2205 Duplex Stainless Steel Flanges

ASTM A790 S32205 pipe flange Supplier in India and Duplex 2205 Blind Raised Face Flange Stock for sale

ASTM a182 gr f51 uns s31803 flange manufacturer india also check SAF 2205 Slip on Flanges Price List before Buy 2205 material

Duplex 2205 stainless steel has a two-phase microstructure i.e., ferritic and austenitic. Chemically, the  Duplex 2205 Flanges Stock contains about 22% chromium, 3% molybdenum, 5 to 6% nickel as an alloyed stainless steel. Duplex 2205 Socket Weld Flange is the most widely used stainless steel grade. The main  characteristic of the Uns S31803 Forged Flange is its high yield strength, which is almost double  than that of the standard austenitic stainless steel grades.

Duplex Steel 2205 Flanges also demonstrates good mechanical properties such as fatigue strength, as well as excellent resistance to stress corrosion cracking, pitting, erosion, crevice, and general corrosion in severe environments.

Typical applications of the  Asme Sa790 S32205 Welding Neck Flange include their use in the following fields -

Duplex 2205 Blind Raised Face Flange is used in the processing of Chemical, transport and storage – tanks, piping, pressure vessels, and heat exchangers. The Astm A182 F51 Duplex Steel Blrf Flange finds application in the Oil and gas industry, where they are used in exploration and processing equipment such as  – tubing, piping, and heat exchangers. Since the Astm A182 Gr F51 Uns S31803 Flange has good resistance to a wide range of chemicals, these flanges are used in the Marine and other high chloride environments. Effluent scrubbing systems, Equipment’s in the Pulp and paper industry are mostly exposed to acid. Because the Saf 2205 Slip On Flanges has good resistance to acidic conditions, they are used in equipment’s such as – digesters, bleaching equipment, as well as stock-handling systems. Other areas that use the 2205 Material include - Food processing equipment, Biofuels plants  and Cargo tanks for ships and trucks

Due to a high chromium, molybdenum, and nitrogen content, in the A790 S32205, these Duplex 2205 Flanges demonstrates superior corrosion resistant properties as compared to other austentic stainless steel grades such as 316 and 316L in quite a few environments. The addition of elements such as Chromium, molybdenum, and nitrogen content in the Alloy 2205 Sorf Flange  also provides a high resistance to pitting as well as crevice corrosion. These elements also aid in making the Saf 2205 Blind Flange resistant to even  oxidizing and acidic solutions.

Uns S32205 Pipe Flange is resistant to chloride stress related corrosion cracking. Especially when the Alloy 2205 Blrf Flange is exposed to temperatures of up to about 302°F or 150°C. The presence of ferrite in the Saf 2205 Sorf ensures a good performance even in caustic environments. Heat resistance of the A790 S32205 Pipe Flange is similar to other duplex stainless steel grades. Flanges produced from duplex 2205 has good resistance  to oxidation at high or elevated temperatures. Even though the Astm A182 Uns S31803 Material is subject to embrittlement on exposure to temperatures that are above 572°F  or 300°C. This holds true when duplex 2207 is  exposed for short periods of time; Hence, use of Duplex 2205 stainless steel flanges is not recommended at temperatures above 572°F  or 300°C.

The Astm A790 S32205 Pipe Flange Supplier In India note that this grade of duplex stainless steels are known to possess good weldable properties. Although this stainless steel has good weldable properties, the 2205 Duplex Stainless Steel Flanges  is generally not welded without the use of filler metal. Welding this alloy without a filler metal may result in excessive ferrite. The heat treatment done on the Astm A182 Uns S31803 is by performing  annealing at a temperature range of 1868 to 2012°F. Since, duplex grade of stainless steel cannot be hardened by heat treatment, they could be work hardened. A special consideration is required to compensate for a higher coefficient of thermal expansion in order to avoid warping and distortion of these 2205 Duplex Flanges.

 

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Please note that the availability of India vs import manufacturers may vary.

 

 

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Duplex 2205 Flanges Sizes according to ASME/ASTM B16.5 – B16.36 – B16.48

• Class 150(lb) up to 24"
• Class 300(lb) up to 20"
• Class 600(lb) up to 20"
• Class 900(lb) up to 16"
• Class 1500(lb) up to 10"
• Class 2500(lb) up to 8"

Duplex 2205 Flanges Sizes according to DIN – EN1092-1 – EN1759-1 – NFE – BS10/BS4504 – ISO7005-1

• PN2.5/ PN06/ PN10 up to DN800
• PN16/ PN25/ PN40 up to DN600
• PN63/ PN100 up to DN500
• PN160 /PN250 up to DN300
• PN320/ PN400 up to DN200

NPS related to nominal diameter, DN in international standards, relations as below:

Note: For NPS ≥ 4, the related DN = 25 multiplied by the NPS number. For example NPS 10 is DN250.

