1045 Cold Drawn “Blue”

Discussion
This experiment involved the use of 1045 Cold Drawn “blue” which the number was given to this type of steel by the American Iron and Steel institute (AISI). Each number represents the composition of the sample.


1. First No.- indicates the major alloy alloying element (1-carbon)


2. Second No- designates a sub-grouping within the major alloy system


3. The last two numbers indicate the approximate amount of carbon in the steel


Looking at samples after final polishing under the microscope with magnification 40x showed a lot of scratches showing details. Then after etching the sample was free of scratches and its grain structure was noticed.


On the Rockwell tester


The sample given was found to be a medium carbon steel followed with a phase diagram, which the lever law was used to draw the graph.


Abstract
The purpose of this experiment was to view the grain outline of the Cold drawn brass of the (AISI) number 1045 “blue”. It was found by using different equipments, which was followed by a phase diagram, which the lever law was used to draw the graph. The sample given was found to be a medium carbon steel. From the experiment it was found that the lower the percentage of carbon in a steel the softer and more flexible the material becomes.