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We choose best Quality raw materials to make Flanges from Worldwide Manufacturer of Steel, Alloy & Nickel Alloy. Material with Chemical, Physical, & Mechanical, Components, Ultrasonic  testes as per their International Norms and parameters range.

Duplex Steel Flanges

Research Results

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Research Results

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Human Resource:

F51 Forged Flange
Designer
F53 FLANGE
Designer
F55 FLANGE
Designer
F60 FLANGE
Designer
F61 FLANGE
Designer
Duplex DIN FLANGE
Designer
duplex flange
Manufacturer of Duplex Super Duplex flange
Duplex 2205 Flanges
Duplex, Super Duplex SORF, BLRF, WNRF Flange

Introduction

Repute Steel & Engineering Co. is an ISO 9001 Certified Manufacturer and Stockiest of All Range of Duplex and Super Duplex Flanges are highly demanded in all major industries  worldwide. Duplex is a Ferritic austenitic Stainless Steel material which provide Good corrosion resistance along with high strength makes it suitable for Oil & Gas Equipment, Chemical & Pharma Industry, Nuclear and Atomic Reactors, and Process Industry Applications.

We are having a long experience of more than 3 decades of manufacturing Duplex and Super Duplex Flanges. We are among the leading manufacturer, Stock Holder, Supplier and Exporter of UNS 32205, F53 or UNS S32750, F55 or UNS S32760, F51 or UNS S31803 Flanges dimensions and Best Quality RAW material with the manufacturing process as per the International Standards of Flanges makes us very popular in Flange Industry. 

Our Carbon Steel Forged Plate Flanges passes the strict Quality Testing at the every step of manufacturing. We are having latest technology Flange manufacturing Forging, Machining, Milling, Testing to produce the highest standard of Quality Flanges.

ALLOY 1.4462 / DUPLEX UNS S31803 / F51 / UNS S32205 / F60

ALLOY 1.4501 / SUPER DUPLEX UNS S32760 / F55

ALLOY 1.4410 / SUPER DUPLEX UNS S32750 / F53 / 2507 ALLOY 1.4507 / DUPLEX UNS 32550 / F61 FLANGES

Duplex Steel Flanges

Manufacturer & Exporter of Duplex Steel Flanges

Repute Steel is a leading manufacturer of Duplex Flanges. Repute Steel is a Duplex Flange Manufacturer, Stockiest and Exporter with fittings available in various grades like SORF, WNRF, BLIND, Duplex S32750, Duplex S32760, Duplex S31803. We export to more than 100 countries worldwide. All our products are manufactured as per industrial standards and complete customer satisfaction is our utmost priority.

DUPLEX FLANGES, DUPLEX UNS 32750 FORGED FLANGES, DUPLEX 32760 FLANGES, DUPLEX PLATE FLANGES, DUPLEX UNS 32750 WNRF FLANGE, DUPLEX 2205 FLANGES, 2205 FORGED FLANGES MANUFACTURER, DUPLEX 2205 FLANGES EXPORTER, DUPLEX 2205 SORF FLANGE, DUPLEX DIN FLANGE, DUPLEX FLANGE STOCKIEST, DUPLEX BLIND FLANGE MANUFACTURER, DUPLEX UNS 32750 FLANGE EXPORTER, DUPLEX UNS S32760 FORGED FLANGE MANUFACTURER, DUPLEX B16.5 FLANGE, INDUSTRIAL DUPLEX UNS 31803 FLANGES, DUPLEX BLRF FLANGES, BLRF 150CLASS FLANGES, DUPLEX 300 CLASS FLANGES, DUPLEX RTJ FLANGE, WNRTJ FLANGES MANUFACTURER

Duplex Flange:

Duplex Steel is around twice in Strength compare to Austenitic Stainless Steel grades. Duplex is a good corrosion resistance and high strength and hardness. 

The Repute Steel is a leading Duplex Flange Manufacturer in India, Duplex Flanges Manufacturers in India, Duplex Flanges Suppliers in India, Duplex Flanges Manufacturer in Chennai, Duplex Flanges Supplier in Chennai. We are the ISO certified manufacturing company for various ranges of Industrial products.

