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This specification covers the standard for thermostat metals in the form of sheet or strip proposed for use as temperature-sensitive elements of devices for controlling, compensating, or indicating temperature. Metals shall adhere to physical requirements such as maximum sensitivity range, maximum recommended temperature, flexibility, electrical resistivity, modulus of elasticity, specific heat, density, and hardness.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers thermostat metals in the form of sheet or strip that are used for the temperature-sensitive elements of devices for controlling, compensating, or indicating temperature and is intended to supply acceptance requirements to purchasers ordering this material by type designation.
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 Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
B63 Test Method for Resistivity of Metallically Conducting Resistance and Contact Materials
B106 Test Methods for Flexivity of Thermostat Metals
B223 Test Method for Modulus of Elasticity of Thermostat Metals (Cantilever Beam Method)
B362 Test Method for Mechanical Torque Rate of Spiral Coils of Thermostat Metal
B389 Test Method for Thermal Deflection Rate of Spiral and Helical Coils of Thermostat Metal
B478 Test Method for Cross Curvature of Thermostat Metals
B753 Specification for Thermostat Component Alloys
C351 Test Method for Mean Specific Heat of Thermal Insulation
E92 Test Methods for Vickers Hardness and Knoop Hardness of Metallic Materials
E384 Test Method for Microindentation Hardness of Materials
ICS Number Code 77.150.99 (Other products of non-ferrous metals)
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ASTM B388-06(2018), Standard Specification for Thermostat Metal Sheet and Strip, ASTM International, West Conshohocken, PA, 2018, www.astm.orgBack to Top