Stainless steel flanges are critical components used for connecting pipes, valves, and equipment, typically made of stainless steel, featuring corrosion resistance, high-temperature resistance, and high strength.

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Here is a detailed introduction to stainless steel flanges:

Material

Common materials for stainless steel flanges include:

304 Stainless Steel: General-purpose stainless steel with excellent corrosion resistance and workability, suitable for most environments.

316 stainless steel: Contains molybdenum for enhanced corrosion resistance, particularly suitable for marine environments or chlorinated media.

321 Stainless Steel: Added with titanium, boasts superior intergranular corrosion resistance, suitable for high-temperature environments.

304L/316L: Low-carbon version, resistant to intergranular corrosion after welding, suitable for applications with high welding requirements.

2. Product Images

3. Type

According to the type of connection and structure, stainless steel flanges are mainly categorized into the following types:

Slip-On Flange: Ideal for low-pressure applications, easy to install.

Weld Neck Flange: Ideal for high-pressure and high-temperature applications, offering high strength and excellent fatigue resistance.

Blind Flange: Used to seal the end of a pipeline for ease of maintenance.

Threaded Flange: Connected by threading, suitable for low-pressure, small-bore piping.

Loose Flange: Used in conjunction with welding rings, suitable for applications requiring frequent disassembly.

Socket Weld Flange: Suitable for small diameter high-pressure pipelines.

4. Standard

The production and manufacturing of stainless steel flanges typically adhere to the following international or national standards:

International Standards: ANSI/ASME B16.5, DIN, EN, JIS, etc.

China Standard: GB/T 9112~9124 series, HG/T 20592~20635 series.