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Wuxi ASTM A182 F304L Flange
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Name: Wuxi ASTM A182 F304L Flange
Material: W.Nr.1.4306
Type: WN
Face: RF
Size: 3 Inch
Class: 300LB
Process Method: Forged
Feature: Strong Stiffness, Good Sealing
Usage: High Temperature, High Pressure and High Sealing Requirements
Material: W.Nr.1.4306
Type: WN
Face: RF
Size: 3 Inch
Class: 300LB
Process Method: Forged
Feature: Strong Stiffness, Good Sealing
Usage: High Temperature, High Pressure and High Sealing Requirements
Quantity
The ASTM A182 F304L Flange (W.Nr. 1.4306 / EN 1.4306) is a high-performance forged stainless steel flange designed for demanding industrial piping systems. Manufactured in accordance with ASTM A182/A182M – the standard specification for forged or rolled alloy and stainless steel pipe flanges for high-temperature service – this flange delivers exceptional reliability under extreme operating conditions.
As a Weld Neck (WN) type with a Raised Face (RF) configuration, this flange features a long tapered hub that transitions smoothly to the pipe wall, minimizing stress concentration and ensuring optimal flow characteristics. The raised face provides a concentrated sealing surface, enhancing gasket compression and reducing the risk of leakage in critical applications .
Material & Specifications
The F304L grade represents the low-carbon variant of the widely used 304 stainless steel. With a maximum carbon content of 0.03%, it offers superior resistance to intergranular corrosion – a critical advantage for welded assemblies that may be exposed to sensitization temperatures . Key material properties include:
The F304L grade represents the low-carbon variant of the widely used 304 stainless steel. With a maximum carbon content of 0.03%, it offers superior resistance to intergranular corrosion – a critical advantage for welded assemblies that may be exposed to sensitization temperatures . Key material properties include:
- Tensile Strength: 485 MPa (min.)
- Yield Strength (0.2% Proof): 170 MPa (min.)
- Hardness: 92 HRB / 201 HB (max.)
- Chemical Composition: 18.0-20.0% Cr, 8.0-12.0% Ni
- Yield Strength (0.2% Proof): 170 MPa (min.)
- Hardness: 92 HRB / 201 HB (max.)
- Chemical Composition: 18.0-20.0% Cr, 8.0-12.0% Ni
The 3-inch nominal size and 300LB class rating meet ASME B16.5 dimensional standards, ensuring interchangeability with other flanges of the same specification .
Key Features
- Forged Construction: Enhanced grain structure and mechanical integrity compared to cast alternatives
- Strong Stiffness: Maintains dimensional stability under high-pressure conditions
- Excellent Sealing Performance: RF configuration ensures leak-tight connections with proper gasket selection
- Corrosion Resistance: Austenitic stainless steel provides durable protection against chemical attack and oxidation
- Cryogenic Suitability: Remains tough and ductile down to -196°C
- Forged Construction: Enhanced grain structure and mechanical integrity compared to cast alternatives
- Strong Stiffness: Maintains dimensional stability under high-pressure conditions
- Excellent Sealing Performance: RF configuration ensures leak-tight connections with proper gasket selection
- Corrosion Resistance: Austenitic stainless steel provides durable protection against chemical attack and oxidation
- Cryogenic Suitability: Remains tough and ductile down to -196°C
Applications
This ASTM A182 F304L Flange is engineered for critical service in:
- Petrochemical Plants: Processing corrosive fluids and hydrocarbons
- Oil & Gas Facilities: Refinery piping, offshore platforms, and pipeline connections
- Power Generation: High-temperature steam and cooling water systems
- Chemical Processing: Handling acids, alkalis, and organic compounds
- Pharmaceutical & Food Processing: Sanitary applications requiring corrosion resistance and cleanability
This ASTM A182 F304L Flange is engineered for critical service in:
- Petrochemical Plants: Processing corrosive fluids and hydrocarbons
- Oil & Gas Facilities: Refinery piping, offshore platforms, and pipeline connections
- Power Generation: High-temperature steam and cooling water systems
- Chemical Processing: Handling acids, alkalis, and organic compounds
- Pharmaceutical & Food Processing: Sanitary applications requiring corrosion resistance and cleanability
With its forged construction, corrosion-resistant material, and precision-engineered sealing face, this 3-inch 300LB WN Flange delivers the durability and reliability required for mission-critical industrial operations.
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