With your hints above, I found some new ones as well. Thanks.
What does A2 Intensity mean? Is it meaning checking by using A2 spec Almen? Then what does it mean when we say A Almen- are we refering to A1 or A2 or ..... which one?
Also the graph in presentation "Shot size & speed to achieve Almen Intensity" under say same link as in your response above, looks a bit confusing to me. A, C, N are shown side by side bunches of graphs (which graph for which I cannot understand) & abscissa says A2 Almen. Can you please explain the various aspects of the graph in brief so that I do not make any wrong interpretation out of it.
Also, in presentation "Chart for wheel speed, RPM, shot flow rate", "# min" is what unit? What about the blanks in the table? Are they "data not available" or are they "not applicable cases"?
