sizes, according to the requirement of our customers. Duplex Steel F51 Long Weld Neck Flanges is also extremely recognized by our customers for rigid construction, high performance, corrosion resistance, durability and precise dimensions.

Duplex Steel F51/F52 Flanges

Duplex Steel F52 Lap Joint Flange, DIN 1.4462 Threaded Flanges, Duplex Steel 2205 Orifice Flange, ASME SA182 Duplex F51 RTJ Flanges Exporter, ASME B16.5 Duplex Steel S32205 Spectacle Blind Flanges, Duplex Steel F52 Reducing Flanges, Duplex F51 Weldo Flange, Duplex Steel 2205 Long Weld Neck Flanges, Duplex F51 WNRF Flange Dealer, ASTM A182 Duplex F51 SORF Flanges Supplier in Mumbai, India.

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By providing Duplex Steel F52 Blind Flanges, we have been fulfilling the requirements of the automotive, oil and gas industries, power plants, shipbuilding, and more. We supply best quality of Duplex Steel F51 Spectacle Blind Flanges to our respected clientele, where our quality supervisors review it as per national and international quality constraints. Duplex Steel F52 Orifice Flanges has a number of excellent features to provide like Great strength, Corrosion resistant, Unique quality and more.

ASME B16.5 Duplex Steel F51/F52 Flanges Specifications

Specifications ASTM A182 / ASME SA182
Flanges size 1/2" (15 NB) to 48" (1200NB) DN10~DN5000
Flanges Dimensions ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flange, ASME Flange, BS Flange, DIN Flange, EN Flange, GOST Flange.
Class / Pressure 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Flange Face Type Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Manufacturing Standards ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange, ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE, BS Flange, EN Flange, API 6A Flange etc
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
American standard (ANSI)
German (DIN)
British standard (BS)
Any other specilised Flange
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
Standard UNI 6Bar 10Bar 16Bar 25Bar 40Bar
Test Certificates EN 10204/3.1B
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc
Flanges uses & application Nuclear power (mostly seamless).
Petrochemicals and acids.
Bitumen upgraders.
Heavy oil refineries.
Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175.

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ANSI B16.5 Duplex Steel F51/F52 Pipe Flanges Forms & Availability
Products Size
Duplex F51/F52 Plate Flanges Duplex F51/F52 Ring Type Joint Flanges Sizes 1/2" (15 NB) to 48" (1200NB)
Duplex F51/F52 Reducing Flanges Duplex F51/F52 Slip On Flanges
Duplex F51/F52 Blind Flanges Duplex F51/F52 Threaded Flanges
Duplex F51/F52 Long Weld Neck Flanges Duplex F51/F52 Weld Neck Flanges
Duplex F51/F52 Spectacle Blind Flanges Duplex F51/F52 Square Flanges
Duplex F51/F52 Orifice Flanges Duplex F51/F52 Spade Flange
Duplex F51/F52 Raised Face Flanges Duplex F51/F52 Weldoflange
Duplex F51/F52 High Hub Blind Flanges Duplex F51/F52 SORF Flange
Duplex F51/F52 WNRF Flange Duplex F51/F52 Socket Weld Flanges
Duplex F51/F52 Lap Joint Flanges Duplex F51/F52 Flat Face Flanges
Duplex F51/F52 Puddle Flange Duplex F51/F52 BLRF Flanges
Duplex F51/F52 SWRF Flanges Duplex F51/F52 Screwed Flanges
Types of Duplex Steel F51/F52 Flanges
Duplex F51/F52 Slip on Flange
Duplex F51/F52 Slip on Flange

F51 Duplex Steel Slip on Flange | ASTM A182 Duplex Steel F52 Slip on Flange | ASTM A182 SAF 2205 Slip on Flanges | ASTM A182 Duplex 2205 SORF Flanges | Duplex F51 Raised Face Slip On Flanges | ANSI B16.5 Duplex Steel S31803 SORF Flanges | Duplex Steel S32205 Slip on Flange.

