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.

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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 1991, 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, Iran , 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 .

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


Original photograph of Duplex Steel Flanges at our factory in india

Original photograph of Duplex Steel Flanges at our factory in india


Duplex Steel Flanges Size & Specification

Duplex Steel
F51
F53
F55
S31803
S32750
S32760
Duplex and Super Duplex Steel
SEW 400/V.D. TÜV 418 F51
F53
F55
1.4462

ASTM A182 Duplex Steel Flanges

Grade Duplex Steel
Duplex Steel Flanges Standard : ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges
Specification : ASTM A182 / ASME SA182 F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 /   F61
Dimension : ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN
Duplex Steel Flanges Class : 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64
Size : 1/8" to 36"
Test Certificate EN 10204-3.1, EN 10204-3.2
Under Third Party Inspection
Items Forged Flanges: SORF, WNRF, BLRF, SWRF, LAP Joint, Threaded, Reducing
Plate Flanges: SORF, BLRF, LAP Joint & Spectacle
Surplus stock at Dynamic Forge & Fittings
SPECIALS Our own factory and in-house machine shop enable us to produce Flanges, Forgings, Nozzles, Fittings and other products to customer requirements on an emergency basis.
Specialize As per drawing

Also as per National & International Standard & Specification


Duplex Steel Flanges Chemical Composition

Ni Min Max
Cr 4.5 6.5
Mo 22.0 23.0
Mn 3.0 3.5
Si - 2.0
C - 1.0
N - 0.03
S 0.14 0.2
P - 0.02
Fe - 0.03

ANSI/ASME steel flanges


EN/PED steel flanges


BS steel flanges


JIS steel flanges


valve components


Plain washer, gasket


Flange Standard



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



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 :


Other Available Duplex Steel Flanges Products


»   ASTM A182 Duplex Steel Weld Neck Flanges Manufacturers
»   ASTM A182 Duplex Screwed Flanges Exporter
»   ASME SA182 Duplex Steel Loose Flanges
»   Duplex Steel S32205 Lap Joint Flanges
»   ASTM A182 Duplex Steel UNS S32205 BLRF Flanges 
»   ANSI B16.5 Duplex WNRF Flanges Suppliers
»   Duplex Steel UNS S31803 Flanges
»   Duplex Steel UNS S31803 Reducing Flanges 
»   ASTM A182 Duplex Steel Weld Neck Flanges
»   UNS S31803 Duplex Steel Blind Flanges
»   Duplex Steel UNS S32205 Flanges

»   ASTM A182 Duplex Steel Slip On Flanges 
»   AISI B16.47 Duplex Steel Flanges Exporters
»   ASME SA182 Duplex Steel Flanges
»   Duplex Steel UNS S31803 Nipo Flanges
»  UNS S31803 Duplex Steel Slip on Flanges Suppliers
»   ASTM A182 Duplex Steel UNS S32205 Blind flanges
»   Duplex Steel Ring Type Joint Flanges
»   UNS S31803 Duplex Steel Long Weld Neck Flanges
»   Duplex Steel UNS S32205 Socket Weld Flanges
»   Duplex Steel S31803 Reducing Flanges
»   A182 Duplex Steel Threaded Flanges


Dealer, distributor & stockist of World’s Top 10 Manufacturers of Duplex Steel Flanges


BENKAN Corporation Duplex Steel Flanges, Japan

BENKAN Corporation Duplex Steel Flanges, Japan

BKL- Thai Benkan Duplex Steel Flanges, Thailand

BKL- Thai Benkan Duplex Steel Flanges, Thailand

Duplex Steel Duplex Steel Flanges dealer & distributor

interfit- Duplex Steel Flanges

Lame S.r.l. Duplex Steel Flanges, Italy

Lame S.r.l. Duplex Steel Flanges, Italy

Mega Duplex Steel Flanges, Italy

Mega Duplex Steel Flanges, Italy

Melesi Duplex Steel Flanges, Italy

Melesi Duplex Steel Flanges, Italy

Metal far Duplex Steel Flanges, Italy

Metal far Duplex Steel Flanges, Italy

Raccortubi S.p.A. Duplex Steel Flanges, Italy

Raccortubi S.p.A. Duplex Steel Flanges, Italy

TecnoForge Duplex Steel Flanges, Italy

TecnoForge Duplex Steel Flanges, Italy

Ulma Duplex Steel Flanges, Spain

Ulma Duplex Steel Flanges, Spain


We have supplied Duplex Steel Flanges to below countries


Malaysia Angola Netherlands
Nigeria Gabon Iran
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  


Duplex Steel Flanges, best quality Duplex Steel Flanges, ANSI/ASME B16.5 Socket Weld Flanges, Duplex Steel RTJ Flanges, Duplex Steel S32205 BLRF Flanges, Duplex Steel Plate Flanges, UNS S31803 Duplex Steel Reducing Flanges, ASTM A182 Duplex Orifice Flanges, Duplex Steel S32205 Slip On Flanges, India’s largest Duplex Steel Flanges manufacturer, wide variety of Duplex Steel Flanges, Duplex Steel Flanges India, Duplex Steel Flanges distributor Mumbai, Duplex Steel Flanges traders, prime quality Duplex Steel Flanges, Source for Duplex Steel Flanges, specialize in Duplex Steel Flanges, Duplex Steel Flanges with Test Certificate, Duplex Steel Flanges at dealer price.



Ready Stock


List of Countries where Ramesh Steel Corporation supply Duplex Steel Flanges