Duplex Flanges Manufacturer & Exporter in India

Ragnar Metals & Tubes is a leading Duplex Flanges manufacturer and exporter in India supplying ASTM A182 F51, F53, F55 (UNS S31803, S32205, S32750, S32760) flanges worldwide. Our duplex and super duplex flanges are widely used in oil & gas, offshore platforms, marine, petrochemical, desalination and chemical industries.

Available Duplex & Super Duplex Grades

Duplex UNS S31803 (F51)
Duplex UNS S32205 (F60)
Super Duplex UNS S32750 (F53 / 2507)
Super Duplex UNS S32760 (F55 / Zeron 100)

Types of Duplex Flanges We Manufacture

Weld Neck Flanges
Slip On Flanges
Blind Flanges
Socket Weld Flanges
Threaded Flanges
Lap Joint Flanges
RTJ Flanges
Orifice Flanges
Spectacle Blind Flanges
Plate Flanges

Standards & Specifications

ASTM A182
ASME SA182
ASME B16.5
ASME B16.47 Series A & B
EN 1092-1
DIN / BS / ISO / JIS Standards
NACE MR0175 / ISO 15156

Pressure Ratings

Class 150, 300, 600, 900, 1500, 2500 in Raised Face (RF), Flat Face (FF) and Ring Type Joint (RTJ).

Applications

Offshore Oil Platforms
Subsea Equipment
Desalination Plants
Chemical Processing
Marine Systems
Heat Exchangers
Power Plants

Duplex 2101 Flanges

Duplex S32205 Flanges

Duplex Flanges

Duplex 2205 Flanges

Duplex & Super Duplex Exporter Flanges

Duplex Steel Flanges

Looking for custom sizes or bulk export supply? Contact our sales team today.

Frequently Asked Questions – Duplex & Super Duplex Flanges

1. Are you a Duplex Flanges manufacturer in India?

Yes, Ragnar Metals & Tubes is a leading Duplex and Super Duplex Flanges manufacturer in India supplying ASTM A182 F51, F53, F55 grades worldwide.

2. What grades of Duplex Flanges do you supply?

We supply UNS S31803, S32205 (Duplex 2205), UNS S32750 (Super Duplex 2507), and UNS S32760 (Zeron 100) flanges.

3. What flange types are available?

We manufacture Weld Neck, Slip On, Blind, RTJ, Socket Weld, Threaded, Lap Joint, Spectacle Blind, Plate and Orifice Flanges.

4. What standards do your Duplex Flanges follow?

Our flanges conform to ASTM A182, ASME SA182, ASME B16.5, ASME B16.47, EN 1092-1, DIN, BS and ISO standards.

5. What pressure classes are available?

Class 150, 300, 600, 900, 1500 and 2500 in Raised Face (RF), Flat Face (FF) and RTJ.

6. Do you export Duplex Flanges worldwide?

Yes, we export Duplex and Super Duplex Flanges to USA, Canada, Saudi Arabia, UAE, Qatar, Kuwait, Oman, Europe, Africa and Southeast Asia.

7. Are your flanges NACE compliant?

Yes, we supply NACE MR0175 / ISO 15156 compliant Duplex and Super Duplex flanges for sour service applications.

8. What industries use Duplex Flanges?

Oil & Gas, Offshore, Marine, Petrochemical, Desalination, Power Generation and Chemical Processing industries.

Need Duplex Flanges for Your Project?

Contact Ragnar Metals & Tubes for bulk pricing, technical support, and fast worldwide delivery.

Request Export Quote

We Export Stainless Steel & Alloy Products to 50+ Countries Worldwide

Global Export Destinations
United States	Canada	Mexico	United Kingdom	Germany	Netherlands
Italy	Spain	South Africa	Australia	India	Korea
United Arab Emirates	Saudi Arabia	Qatar	Kuwait	Oman	Bahrain
Singapore	Malaysia	Indonesia	Dubai	Riyadh	Dammam

Why Choose Ragnar Metals & Tubes?

✔ Advanced spool fabrication facility
✔ Certified welding procedures (WPS/PQR)
✔ NDT Testing – RT, UT, PMI, Hydro Testing
✔ Full project documentation support
✔ Fast global export shipping
✔ Competitive pricing for bulk projects

We export duplex and super Duplex Flanges to USA, Europe, Middle East, Africa and Southeast Asia with safe packaging and on-time delivery.

Looking for a Reliable Duplex Flanges Exporter from India?

Contact Ragnar Metals & Tubes for bulk pricing, technical support, and fast worldwide delivery.

Request Export Quote

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