SS 304L Weld Neck Flanges - High Pressure Buttweld

SS 304L Weld Neck Flange is arguably the most common and critical type of pipe component used in severe service environments, high-pressure, and high-temperature applications. It is easily recognizable by its long, tapered hub, which is joined to the pipe by a single full penetration butt weld. This design allows for the stress to be smoothly transferred from the flange to the pipe, reducing stress concentration at the base of the flange. [Image of Weld Neck Flange diagram] The low-carbon 'L' grade stainless steel is essential for these flanges as it ensures maximum resistance to intergranular corrosion after the mandatory welding procedure. Zeron Fasteners specializes in manufacturing and supplying high-quality SS 304L Weld Neck Flanges that meet rigorous ASME B16.5 standards, guaranteeing joint integrity and long-term reliability in critical oil, gas, and power systems.

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SS 304L Weld Neck Flanges Manufacturer in India

SS 304L Weld Neck Flanges Chemical Composition

Element Composition (Weight %)
Carbon (C) 0.030 Max
Manganese (Mn) 2.00 Max
Phosphorus (P) 0.045 Max
Sulphur (S) 0.030 Max
Silicon (Si) 1.00 Max
Chromium (Cr) 18.00 to 20.00
Nickel (Ni) 8.00 to 12.00

SS 304L Weld Neck Flanges Mechanical Properties

Property Minimum Requirements (ASTM A182 or A403)
Tensile Strength 485 MPa min
Yield Strength (0.2% Offset) 170 MPa min
Elongation 35% min
Facing Type Raised Face (RF) or Flat Face (FF)
Pressure Class 150\# to 2500\#

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