Duplex F51/F52 Weld Neck Flange
Duplex F51/F52 Weld Neck Flange

F51 Duplex Steel Weld Neck Flange | ASTM A182 Duplex Steel F52 Welding Neck Flange | ASTM A182 Duplex F52 Weld Neck Flanges | ASTM A182 Duplex 2205 WNRF Flanges | Duplex F51 Raised Face Weld Neck Flanges | ANSI B16.5 Duplex Steel S31803 WNRF Flanges | Duplex Steel S32205 Weld Neck Flange.

Duplex F51/F52 Blind Flange
Duplex F51/F52 Blind Flange

F51 Duplex Steel Blind Flange | ASTM A182 Duplex Steel F52 Blind Flange | ASTM A182 SAF 2205 Blind Flanges | ASTM A182 Duplex S31803 BLRF Flanges | Duplex F51 Raised Face Blind Flanges | ANSI B16.5 Duplex Steel S32205 BLRF Flanges | F52 Duplex Steel Blind Flange.

Duplex F51/F52 Socket Weld Flange
Duplex F51/F52 Socket Weld Flange

F51 Duplex Steel Socket Weld Flange | ASTM A182 Duplex Steel F52 Socket Weld Flange | ASTM A182 SAF 2205 Socket Weld Flanges | ASTM A182 Duplex 2205 SWRF Flanges | Duplex F51 Raised Face Socket Weld Flanges | ANSI B16.5 Duplex Steel S31803 SWRF Flanges | Duplex Steel S32205 Socket Weld Flange.

Duplex F51/F52 Threaded Flange
Duplex F51/F52 Threaded Flange

F51 Duplex Steel Threaded Flange | ASTM A182 Duplex Steel F52 Threaded Flange | ASTM A182 SAF 2205 Threaded Flanges | ASTM A182 Duplex 2205 Screwed Flanges | Duplex F51 Raised Face Threaded Flanges | ANSI B16.5 Duplex Steel S31803 Screwed Flanges | Duplex Steel S32205 Threaded Flange.

Duplex F51/F52 Orifice Flange
Duplex F51/F52 Orifice Flange

F51 Duplex Steel Orifice Flange | ASTM A182 Duplex Steel F52 Orifice Flange | ASTM A182 SAF 2205 Orifice Flanges | ASTM A182 Duplex 2205 Orifice Flanges | Duplex F51 Raised Face Orifice Flanges | ANSI B16.5 Duplex Steel S31803 Orifice Flanges | Duplex Steel S32205 Orifice Flange.

Duplex F51/F52 Long Weld Neck Flange
Duplex F51/F52 Long Weld Neck Flange

F51 Duplex Steel Long Weld Neck Flange | ASTM A182 Duplex Steel F52 Long Weld Neck Flange | ASTM A182 SAF 2205 Long Weld Neck Flanges | ASTM A182 Duplex 2205 LWNRF Flanges | Duplex F51 Raised Face Long Weld Neck Flanges | ANSI B16.5 Duplex Steel S31803 LWNRF Flanges | Duplex Steel S32205 Long Weld Neck Flange.

Duplex F51/F52 Spectacle Blind Flange
Duplex F51/F52 Spectacle Blind Flange

F51 Duplex Steel Spectacle Blind Flange | ASTM A182 Duplex Steel F52 Spectacle Blind Flange | ASTM A182 SAF 2205 Spectacle Blind Flanges | ASTM A182 Duplex 2205 Spectacle Blind Flanges | Duplex F51 Raised Face Spectacle Blind Flanges | ANSI B16.5 Duplex Steel S31803 Spectacle Blind Flanges | Duplex Steel S32205 Spectacle Blind Flange.

Duplex F51/F52 Ring Type Joint Flange
Duplex F51/F52 Ring Type Joint Flange

F51 Duplex Steel Ring Type Joint Flange | ASTM A182 Duplex Steel F52 Ring Type Joint Flange | ASTM A182 SAF 2205 Ring Type Joint Flanges | ASTM A182 Duplex 2205 RTJ Flanges | Duplex F51 Ring Type Joint Flanges | ANSI B16.5 Duplex Steel S31803 RTJ Flanges | Duplex Steel S32205 Ring Type Joint Flange.