 

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Duplex 2205 Flanges Flange Standards / Types and Pressure Class :

 

 

 

Wide Sizes in Duplex 2205 Flanges check SAF 2205 Blind Flange dimensions and Alloy 2205 SORF Flange weight chart in kg

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15mm (1/2") Duplex 2205 Flange Weight Chart

 

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Click on below links for Duplex 2205 Flanges dimensions

•  MSS SP44 FLANGES
•  API FLANGES
•  ISO FLANGES
•  BS 4504 Flanges
•  JIS B2220 FLANGES
•  BS 10 Flanges
•  ANSI B16.5 FLANGES
•  ANSI B16.47 FLANGES
•  SABS / SANS 1123 FLANGES
•  GOST 12820 80 FLANGES
•  EN1092-1 FLANGES PN6-PN40
•  AWWA C207 FLANGES
•  AUSTRALIAN FLANGES
•  KOREAN FLANGES

 

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Flange Schedule/Class	Pipe Size - Pipe Flanges	Flange Connection Type	Flange Material	Max. Pressure
ASME B16.5 Class 150	1/2"	FNPT	Super Duplex	150 psi
ASME B16.5 Class 150	1/2"	Socket Weld	Forged Super Duplex	275 psi
ASME B16.5 Class 150	1/2"	Welded	Super Duplex	150 psi
ASME B16.5 Class 150	3/4"	FNPT	Super Duplex	150 psi
ASME B16.5 Class 150	3/4"	Socket Weld	Forged Super Duplex	275 psi
ASME B16.5 Class 150	1-1/4"	Socket Weld	Forged Super Duplex	275 psi
ASME B16.5 Class 150	1-1/2"	Socket Weld	Forged Super Duplex	275 psi
ASME B16.5 Class 150	2"	FNPT	Super Duplex	150 psi
ASME B16.5 Class 150	2"	Socket Weld	Forged Super Duplex	275 psi
ASME B16.5 Class 150	2-1/2"	Socket Weld	Forged Super Duplex	275 psi
ASME B16.5 Class 150	3"	Socket Weld	Forged Super Duplex	275 psi
ASME B16.5 Class 150	4"	FNPT	Super Duplex	150 psi
ASME B16.5 Class 150	4"	Socket Weld	Forged Super Duplex	275 psi
ASME B16.5 Class 300	1/2"	Slip On	Forged Super Duplex	720 psi
ASME B16.5 Class 300	1/2"	Slip On	Forged Super Duplex	720 psi
ASME B16.5 Class 300	1"	Slip On	Forged Super Duplex	720 psi
ASME B16.5 Class 300	1"	Slip On	Forged Super Duplex	720 psi
ASME B16.5 Class 300	1-1/4"	FNPT	Forged Super Duplex	720 psi
ASME B16.5 Class 300	1-1/4"	Slip On	Forged Super Duplex	720 psi
ASME B16.5 Class 300	1-1/2"	Slip On	Forged Super Duplex	720 psi
ASME B16.5 Class 300	1-1/2"	Slip On	Forged Super Duplex	720 psi
ASME B16.5 Class 300	2"	Slip On	Forged Super Duplex	720 psi
ASME B16.5 Class 300	2"	Slip On	Forged Super Duplex	720 psi
ASME B16.5 Class 300	2-1/2"	Slip On	Forged Super Duplex	720 psi
ASME B16.5 Class 300	2-1/2"	Slip On	Forged Super Duplex	720 psi
ASME B16.5 Class 300	3"	Slip On	Forged Super Duplex	720 psi
ASME B16.5 Class 300	3"	Slip On	Forged Super Duplex	720 psi
ASME B16.5 Class 300	4"	Slip On	Forged Super Duplex	720 psi
ASME B16.5 Class 300	4"	Slip On	Forged Super Duplex	720 psi

 

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Duplex 2205 Flange thickness calculation as per ASME B31.3 Section 304.5.2

•  The minimum thickness, considering the manufacturer ’s minus tolerance, shall be not less than tm
•  To calculate t, the rules of Section VIII, Division 1, UG-34 may be used
•  The minimum required thickness of flat unstayed circular heads, covers and blind flanges attached by bolts causing an edge moment in which case the thickness shall be calculated by the following formula:

 

Where,

•  C = a factor depending upon the method of attachment of head, shell dimensions, and other items as listed in (d) below, dimensionless. The factors for welded covers also include a factor of 0.667which effectively increases the allowable stress for such constructions to 1.5S. (in our case C= 0.3)
•  d = diameter, or short span, measured as indicated in Fig. UG-34.
• E = joint efficiency, from Table UW-12, of any Category A weld as defined in UW-3(a)(1).
•  hG = gasket moment arm, equal to the radial distance from the center line of the bolts to the line of the gasket reaction
•  S = maximum allowable stress value in tension from applicable table of stress values referenced by UG-23.
•  P = internal design pressure
•  W = total bolt load given for circular heads for Formulas (3) and (4), 2-5(e).

 

 

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