ASTM B415-16 (R2021) pdf free download.Standard Specification for Hard-Drawn Aluminum-Clad Steel Wire.
1.1 This specification covers four conductivities of bare, hard-drawn, round, aluminum-clad steel wire for general use for electrical purposes in sizes 0.2043 to 0.0808 in. mcI (4 to 12 AWG) (Note 1). This specification does not apply to wires used as reinforcement in ACSR conductors. (See Specification B502.)
Note 1—Wire ordered to this specification is not intended for redrawing. If wire is desired for this purpose. the manufacturer shall be consuhed.
1.2 The values stated in inch-pound units arc to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that arc provided for information only and are not considered standard.
3. Ordering Information
3.1 Orders for material under this specification shall include the following information:
3.1.1 Quantity and conductivity of each size.
3.1.2 Wire size: diameter in inches (see 7.1 and Table 1),
3.1.3 Method of measuring elongation if other than 5.3 (optional),
3.1.4 Special package marking if required (Section 16), and
3.1.5 Package size (see 17.1), and
3.1 .6 Place of inspection if other than place of manufacture (Section 14).
4. Material
4.1 The wire shall be composed of a steel core with a substantially uniform and continuous aluminum covering thoroughly bonded to it. The drawn wire shall have the properties and characeristics prescribed in this specification.
5. Tensile Properties
5.1 The wire shall conform to the tensile requirements prescribed in Table 1 (Note 2). In computing tensile strength. the actual diameter of the finished wire shall be used.
NOTE 2—The approximate properties of standard AWG sizes of hard-drawn aluminum-clad steel wire are shown in Table 2 for the information of the user of this specification.
5.2 Wire of a nominal diameter that exceeds a size listed in Table 1 shall conform to the tensile requirements of the next larger diameter.
5.3 Elongation shall be determined by an extensometer suitable for measuring elongation in 10 in. (250 mm) and equipped with a vernier reading to 0.01 in. (0.25 mm). It shall he attached to the test specimen at a tensile load of 10 % of the rated strength. The elongation shall he observed while applying a tension load to the specimen. The reading at the time of fracture shall be taken as the elongation of the specimen. The elongation thus determined shall be not less than 1.5 % in 10 in. Tests shall be disregarded in which the extensometer reading is less than 1 .5 % and in which the fracture does not occur between the extensometer attachments and at least I in. (25.0 mm) from the two attachments. In this case another sample from the same reel or coil shall be tested.ASTM B415 pdf download.