What is Stainless Steel 310/310S Flanges ?
ASTM B366 Alloy 20 Flanges are made of high quality material and an extraordinary combination that includes elements like copper, molybdenum, nickel and chromium. This combination provides great microstructure to the grade. The grade also includes a high amount of iron which delivers extra durability and sturdiness to the grade. All of these elements help an alloy in obtaining amazing welding and forming properties.
ASTM B366 Alloy 20 Flanges are obtainable in various forms and sizes. This alloy helps the grade in providing sturdiness and strength. The grade provides resistance from corrosion, crevice corrosion and stress cracking. It also protects from extirpation and abscission.
ASTM B366 alloy 20 flanges are extremely welded and they have impressive properties. The tensile and yield strength of this alloy is high. The minimum tensile strength of the flanges is 8000 psi whereas the yield strength is 35000 psi.

Stainless Steel 304H Round Bar, SS 304H Bright Bars Stockists in Mumbai, ASME SA 276 SS 304H Bars, SS 304H Hex Bar, SS 304H Flat Bar Supplier in India.
Sumit Impex is the most famous manufacturer and supplier of ASTM B366 alloy 20 flanges. These flanges are manufactured using high quality equipment, machineries and raw material. ASTM B366 alloy 20 flanges are pretty stable and efficient for commercial as well as for the industrial uses.
ASTM B366 Alloy 20 Flanges are specially made for high heat applications. These flanges are considered as the ideal applications in industries like paper and pulp manufacturing industries, pharmaceutical, petrochemicals, chemical manufacturing and oil and marine excavation industries.
ASTM B366 Alloy 20 Flanges Specifications
Specifications | ASTM B366 |
---|---|
Standard | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, 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), Slip-On Ring Flange (SORF), Blind Ring Flange (BLRF), Socket Weld Ring Flange (SWRF), Threaded Ring Flange, Lap Joint Ring Flange (LJRF), Ring Type Joint Flange (RTJF), |
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 |
STANDARD | WERKSTOFF NR. | UNS | AFNOR | EN |
Alloy 20 | 2.4660 | N08020 | Z2NCUD31-20AZ | NiCr20CuMo |
Grade | C | Mn | Si | S | Cu | Ni | Cr | Fe | Mo | P |
Alloy 20 | 0.07 max | 2.00 max | 1.00 max | 0.035 max | 3.0-4.0 | 32.0-38.0 | 19.0-21.0 | 29.85 min* | 2.0-3.0 | 0.045 max |
Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
8.1 g/cm3 | 1443 °C (2430 °F) | Psi -80,000, MPa -551 | Psi – 35,000, MPa – 241 | 30% |
Other Products
Alloy 20 SORF Flanges | Alloy 20 Flanges |
WNR. 2.4660 Pipe Flanges | Alloy 20 Blind Flanges |
Alloy 20 Spacer Ring Flanges | UNS N08020 Nipolet Flanges |
Carpenter 20 Ring Type Joint Flanges | Alloy 20 Nipolet Flanges |
Alloy 20 Flat Flange | Alloy 20 Nipo Flange |
ASTM B462 Alloy 20 Long weld Neck Flanges | Alloy 20 Lap Joint Flanges |
ASTM B366 Alloy 20 Flanges
- 20 Alloy Flanges
US $0.5-1000 / Piece (FOB Price) - Alloy 20 Pipe Flanges
US $300-500 / Ton (FOB Price) - Carpenter 20 Weld Neck Flanges
US $1-900 / Piece (FOB Price) - ASTM B462 20 alloy plate flanges
US $0.5-1000 / Piece (FOB Price) - 20 Pipe Flanges
US $1-300 / Piece (FOB Price)

Packaging
We Sumit Impex 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 Sheet Manufacturers












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