Duplex Steel Flanges Manufacturers in India, ASTM A182 f51 Duplex Flanges, 2205 Duplex Flanges, ASTM A182 Duplex Steel 2205 Flanges, ASTM A182 Duplex Steel Flanges.

Duplex Steel Flanges Manufacturers, Duplex Steel Flanges Suppliers, Duplex 2205 Flanges Manufacturers, Duplex 2205 Flanges Suppliers, 2205 Alloy Flanges, Duplex Steel Slip On Flange, Duplex Steel Welding Neck Flange, schedule 40 a182 f51 Duplex Stainless Steel Flange, Duplex Steel Blind Flange, Duplex Steel Socket Weld Flanges, Duplex Steel Plate Flange, Duplex Steel Collar Flange, Werkstoff No 1.4462 Duplex Steel 2205 Flanges, Duplex Steel Pipe Flanges, Duplex Steel UNS S31803 Flanges, Alloy 2205 Duplex Stainless Steel Flanges, Alloy 2205 Flanges, Duplex Steel Threaded Flange Suppliers in India. ANSI/ASME B16.5,B16.47,B16.47,B16.36, B16.48 Duplex Steel Flanges.

Manufacturer of Duplex Steel Flanges, Suppliers of Duplex Steel Flanges, ASTM A182 f51 Duplex Flange, A182 f51 Duplex Stainless Steel Flanges, ASTM A182 Duplex Stainless Steel Flanges Suppliers, Duplex Steel UNS S32205 Flanges, Astm A182 F51 Duplex Stainless Steel Flanges, Manufacturer of Duplex 2205 Flanges, ASTM A182 UNS S31803 Duplex Steel Flanges, Duplex Steel 2205 Flanges, Suppliers of Duplex 2205 Flanges, Seamless/Seam Welded Duplex Steel Flanges, Fabricated Duplex Steel Flanges, Duplex Steel Flanges Manufacturer, Suppliers in Indonesia, UAE, Saudi Arabia, Oman, Qatar, Australia.

Original photograph of Duplex Steel Flanges at our factory in india

Original photograph of Duplex Steel Flanges at our factory in india

Ramesh Steel Corporation is specialized in manufacturing and supplying of Duplex Steel Flanges , Pipe Fitting, Forged Fittings, Butt weld fittings, Flanges in Stainless steel, alloy Steel & carbon Steel Since 1982, we manufacture wide range of Duplex Steel Flanges such as Duplex Steel Slip On Flange, Duplex Steel Welding Neck Flange, Duplex Steel Blind Flange, Duplex Steel Socket Weld Flanges, Duplex Steel Plate Flange, Duplex Steel Collar Flange, Duplex Steel Threaded Flange etc. as per International standard like ASME/ASTM/API, we are supplying & exporting Duplex Steel Flanges in seamless & welded both forms to more than 60 countries for over 2 decades, we have our dealers & distributors in Nigeria, Australia, Malaysia, Egypt, South Africa, Tanzania, Kenya, Mozambique, Angola, Gabon Germany, Turkey, France, United Kingdom, Italy, Netherlands, Iraq , Saudi Arabia, United Arab Emirates , Iisrael, Jordan, Oman, Kuwait, Qatar, Bahrain, Bangladesh, China, Indonesia, South Korea, Pakistan, Philippines, Singapore, Sri Lanka, Thailand, Vietnam, Brazil, Colombia, Argentina & United States of America, Ramesh Steel corporation is the only company in INDIA which is approved Manufacturer & supplier of Duplex Steel Flanges in 300 top companies worldwide. Few of them are ORPIC, NIORDC, Saudi Aramco, SABIC, PIDMCO, GASCO, KNPC, Indian Oil, BPCL, HPCL, NTPC, BARC & Indian Navy, Ramesh Steel Corporation is ISO 9001:2008, ISO 14001, OHSAS 18001 Certified Company since 2006 & PED approved Manufacturer since 2008, Ramesh Steel is India's 6th largest Manufacturer, supplier & exporter of Duplex Steel Flanges .

Standard Specification For Duplex Steel ASTM A182 Industrial Flanges

Specifications : ASTM A182 / ASME SA182

Dimensions : ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.

