damascus steel
Different kinds of metal can be used in making a propeller. Marine propellers are made from aluminum and stainless steel since they are corrosion resistant.
the metal used in building most planes is alumiun as this type of metal as it can expand as the pressure in side the aircraft is greater than the pressure outside the aircraft. it is also the lightest suitable metal although boeing's 787 has been constucted with acompisite material.
You would use 316 as the filler, it is the more pertinent metal of the two.
bronze is easier to melt. steel is stronger than bronze and most importantly, its much lighter than bronze so you don't get tired swinging or even carrying the weapons. maybe that's why bronze armor is not used since it's super heavy.
heating and melting it
A brass key, brass being an easy to work with metal of the times, was often used in lock making and key making.
swords and arrows.
Cutlery after 'cutlers' who made metal swords and daggers
Bronze, Iron and every other known metal of the time it was used
Fencing is a sport where swords, of a kind are used. Swords, as we generally think of them, are mainly ceremonial today though their variations are still used extensively in combat. Machetes, bayonets etc.
Heavy metal!!
copper metal is ussualy used for making pipes
metal items such as horse shoes, swords, armour, helmets, gates, fences, you name it, if it could be made out of metal a blacksmith could make it although im sure each smith had their own speciality at making cocks
The metal is Tungsten.
In the present wording your question makes no sense. Assuming that you mean something like: 'why did the ancient peoples make metal swords", the answer is that almost until the 21st century, metal was the hardest and most durable metal for any weaponry: much harder than bronze that was used for weapons before metal came into use.
Mostly "COPPER" is used in making wires
clubs, lances(jouting), long swords,