Alloy 20 Flanges

Alloy 20 Socket Weld Flanges Manufacturing at Oman, ASTM B564 Alloy 20 Weld Neck Flanges, Alloy UNS N08020 Orifice Flanges Suppling at Tunisia, Alloy 20 RTJ Flanges, Alloy 20 Plate Flanges, Alloy 20 Blind Flanges Suppling at Italy, Alloy 20 DIN Flange, Alloy 20 Pipe Flanges Exporter & Supplier in Mumbai India.

Alpha Overseas(AOS) is one of the distinguished manufacturers that offer Alloy 20 Pipe Flanges, which is an austenitic nickel-iron-chromium based alloy with additions of copper and molybdenum. The nickel, molybdenum, copper and chromium content of Incoloy 20 Flanges contribute to its overall resistance to chloride on stress corrosion cracking and general pitting attack. In the chemical process market, key applications of Carpenter 20 Flanges are in sulphuric, phosphoric and nitric acid environments. Alloy 20 Slip On Flanges is often chosen to solve stress corrosion cracking problems, which may occur with 316L stainless. Although originally designed for use in sulphuric acid related industries, Alloy 20 Blind Flanges is now a popular choice for a wide variety of industries including the pharmaceutical, plastics, chemical, and food industries. Resistance to sulphuric acid is particularly exceptional but Alloy 20 Weld Neck Flanges shows useful resistance in phosphoric acid, nitric acid as well as in chloride environments. Alloy 20 Socket Weld Flanges has excellent general corrosion resistance to sulphuric acid and to chloride stress corrosion cracking. These Alloy 20 Orifice Flanges can be fabricated to produce: Mixing Tanks, Process Piping, Heat Exchangers and Pickling Equipment.

We offer high quality of ASTM B564 Alloy 20 Weld Neck Flange in many shapes and sizes at reasonable prices.

Carpenter 20 Flanges
Carpenter 20 Flanges
Alloy 20 Flanges
Alloy 20 Flanges

ASTM B564 Alloy 20 Weld Neck Flanges Suppling at Philippines, Alloy 20 DIN 2.4660 Flange Manufacturing at Morocco, ASME SB564 Alloy Flanges Manufacturer, Carpenter 20 Socket weld Flanges Suppling at Austria, Alloy 20 Lap Joint Flanges Manufacturer & Stockist in Mumbai, India.

Alloy 20 Ring Type Joint Flanges has excellent resistance to hot sulphuric acid and resistant to intergranular corrosion in the as-welded condition. Superior finishes in these Alloy 20 Slip On Flanges may be obtained using set-up and process speeds and feeds normally employed in austenitic stainless steels.


Alloy 20 Flanges Specification :

Specifications : ASTM B 564

Size : 1/2″NB TO 60″NB

Pressure : DIN PN6, PN10, PN16, PN25, PN40, PN64, PN100, PN160

Class : Class 150, Class 300, Class 400, Class 600, Class 900, Class 1500 & Class 2500

Type : ASTM B 564 Alloy 20 Flanges


Alloy 20 Flanges Equivalent Grades

Alloy 20 2.4660 N08020 Z2NCUD31-20AZ NiCr20CuMo


ASTM B564 Alloy 20 Flanges Chemical Composition

Element Ni C Mn P S Si Cr Nb Mo Cu
Alloy 20 32 - 38 0.02 max 1 - 2 0.02 max 0.005 max 0.7 max 19 - 21 0.1 - 0.3 2 - 3 3 - 4


Alloy Flanges Mechanical & Physical Properties

Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Alloy 20 8.1 g/cm3 1443 °C (2430 °F) Psi -80,000, MPa -551 Psi - 35,000, MPa - 241 30 %

Testings (Destructive, Non Destructive):
  • Positive Material Identification - PMI Testing
  • Chemical Analysis - Spectro Analysis
  • Mechanical Testing Such as Tensile, Elongation
  • Micro Test
  • Macro Test
  • Hardness Test
  • Pitting Resistance Test
  • Intergranular Corrosion (IGC) Test
  • Flaring Test
  • Flattening Test
  • Hydrostatic Test
  • Hydrogen-Induced Cracking (HIC) Test, NACE TM0284
  • Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177
  • Radiography Test
  • Dye Penetrant Test (DP Test)
  • Ultra Sonic Test (UT)
  • Eddy Current Testing
  • Impact Test
  • Bend Test