Size : 1/8" NB TO 24" NB

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)

Grades : S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61

ASTM A182 Duplex Steel Pipe Flanges

Forged and Plate Flanges

Products Size
ASTM A182 Duplex Steel Slip-On Flanges ASTM A182 Duplex Steel Threaded Flanges Sizes 1/8″ – 36″
Raised Face or Flat Face
ASTM A182 Duplex Steel Weld Neck Flanges ASTM A182 Duplex Steel Socket Weld Flanges
ASTM A182 Duplex Steel Blind Flanges ASTM A182 Duplex Steel Reducing Flanges
ASTM A182 Duplex Steel Lap Joint Flanges ASTM A182 Duplex Steel Plate Flanges
ASTM A182 Duplex Steel Orifice Flanges ASTM A182 Duplex Steel Forged Flanges
ASTM A182 Duplex Steel Ring Type Joint Flanges ASTM A182 Duplex Steel Square Flanges

Duplex Steel Flange Standards / Types And Pressure Class :

ASME/ANSI B 16.5 Welding Neck Flange, Slip on Flange, Blind Flange, High Hub Blind Flange, Socket Weld Flange, Lap Joint Flange, Threaded Flange, Ring Type Joint Flange
PRESSURE CLASS 150, 300, 400, 600, 900, 1500, 2500
ASME/ANSI B 16.47 Welding Neck Flange, Blind Flange [Series A & B]
PRESSURE CLASS 75, 150, 300, 400, 600, 900
ASME/ANSI B 16.36 Welding Neck Flange, Slip on Flange, Threaded Flange
PRESSURE CLASS 300, 400, 600, 900, 1500, 2500
BS 4504 SEC 3.1 Welding Neck Flange, Hubbed Slip on Flange, Hubbed Threaded Flange, Lapped Pipe End Flange, Plate Flange, Loose Plate Flange, Loose Plate With Weld Neck Flange, Blank Flange
PRESSURE CLASS PN 2.5 TO PN 40
BS 4504[PART 1] Welding Neck Flange, Hubbed Slip-On Hubbed Threaded, Plate Flange, Loose Plate With Weld On Plate Collar, Blank Flange
PRESSURE CLASS PN 2.5 TO PN 400
BS 1560 BOSS Welding Neck Flange, Socket Welding Flange, Slip-On Flange, Blind Flange, Screwed Boss Flange, Lapped Flange
PRESSURE CLASS 150, 300, 400, 600, 900, 1500, 2500
BS10 Welding Neck Flange, Plate Slip-On Flange, Screwed Boss Flange, Slip-On 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

Ramesh steel corporation is manufacturing & exporting pipe flange from 1/2” thru 200”, 150 lbs to 3000 lbs including carbon Steel flanges , Duplex Steel Flanges and alloy Steel flanges according to ANSI , API , MSS , AWWA , DIN , JIS , BS and GB for the world market. We are experienced & specialized in manufacturing special ring flanges and other forgings as per drawing provided by our clients.

We supply ASME Code and Non Code Industrial flanges for the Petrochemical, Chemical & Waterworks industries. check our price before buying ANSI, API, AWWA pipe flanges in carbon Steel flanges , Duplex Steel Flanges , alloy Steel flanges and chrome steel flanges. Weld Neck flanges , flanges Slip on flanges , Blind flanges , Threaded flanges , socket weld flanges , Lap Joint flanges , Orifice Flanges in sizes 1/2" to 198" .

Infrastructure :

we at Ramesh Steel have 200 sets of equipment, including 20 sets of modern forging equipment, 140 high precision machine tools, floor-type lathes, drills, vertical lathes and other machining equipment, 2 electrical heating furnaces, 5 heat treatment furnaces, 2 PMI detection equipment, tensile machines, impact testers, hardness testers, metallographic analyzers, digital UT flaw detectors, etc. Forging process available in house: ring rolling forging, open die forging

ASME SA182 Duplex Steel Flanges Equivalent Grades
STANDARD WERKSTOFF NR. UNS
Duplex 2205 1.4462 S31803 / S32205
Chemical Composition of Duplex Stainless Steel Pipe Flanges
Grade C Mn Si P S Cr Mo Ni N Fe
S31803 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
S32205 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

