A steel has ASTM grain size number 6. What is the average number of grains per mm^2 and inch sq at 1x in the steel?
A steel has ASTM grain size number 6. What is the average number of grains per mm^2 and inch sq at 1x in the steel?
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n=6 And formula is N×(M/100)^2=2^n-1 N =number of grains per inch sq M=Magnification n=ASTM standard number Then at M=1x magnification, By using the above formula we get 320000grains/inch sq and by using conversation 1 inch =25.4mm We get 496grains/mm sq
n=6 And formula is N×(M/100)^2=2^n-1
N =number of grains per inch sq
M=Magnification
n=ASTM standard number
Then at M=1x magnification, By using the above formula we get 320000grains/inch sq and by using conversation 1 inch =25.4mm We get 496grains/mm sq
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