Hebei Haihao High Pressure Flange Pipe Fitting Group Co.,Ltd
Haihao Group Supplies ASTM A350 LF2 Flanges to Russia for Low-Temperature Applications

Haihao Group Supplies ASTM A350 LF2 Flanges to Russia for Low-Temperature Applications

Haihao Group has successfully completed the production and delivery of a batch of ASTM A350 LF2 flanges to Russia, supporting a pipeline project operating under low-temperature conditions.

Project Overview: ASTM A350 LF2 Flanges to Russia

The order includes a wide range of ASTM A350 LF2 flanges to Russia, covering different flange types, sizes, and pressure classes to meet diverse piping system needs.

Main products delivered:

  • Weld Neck Flanges (WN RF):
    • 1 1/2″ Class 300
    • 3″ Class 300
    • 4″ Class 300
  • Blind Flanges (RF):
    • 3″ Class 300
    • 6″ Class 150 / Class 300
    • 20″ Class 300
    • 24″ Class 300
  • Lap Joint Flange (LJ):
    • 1″ Class 150 (custom drawing, hot-dip galvanized)

All ASTM A350 LF2 flanges to Russia are manufactured according to ASME B16.5, ensuring dimensional accuracy and compatibility.

ASME B16.5 ASTM A350 LF2 flanges blind flange

ASME B16.5 ASTM A350 LF2 flanges blind flange

Material Advantage: ASTM A350 LF2

The supplied ASTM A350 LF2 flanges to Russia are made from low-temperature carbon steel, specifically designed for applications requiring high toughness in cold environments.

Key benefits:

  • Excellent impact toughness at low temperatures
  • Good weldability and machinability
  • Reliable performance in harsh climates
  • Widely used in oil & gas and petrochemical industries

These advantages make ASTM A350 LF2 flanges to Russia ideal for critical pipeline systems in cold regions.

Standard Compliance: ASME B16.5

All ASTM A350 LF2 flanges to Russia comply with ASME B16.5, ensuring:

  • Precise dimensions and tolerances
  • Standardized pressure ratings (Class 150, Class 300)
  • Interchangeability in global piping systems
  • Safe and reliable sealing performance

This guarantees seamless integration into international projects.

Manufacturing and Quality Control

Haihao Group maintains strict quality control throughout the production of ASTM A350 LF2 flanges to Russia:

  • Raw material inspection and certification
  • Forging and heat treatment processes
  • Machining of sealing surfaces (RF)
  • Dimensional inspection and pressure verification
  • Surface treatment, including hot-dip galvanizing (for specific items)

Each flange is thoroughly inspected to ensure compliance with technical specifications and customer requirements.

Application Fields

The delivered ASTM A350 LF2 flanges to Russia are widely used in:

  • Oil and gas transmission pipelines
  • Petrochemical plants
  • Low-temperature processing systems
  • Power generation facilities

Their strength and toughness ensure long-term reliability in demanding environments.

Why Choose Haihao Group?

As a trusted supplier of ASTM A350 LF2 flanges to Russia, Haihao Group offers:

  • Extensive experience in forged flange manufacturing
  • Strict adherence to ASME standards
  • Capability for customized flange production
  • Reliable export service and on-time delivery

We are committed to delivering high-performance flange solutions for global clients.

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