Mechanical Properties of ASTM A182 Duplex Steel Plate Flanges
Grades Density (g/cm 3) Density (lb/in 3) Melting Point (°C) Melting Point (°F)
S31803 / S32205 7.805 0.285 1420 – 1465 2588 – 2669

Wrought Ferritic / Austenitic Duplex Flanges Available Types
Duplex Steel Flanges Duplex Steel EN 1092-1 Flanges
Duplex Steel BS 4504 Flanges Duplex Steel 2205 Forged Flanges
Duplex Steel UNS S31803 Flanges Duplex Steel S32205 Slip on Flanges
Duplex Steel Gr. F51 Flat Flange Suppliers ANSI 2205 Duplex Steel Blind Flange
Duplex Steel Gr. F52 Weld Neck Flanges Dealer Duplex Steel Socket weld Flanges Exporter
Duplex Steel F53 Long Weld Neck Flanges Stockholder Duplex F54 Threaded Flanges Distributors
Duplex Steel Grade F55 Reducing Flanges Duplex Steel F56 Ring Type Joint Flanges Manufacturer
Duplex Steel DIN 1.4462 Orifice Flange Duplex Steel S32205 Spectacle Blind Flanges
Duplex Steel UNS S32205 WNRF Flange Duplex 2205 SORF Flanges
ANSI B16.5 Duplex Steel F57 RTJ Flanges Duplex Steel Screwed Flanges Stockist
ASTM A182 Duplex Steel F59 Lap Joint Flanges ASME SA182 Duplex Steel BLRF Flange
Duplex Steel Gr. F60 Raised Face Flanges 2205 Duplex Steel Nipoflange
A182 Duplex Steel S32205 Square Flanges ASME SA182M Duplex Steel S31803 SWRF Flange
Duplex Steel F61 Tongue & Groove Flanges Duplex Steel S31803 Male & Female Flanges
Duplex Steel S32205 DIN Flanges Duplex Steel ASME B16.5 Flanges


Duplex Steel Flanges

Duplex Steel Flanges in our Stockyards


Available Duplex Steel Flanges Form

Duplex stainless steel ASTM A182 F51 F53 150 LBS API ANSI B16.5 RF welding neck flanges
Super duplex stainless steel 1.4501 flange
forged alloy duplex steel astm a182 f51 flange
  • Duplex stainless steel ASTM A182 F51 F53 150 LBS API ANSI B16.5 RF welding neck flanges
    FOB Price: US $0.1-1 / Piece

Super duplex stainless steel 1.4501 flange
FOB Price: US $0.15-10 / Piece
forged alloy duplex steel astm a182 f51 flange
FOB Price: US $27.6-32.4 / Kilogram  
a182 f51 duplex stainless steel flange
Duplex Steel Clss300 Stainless Steel Forging Flange
schedule 40 a182 f51 duplex stainless steel flange weight
a182 f51 duplex stainless steel flange
FOB Price: US $0.15-10 / Piece 
Duplex Steel Clss300 Stainless Steel Forging Flange
FOB Price: US $0.1-10 / Piece
schedule 40 a182 f51 duplex stainless steel flange weight
FOB Price:US $1-6 / Piece
High quality Alloy duplex steel A182F53 flange
a182 f51 duplex stainless steel flange price
Best price forged a182 f51 duplex stainless steel flange
High quality Alloy duplex steel A182F53 flange
FOB Price: US $27.6-32.4 / Kilogram
a182 f51 duplex stainless steel flange price
FOB Price:  US $800-1500 / Ton
Best price forged a182 f51 duplex stainless steel flange
FOB Price: US $15-900 / Piece 
a182 f51 duplex stainless steel flange
orifice a182 f51 duplex stainless steel rtj flange 900
din 1 4571 duplex stainless steel flange astm a182 f347
a182 f51 duplex stainless steel flange
FOB Price: US $0.5-5000 / Piece
orifice a182 f51 duplex stainless steel rtj flange 900
FOB Price: US $5-20000 / Piece
din 1 4571 duplex stainless steel flange astm a182 f347
FOB Price:
US $2-4 / Kilogram

