Duplex Steel 2205 Flanges

Duplex Steel 2205 weld neck Flange, ASTM A182 Duplex Stainless Steel 2205 Blind Flange, 1.4462 Socket Weld Flanges, UNS S32205 slip on Flanges Supplier, ANSI B16.5 Duplex Steel S31803 Threaded Flanges, Duplex 2205 Spectacle blind Flanges Manufacturer in India.

Duplex 2205 flanges are a type of flanges made from Duplex 2205, a two-phase, ferritic, austenitic 22% chromium, 3% molybdenum, 5-6% nickel alloy. This alloy is highly resistant to corrosion, especially in harsh environments, making it an ideal material for various industrial applications. The UNS S31803 and UNS S32205 are two grades of Duplex 2205.

UNS S31803 is a duplex stainless steel that combines high mechanical strength with excellent corrosion resistance. It has a microstructure consisting of equal proportions of austenite and ferrite phases, which provides good resistance to stress corrosion cracking and pitting corrosion. UNS S32205 is a higher grade of Duplex 2205 with improved mechanical properties, such as higher yield strength and better resistance to corrosion fatigue.

Duplex 2205 flanges are commonly used in applications that require high strength, good corrosion resistance, and resistance to stress corrosion cracking. They are widely used in the oil and gas industry, chemical processing, pulp and paper industry, marine engineering, and other applications where corrosive environments are present.

Duplex 2205 flanges are available in various sizes, shapes, and types, including slip-on, weld neck, blind, threaded, lap joint, and socket weld. They are also available in various standards, such as ANSI, ASME, ASTM, DIN, and EN. When selecting Duplex 2205 flanges, it is important to consider the specific requirements of the application, such as temperature, pressure, and corrosive environment.

ANSI/ASME B16.5 Duplex Steel 2205 Flanges Supplier

Ready Stock of 2205 Duplex Steel Socket Weld Flange, Check Sizes And Dimensions Of ASTM A182 Forged Flanges, Suppliers of Duplex Steel S31803 Welding Neck Flange, Lap joint Flanges, Table D & Table E Duplex SAF 2205 Flange, ISO Approved DSS 2205 Blind Flanges, Duplex 2205 Spectacle Blind Flanges.

Q: What is duplex stainless steel type 2205?
A: Duplex stainless steel type 2205, also known as UNS S32205/S31803, is a corrosion-resistant alloy that belongs to the duplex family of stainless steels. It combines the desirable properties of both austenitic and ferritic stainless steels, offering high strength, good weldability, and excellent resistance to corrosion and stress corrosion cracking.

Q: What is 2205 stainless steel used for?
A: 2205 stainless steel finds applications in various industries due to its unique properties. Some common uses include:

  1. Chemical processing equipment: It is resistant to corrosive chemicals, making it suitable for vessels, tanks, and pipes.
  2. Oil and gas industry: It is used in offshore platforms, pipelines, and components exposed to harsh environments.
  3. Marine applications: It is employed in shipbuilding, offshore structures, and propeller shafts.
  4. Desalination plants: Its corrosion resistance makes it ideal for use in seawater desalination plants.
  5. Structural components: It is used in bridges, pressure vessels, and storage tanks.
  6. Pulp and paper industry: It is utilized in digesters, bleach plants, and piping systems.
  7. Food processing: It is suitable for equipment exposed to acidic or chloride-containing food products.

Q: What is the difference between S32205 and 2205?
A: S32205 and 2205 both refer to the same duplex stainless steel grade. S32205 is the ASTM designation, while 2205 is the common industry name for the material. They have identical chemical compositions and properties, and the terms are often used interchangeably.

Q: What is the difference between duplex 2205 and 316 SS?
A: Duplex 2205 and 316 stainless steel (316 SS) are both stainless steels, but they belong to different families and have distinct characteristics:

  1. Composition: Duplex 2205 is a duplex stainless steel alloy, consisting of approximately 22% chromium, 5-6% nickel, 3% molybdenum, and other elements, such as nitrogen. In contrast, 316 SS is an austenitic stainless steel containing 16-18% chromium, 10-14% nickel, and 2-3% molybdenum.
  2. Corrosion resistance: Duplex 2205 offers higher resistance to localized corrosion, such as pitting and crevice corrosion, due to its higher chromium and molybdenum content. 316 SS is also corrosion-resistant but may be more susceptible to certain types of corrosion in specific environments.
  3. Strength: Duplex 2205 has significantly higher strength compared to 316 SS, making it suitable for applications requiring greater mechanical strength.
  4. Price: Duplex 2205 tends to be more expensive than 316 SS due to its enhanced properties and higher alloy content.
  5. Weldability: While both materials are generally weldable, duplex 2205 is known for its better weldability and lower risk of sensitization during welding.

