Size : Size: 1/2” to 48” Class : 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS DIN Standard ND-6,10, 16, 25, 40 Etc.
SPECIFICATIONS AS PER THE INTERNATIONAL STANDARD ASTM, ASME, API, AISI, BS, ANSI, DIN, JIS, MSSP, NACE
MATERIALS : Duplex Steel Flanges
ASTM A 182 – F 51 UNS S31803, S32750, S31500
Application: Aerospace, Nuclear Engineering, Chemical Industry, Heat Treating Industry
PRODUCTION CAPACITY : Forged 5000 MT/p.a. Machined 2000 MT/p.a.
Standard type Flanges:
Long weld neck
ASTM A182 F51 / 31803/ 1.4462
ASTM A182 F53/F55
ASTM A182 F44 / 31254
ANSI B16.5 (150lb - 2,500lb)
B16.47 SERIES A & B (150lb - 2,500lb)
BS3293 (150lb - 2500lb)
API 6A (2,000lb - 20,000lb)
API 17D (2,000lb - 20,000lb)
BS4504/EN1092 (PN6 - PN160)
BS10 TABLE D7K
¼" NB to 72"NB
6MM to 1800MM NB
All flanges can be supplied with grooves, back faces, bevels and bores inlaid with a variety of alloys. This is carried out to approved procedures by qualified welders and, as usual full certification is available. All levels of NDT can be accommodated
To customer drawings
Modified specifications (Analysis restrictions, extra testing, inspection, heat treatment)
Heavy wall thickness
Know Your API6A From Your ANSI b16.5
The use of duplex and super duplex stainless steel in pipes and pipe flanges is popular, because of the extra strength these materials provide.
If you're in the business of buying pipes or pipe fittings, you'll appreciate the importance of getting materials right in flanges, and buying the right ones for what you need.
Because there are so many different kinds of flange across the world, there are global standards to make life easier, from api 6a to ansi b16.5.
With so many different pipe flanges around, from weld neck flanges to blind flanges and api flanges, it's worth understanding the differences between them all, and what the different standards mean.
The ansi designations include ansi b16.5, which covers pressure-temperature ratings, materials, dimensions, tolerances, marking, testing, and methods of designating openings for pipe flanges and flanged fittings.
The ansi b16.5 designation is unique, and not interchangeable with a flange of a different classification.
Weld Neck Flanges
Weld neck flanges are the most popular type of high pressure pipe flange The tapered hub design of weld neck flanges provides an extremely strong connection and weld neck flanges can be repeatedly manipulated and bent without compromising the material and or connection quality. Weld neck flanges also have the advantage of being highly resistant to extreme high and low temperatures.
Blind flanges are often used to seal or blank off the ends of valves and pipes. Blind flanges are always round and have bolt holes around their perimeter. And blind flanges are also known for being very economical.
API flanges are manufactured for high strength operating refinery systems with products such as oil and explosive gases. API flanges are also made with a higher operating pressure, which sets them apart from say an ansi b16.5 flange.
Within api flanges, there are further categories, such as api 6a.
Whether you're after blind flanges or need an api 6a, make us at Citizen Metals Pvt. Ltd. your first port of call. We have a wide range of api flanges in stock, and can supply all of them with grooves, back faces, bevels and bores inlaid with a variety of alloys.
It doesn't matter how quickly you need your api 6a or other flanges, or where you are based in the world- we can help out no matter what specification you need. Our flanges conform to most recognised standards. We can even work to your drawings.
To make our api 6a and other flanges, we only use premium quality materials including duplex, super duplex, nickel alloy, 6 moly stainless steel and titanium. Everything is produced at our modern manufacturing facility.
We also operate a 24-hour emergency breakdown call-out service, giving you extra peace of mind.
Our rates are competitive, and we keep our customer at the heart of the process at all times. So check us out before you do anything else!
Duplex 2205 is a nitrogen enhanced duplex stainless steel that was developed to combat common corrosion problems encountered with the 300 series stainless steels. “Duplex” describes a family of stainless steels that are neither fully austenitic, like 304 stainless, nor purely ferritic, like 430 stainless. The structure of 2205 duplex stainless steel consists of austenite pools surrounded by a continuous ferrite phase. In the annealed condition, 2205 contains approximately 40-50% ferrite. Often referred to as the work horse grade, 2205 is the most widely used grade in the duplex family of stainless steels.
