which metals that magnet do not stick too?any ideals?
generaly speaking magnets will not attract none ferious metals, aluminum, copper, brass, bronze and other such alloys, it will also not attract stainless steel that has a very high chromium level.
why do they use copper to make coins??
other metals such as nickel have become too valuable to use in coins. some nations such as canada still use nickle/iron alloys for their quarters. (thats why a canadian quarter is magnetic). copper is a cheap alternative. but in times of war when cop...
i want to know the reasons that pure aluminium and copper are classified as easy to machine materials?
*The easiest of the coppers to machine are the special free machining grades which approach the ease of machining of the standard brass. The machining properties of all the materials vary and it is suggested that for best results the tool angles, cut...