1. Scope

1.1 This specification covers nine thicknesses (0.00017 to 0.00050 in. (0.0043 to 0.0127 mm)) of annealed aluminum foil used in the manufacture of capacitors.

1.2 Foil to be used as anodes in electrolytic capacitors is beyond the scope of this specification.

1.3 Alloy designations are in accordance with ANSI H35.1. The equivalent Unified Numbering System alloy designations are those of Table 1 preceded by A9, for example, A91145 for Aluminum 1145 in accordance with Practice E527.

1.4 For acceptance criteria for inclusion of new aluminum and aluminum alloys in this specification, see Annex A1.

1.5 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

2. Referenced Documents

B193 Test Method for Resistivity of Electrical Conductor Materials
E1251 Test Method for Optical Emission Spectrometric Analysis of Aluminum and Aluminum Alloys by the Argon Atmosphere, Point-to-Plane, Unipolar Self-Initiating Capacitor Discharge
E227 Test Method for Optical Emission Spectrometric Analysis of Aluminum and Aluminum Alloys by the Point-to-Plane Technique
E252 Test Method for Thickness of Thin Foil and Film by Weighing
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E34 Test Methods for Chemical Analysis of Aluminum and Aluminum Base Alloys
E345 Test Methods of Tension Testing of Metallic Foil
E527 Practice for Numbering Metals and Alloys (UNS)
E55 Practice for Sampling Wrought Nonferrous Metals and Alloys for Determination of Chemical Composition
E607 Test Method for Optical Emission Spectrometric Analysis of Aluminum and Aluminum Alloys by the Point-to-Plane Technique, Nitrogen Atmosphere
E716 Practices for Sampling Aluminum and Aluminum Alloys for Spectrochemical Analysis
H35.1 Alloy and Temper Designation Systems for Aluminum

Index Terms

Aluminum; Capacitor materials; Foil; UNS A91145 (Wr. alum. alloy, non-heat treatable); UNS A91235 (Wr. alum. alloy, non-heat treatable); annealed aluminum foil (for capacitors), spec; 29.050