  • We understand the importance of packaging specially in case of international shipments as the consignment has to go through a number of channels to reach the final destination, thus we take proper care of packing.
  • We pack our goods in a various ways depending on the products. The different ways in which our products are packed are:
    • Shrink-wrapped
    • Wooden Boxes
    • Wooden Pallets
    • Wooden Crates
    • Carton boxes


  • All our products will have complete marking details which are co-related to the test certificates we supply.
  • In case of orders for cut piece of Pipes, Sheets or Round Bars, the marking is transferred from the product from which it is cut. In such cases we provide Letter confirming the marking transfer and picture of the product from which it is cut.


Delivery Time:
  • If the items are available in stock, we take 2 days from the date of receipt of advance payment to clear the shipment and send it to port.
  • And in-case the items are not availabe in stock, the time taken for manufacturing depends on the size, quantity and grade.
  • However we can claim the fact that we can compete with anyone in India on Delivery time and most of the time our production time is the least.
  • We have tied up with strong logistic partners in India which can undertake any type of shipping activites and make sure that there is no delay in shipment.


  • We welcome stage wise inspection, final stage inspection from any of your representative or third party inspection agencies.
  • We regularly have inspections ongoing at our premises from internationally acclaimed Inspection Agencies such as TUV, Llyods, BVIS, SGS, DNV etc.


  • Furnaces (piping, doors, burners, fans and recuperators)
  • Components (Cryogenic)
  • Industries processing food
  • Bed Furnaces (Fluidized) suc as grids, wind boxes, piping, coal combustors
  • Alloy 20 is used in smelter and steel melting equipment, continuous casting equipment in Steel Plants and Ore Processing Plants
  • Petroleum and Petrochemical refineries for catalytic recovery systems, flares, recuperators, tube hangers
  • Alloy 20 is used in Power Generation for coal gasifier internals, pulverized coal burners, tube hangers
  • Sintering/Cement Plants – burner shields, burners, wind boxes feeding and discharging systems
  • Thermal Process Plants for annealing covers and boxes, burner grids, doors, fans, muffles and retorts, recuperators, walking beams

Other Types Of Alloy 20 Flanges
  • ASTM B 564 Alloy 20 Pipe Flanges
  • Alloy 20 Flanges
  • Alloy 20 Slip on Flanges Suppliers
  • Alloy UNS N08020 Threaded Flanges
  • ASME SB 564 Alloy RTJ Flanges Suppliers at Spain
  • Alloy 20 Plate Flanges
  • Alloy 20 Blind Flanges
  • Alloy 20 SORF Flanges
  • Alloy 20 Weld Neck Flanges
  • Alloy 20 Socket Weld Cross Stockist
  • ASTM B564 Alloy 20 Weld Neck Flanges
  • Carpenter 20 Socket Weld Flange
  • Alloy DIN 2.4660 Orifice Flanges Exporter
  • ASTM B564 Alloy 20 Spectacle Blind Flanges
  • Alloy 20 Tongue & Groove Flanges Suppliers at Qatar
  • Alloy 20 SORF Flanges Suppliers