Repute Steel & Engg co. is a reputed Manufacturer of Flanges for industrial applications. SORF, WNRF, BLIND flange in Duplex S32750, S32760, S31803 grades. Repute Steel is a ISO certified manufacturer of Duplex Flanges for Industrial applications. Our duplex flanges are made from the finest materials and are in accordance with various standards. We can manufacture different types of Duplex stainless steel flanges such as Duplex SORF, WNRF, BLIND, Flanges, IN DUPLEX S32750, S32760, S31803 grades. With rich experience in the industry and global majors as clients, Repute Steel is a one-stop solution provider for Duplex Flanges. We’re ISO certified and a reputed manufacturer. We offer you full stock of Duplex Flanges

Repute Steel is an ISO-certified duplex flange manufacturer and supplier, with stocks in different grades of duplex materials. This includes Duplex SORF, WNRF, BLIND, Duplex Flanges in all grades and sizes as per DIN, ASME, ANSI, JIS, EN and IS standards. We have been exporting duplex material globally for many decades.

Repute Steel is a Duplex Flange Manufacturer, Stockiest and Exporter with rubber lining available in various grades like SORF, WNRF, BLIND, Duplex S32750, Duplex S32760, Duplex S31803. We export to more than 100 countries worldwide. All our products are manufactured as per industrial standards and complete customer satisfaction is our utmost priority.

As per API, ANSI, ASME, JIS, EN and API 6A standards. Also offer SORF Duplex Flanges in Grade S32750/60/6303.

FORGED FLANGE GRADES: A182 F31803, ASTM A182 F32205, ASME SA 182 F51 FLANGES, ASTM A182 F32750, ASME SA 182 F32760, MSS SP-44, Din 2533,

DUPLEX WNRF FORGED FLANGES, DUPLEX SORF FLANGES, DUPLEX BLIND FLANGES, DIN STANDARD DUPLEX FLANGE MANUFACTURER, ANSI B16.5 FORGED DUPLEX STEEL FLANGES, 150 CLASS DUPLEX FLANGES, 300 `CLASS FORGED WNRF FLANGES, 

 

        Duplex Steel Grades: 

Grade CMnSiPSCrMoNiN
2205 (S31803)
Min

Max
–

0.030
–

2.00
–

1.00
–

0.030
–

0.020
21.0

23.0
2.5

3.5
4.5

6.5
0.08

0.20
2205 (S32205)
Min

Max
–

0.030
–

2.00
–

1.00
–

0.030
–

0.020
22.0

23.0
3.0

3.5
4.5

6.5
0.14

0.20
 

ASTM A182 F FORGEDDuplex Steel Mechanical Composition Chart

Common Name

UNS No.

Yield Strength

Tensile Strength MPa

Elongation

Hardness, Max

MPa

(ksi)

(%)

(ksi)

 

 

 

 

 

 

 

Brinell

Rockwell B

 

S31200

450

690

25

293

31 HRC

-65

-100

 

S31260

485

690

20

290

–

-70

-100

 

S32001

450

620

25

–

25 HRC

-65

-90

 

S32003

485

690

25

293

31 HRC

-70

-100

thickness <=0.187”

thickness <=0.187”

450

655

-65

-95

thickness >=0.187”

thickness >=0.187”

 

S32101

530

700

25

293

31 HRC

-77

-101

thickness <=0.187”

thickness <=0.187”

450

650

-65

-94

thickness >0.187”

thickness >0.187”

 

S32202

450

650

30

290

–

-65

-94

2304

S32304

400

600

25

290

32 HRC

-58

-87

2205

S31803

450

620

25

293

31 HRC

-65

-90

2205

S32205

450

655

25

293

31 HRC

-65

-95

 

S32506

450

620

18

302

32 HRC

-65

-90

 

S32520

550

770

25

310

–

-80

-112

255

S32550

550

760

15

302

32 HRC

-80

-110

2507

S32750

550

795

15

310

32 HRC

-80

-116

 

S32760

550

750

25

270

–

-80

-108

 

S32808

500

700

15

310

32 HRC

-72

-101

 

S32906

650

800

25

310

32 HRC

-94

-116

thickness <0.4”

thickness <0.4”

550

750

-80

-109

thickness >=0.4”

thickness >=0.4”

 

S32950

485

690

15

293

32 HRC

-70

-100

 

