Haihao Group Supplies ASME B16.5 and B16.48 Flanges to Russian Client
Haihao Group has successfully completed another export order of industrial flanges for a valued client in Russia. The shipment includes a comprehensive range of ASME B16.5 forged flanges and ASME B16.48 figure-8 blanks, designed for high-performance pipeline systems operating under demanding temperature and pressure conditions.
Product Overview
The order covers multiple flange types — weld neck (WN) flanges, socket weld (SW) flanges, blind flanges, and figure-8 paddle blanks – in different sizes and pressure classes.
ASME B16.5 and B16.48 A350 LF2 and A516 Gr.70 flanges ready for shipment to Russia
Product highlights include:
- Figure-8 Blinds: 1″-10″ CL300-CL600 FF, Material: A516 Gr.70
- Blind Flanges: 2″ CL150 RF, Material: A350 Gr.LF2 + Hot-Dip Galvanized
- SW Flanges: 1″ SCH160 CL150 RF, Material: A350 Gr.LF2
- WN Flanges: Sizes from 1½” to 20″, Pressure Classes CL150–CL600, Material: A350 Gr.LF2
- Hot-Dip Galvanized WN Flanges: 2″ SCH160 CL150 RF, A350 Gr.LF2 + Zinc Coating
These flanges were manufactured strictly in accordance with ASME B16.5 and ASME B16.48, ensuring full compliance with dimensional tolerances, pressure ratings, and material specifications.
Material and Quality Assurance
Haihao Group selected A350 Gr.LF2 low-temperature carbon steel and A516 Gr.70 pressure vessel steel for this order – both materials known for their excellent impact resistance, weldability, and mechanical strength.
All products underwent:
- Heat treatment and PMI (Positive Material Identification)
- Dimensional and visual inspection
- Non-destructive testing (NDT)
- Hot-dip galvanizing thickness verification
- Material test certificate (EN10204 3.1)
This ensures that every flange meets international project standards and performs reliably in oil, gas, and refinery applications.
Hot-Dip Galvanizing for Enhanced Corrosion Resistance
Some flanges in this batch feature hot-dip galvanizing, forming a durable zinc layer that significantly improves corrosion resistance in harsh environments such as offshore or low-temperature regions.
Combined with heat treatment, this process ensures long-term durability and safety for critical connections in Russian industrial pipelines.
Commitment to Global Quality and Service
Haihao Group continues to be a trusted supplier of forged steel flanges, fittings, and pipeline components to global EPC contractors and energy companies.
Our team ensures each shipment — from design and production to final inspection — adheres to both ASME and client-specific standards.
The successful delivery to Russia once again highlights Haihao Group’s reputation for quality assurance, reliable delivery, and professional service in the global piping industry.