PTFE Coated Ring Joint Gaskets
PTFE coating applied to the gaskets’ outer sealing surfaces to make the gaskets have good corrosion resistance.
Welcome to Learning About PTFE-Coated Ring Joint Gaskets
The PTFE-coated ring joint gaskets are metal ring gaskets with a PTFE coating applied to their sealing surfaces. It is designed to prevent gasket or flange erosion and is commonly used in abrasive media applications. The gasket materials used are 316 stainless steel, soft iron, carbon steel, low-mild steel, F5, and super duplex.
The PTFE-coated can is available in blue, yellow, or black. Our products comply with API 6A, ASME B16.20, and NACE MR0175 requirements.
Applications
PTFE-coated ring joint gaskets find widespread use in the oil and gas, petrochemical, chemical processing, offshore, and refinery industries.
Ring Joint Gasket Materials Chart
| Materials | UNS Number | Max Hardness Brinell | Max Hardness Rockwell | Abbreviation |
|---|---|---|---|---|
| Soft Iron | - | 90 | 56 | D |
| Low Carbon Steel | - | 120 | 68 | S |
| F5 | K42544 | 130 | 75 | F5 |
| AISI 304 | S30400 | 160 | 83 | S304 |
| AISI 316 | S31600 | 160 | 83 | S316 |
| AISI 347 | S34700 | 160 | 83 | S347 |
| AISI 410 | S41000 | 170 | 86 | S410 |
| Alloy 600 | N06600 | 200 | 92 | UNS Number |
| Alloy 625 | N06625 | 200 | 92 | UNS Number |
| Alloy 800 | N08800 | 200 | 92 | UNS Number |
| Alloy 825 | N08825 | 200 | 92 | UNS Number |
| Hastelloy C276 | N10276 | 200 | 92 | UNS Number |
| Duplex | S31803 | 250 | - | UNS Number |
| Super Duplex | S32760 | 200 | 92 | UNS Number |
| Monel 400 | N04400 | 200 | 92 | UNS Number |
| Titanium Gr.2 | R50400 | 215 | 94 | UNS Number |
