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ASTM A182 F316L Flange
ASTM A182 F316L Flange
ASTM A182 F316L Flange
ASTM A182 F316L Flange

Jiaxing ASTM A182 F316L Flange

QS Flange: Jiaxing ASTM A182 F316L Flange
Name: Jiaxing ASTM A182 F316L Flange
Size: 3 Inch
Class: 150LB
Process Method: Forged
Material: W.Nr.1.4404
Type: WN
Face: RF
Feature: Strong Stiffness, Good Sealing, Corrosion Resistance
Usage: High Temperature, High Pressure and High Sealing Requirements
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The ASTM A182 F316L Flange is a premium-grade forged flange engineered for demanding high-temperature and high-pressure piping systems. Manufactured from W.Nr.1.4404 forged stainless steel (equivalent to UNS S31603), this 3-inch, Class 150LB flange delivers exceptional corrosion resistance, mechanical strength, and sealing reliability .
 
Material Advantages: F316L is the low-carbon variant of F316 stainless steel, with a maximum carbon content of 0.035%. This composition significantly enhances weldability and eliminates the risk of intergranular corrosion caused by carbide precipitation during welding—a critical advantage for heavy-gauge welded components . The material’s molybdenum content (2.00-3.00%) provides superior resistance to pitting and crevice corrosion in chloride-rich environments, making it ideal for marine, chemical, and petrochemical applications .
 
Design & Performance: The Raised Face (RF) design ensures an effective, leak-free seal when mated with compatible gaskets. According to ASME B16.5 pressure-temperature ratings, ASTM A182 F316L Class 150LB flanges are rated for working pressures up to 230 psig at temperatures ranging from -29°C to 38°C, with pressure ratings decreasing as temperatures increase . The WN (Weld Neck) configuration provides strong stiffness and smooth stress transition at the weld joint, reducing stress concentrations and enhancing structural integrity under cyclic loading conditions .
 
Applications
This flange is extensively utilized across critical industries including:
- Oil & Gas Industry: Pipeline connections, refinery systems, offshore platforms
- Chemical & Petrochemical Processing: Handling corrosive fluids, acids, and high-temperature media
- Pharmaceutical & Food Processing: Sanitary applications requiring corrosion resistance and hygienic standards
- Power Generation: Steam and high-temperature fluid handling
- Water Treatment & Desalination: Seawater and chloride-rich environments
- Pulp & Paper Industry: Corrosive process media handling 
 
Quality Assurance
Each flange undergoes rigorous inspection including Positive Material Identification (PMI), dimensional verification, hydrostatic testing, and mechanical property testing to ensure full compliance with ASTM/ASME standards .
Choose the ASTM A182 F316L Flange for unmatched reliability, longevity, and performance in your most demanding piping applications.

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