Significance and Use
These test methods are used for determining response to temperature change or flexivity of thermostat metal. The flexivity is calculated from the temperatures, dimensions of specimen, and the relative movement of the specimen. The simple beam method (Method A) is the method for certification. Any use of the spiral coil method (Method B) is to be mutually agreed upon between the user and supplier.
1.1 These test methods cover the determination of flexivity (a measure of thermal deflection rate or deflection temperature characteristics) of thermostat metals.
1.1.1 Test Method A—Tested in the form of flat strip
0.015 in. (0.38 mm) or over in thickness.
1.1.2 Test Method B—Tested in the form of spiral coils less than 0.012 in. in thickness.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
B389 Test Method for Thermal Deflection Rate of Spiral and Helical Coils of Thermostat Metal
coefficient of thermal expansion; flexivity; micrometer; temperature; thermostat metal; Coefficient of thermal expansion (CTE); Flexivity; Flexural testing; Magnesium alloys; Micrometer measurement; Temperature tests; Thermostat metals; UNS M11311 (magnesium alloy); UNS M11312 (magnesium alloy); UNS M11610 (magnesium alloy); UNS M11800 (magnesium alloy, casting); UNS M15100 (magnesium alloy); UNS M16400 (magnesium alloy); UNS M16600 (magnesium alloy) ;
ICS Number Code 77.040.10 (Mechanical testing of metals)
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Citing ASTM Standards
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