United Steel Industry has successfully completed the production and delivery of a batch of large diameter stainless steel forged flanges for an international industrial pipeline project. Manufactured in accordance with internationally recognized standards, these flanges are engineered to provide excellent sealing performance, superior corrosion resistance, and long-term reliability in demanding operating environments.
The successful shipment highlights United Steel Industry's expertise in precision manufacturing, rigorous quality management, and dependable global supply capabilities. Designed for critical pipeline systems, each flange is produced to ensure consistent performance across industries such as oil & gas, petrochemical, offshore engineering, power generation, and marine construction.
The forged flanges were produced from premium ASTM A182 F316/F316L stainless steel using advanced forging technology and high-precision CNC machining. Every manufacturing stage—from raw material preparation to final machining—was carefully controlled to ensure dimensional accuracy and compliance with customer specifications.
Prior to shipment, all flanges underwent comprehensive inspection procedures, including positive material identification (PMI), dimensional verification, visual inspection, and ultrasonic testing (UT). These quality assurance measures help ensure reliable sealing performance and stable operation under high-pressure service conditions.
|
Item |
Specification |
|
Product |
Stainless Steel Forged Flange |
|
Material |
ASTM A182 F316 / F316L |
|
Standard |
ASME B16.47 Series A |
|
Pressure Rating |
Class 150 |
|
Size |
DN900 (36") |
|
Manufacturing Process |
Forged & CNC Machined |
|
Inspection |
PMI, UT, Dimensional & Visual Inspection |
Large diameter forged flanges are widely used in industrial piping systems where strength, sealing reliability, and corrosion resistance are essential. Typical applications include:
Oil and gas transmission pipelines
Petrochemical processing plants
Offshore platforms
LNG terminals
Power generation facilities
Marine engineering
Water treatment systems
Compared with cast flanges, forged flanges provide higher mechanical strength, improved toughness, better fatigue resistance, and superior structural integrity. When manufactured from F316/F316L stainless steel, they also offer outstanding resistance to corrosion in aggressive service environments, helping reduce maintenance requirements and extend system service life.
At United Steel Industry, every project is supported by strict quality management, advanced manufacturing technology, and experienced engineering teams. From raw material selection and precision machining to inspection, packaging, and shipment, every process is carefully managed to ensure products fully comply with international standards and customer requirements.
Whether supplying standard forged flanges or customized piping components, United Steel Industry remains committed to delivering reliable piping solutions that help customers complete projects safely, efficiently, and on schedule.
Q1: What products were supplied for this project?
Large diameter stainless steel forged flanges manufactured from ASTM A182 F316/F316L in accordance with ASME B16.47 Series A.
Q2: Why are forged flanges preferred for industrial pipelines?
Forged flanges provide higher strength, better toughness, improved fatigue resistance, and greater reliability than cast flanges, making them suitable for critical piping systems.
Q3: Which industries use large diameter forged flanges?
They are commonly used in oil & gas, petrochemical, offshore engineering, LNG, power generation, marine, and water treatment projects.
Q4: What inspections were completed before shipment?
Each flange passed PMI, ultrasonic testing (UT), dimensional inspection, and visual inspection to verify material quality, dimensional accuracy, and overall product integrity.