Duplex 2205 Flange Specifications

Size Range

1/2" (15 NB) to 48" (1200NB) DN10~DN5000

Class / Pressure Rating

150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Standards / Dimensions

ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, BS, GOST, MSS SP-44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605

Connection Type

Ring Joint Flange (RTJ), Flat Face Flange (FF), Raised Face Flange (RF), Male and Female Flange (M & F), Lap Joint Flange, Large and Small Tongue-and-Groove Flange (T & G)

Material Standards


ASTM A182 Duplex Steel 2205 Flanges Equivalent Grade

Duplex 22051.4462S31803 / S32205

ANSI B16.5 Duplex 2205 Flanges Chemical Composition

S318030.030 max2.00 max1.00 max0.030 max0.020 max22.0 – 23.03.0 – 3.54.50 – 6.500.14 – 0.2063.72 min
S322050.030 max2.00 max1.00 max0.030 max0.020 max21.0 – 23.02.50 – 3.504.50 – 6.500.8 – 0.2063.54 min

ASTM A182 Duplex 2205 Flanges Mechanical Properties

GradesDensity (g/cm 3)Density (lb/in 3)Melting Point (°C)Melting Point (°F)
S31803 / S322057.8050.2851420 – 14652588 – 2669

Find the largest ready stock of Duplex Steel S32205 Flanges, Duplex 2205 Reducing Flanges Stockist, UNS S31803 Flanges Exporter, 2205 Duplex Steel Flange Price List, Check Availability of ASTM A182 Duplex Stainless Steel S31803 Threaded Flanges, ASME SA182 Duplex Steel 2205 Slip On Flanges Dealer, ASME SA182 Spectacle Blind Flanges, Duplex Steel 2205 BLRF Flanges Supplier, Duplex Steel 2205 Forged Flanges in Mumbai, India.

Duplex Stainless Steel 2205 Flanges Dimensions & Size

Duplex 2205 Flanges Dimensions
Dia. of
Dia. of
Dia. of
Bolt Holes

Duplex Steel S32205 Flanges Weight Chart

15mm (1/2″) Duplex S32205 Flange Weight Chart
StandardClassDiameterBolt Circle DiameterNumber of BoltsBolt SizeDiameter of Bolt Hole
ANSI B16.5 FlangesANSI 150 Flanges896041316
ANSI 300 Flanges956741316
ANSI 600 Flanges956741316
ANSI 900 Flanges1218341922
ANSI 1500 Flanges1218341922
AS4087 FlangesPN14 Flanges95674M1214
AS 2129 FlangeTable C Flanges956741314
Table D Flanges956741314
Table E Flanges956741314
Table F Flanges956741314
Table H Flanges1148341617
Table J Flanges1148341617
ISO 7005 (DIN) FlangePN6 Flanges80554M1011
PN10 Flanges95654M1214
PN16 Flanges95654M1214
PN20 Flanges9060.54M1416
PN25 Flanges95654M1214
PN40 Flanges95654M1214

Duplex Steel S31803 Flange Pressure Ratings

NPS (Nominal Pipe Size)SORF (Slip On)NPT (Threaded)SWRF (Socket Weld)Loose (Lap Joint)BLRF (Blind)WRNR (Weld Neck)

