Forged Steel Flanges with EF+LF+VD Smelting Process and Lightly Oiled Treatment for DN15-DN1000 Size Range

Forged steel flanges are essential components renowned for exceptional strength, durability, and reliability in various industrial applications. Manufactured in China using advanced smelting technology combining Electric Furnace (EF), Ladle Furnace (LF), and Vacuum Degassing (VD) processes, these flanges guarantee superior material purity and mechanical properties.

ASTM A182 F321 / F347: Excellent corrosion resistance for high-temperature and harsh chemical environments. Ideal for chemical, petrochemical, and power generation sectors.

ASTM A182 F12: Outstanding strength and resistance to oxidation and carburization at elevated temperatures. Suitable for high-pressure and high-temperature applications in oil and gas, refining, and power plants.

Raised Face (RF): Concentrates pressure on the gasket for improved sealing efficiency in high-pressure systems.

Flat Face (FF): Used in low-pressure applications or when connecting to equipment with flat face flanges.

Forged steel flanges are widely used in oil and gas, petrochemical, power generation, shipbuilding, and heavy machinery industries. They are ideal for high-pressure and high-temperature environments where durability and strength are paramount.

Each batch undergoes rigorous testing and inspection to comply with international standards. Our products are certified by globally recognized institutions including SGS, Bureau Veritas (BV), American Bureau of Shipping (ABS), Lloyd's Register (LR), TÜV, Det Norske Veritas (DNV), Bureau of Indian Standards (BIS), American Petroleum Institute (API), and Pressure Equipment Directive (PED).

We offer comprehensive customization services for size, pressure rating, and material grade specifications. Our technical support team provides product selection guidance, installation assistance, and maintenance recommendations to ensure optimal performance and system reliability.