Carbon Steel Flanges
DIN 2627 Carbon Steel flanges PN 400 are high-strength blind flanges designed for use in high-pressure applications across a wide range of industrial systems. Manufactured in accordance with the DIN 2627 standard, these flanges are primarily used to isolate piping systems by sealing off the end of a pipeline or vessel opening. The PN 400 pressure rating (400 bar / 5800 psi) ensures reliable performance under intense pressure and mechanical stress.
Carbon steel flanges offer excellent tensile strength, impact resistance, and structural integrity, making them a cost-effective solution for systems where corrosion resistance is not the primary concern. Typically used in applications involving water, steam, oil, and gas, DIN 2627 carbon steel blind flanges are well-suited for power plants, refineries, petrochemical facilities, and general industrial systems.
Ladhani Metal Corporation is a trusted global manufacturer and exporter of carbon steel flanges, producing components that meet rigorous international standards for material quality, dimensional accuracy, and pressure containment.
Pressure Rating:
• PN 400 (400 bar / 5800 psi): Suitable for extremely high-pressure systems in industrial pipelines and mechanical installations.
Flange Type:
• Blind Flanges
Solid, non-bored flanges used to terminate flow or provide system isolation. Commonly used for pressure testing, maintenance access, and future expansion.
• Flat Face (FF) Flanges
Flat sealing surfaces designed for use with full-face gaskets and flat-faced mating flanges. Promotes even bolt loading and effective sealing under high-pressure conditions.
Carbon Steel Grades and Composition:
ASTM A105 (Forged Carbon Steel)
• Carbon (C): ≤ 0.35%
• Manganese (Mn): 0.60 – 1.05%
• Phosphorus (P): ≤ 0.035%
• Sulfur (S): ≤ 0.040%
• Silicon (Si): 0.10 – 0.35%
Applications: Commonly used for high-temperature and high-pressure systems. Ideal for oil and gas, steam, and hydraulic systems.
ASTM A350 LF2 (Low-Temperature Carbon Steel)
• Carbon (C): ≤ 0.30%
• Manganese (Mn): 0.60 – 1.35%
• Silicon (Si): 0.15 – 0.30%
• Nickel (Ni): ≤ 1.0%
Applications: Suitable for sub-zero temperature services such as cryogenic systems, LNG processing, and cold-weather pipelines.
Applications of DIN 2627 Carbon Steel Flanges PN 400:
• Oil and Gas Transmission Lines
Used in pipeline systems and refineries handling hydrocarbons under high pressure.
• Steam and Power Generation Plants
Ideal for high-pressure steam lines, condensate systems, and boiler feedwater applications.
• Petrochemical and Chemical Industries
Suitable for handling neutral and non-aggressive chemical fluids and process gases.
• Water Treatment and Pumping Stations
Used in high-pressure water systems, including pumping stations, pressure regulators, and testing units.
• Heating, Ventilation, and Air Conditioning (HVAC)
Employed in high-pressure chilled water and steam systems for industrial facilities.
• General Manufacturing and Engineering Systems
Reliable for structural piping systems in factories and mechanical installations.
Key Features:
• Compliant with DIN 2627 specifications
• PN 400 pressure rating for ultra-high-pressure systems
• Blind flange design allows for system isolation and pressure containment
• Flat face design compatible with full-face gaskets and flat mating surfaces
• Manufactured from forged carbon steels like ASTM A105 and A350 LF2
• Excellent strength, ductility, and impact resistance
• Economical and durable for non-corrosive environments
• Widely used across oil and gas, power, chemical, and water treatment sectors
• Custom sizes, pressure classes, surface coatings, and face types available upon request
Conclusion:
DIN 2627 Carbon Steel Flanges PN 400 from Ladhani Metal Corporation are engineered for high-performance applications requiring strength, pressure retention, and reliability in demanding industrial environments. Whether used in power plants, oil pipelines, or steam systems, these flanges provide durable and cost-effective sealing for critical operations. Contact Ladhani Metal Corporation for product specifications, technical support, or custom solutions tailored to your piping system requirements.
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