Duplex 2205 Flanges Dimensional Size Chart

Normal Sizes In inchDimensionDuplex S32205 Flanges Dimensional Sizes 1/2 inch. to 2 1/2 inch.
Class 125
Class 150
Class 300Class 400Class 600Class 900Class 1500Class 2500
1/2A3 1/288.93 3/495.23 3/495.23 3/495.24 3/41214 3/41215 1/4133.4
b7/1611.19/1614.39/1614.39/1614.37/822.27/822.21 3/1630.2
D21 3/834.91 3/834.91 3/834.91 3/834.91 3/834.91 3/834.91 3/834.9
D12 3/860.32 5/866.72 5/866.72 5/866.73 1/482.63 1/482.63 1/288.9
3/4A3 7/898.44 5/8117.54 5/8117.54 5/8117.55 1/81305 1/81305 1/2139.7
b1/212.75/815.95/815.95/815.9125.4125.41 1/431.8
D21 11/1642.91 11/1642.91 11/1642.91 11/1642.91 11/1642.91 11/1642.91 11/1642.9
D12 3/469.83 1/482.53 1/482.53 1/482.53 1/288.93 1/288.93 3/495.2
1A4 1/41084 7/8123.84 7/8123.84 7/8123.85 7/8149.25 7/8149.26 1/4159
b9/1614.311/1617.511/1617.511/1617.51 1/828.61 1/828.61 3/834.9
D13 1/879.43 1/288.93 1/288.93 1/288.9410241024 1/4108
1 1/4A4 5/8117.55 1/4133.45 1/4133.45 1/4133.46 1/41596 1/41597 1/4184.2
b5/815.93/41913/1620.613/1620.61 1/828.61 1/828.61 1/238.1
D22 1/263.52 1/263.52 1/263.52 1/263.52 1/263.52 1/263.52 1/263.5
D13 1/288.93 7/898.43 7/898.43 7/898.44 3/81114 3/81115 1/8130
d5/815.93/4193/4193/419125.4125.41 1/828.6
1 1/2A51276 1/8155.66 1/8155.66 1/8155.67177.87177.88203
b11/1617.513/1620.67/822.27/822.21 1/431.81 1/431.81 3/444.5
D22 7/873 982 7/8732 7/8732 7/8732 7/8732 7/8732 7/873
D13 7/844 1/21144 1/21144 1/21144 7/81244 7/81245 3/4146
d5/8. 15.97/822.27/822.27/822.21 1/828.61 1/828.61 1/431.8
2A6152.46 1/2165.16 1/2165.16 1/2165.18 1/2215.98 1/2215.99 1/4234.9
b3/4197/822.2125.4125.41 1/238.11 1/238.1250.8
D23 5/892.13 5/892.13 5/892.13 5/892.13 5/892.13 5/892.13 5/892.1
D14 3/41215127512751276 1/2165.16 1/2165.16 3/4171
d3/4193/4193/4193/419125.4125.41 1/828.6
2 1/2A7177.87 1/2190.57 1/2190.57 1/2190.59 5/82449 5/824410 1/2266.7
b7/822.2125.41 1/828.61 1/828.61 5/841.31 5/841.32 1/457.2
D24 1/8104.84 1/8104.84 1/8104.84 1/8104.84 1/81054 1/81054 1/8105
D15 1/2139.75 7/8149.25 7/8149.25 7/8149.27 1/2190.57 1/2190.57 3/4197
d3/4197/822.27/822.27/822.21 1/828.61 1/828.61 1/431.8

Grade 2205 Duplex Steel Flange Dimensional Tolerance

Outside DiameterWhen O.D. is 24″ or less ±1.6mm﹡
Inside Diameter10″ and smaller ±0.8mm
12″ thru 18″ ±1.6mm
20″ and larger +3.2mm, -1.6mm
Outside Diameter of hub5″ and smaller +2.4mm, -0.8mm﹡
6″ and larger +4.0mm, -0.8mm
Diameter of contact face1/16″ rasied face tongue and groove male, female ±0.8mm
1/4″ rasied face tongue and groove male, female ±0.4mm
Diameter of hub at basewhen hub base is 24″ or smaller ±1.6mm﹡
Diameter of hub at point of welding5″ and smaller +2.4mm, -0.8mm
6″ and larger +4.0mm, -0.8mm
DrillingBolt circle ±1.6mm
Bolt hole spacing ±0.8mm
Eccentricity of bolt circle with respect to facing2 1/2″ and smaller: 0.8mm, max﹡
Eccentricity of bolt circle with respect to bore3″ and larger: 1.6mm, max﹡
Thickness18″ and smaller +3.2mm, -0mm
20″ and larger +4.8mm, -0mm
Length of thru hub10″ and smaller ±1.6mm
12″ and larger ±3.2mm

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ASTM A182 Duplex Steel 2205 Flanges Applications

