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Zhejiang EN10222-5 1.4401 WN Flange
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Name: Zhejiang EN10222-5 1.4401 WN Flange
Size: 4 Inch
Class: 300LB
Face: RF
Material: F316
Type: WN
Process Method: Forged
Feature: Strong Stiffness, Good Sealing, Corrosion Resistance
Usage: High Temperature, High Pressure and High Sealing Requirements
Size: 4 Inch
Class: 300LB
Face: RF
Material: F316
Type: WN
Process Method: Forged
Feature: Strong Stiffness, Good Sealing, Corrosion Resistance
Usage: High Temperature, High Pressure and High Sealing Requirements
Quantity
The EN10222-5 1.4401 WN Flange is a high-integrity forged flange engineered to meet the most demanding requirements of high-pressure and high-temperature piping systems. Manufactured from F316 stainless steel in accordance with EN 10222-5, this 4-inch, 300LB Weld Neck flange features a Raised Face (RF) design that ensures a robust, leak-proof connection in critical industrial environments .
Technical Excellence
As a WN (Weld Neck) flange, it is designed with a tapered hub that provides gradual stress transition, minimizing stress concentration at the weld joint and significantly enhancing structural integrity under cyclic loading. The F316 (1.4401) austenitic stainless steel offers superior resistance to pitting and crevice corrosion, particularly in chloride-rich environments, thanks to its molybdenum content (2.00-3.00%) . The forging process refines the grain structure, delivering enhanced mechanical properties—including a minimum yield strength of 205 MPa and tensile strength of 515 MPa—ensuring durability in severe service conditions .
As a WN (Weld Neck) flange, it is designed with a tapered hub that provides gradual stress transition, minimizing stress concentration at the weld joint and significantly enhancing structural integrity under cyclic loading. The F316 (1.4401) austenitic stainless steel offers superior resistance to pitting and crevice corrosion, particularly in chloride-rich environments, thanks to its molybdenum content (2.00-3.00%) . The forging process refines the grain structure, delivering enhanced mechanical properties—including a minimum yield strength of 205 MPa and tensile strength of 515 MPa—ensuring durability in severe service conditions .
Key Benefits
- Superior Sealing Performance: The RF (Raised Face) finish concentrates gasket pressure, guaranteeing a tight, reliable seal for Class 300LB systems.
- Exceptional Strength & Stiffness: Designed to withstand high stresses, the weld neck design offers strong stiffness and fatigue resistance for long-term service life.
- Corrosion Resistance: With 16.0-18.0% Chromium and 10.0-14.0% Nickel, the 1.4401 material ensures excellent oxidation resistance up to 870°C and withstands harsh chemical exposures .
- Superior Sealing Performance: The RF (Raised Face) finish concentrates gasket pressure, guaranteeing a tight, reliable seal for Class 300LB systems.
- Exceptional Strength & Stiffness: Designed to withstand high stresses, the weld neck design offers strong stiffness and fatigue resistance for long-term service life.
- Corrosion Resistance: With 16.0-18.0% Chromium and 10.0-14.0% Nickel, the 1.4401 material ensures excellent oxidation resistance up to 870°C and withstands harsh chemical exposures .
Application Scenarios
This flange is ideally suited for critical operations where safety and reliability are paramount :
- Oil & Gas: Offshore platforms, refineries, and pipeline systems requiring high-pressure integrity.
- Petrochemical & Chemical Processing: Transporting corrosive media in high-temperature reactors and distillation columns.
- Power Generation: Steam lines and boiler connections demanding exceptional sealing under thermal cycling.
- Marine & Pharmaceutical: Systems where resistance to saline environments and contamination control are essential.
This flange is ideally suited for critical operations where safety and reliability are paramount :
- Oil & Gas: Offshore platforms, refineries, and pipeline systems requiring high-pressure integrity.
- Petrochemical & Chemical Processing: Transporting corrosive media in high-temperature reactors and distillation columns.
- Power Generation: Steam lines and boiler connections demanding exceptional sealing under thermal cycling.
- Marine & Pharmaceutical: Systems where resistance to saline environments and contamination control are essential.
Quality Assurance
Precision-engineered and manufactured to strict dimensional standards, this forged flange is fully traceable and certified to meet European material specifications. It provides engineers with a reliable, durable solution that minimizes maintenance and maximizes system uptime in the world's most challenging environments.
Precision-engineered and manufactured to strict dimensional standards, this forged flange is fully traceable and certified to meet European material specifications. It provides engineers with a reliable, durable solution that minimizes maintenance and maximizes system uptime in the world's most challenging environments.
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