m&y

Thickness 3 mm (1/8") 6 mm (1/4")
m 2.5 2.5
y 2,750 psi 3,330 psi


This testing was conducted using 30 mm wide tape formed into a circle of 230 mm diameter.

m & y are gasket constants used for flange design as specified in the ASME Boiler and Pressure Vessel Research Code Division 1 Section VIII Appendix 2. Leak Rates versus Y stresses and m factor for Gaskets is currently being proposed as a new test method in the ASTM F03 Working Group.

Gasket Constant Definitions

m, maintenance factor, is a factor that describes the amount of additional preload required to maintain the compressive load on a gasket after internal pressure is applied to a joint. 

y, seating stress, is the minimum compressive stress (psi) required to achieve an initial seal.

Residents of some states have the right to opt-out of the “sharing” or “selling” of their personal information. Gore does not "sell" the personal information of website users. Gore may "share" the personal information of website users, as standard advertising practice meant to offer you a more personalized service.

If you want to opt-out from Gore “sharing” your personal information, click on Opt-Out of Sharing to turn off the targeting cookies that we share with our advertising partners in order to provide you with personalized information. Disabling sharing will stop the use of cookies to targeted advertising but you may still see generic Gore ads.

Please note that your exercising of the rights outlined will have no adverse effect on the price and quality of our goods or services.

Opt-Out of Sharing

You Have Successfully Opted Out of the Sharing of Your Personal Information

Please note that if you clear your cookies and then use another device or browser, etc. your opt-out status is not transferred to the new device or browser.

Top