This specification covers two types of molybdenum flattened wire for electron tubes. These types are UNS R03604 and UNS R03603. The material shall conform to the prescribed limits of chemical composition such as carbon, oxygen, nitrogen, hydrogen, aluminum, calcium, silicon, iron, tungsten, potassium, and tin contents. The material shall be tested for hardness, temper, bending, and delamination.
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 two types of molybdenum flattened wire up to 0.050 in. (1.27 mm) thick and up to 0.375 in. (9.52 mm) wide, specifically for use in electron tubes. The two grades have UNS numbers R03604 and R03603.
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 The following safety hazards caveat pertains only to the test method described in this specification (see 10.2). 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 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.
E18 Test Methods for Rockwell Hardness of Metallic Materials
E315 Test Methods for Chemical Analysis of Molybdenum
E384 Test Method for Knoop and Vickers Hardness of Materials
electron tubes; molybdenum; molybdenum flattened wire; UNS R03604; UNS R03603; Electrical conductor wire--specifications; Electronic materials/applications--specifications; Electron tubes--wire; Metal electronic components/devices--specifications; Molybdenum (electronic applications)--specifications; UNS R03603 (molybdenum); UNS R03604 (molybdenum); Wire--electronic devices;
ICS Number Code 29.060.10 (Wires)
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