Standard Test Methods for Creep Relaxation of a Gasket Material

Importancia y uso:

4.1 These test methods are designed to compare related materials under controlled conditions and their ability to maintain a given compressive stress as a function of time. A portion of the torque loss on the bolted flange is a result of creep relaxation. Torque loss can also be caused by elongation of the bolts, distortion of the flanges, and vibration; therefore, the results obtained should be correlated with field results. These test methods may be used as a routine test when agreed upon between the consumer and the producer.

Note 1: Test Method B was developed using asbestos gasket materials and at issuance substantiating data were not available for other gasket materials.

Subcomité:

F03.20

Referida por:

F0607-03R19, F1276-23, F0037-06R24, F0104-11R20

Volúmen:

09.02

Número ICS:

23.100.60 (Filters, seals and contamination of fluids), 73.080 (Non-metalliferous minerals)

Palabras clave:

creep relaxation; deflection; gasket material; platens; relaxometer; strain; stress; temperature; torque bolt; torque loss;