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Alloying percentage


#1

Let’s say I want to make an alloy like 90-10 bronze (copper-tin).
Is the percentage by weight or by volume? I’m guessing weight.


#2
Let's say I want to make an alloy like 90-10 bronze (copper-tin).
Is the percentage by weight or by volume? I'm guessing weight. 

Correct. It’s by weight.

Peter


#3

It is of course by weight.

Woody S.
modern-wave.com


#4

Percentages of alloys are almost always expressed as weight percent
so for your bronze it will be 9kg copper to 1 kg tin. Occasionally
you get compounds expressed as mol percent or atom percent such as
the amount of yttria in cubic zirconia. Volume percent used to be a
standard for liquids/titration but you would then need to know the
concentration (mol)of each liquid.

Nick Royall


#5
Let's say I want to make an alloy like 90-10 bronze (copper-tin).
Is the percentage by weight or by volume? I'm guessing weight. 

Sorry for not getting back to you, have some end of year projects to
do.

Weight is the correct method.

Regards Charles A.

P.S. No doubt this has already been answered, but I’m just reading
my email now.


#6

yes, its by weight. and percent should always be calculated on the
basis of weight assuming that whatever weight it is, is given
percentage… in other words weight must be devided by the
percentage and multiplied by 100 always to ge the total weight or
multiplied by the percent of other metal. to get the share (weight)
of that metal.