S39274

550

800

15

310

32 HRC

-80

-116

 

S82011

515

700

30

293

31 HRC

-75

-101

thickness <=0.187”

thickness <=0.187”

450

655

-65

-95

thickness >0.187”

thickness >0.187”

 

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Manufacturer, Stock Holder, Supplier, Exporter of All types of Flanges. Stainless Steel Flanges, Carbon Steel Flanges, Alloy Steel Flanges, Duplex Flanges, Super Duplex Flanges, Inconel Flanges, Monel Flanges, Hastelloy Flanges, SMO Flanges, Incoloy Flanges, Nickel Alloy Flanges, Titanium Flanges, Alloy 20 Flanges, 17-4 Ph Flanges, 15-5Ph Flanges, Copper, Flanges, Brass Flanges, Cupro Nickel Flanges, Mild Steel Flanges, Low Carbon Alloy Flanges, EN Flanges, Lead Flanges, Gun Metal Flanges, Phosphorus Bronze Flanges, MS Flanges, SS Flanges, CS Flanges

Various Types of Duplex Steel Flanges.

flange forged
Duplex Steel Forged Flanges
5/5

Duplex Forging Flanges

Manufacturing, Stockiest and Exporter of all types of Forged Duplex Flanges

duplex flange
Super Duplex Flanges

Super Duplex Flanges

Super Duplex Forged and Plate Flanges as per DIN, JIS, ASTM, ASME, IS, BS standard

blind flange BLRF
Duplex 2205 Forged Flange

Duplex 2205 Flanges

Manufacturer of Duplex 2205 flanges in Various Pressure Class such as 150#, 300#, 400#, 600#, 900#, 1500# etc.

ms flange manufacturer
Duplex UNS S32750 Flanges

Super Duplex S32750 Grade

Repute Steel is leading Manufacturer of Super Duplex 32750 WNRF, BLRF, SOFF, RTJ, Socketweld, Flanges.

alloy flange
Duplex Steel DIN Flanges

Duplex DIN Standard FLANGES

We r expert in Manufacturing of DIN standard Duplex Flanges in various types and pressure class

flange exporter India
Duplex UNS S32760 Flanges

UNS 32760 Flanges

Super Duplex 32760 Flanges in SORF, BLRF, SWRF, RTJ, WNRF forms in all pressure class

steel flange forged
Duplex UNS S31803 Flanges

Steel 31803 Forged Flange

Repute is Manufacturer of expert quality Duplex UNS 31803 Grade Flanges

BLIND FLANGE MANUFACTURER
Duplex Steel 2507 Flanges

Super Duplex 2507 Flanges

Super Duplex 2507 Grade SORF, WNRF, BLRF, SWRF flanges in 150#, 300#, 600#, 900#, 1500#

CS SLIP ON FLANGE
Duplex Steel Slip On Flanges

DUPLEX SORF flange

We are best quality manufacturer of Duplex and Super Duplex SLIP ON RAISED FACE, SLIP ON FLAT FACE flanges.

blind flanges
Duplex Steel Blind Flanges

DUPLEX BLRF flange

Blind Raised Face flanges, BLIND flat flange in all pressure class like 150#, 300#, 600#, 900#, 1500# etc.

duplex flange
Duplex Steel Weld Neck Flanges

Duplex WNRF Forged Flanges

Duplex 2205, Super Duplex 2507 Weld Neck Raised Flanges manufacturer & Exporter.

SOCKETWELD FLANGE
Duplex Steel Socketweld Flanges

Socketweld Duplex Flange

SWRF, Socketweld Raised Face Flange, Socketweld flat face flanges in Duplex 2205 & Duplex 2507 Grades.

threaded flange
Duplex Steel Threaded Flanges

Threaded Duplex Flange

Forged and plate Threaded Flanges in Duplex & Super Duplex Grades in all pressure class such as 150#, 300#, 600#, 900#, 1500#

reducing flange
Duplex Steel Reducing Flanges

Forged Reducing Flanges

Duplex 2205, Super Duplex 2507, 31803, 32750, 32760, 32550 material Grade Reducing flanges manufacturer

Flat Flange
Duplex Steel Flat Face Flanges

Flat Facing Duplex Flanges

Repute is expert in Manufacturing of Flat facing flanges in Duplex, Super Duplex Flanges in 150,300,600,900,1500 class.

carbon steel flange
Duplex Steel Special Type Flanges

Custom Design Duplex Flanges

We provide customized solution for Duplex and Super Duplex Flanges as per pressure class, facing, thickness, size etc.