Australia, Afghanistan, Algeria, Angola, Argentina, Armenia, Azerbaijan, Bahrain, Bangladesh, Benin,
Bhutan, Botswana, Brazil, Brunei, Burkina Faso, Cambodia, Cameroon, Canada, Central Africa Republic,
Chad, Chile, Colombia, Cuba, Cyprus, DRC, Djibouti, Egypt, Equatorial Guinea, Eritrea, Eswatini,
Ethiopia, Fiji, Finland, France, Georgia, Germany, Ghana, Greece, Hungary, Iceland, Indonesia, Iran,
Iraq, Ireland, Israel, Italy, Japan, Jordan, Kazakhstan, Kenya, Kuwait, Kyrgyzstan, Laos, Lebanon,
Lesotho, Liberia, Libya, Lithuania, Madagascar, Malawi, Malaysia, Maldives, Mali, Mexico, Morocco,
Mozambique, Mauritania, Myanmar, Namibia, Nepal, Netherlands, New Zealand, Nigeria, Norway, Oman,
Panama, Peru, Philippines, Poland, Portugal, Palestine, Qatar, Russia, Rwanda, Romania, Saudi Arabia,
Senegal, Sierra Leone, Singapore, Slovakia, Somalia, South Africa, South Korea, South Sudan, Spain,
Sri Lanka, Sweden, Switzerland, Syria, Taiwan, Tajikistan, Tanzania, Tasmania, Thailand, The Gambia,
Timor-Leste, Togo, Tunisia, Turkey, Turkiye, Turkmenistan, Uganda, Uzbekistan, United Arab Emirates (UAE),
United Kingdom (UK), United States (US), Venezuela, Vietnam, Yemen, Zambia, Zimbabwe

Abu Dhabi, Amsterdam, Abuja, Accra, Addis Ababa, Ahmedabad, Algiers, Amman, Ankara, Antananarivo,
Ashgabat, Asmara, Astana, Athens, Baghdad, Baku, Bamako, Bandar Seri Begawan, Bangkok, Bangui,
Banjul, Beirut, Bengaluru, Berlin, Bishkek, Bloemfontein, Bogotá, Bern, Brasília, Bratislava,
Bucharest, Budapest, Buenos Aires, Cairo, Canberra, Cape Town, Caracas, Chennai, Coimbatore, Dakar,
Damascus, Dhaka, Dili, Djibouti city, Dodoma, Doha, Dublin, Dushanbe, Freetown, Gaborone, Ghaziabad,
Guwahati, Hanoi, Harare, Havana, Helsinki, Hobart, Hyderabad, Indore, Jaipur, Jakarta, Jerusalem,
Juba, Jurong East, Kabul, Kampala, Kanpur, Kathmandu, Kigali, Kinshasa, Kochi, Kolkata, Kuala Lumpur,
Kuwait City, Lisbon, Lilongwe, Lima, Lobamba, Lomé, London, Luanda, Lucknow, Lusaka, Malabo, Madrid,
Malé, Mexico City, Manama, Moscow, Manila, Maputo, Maseru, Mbabane, Mogadishu, Monrovia, Mumabi,
Muscat, Nagpur, Nairobi, New Delhi, Niamey, Nicosia, Noida, Nouakchott, N’Djamena, Oslo, Ottawa,
Ouagadougou, Panama City, Paris, Patna, Phnom Penh, Porto-Novo, Pretoria, Pune, Rabat, Reykjavík,
Riyadh, Rome, Sana’a, Santiago, Sri Jayawardenepura Kotte, Stockholm, Seoul, Singapore, Surat,
Suva, Taipei City, Tashkent, Tokyo, Tbilisi, Tehran, Thimphu, Tripoli, Tunis, Vientiane, Vilnius,
Visakhapatnam, Warsaw, Washington D.C., Wellington, Windhoek, Yaoundé, Yerevan, Naypyidaw

Duplex Steel 2205 Flanges Price

Omaa Metal Sources is ANSI/ASME B16.5 ASTM A182 Duplex Steel 2205 Flanges Exporters and Suppliers in the US, UK, South Africa, Saudi Arabia, Singapore, UAE, Oman, South Korea, Turkey, Bahrain, Malaysia, Philippines, Thailand, Norway, Indonesia, Iraq, Yemen, Bangladesh, Nigeria, Egypt, Peru, Ghana, Morocco, Etc.

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