Approved manufacturer of
Sabic approved Alloy 20 Flanges
KNPC approved Alloy 20 Pipe Flanges
Williamson approved Alloy 20 Socket Weld Cross
MARAFIQ approved ASTM B564 Alloy 20 Industrial Flanges
Magnetrol approved Alloy 20 Plate Flange
QATARGAS approved Alloy 20 Threaded Flanges
ONGC approved Alloy 20 Socket Weld Flanges
FW approved ASTM B564 Alloy 20 Forged Flanges
IBR approved Alloy 20 DIN 2.4660 Slip on Flanges
Alba approved ASTM B564 Alloy 20 Reducing Flanges
Kuwait Oil Company approved Alloy 20 Blind Flanges
Egyptian General Petroleum Corporation approved Alloy 20 Tongue & Groove Flanges
Industry We Serve
Alloy 20 SORF Flanges in Petrochemical Industry
Alloy UNS N08020 Orifice Flanges in Oil & Gas Industry
Alloy 20 Socket Weld Flanges in Power Plant at Morocco
Alloy 20 Weld Neck Flanges in Pharmaceuticals Industry
Carpenter 20 RTJ Flanges in Chemicals Industry
Carpenter 20 Orifice Flanges in Defence Industry
Alloy 20 DIN Flanges in Food and Beverages Industry
ASTM B564 Alloy 20 Blind Flanges in Sugar Industry
Incoloy Alloy 20 Pipe Flanges in Paper Industry at Slovenia
Alloy UNS N08020 Plate Flanges in Cement Industry
Alloy 20 DIN 2.4660 Slip on Flanges Industry
Alloy 20 Flanges in Mining Industry

We Supply Our Alloy 20 Flanges in Countries like


We are Exports in Exporting Alloy 20 Flanges worldwide

We are Exporter of Alloy 20 Flanges in Worldwide Such as Singapore, Spain, Saudi Arabia, Iran, Macau, Nepal, Poland, Croatia, Oman, Afghanistan, Ecuador, New Zealand, Austria, Hungary, Chile, Czech Republic, France, Bhutan, Chile, Estonia, Trinidad & Tobago,Tunisia, South Africa, Libya, United Kingdom, United States, Costa Rica, United Arab Emirates, Mexico, Sweden, Serbia, Nigeria, Canada, Greece, India, Lithuania, Japan, Netherlands, Iran, Algeria, Italy, Thailand, Belarus, Belgium, Slovakia, Germany, Tibet, Zimbabwe, Pakistan, Yemen, Lebanon, Qatar, Finland, Portugal, Bulgaria, Namibia, Romania, Ghana, Morocco, Egypt, Gambia, Indonesia, Australia, Switzerland, Angola, Bahrain, Hong Kong, Russia, Philippines, Argentina, Iraq, Brazil, Ireland, Vietnam, Denmark, Azerbaijan, Colombia, Nigeria, Kazakhstan, Malaysia, Bangladesh, Norway, Puerto Rico, Bolivia, Turkey, Ukraine, Israel, Jordan, Venezuela, Kuwait, Sri Lanka, Mongolia, Mexico, Poland, South Korea, Gabon, Taiwan, Peru, Kenya, China.

We have supplied of Carpenter 20 Flanges to following places

We are Suppliers of Carpenter 20 Flange in India Such as Bangkok, Muscat, Vadodara, Houston, Ho Chi Minh City, Riyadh, Port-of-Spain, Bogota, Coimbatore, Kuwait City, Milan, Karachi, Ranchi, Madrid, Atyrau, Pune, Aberdeen, Brisbane, London, Ludhiana, Al Jubail, Los Angeles, Bhopal, Tehran, Mumbai, Faridabad, Secunderabad, Colombo, Chandigarh, Singapore, Bengaluru, Hong Kong, New Delhi, Perth, Granada, Dammam, Geoje-si, Howrah, Thane, Gimhae-si, Ankara, Montreal, Chiyoda, Mexico City, Surat, Sydney, Dallas, Caracas, Ernakulam, Jaipur, Manama, Edmonton, Haryana, Sharjah, Seoul, Dubai, La Victoria, Ahmedabad, Toronto, Nagpur, Nashik, Algiers, Visakhapatnam, Lahore, Jamshedpur, Pimpri-Chinchwad, Rajkot, Doha, Baroda, Kanpur, Ulsan, Busan, Kolkata, Moscow, Ahvaz, Indore, New York, Thiruvananthapuram, Hyderabad, Al Khobar, Gurgaon, Calgary, Istanbul, Hanoi, Lagos, Santiago, Jakarta, Petaling Jaya, Jeddah, Vung Tau, Noida, Cairo, Navi Mumbai, Courbevoie, Kuala Lumpur, Chennai, Abu Dhabi, Melbourne, Rio de Janeiro.