SA182 F316 flanges are forged stainless steel flanges manufactured in accordance with the ASTM SA182 standard, designed for high-temperature and high-pressure service. Made from F316 austenitic stainless steel, these flanges offer excellent corrosion resistance, especially in environments containing chlorides and other aggressive chemicals.
With a melting point of approximately 1400°C (2550°F), SA182 F316 flanges maintain strong mechanical properties under elevated temperatures, making them a reliable choice for demanding industrial applications.

They are widely used in industries such as:
- Petrochemical plants
- Oil & gas refineries
- Chemical processing facilities
- Power generation systems
In particular, SA182 F316 RTJ flanges are ideal for sealing systems that handle halide or halogen-containing compounds.
Trusted SA182 F316 Flange Manufacturer in China
If you are sourcing SA182 F316 flanges in China, Jizhong stands out as a reliable manufacturer and supplier for global B2B buyers.
At Jizhong, we provide:
- High-quality forged stainless steel flanges
- Competitive factory pricing
- Full range of flange types (Slip-On, Weld Neck, Blind, Socket Weld, Threaded, RTJ)
- Custom sizes and specifications
- Fast delivery and stable supply chain
We specialize in supplying SA182 F316 slip-on flanges at factory-direct prices, ensuring both quality and cost efficiency for industrial procurement.
Manufacturing Process of SA182 F316 Flanges
SA182 F316 flanges, especially weld neck flanges, are commonly manufactured through precision machining processes such as:
- CNC turning
- Milling operations
The process includes:
- Forging the raw material
- Heat treatment for improved mechanical properties
- Precision machining to achieve required dimensions
- Final finishing and inspection
This ensures:
- High dimensional accuracy
- Consistent quality
- Availability in customized sizes
Testing and Inspection of SA182 F316 Flanges
To ensure compliance with international standards, Jizhong performs both destructive and non-destructive testing on all SA182 F316 flanges.
Key Inspection Methods:
- Visual Inspection
Detects surface defects such as cracks, dents, and porosity - Dimensional Inspection
Verifies flange size, tolerance, and specifications - Magnetic Particle Testing (MT)
Identifies surface and near-surface flaws - Radiographic Testing (RT)
Uses X-rays to detect internal inconsistencies - Ultrasonic Testing (UT)
Uses sound waves to identify internal defects
All products are supplied with test certificates to guarantee compliance with required specifications.
Types of SA182 F316 Flanges
SA182 F316 flanges are available in a variety of types, including:
- Weld Neck Flange
- Slip-On Flange
- Blind Flange
- Socket Weld Flange
- Threaded Flange
- Lap Joint Flange
- Orifice Flange
- RTJ Flange
Each type is designed for specific applications depending on pressure, temperature, and maintenance requirements.

Welding Techniques for SA182 F316 Flanges
Proper welding is essential to maintain the integrity of stainless steel flanges. Common welding methods include:
- Shielded Metal Arc Welding (SMAW)
Uses a flux-coated electrode to create an arc - Tungsten Inert Gas Welding (TIG / GTAW)
Provides high precision and clean welds - Gas Metal Arc Welding (GMAW / MIG)
Uses continuous wire feed for efficient welding
These methods ensure strong, corrosion-resistant joints in various piping systems.
Difference Between SA182 F316 Slip-On and Blind Flanges
Understanding the difference between flange types is crucial for proper selection:
- Slip-On Flange
*Installed by sliding over the pipe
*Ideal for systems requiring frequent disassembly
*Easier alignment and installation - Blind Flange
*Used to seal the end of a pipe or valve
*Prevents leakage and flow
*Suitable for pressure testing and isolation
Why Choose Jizhong for SA182 F316 Flanges?
As a professional manufacturer, Jizhong is committed to delivering:
- Strict quality control
- International standard compliance (ASTM SA182)
- Competitive pricing
- Reliable delivery schedules
- Global export experience
Whether you are looking for SA182 F316 socket weld flanges, RTJ flanges, or custom solutions, Jizhong provides a one-stop sourcing solution for B2B buyers worldwide.
Contact Us
If you are searching for a trusted SA182 F316 flange supplier or stockist, feel free to contact Jizhong for technical support, quotations, and product catalogs.