ASTM A182 F51/F52 Duplex Steel Flanges Equivalent Grades
STANDARD WERKSTOFF NR. UNS
F51/F52 1.4462 S31803 / S32205
ASTM A182 F51/F52 Duplex Steel Flanges Price List

Contact us or click on request a quote button to get our competitive prices for Duplex Steel 2205 Flange. Neelkamal Alloys LLP maintain the large inventory of high quality ASTM A182 Duplex Steel S31803/S32205 Flanges for sale to our clients throughout globally.

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F51/F52 Duplex Steel Pipe Flanges Chemical Composition
Grade C Mn Si P S Cr Mo Ni N Fe
F51 0.030 max 2.00 max 1.00 max 0.030 max 0.020 max 22.0 – 23.0 3.0 – 3.5 4.50 – 6.50 0.14 – 0.20 63.72 min
F52 0.030 max 2.00 max 1.00 max 0.030 max 0.020 max 21.0 – 23.0 2.50 - 3.50 4.50 – 6.50 0.8 – 0.20 63.54 min
Duplex Steel F51/F52 Flanges Mechanical Properties
Density Melting Point Tensile Strength, ksi 0.2% Yield Strength, ksi Elongation, % Hardness [HRC]
7.805 (g/cm 3) / 0.285 (lb/in 3) 1420 – 1465 °C (2588 – 2669 °F) 90 min 65 min 25 min 293 max
Pressure Rating Of F51/F52 Duplex Steel Flanges
ANSI/ASME B16.34 PRESSURE RATING CHART
Temperature °F 150# 300# 400# 600# 900# 1500# 2500#
-20 to 100 275 720 960 1440 2160 3600 6000
200 230 600 800 1200 1800 3000 5000
300 205 540 720 1080 1620 2700 4500
400 190 495 660 995 1490 2485 4140
500 170 465 620 930 1395 2330 3880
600 140 435 580 875 1310 2185 3640
650 125 430 575 860 1290 2150 3580
700 110 425 565 850 1275 2125 3540
750 95 415 555 830 1245 2075 3460
800 80 405 540 805 1210 2015 3360
850 65 395 530 790 1190 1980 3300
900 50 390 520 780 1165 1945 3240
950 35 380 510 765 1145 1910 3180
1000 20 320 430 640 965 1605 2675
1050 20 310 410 615 925 1545 2570
1100 20 255 345 515 770 1285 2145
1150 20 200 265 400 595 995 1655
1200 20 155 205 310 465 770 1285
1250 20 115 150 225 340 565 945
1300 20 85 115 170 255 430 715
1350 20 60 80 125 185 310 515
1400 20 50 65 95 145 240 400
1450 15 35 45 70 105 170 285
1500 10 25 35 55 80 135 230
Size Chart Of F51/F52 Duplex Steel Flanges
Nominal Pipe Size Outside Diameter of Flanges Thickness of Flanges Diameter of Raised Face Diameter of Hub at Base Length Thru Hub Diameter or Bore Diameter of Hub at Bevel Radius of Fillet Depth of Socket
Welding Neck Slip-On Threaded Socket Lap Joint Slip-on Socket Lap Joint
O Q R X Y Y Y W B H r Z
1/2 3-1/2 7/16 1-3/8 1-3/16 1-7/8 5/8 5/8 .88 .90 .84 1/8 3/8
3/4 3-7/8 1/2 1-11/16 1-1/2 2-1/16 5/8 5/8 1.09 1.11 1.05 1/8 7/16
1 4-1/4 9/16 2 1-15/16 2-3/16 11/16 11/16 1.36 1.38 1.32 1/8 1/2
