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ASTM A182 F304L stainless steel flange is a precision component made of low carbon austenitic chromium and nickel stainless steel. Due to its low carbon content, this material has excellent corrosion resistance and is not susceptible to intergranular and localized corrosion.
In the standard specification established by the American Society for Testing and Materials (ASTM), ASTM A182 F304L Threaded Flange is suitable for high-temperature service environments and can be used in the manufacture of forged or rolled alloy and stainless steel pipe flanges, forged fittings, and valves and parts.
Compared with other similar products, A182 F304L flange has higher toughness and low temperature performance. Due to its excellent corrosion resistance and mechanical properties, F304L flange is widely used in petroleum, chemical industry, pharmaceutical and food processing and other fields.
ASTM A182 F304L Flange Chemical Compostion
| C | Mn | Si | P | S | Cr | Ni | N | |
|---|---|---|---|---|---|---|---|---|
| 304L | 0.03max | 2.0max | 0.75max | 0.045max | 0.03max | min: 18.0 max: 20.0 | min: 8.0 max: 12.0 | 0.10 max |
ASTM A182 F304L Flange Mechanical and Physical Properties
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 304L | 485 | 170 | 40 | 92 | 201 |
SS 304L Flange Standards :
| ASME/ANSI B 16.5 | Welding Neck Flange, Slip on Flange, Blind Flange, High Hub Blind Flange, Socket Weld Flange, Lap Joint Flange, Threaded Flange, Ring Type Joint Flange |
| PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
| ASME/ANSI B 16.47 | Welding Neck Flange, Blind Flange [Series A & B] |
| PRESSURE CLASS | 75, 150, 300, 400, 600, 900 |
| ASME/ANSI B 16.36 | Welding Neck Flange, Slip on Flange, Threaded Flange |
ASTM A182 Socket Weld Flange
F304L：
"F" represents forging, and "304L" represents the specific grade of stainless steel. In this case, 304L is a lower carbon variant of the widely used 304 stainless steel. "L" indicates that the steel has less carbon than standard 304, making it more resistant to corrosion in certain environments.
Flange:
ASTM A182 F304L Flanges are components used to connect pipes, valves, pumps, and other equipment to form piping systems. Flanges provide an easy way to assemble and disassemble the system as well as inspect and modify it.
Gnee Steel Company is a professional steel company integrating R&D, manufacturing, sales and service. With annual sales of nearly US$1 billion and annual export volume of more than 50,000 tons.
ASTM A182 Flanges Types
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