Types of Duplex Steel Flanges


Types of Flanges



Our Specialization in Below Duplex Steel Pipe Flanges

  • duplex flange dimensions
  • duplex flange pressure rating
  • duplex flange rating
  • duplex flange suppliers
  • duplex flange weight
  • duplex flanges
  • duplex flanges astm
  • duplex stainless steel flange
  • duplex stainless steel flange rating


Type of Duplex Steel Flanges Available At Best Price

Duplex Steel Slip On Flange

Duplex Steel Slip On Flange

Duplex Steel Welding Neck Flange

Duplex Steel Welding Neck Flange

Duplex Steel Long Welding Neck Flange

Duplex Steel Long Welding Neck Flange

Duplex Steel Blind Flange

Duplex Steel Blind Flange

Duplex Steel Lap Joint Flange

Duplex Steel Lap Joint Flange

Duplex Steel Socket Weld Flanges

Duplex Steel Socket Weld Flanges

Duplex Steel Threaded Flange

Duplex Steel Threaded Flange

Duplex Steel Collar Flange

Duplex Steel Collar Flange

 Duplex Steel Flat Face Flange

Duplex Steel Flat Face Flange

Duplex Steel Raised Face Flanges

Duplex Steel Raised Face Flanges

Duplex Steel Ring Type Joint Flange

Duplex Steel Ring Type Joint Flange

Duplex Steel Spectacle Blind Flanges

Duplex Steel Spectacle Blind Flange

Duplex Steel Plate Flange

Duplex Steel Plate Flange

Duplex Steel Flat Flange

Duplex Steel Flat Flange

Duplex Steel Reducing Flange

Duplex Steel Reducing Flange

Duplex Steel Square Flange

Duplex Steel Square Flange

Duplex Steel Expander Flange

Duplex Steel Expander Flange

Duplex Steel Screwed Flange

Duplex Steel Screwed Flange

Duplex Steel Flange Facing Type & Finish

Duplex Steel Flange Facing Type & Finish

Duplex Steel Orifice Flange

Duplex Steel Orifice Flange

Duplex Steel Weldo / Nipo Flange

Duplex Steel Weldo / Nipo Flange

Duplex Steel Loose Flange

Duplex Steel Loose Flange

Duplex Steel High Hub Blinds Flange

Duplex Steel High Hub Blinds Flange

Duplex Steel Weld Neck Flange Series A or B

Duplex Steel Weld Neck Flange Series A or B

Duplex Steel Lip type flange

Duplex Steel Lip type flange


Steel Flanges Manufacturing Process



Duplex Steel Flanges Price List :

  • Duplex 2205 stainless steel RF Flange, Blind Flange, WN Flange
    FOB Price: US $0.5-1000 / Piece
  • Duplex stainless steel weld neck flange
    FOB Price: US $0.01-100.0 / Piece
  • Welding Neck Duplex & Super Duplex Steel ASTM A182 Flanges
    FOB Price: US $0.1-50 / Piece
  • a182 f51 duplex stainless steel flange
    FOB Price: US $0.5-200 / Piece
  • asme b16.5 duplex stainless steel welding neck flange
    FOB Price: US $0.1-1 / Piece
  • ASTM 182 F51 150#1300# Super Duplex Stainess Steel Flange
    FOB Price:US $2-50 / Piece
  • a182 f51 Duplex Stainless Steel Flange PN16 Floor Flange
    FOB Price: US $2-100 / Piece
  • a182 f51 duplex stainless steel flange DN200
    FOB Price: US $1.0 / Kilograms
  • Stainless steel Duplex 2205 flange
    FOB Price: US $20-33 / Kilogram
  • flanges ansi b16.5 duplex flange stainless steel forged flange
    FOB Price: US $1.5-50 / Piece
  • high quality duplex stainless steel wn flange
    FOB Price: US $0.2-10 / Piece

We have supplied Duplex Steel Flanges to below countries


Malaysia Angola Netherlands
Nigeria Gabon
Egypt Germany Iraq
South Africa Turkey United Arab Emirates
Tanzania France israel
Kenya United Kingdom Jordan
Algeria Italy Oman
Uganda Philippines Kuwait
Ghana Singapore Qatar
Mozambique Sri Lanka China
Morocco Thailand Indonesia
Saudi Arabia Vietnam Japan
Canada United States Pakistan
Mexico