1-1/4 4-5/8 5/8 2-1/2 2-5/16 2-1/4 13/16 13/16 1.70 1.72 1.66 3/16 9/16
1-1/2 5 11/16 2-7/8 2-9/16 2-7/16 7/8 7/8 1.95 1.97 1.90 1/4 5/8
2 6 3/4 3-5/8 3-1/16 2-1/2 1 1 2.44 2.46 2.38 5/16 11/16
2-1/2 7 7/8 4-1/8 3-9/16 2-3/4 1-1/8 1-1/8 2.94 2.97 2.88 5/16 3/4
3 7-1/2 15/16 5 4-1/4 2-3/4 1-3/16 1-3/16 3.57 3.60 3.50 3/8 13/16
3-1/2 8-1/2 15/16 5-1/2 4-13/16 2-13/16 1-1/4 1-1/4 4.07 4.10 4.00 3/8 7/8
4 9 15/16 6-3/16 5-5/16 3 1-5/16 1-5/16 4.57 4.60 4.50 7/16 15/16
5 10 15/16 7.5/16 6-7/16 3-1/2 1-7/16 1-7/16 5.66 5.69 5.56 7/16 15/16
6 11 1 8-1/2 7-9/16 3-1/2 1-9/16 1-9/16 6.72 6.75 6.63 1/2 1-1/16
8 13-1/2 1-1/8 10-5/8 9-11/16 4 1-3/4 1-3/4 8.72 8.75 8.63 1/2 1-1/4
10 16 1-3/16 12-3/4 12 4 1-15/16 1-15/16 10.88 10.92 10.75 1/2 1-5/16
12 19 1-1/4 15 14-3/8 4-1/2 2-3/16 2-3/16 12.88 12.92 12.75 1/2 1-9/16
14 21 1-3/8 16-1/4 15-3/4 5 2-1/4 3-1/8 14.14 14.18 14.00 1/2 1-5/8
16 23-1/2 1-7/16 18-1/2 18 5 2-1/2 3-7/16 16.16 16.19 16.00 1/2 1-3/4
18 25 1-9/16 21 19-7/8 5-1/2 2-11/16 3-13/16 18.18 18.20 18.00 1/2 1-15/16
20 27-1/2 1-11/16 23 22 5-11/16 2-7/8 4-1/16 20.20 20.25 20.00 1/2 2-1/8
24 32 1-7/8 27-1/4 26-1/8 6 3-1/4 4-3/8 24.25 24.25 24.00 1/2 2-1/2
Weight Chart Of F51/F52 Duplex Steel Flanges
Nominal Pipe Size Outside Diameter of Flanges Thickness of Flanges Diameter of Raised Face Diameter of Hub at Base Length Thru Hub Diameter or Bore Diameter of Hub at Bevel Radius of Fillet Depth of Socket
Welding Neck Slip-On Threaded Socket Lap Joint Slip-on Socket Lap Joint
O Q R X Y Y Y W B H r Z
1/2 3-1/2 7/16 1-3/8 1-3/16 1-7/8 5/8 5/8 .88 .90 .84 1/8 3/8
3/4 3-7/8 1/2 1-11/16 1-1/2 2-1/16 5/8 5/8 1.09 1.11 1.05 1/8 7/16
1 4-1/4 9/16 2 1-15/16 2-3/16 11/16 11/16 1.36 1.38 1.32 1/8 1/2
1-1/4 4-5/8 5/8 2-1/2 2-5/16 2-1/4 13/16 13/16 1.70 1.72 1.66 3/16 9/16
1-1/2 5 11/16 2-7/8 2-9/16 2-7/16 7/8 7/8 1.95 1.97 1.90 1/4 5/8
2 6 3/4 3-5/8 3-1/16 2-1/2 1 1 2.44 2.46 2.38 5/16 11/16
2-1/2 7 7/8 4-1/8 3-9/16 2-3/4 1-1/8 1-1/8 2.94 2.97 2.88 5/16 3/4
3 7-1/2 15/16 5 4-1/4 2-3/4 1-3/16 1-3/16 3.57 3.60 3.50 3/8 13/16
3-1/2 8-1/2 15/16 5-1/2 4-13/16 2-13/16 1-1/4 1-1/4 4.07 4.10 4.00 3/8 7/8
4 9 15/16 6-3/16 5-5/16 3 1-5/16 1-5/16 4.57 4.60 4.50 7/16 15/16
5 10 15/16 7.5/16 6-7/16 3-1/2 1-7/16 1-7/16 5.66 5.69 5.56 7/16 15/16
6 11 1 8-1/2 7-9/16 3-1/2 1-9/16 1-9/16 6.72 6.75 6.63 1/2 1-1/16
8 13-1/2 1-1/8 10-5/8 9-11/16 4 1-3/4 1-3/4 8.72 8.75 8.63 1/2 1-1/4
10 16 1-3/16 12-3/4 12 4 1-15/16 1-15/16 10.88 10.92 10.75 1/2 1-5/16
12 19 1-1/4 15 14-3/8 4-1/2 2-3/16 2-3/16 12.88 12.92 12.75 1/2 1-9/16
14 21 1-3/8 16-1/4 15-3/4 5 2-1/4 3-1/8 14.14 14.18 14.00 1/2 1-5/8