The advantage of a duplex structure is that it combines the favorable qualities of a ferritic alloy (stress corrosion cracking resistance and high strength) with those of an austenitic alloy (ease of fabrication and corrosion resistance).
Usage of 2205 Duplex stainless steel should be limited to temperatures below 600° F. Extended elevated temperature exposure can embrittle 2205 stainless.
2205 duplex stainless steel is a cost effective solution for many applications where the 300 series stainless steels are susceptible to chloride stress corrosion cracking. Stress corrosion cracking occurs when stainless steels are subjected to tensile stress, while in contact with solutions containing chlorides. Increasing temperatures also increase the susceptibility of stainless steels to stress corrosion cracking.
The combination of chromium, molybdenum and nitrogen convey the good resistance of 2205 to chloride pitting and crevice corrosion. This resistance is extremely important for services such as marine environments, brackish water, bleaching operations, closed loop water systems and some food processing applications. The high chromium, molybdenum and nitrogen contents of 2205 provide corrosion resistance superior to common stainless steels, such as, 316L and 317L in most environments and Citizen Metals has been actively involved in ensuring the best quality of the same to our clients.
This exotic alloy is used in oil and gas exploration, chemical processing industries also make use of this alloy. Most of the processing equipment utilizes Duplex 2205. It is also used by storage and transportation units of industries. Pulp and paper digesters, liquor tanks and paper machines also use Duplex 2205. It is highly suitable for usage in marine environments.
What are the characteristics of Duplex 2205?
High resistance to chloride stress corrosion cracking
Resistance to chloride pitting and crevice corrosion
Good general corrosion resistance
Good sulfide stress corrosion resistance
Good weldability and workability
Why Citizen Metals is best Supplier of 2205 Duplex Steel Flanges ?
at Citizen Metals we ensure that our clients get a world class buying experience. Our mill reports are in accordance with EN10204 NACE 3.1, NACE 3.2. Our products go through appropriate testing, both in Government and private laboratories. Thus, even third party inspection consolidates our claims about superior quality. Our team adopts professional packaging methods to ensure that the products reach our clients in their best form, without getting affected by the adversities of the environment. If, by any chance (however small it may be), the products fail to satisfy the customers, we act on our product replacement scheme to ensure that they receive better. We also enjoy ISO 9001:2008, ISO 14001:2004, OHSAS 18001:2007 Certifications. All these factors have helped us gain the trust of consumers and we are continuously growing as top 10 suppliers of 2205 Duplex Stainless Steel Flanges in INDIA.
We are authorised Dealer & Distributor of renowned manufacturers of 2205 Duplex Stainless Steel Flanges
we are having ready stock & dealership of below manufacturers:
OUTOKUMPU ( FINLAND & INDIA ) : Duplex Steel 2205 & 2507 Coil and sheet, Bar, Welded pipe & Plate Manufacturers ---
MEGAMEX ( TEXAS USA ) : Mega Mex supplies LDX2101, 2205, Ferralium 255, Zeron 100 and 2507 in the form of plate, sheet, strip, bar, pipe, tubing, pipe fittings, flanges and weld wire.
SCHOELLER BLECKMANN ENGLAND & DUBAI : Schoeller-Bleckmann (UK) is a major stockholder and distributor of Stainless Steel Tube, Pipe & Hollow Bar.
SANDVIK ( SWEDEN & INDIA ) : Duplex stainless steels / Sandvik SAF 2507, Sandvik SAF 2707 HD, Sandvik SAF 3207 HD / TUBE, PIPE, FITTINGS AND FLANGES Manufacturers in SWEDEN
(Duplex stainless steel plate USE : Duplex stainless steel plate is often used for storage tanks. High corrosion and erosion resistance is a must for storage tanks, whether the designer wants to prevent leakage during desalinization, avoid contamination in pharmaceutical or food processing, or store chips as well as black and white liquor for the pulp and paper industry.)
We have exported our material to numerous countries in the world including but not limited to Kuwait, Peru, UK, Singapore, Poland, Iraq, Malaysia, Serbia, Turkey, Yemen, Australia, Lebanon, Oman, Srilanka, Egypt, Angola, Canada, Madagascar, Saudi Arabia, Indonesia, UAE, Italy, Jordan, Qatar, USA, Brazil, Nigeria, South Africa, Kuwait, Mexico, New Zealand, Netherlands, Germany, Venezuela, Iran, Denmark, Spain, Bahrain & many other countries....