Premium Stainless Steel Flanges for Extreme Heat & Pressure Applications

About YUHONG

YUHONG Group is a globally recognized manufacturer specializing in high-performance flanges and pressure vessel components for critical industrial applications. With ISO 9001, ASME, and PED certifications, we deliver engineered solutions for the most demanding operating conditions.

Why Choose YUHONG?
✔ 25+ Years in high-temperature flange manufacturing
✔ Full material traceability with Mill Test Certificates
✔ Custom fabrication for unique project requirements
✔ Global supply chain with fast lead times

Product Overview

YUHONG's ASME SA182 F321H Flanges are specifically engineered for high-temperature service in:

• Petrochemical processing

• Power generation systems

• Refinery applications

• Aerospace components

• Nuclear power plants

These flanges feature stabilized titanium composition for superior resistance to intergranular corrosion at elevated temperatures (up to 816°C/1500°F).

Key Features & Benefits

✔ High-Temperature Performance: Stabilized with titanium for carbide precipitation resistance
✔ Enhanced Strength: Maintains structural integrity under thermal cycling
✔ Full NDT Inspection: 100% UT (Ultrasonic), MT (Magnetic Particle), and PT (Liquid Penetrant) tested
✔ Multiple Standards: Compliant with ASME B16.5, B16.47, and custom specifications
✔ Corrosion Resistant: Excellent performance in oxidizing and mildly reducing environments

Technical Specifications

1. Material & Mechanical Properties

2. Dimensional Specifications

3. Non-Destructive Testing (NDT)

Applications

✅ FCCU and hydrocracker units
✅ Steam headers and superheaters
✅ Heat exchanger systems
✅ High-temperature piping
✅ Boiler and pressure vessel connections

Quality Assurance

YUHONG implements strict quality control throughout manufacturing:

• Raw material verification

• In-process dimensional checks

• Final NDT inspection

• Hydrostatic testing available

• Full documentation package

Ordering Information

Customization Options Available:

• Special sizes outside standard range

• Unique facing requirements

• Heat treatment variations

• Special marking and packaging