1370/1070 Aluminum Flat Busbar Bus Bar for Transformer

Pure aluminum has a conductivity of about 65 percent of the International Annealed Copper Standard (lACS). Aluminum can be produced 99.99 percent pure; however, this purity is costly to achieve and the mechanical properties are low.
   
Aluminum 1370 is a commercial high-purity aluminum with 61 percent conductivity. The tensile strength of each 1370 temper is determined by the amount of work given the metal during fabrication. Today, most 1370 aluminum bus conductors are of -Hlli temper for extrusions, -H112 for sawed rolled plate, and -F for cast bars.
    
Chemical  Composition
Properties
Aluminium and Copper Specifications

Definitions :
Specific Heat: The heat required to raise the temperature of its unit by mass by 1ºC.(This is a physical property)
Density: This is it's mass per unit volume. This is defined as mass divided by volume.
Melting Point: The point at which it changes state from a solid to a liquid.
Ultimate Tensile Strength: The maximum stress value as obtained on a stress-strain curve.
Ultimate Shearing Strength: The force that will shear the material, and act in the plane of the area at a right angle to the area subjected at such force.
Elastic Modulus: The ratio of the unit stress to the unit strain within the proportional limits of a material in tension or compression.
0.2% Tensile-proof Strength: (yield strength) The point between 60- 80% of the ultimate tensile strength of the material where a 0.2% permanent deformation will occur.
Coefficient of Expansion: This is the fractional change in length per degree of temperature change.
IACS: International Annealed Copper Standard.

  
                                         Mechanical Properties of Aluminum Bus Conductor and Related Alloys
                            (The Aluminum Association ; ASTM B 236, B 241, and B 429; and Manufacturer's Listings)