Best Quality duplex steel Flanges

Get the lowest Quotation with best Shipping terms for Steel & Duplex flanges click here to ..
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BEst quality

Pipe Lines, Water Transportation Technologies, Petrochemical Refineries, Oil & Gas Industry, Food & Dairy Industry, Nuclear, Energy & Power Industry, Coal & Steel Plants, Fertilizer Industry, Chemical Industry, Mechanical Equipments,  

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Application Industry

Duplex material FLANGES are widely used in all industry. 

  •  Power and Energy
  •  Petroleum and Gas
  •  Mechanical Engineering
  •  Material Engineering
  •  Chemical Engineering
  •  Agriculture Processing

Just sit right back and you’ll hear a tale a tale of a fateful trip that started from this tropic port aboard this tiny ship all of them had hair of gold like their mother the youngest one in curls. Space.

Just sit right back and you’ll hear a tale a tale of a fateful trip that started from this tropic port aboard this tiny ship all of them had hair of gold like their mother the youngest one in curls. Space.

Just sit right back and you’ll hear a tale a tale of a fateful trip that started from this tropic port aboard this tiny ship all of them had hair of gold like their mother the youngest one in curls. Space.

Just sit right back and you’ll hear a tale a tale of a fateful trip that started from this tropic port aboard this tiny ship all of them had hair of gold like their mother the youngest one in curls. Space.

Duplex Steel Flanges Specifications :-

ASME B16.5 Duplex Steel Flanges Size Chart

: 1/2″ (15 NB) to 60″ (1500NB) DN10~DN5000

Duplex Steel Flanges Standards

: ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ASME Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ASME B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092

Duplex Steel Flanges Pressure Rating ANSI: Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Duplex Steel Flanges Pressure standard in DIN: 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
JIS Flanges Pressure standard: 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
UNI Flanges Pressure standard: 6Bar 10Bar 16Bar 25Bar 40Bar
EN Flanges Pressure standard: 6Bar 10Bar 16Bar 25Bar 40Bar
Coating on Carbon Steel Flanges: Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized
Most common types of Duplex Steel Flanges: Forged / Threaded / Screwed / Plate
Test Certificates of Duplex Steel Flanges: EN 10204/3.1B
: Raw Materials Certificate
: 100% Radiography Test Report
: Third Party Inspection Report, etc.
Production technique: Forged, Heat treated and machined
Duplex Steel Flange Facing Type: Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, , Groove
Special design Duplex Steel Flanges: As per your drawing
: AS, ANSI, BS, DIN, JIS, & AWWA
: 15 NB (1/2″) to 1500 NB (60″) in all Facing & Connection types
Test: Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, Ultrasonic flaw detector, Magnetic particle detector
Equipment: Press machine, Bending machine, Pushing Machine, electric beveling machine, Sand-blasting machine etc.
Origin: India / West Europe / Japan / USA / Korean / Italy
Manufacturer of 

: ASME DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc.

: Carbon Steel Flanges: -BS Flange, EN Flange, API 6A Flanges, ASME Flanges, ASME Flanges, DIN Flanges, EN1092-1 Flanges, UNI Flanges, JIS/ KS Flanges, BS4504 Flanges, GB Flanges, AWWA C207 Flanges, GOST Flanges, PSI Flanges
: B.S: BS4504 , BS3293, BS1560, BS10
: AS 2129: Table D; Table E; Table H, Table F
: ASME B16.5, ASME B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
: ASME : ASME B16.5, ASME B16.47(API605), MSS SP44, ASME B16.36, ASME B16.48
: ASME B16.5, ASME B16.47, MSS SP44, ASME B16.36, ASME B16.48
: American standard (ANSI)
: German (DIN)
: British standard (BS) Carbon Steel Flanges, France (AFNOR) Carbon Steel Flanges, Japan (JIS) Carbon Steel Flanges, India (IS) Carbon Steel Flanges, ASME Carbon Steel Flanges etc. 
: 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 Carbon Steel Flanges
: The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276

