What is Stainless Steel 309/309S Flanges ?

Stainless steel 309/309S flanges are extremely ductile and strong. The chemical composition of these flanges is extremely robust and tough. The alloy 309 has less carbon content which improves the stability and weldability of the grade. Stainless steel 309/309S flanges are commonly used as boilers and heat exchangers because of their excellent chemical and mechanical properties. The only difference between grade 309 and 309S is its carbon content.

The tensile strength and yield strength of these flanges is extremely high. The minimum tensile strength of these flanges is 620 MPa (89000 psi) whereas the yield strength of these flanges is 310 MPa ( 45000 Psi). These flanges are commonly applicable in industries like Aerospace, Petroleum refineries, Chemical Processing, Oil & Gas, Pharmaceutical, Thermal Processing, etc. Grade 309/309S is capable of bearing high heat, bad weather conditions and chloride involved environment.

309 Stainless Steel Flanges Manufacturer In Qatar, 309 SS Perforated Flanges supplier, ASTM A240 309 SS Flanges, SAIL 309 Stainless Steel Flanges Dealer Brazil.

Sumit impex is one of the most astonishing manufacturers and suppliers of these flanges. We at Sumit Impex make sure that our every product is made of high quality raw material and supreme quality elements. We also make sure that our every product is tested and certified

Stainless steel 309/309s flanges are made of austenitic metal which also includes high amounts of chromium and nickel. These flanges are commonly used for high temperature applications. The inclusion of these elements makes the grade more ductile and durable. The high chromium and nickel strength provides excellent robustness and scalability. Stainless steel 309/309S flanges provide excellent resistance from corrosion, crevice corrosion and stress cracking. These flanges provide excellent heat and oxidation resistance.

Stainless Steel 309/309S Flanges Specifications

Specifications ASTM A182 / ASME SA182
Standard ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size Range 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 , as per Customer Requirements
Dimensions ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Class / Pressure 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Surface pickling, annealing, bright, sand blast, hair line
Type Weld Neck Ring Flange (WNRF), 310 Stainless Steel, Slip-On Ring Flange (SORF), 310 Stainless Steel, Blind Ring Flange (BLRF), 310 Stainless Steel, Socket Weld Ring Flange (SWRF), 310 Stainless Steel, Threaded Ring Flange, 310 Stainless Steel, Lap Joint Ring Flange (LJRF), 310 Stainless Steel, Ring Type Joint Flange (RTJF), 310 Stainless Steel
Connection type Raised Face, Flat Face, Ring Type Joint, Lap-Joint Face, Large Male-Female, Small Male-Female, Large Tongue, Groove, Small Tongue, Groove.
Test Certificates EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report, etc
SS 309 1.4841 S31000 SUS 310 310S24 20Ch25N20S2 X15CrNi25-20
SS 309S 1.4845 S31008 SUS 310S 310S16 20Ch23N18 X8CrNi25-21
Grade Cr Ni C Mn P S Si
SS 309 22.0 min.-24.0 max. 12.0 min.-15.0 max. 0.20 2.00 0.045 0.030 0.75
SS 309S 22.0 min.-24.0 max. 12.0 min.-15.0 max. 0.08 2.00 0.045 0.030 0.75
Grade Tensile Strength ksi (min) Yield Strength 0.2% ksi (min) Elongation % Hardness (Brinell) MAX
309 40 30 40 217

Other Products

SS 309/309S SORF Flanges SS 309/309S WNRF Flanges
SS 309/309S Blind Flanges SS 309/309S Spacer Ring Flanges
SS 309/309S Ring Type Joint Flanges SS 309/309S Nipolet Flanges
SS 309/309S Nipo Flange SS 309/309S Long weld Neck Flanges
SS 309/309S Stainless Steel Pipe Flanges SS 309/309S Nipolet Flanges
SS 309/309S Flat Flange SS 309/309S Lap Joint Flanges

Stainless Steel 309/309S Flanges Price List

  • 309 Flanges
    US $0.5-1000 / Piece (FOB Price)
  • SS 309s Pipe Flanges
    US $300-500 / Ton (FOB Price)
  • Stainless Steel 309 Weld Neck Flanges
    US $1-900 / Piece (FOB Price)
  • ASTM A182 309 stainless steel plate flanges
    US $0.5-1000 / Piece (FOB Price)
  • 309s Pipe Flanges
    US $1-300 / Piece (FOB Price)

Different Types of Stainless Steel Grade 309 & 309S Flanges

  • SS 309 High Hub Blind Flange
  • ASTM A182 High Hub Blind Flange
  • ASME SA182 High Hub Blind Flange
  • AISI 309 High Hub Blind Flange
  • UNS S30900 High Hub Blind Flange
  • SS 309S Lap Joint Flange
  • ASTM A182 Lap Joint Flange
  • ASME SA182 Lap Joint Flange
  • AISI 309S Lap Joint Flange
  • UNS S30908 Lap Joint Flange
  • SS 309 Grade Long WN Flanges
  • ASTM A182 Long WN Flange
  • ASME SA182 Long WN Flange
  • AISI 309 Long WN Flanges
  • UNS S30900 Long WN Flange


We Sumit Impex Metal Ensure the best quality of Packing , because its play important role especially in a case of international shipments in which consignment pass through various channels to reach the ultimate destination, so we put extraordinary concern regarding packaging.

We pack our goods in numerous ways based on the products. We pack our products in multiple ways, such as,

  • Boxes and Crates
  • Shrink-wrapped
  • Carton boxes
  • Wooden pallets
  • Wooden boxes
  • Wooden crates

Testings (Destructive, Non Destructive)

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

Application Industries

These material are not a single material but the name for a family of corrosion resistant steels. Like many scientific breakthrough the origins of stainless steel lies in a lucky accident. From the smallest part of zipper to the largest building skyscraper, stainless steel is an essential part of modern life.Stainless steel’s strength, resistance to corrosion and low maintenance make it the ideal material for a wide range of applications. It is also has a long life cycle and is 100% recyclable.

  • Construction
  • Bridges
  • Petrochemical Industry
  • Ship Building
  • Engineering
  • General Structural Purposes
  • Offshore and Onshore Services

Stainless Steel 309/309S Flanges Manufacturers

Country we serve / City we deliver

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

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

People Also Searched:-

ASTM A182 Gaskets flanges manufacturer in Kuwait, ASME SA182 Spacer Blinds flanges supplier in Philippines, AISI 309 Blind flanges trader in Singapore, ASTM A182 Lap Joint flanges wholesaler in Chennai, ASME SA182 Long Weld Neck flanges manufacturer in Qatar, AISI 309 Insert flanges stockiest in Kuwait, ASME SA182 RTJ flanges supplier in Coimbatore, AISI 309 Lap Joint flanges dealer in Malaysia, Stainless Steel 309 Reducing flanges distributor in Philippines, UNS S30900 Spacer Blinds flanges supplier in Philippines, ASTM A182 Angle Face Rings flanges manufacturer in sharjah, UNS S30908 Threaded flanges stockiest in Chennai, UNS S30908 Long Weld Neck flanges retailer in Kolkata, UNS S30908 Weldo flanges retailer in Indonesia, AISI 309S Lap Joint flanges manufacturer in Oman, ASTM A182 BLRF flanges manufacturer in Chennai, ASME SA182 Long Weld Neck flanges wholesaler in Chennai, ASTM A182 Gaskets flanges stockyards in Kolkata, Stainless Steel 309S Threaded flanges dealer in Ahmedabad.