High Temperature ASME SA182 F321H Stainless Steel Flange with 100% Inspection UT/MT/PT
Price:
Negotiable
MOQ:
1 set
Delivery Time:
15-30 Days
Brand:
YUHONG
Product Description
High Temperature Stainless Steel Flanges ASME SA182 F321H 100% Inspection UT/MT/PT
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
Material & Mechanical Properties
| Property | Value | Standard |
|---|---|---|
| Material Grade | ASME SA182 F321H (Ti-stabilized) | ASME BPVC Sec. II |
| Tensile Strength | ≥ 515 MPa (75 ksi) | ASTM A370 |
| Yield Strength | ≥ 205 MPa (30 ksi) | ASTM A370 |
| Elongation | ≥ 30% | ASTM A370 |
| Hardness | ≤ 90 HRB | ASTM E18 |
| Max Operating Temp | 816°C (1500°F) | ASME B16.34 |
Dimensional Specifications
| Parameter | Range |
|---|---|
| Size Range | 1/2" to 48" (DN15 to DN1200) |
| Pressure Class | Class 150 to Class 2500 |
| Face Types | RF, FF, RTJ (or custom) |
| Surface Finish | 3.2 μm Ra or better |
Non-Destructive Testing (NDT)
| Test Method | Standard | Coverage |
|---|---|---|
| UT (Ultrasonic) | ASTM A388 | 100% volume inspection |
| MT (Magnetic Particle) | ASTM E709 | 100% surface examination |
| PT (Liquid Penetrant) | ASTM E165 | 100% surface inspection |
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
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
YUHONG HOLDING GROUP CO., LTD
Location
20 Floor, No.1 New World Building, NO.1018 Min'an Road, Yinzhou District, Ningbo, China, ZIP:315040
Contact Person
Equipment Dept. (Marketing Director)