Duplex 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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Eos an sumo integre recteque

Various Pressure Class Duplex Steel Flanges

  • Duplex Flange pressure Rating according to ANSI Standard
  • Duplex Flange pressure rating according to ASME Standard
  • Duplex Flange Pressure Rating according to DIN Standard
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150# duplex steel flanges
300# Duplex STEEL flanges
400# Duplex steel flanges
600# Duplex steel flanges
900# Duplex steel flanges
1500# Duplex steel flanges
2500# Duplex steel flanges
DIN PN6 DUPLEX steel flanges
DIN PN 10 DUPLEX steel flanges
DIN PN 16 DUPLEX steel flanges
DIN PN 64 DUPLEX steel flanges
CUSTOM THICKNESS DUPLEX steel flanges
DUPLEX HIGH PRESSURE CLASS flanges

Other Materials of Flanges

  • Stainless Steel Flanges
  • Carbon Steel Flanges
  • Alloy Steel Flanges
  • Duplex Flanges
  • Monel Flanges
  • Inconel Flanges
  • Hastelloy Flanges
  • SMO flanges
  • Alloy 20 Flanges
  • Incoloy Flanges
  • Titanium Flanges
  • Aluminium Flanges
  • Copper Flanges
  • Brass Flanges
  • Lead Flanges
  • Zinc Flanges
  • Stainless Steel 304 Flanges
  • Stainless Steel 304L Flanges
  • Stainless Steel 316 Flanges
  • Stainless Steel 316L Flanges
  • Stainless Steel 904L Flanges
  • Stainless Steel 321 Flanges

BROCHURE

Click here to get the BROCHURE of Flanges Dimension, Materials details

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Flange Types

Repute Steel & Engineering co. is one of Best Manufacturer, Stockiest, Supplier and Biggest Exporter of Flanges. Being ISO 9001 Certified Repute Steel Focus on the Quality of the Product and Material. Flanges are widely used in all major Industrial Activities including Oil & Gas Industries, Petrochemical Refineries, Water Pipe Lines, Nuclear Reactors, Food Industry, Power Production Companies, Chemical Process Equipments, Heat Exchangers, Chemical & Fertilizers Companies, Instrumental industries, General Fabrication applications etc. We are among the largest Producer of Metal Flanges in India.

Best Quality Forge Flange Exporter

Repute Steel is engage in fulfill huge demand of Flanges along with Accurate Dimensions, highest Quality Standard as per International Material Specifications. We are Expert in Manufacturing of WELD NECK Flange, SLIP ON Flanges, BLIND Flanges, SOCKETWELD Flanges, SCREWED Flanges, THREADED Flanges, LAP JOINT Flanges, RTJ Flanges, FLAT Flanges, WELDO – NIPPO Flanges, SPECTACLE Flanges, HIGH HUB Flanges, LONG WELD NECK Flanges, RAISED FACE Flanges, PLATE Flanges.

flange manufacturing process

Our Advantages

Best Quality Metals

Flange materials : Stainless Steel, Carbon Steel, Duplex, Super Duplex, Mild Steel, Inconel, Monel, Hastelloy, SMO, Titanium, Bronze, Copper, Brass, Aluminium, Lead, Nickel Alloys etc.

Accurate Dimension

Dimensions of Flanges as per ANSI, ASME, DIN, JIS, AWWA, ASA, API 605, BS,  ANSI B16.47 SERIES A & B, MSS SP44, ASME / ANSI B16.5, ASME B16.48 / API 590, ANSI B16.10 / B 16.36,  API 6A etc.

All types of Flanges

Slip On Flange (SORF) (SOFF), Blind Flanges (BLRF) (BLFF), Weld Neck Flange (WNRF), Long Weld Neck (LWNRF), Threaded, Socket Weld (SW), Lap Joint (LJ), Ring Type Joint (RTJ), Flat Flange etc.

Repute Steel & Engineering Co. is known worldwide for its Quality, Commitment, Unique Solutions, Innovations in Metal Industry. Repute Steel & Engg Co. always committed for Green Environment sustainability, Recycling solutions and support.

Repute steel is committed for BEST QUALITY Flanges for various Industries for seamless process, production, fabrication and manufacturing.

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