16 23-1/2 1-7/16 18-1/2 18 5 2-1/2 3-7/16 16.16 16.19 16.00 1/2 1-3/4
18 25 1-9/16 21 19-7/8 5-1/2 2-11/16 3-13/16 18.18 18.20 18.00 1/2 1-15/16
20 27-1/2 1-11/16 23 22 5-11/16 2-7/8 4-1/16 20.20 20.25 20.00 1/2 2-1/8
24 32 1-7/8 27-1/4 26-1/8 6 3-1/4 4-3/8 24.25 24.25 24.00 1/2 2-1/2
Other Types of Grade F51/F52 Duplex Steel Flanges in Stock
  • Duplex Steel F51 Pipe Flanges
  • Duplex Steel F52 Reducing Flanges
  • Duplex F51 Slip On Flanges
  • F52 Duplex Steel Blind Flanges
  • Duplex UNS S31803 Socket Weld Flanges
  • Duplex WERKSTOFF NR. 1.4462 Flanges
  • ASTM A182 F52 Duplex Steel Weld Neck Flanges
  • Duplex Steel F51 Lap Joint Flanges
  • Duplex 2205 Threaded Flanges
  • Duplex F52 Raised Face Flanges
  • F51 Duplex Steel Orifice Flanges
  • Duplex UNS S32205 Ring Type Joint Flanges
  • Duplex WERKSTOFF NR. 1.4462 Forged Flange
  • ANSI B16.5 Duplex Steel F52 Flat Face Flanges
  • Duplex Steel F51 SWRF Flange
  • Duplex Steel S31803 SORF Flanges
  • Duplex Steel F51 NipoFlange
  • Duplex Steel F52 Weldo Flange
  • Duplex Steel S32205 BLRF Flanges
  • F52 Duplex Steel WNRF Flanges
  • Duplex Steel UNS S32205 DIN Flanges
  • Duplex Steel F52 Male & Female Flanges
  • A182 Duplex Steel DIN 1.4462 Square Flanges
  • ASME SA182 Duplex Steel F51 BLRF Flange
  • Duplex F51 Raised Face Blind Flanges
  • SAF 2205 RTJ Flange
  • Duplex F51 Exhaust Flanges
  • Duplex Steel F52 Tongue & Groove Flanges
  • Duplex F51 Reducing Flanges
  • Duplex Steel F51 late Flanges
  • F53 Duplex Steel Puddle Flanges
  • Duplex UNS S32205 Male & Female Flanges
  • Duplex Stainless Steel F51 Ring Spacer
  • WERKSTOFF NR. 1.4462 Forged Flanges
  • ASTM A182 Duplex Steel F51 Bleed Ring Flange
  • Duplex Steel F52 Screwed Flanges
  • Duplex F51 Square Flanges
  • F51 Duplex BS 10 Flanges
  • F52 Duplex Steel BS 4504 Flanges
  • Duplex UNS S31803 ASME B16.5 Flanges
  • Duplex WERKSTOFF NR. 1.4462 EN 1092-1 Flanges
  • Duplex ASTM A182 F52 SAE Flanges
  • ASTM A182 Gr. F52 Duplex RTJ Flanges
  • ANSI B16.5 F52 Duplex Steel ASME Flanges
  • Duplex Steel F51 BS 4504 Flanges
  • Duplex F52 Tongue & Groove Flanges
  • ASME SA182M Duplex Steel F52 SWRF Flange
  • F52 Duplex Steel JIS B2220 Flange
F51/F52 Duplex Steel Flanges Supplying to Following Regions & Countries
Off-Shore Oil Drilling Companies
Off-Shore Oil Drilling Companies
Power Generation
Power Generation
Gas Processing
Gas Processing
Pulp & Paper Industry
Pulp & Paper Industry
Chemical Equipment
Chemical Equipment
Petrochemicals
Petrochemicals