brittle
Cast iron, is one example of a non-ductile metal. Unlike ductile metals, copper, steel, aluminium - cast iron is too brittle to be reworked.
Aluminium is ductile and has a low melting point and density.
Almost any metal might be included in a steel alloy. The simplest alloy that is called steel is an alloy of just iron and carbon. But it is the ratio that is important (e.g. cast iron is also an alloy of just iron and carbon, but it has too much carbon making it too brittle to be steel). There are also a few nonmetals (e.g. boron, silicon) that might be included in a steel alloy.
The alloy of steel is carbon and iron.
steel is an alloy
it is ductile. For hardened stainless steel it gets less ductile, but not brittle.
more brittle
Cast iron, is one example of a non-ductile metal. Unlike ductile metals, copper, steel, aluminium - cast iron is too brittle to be reworked.
A-2 tool steel, D-2 tool steel, 420 stainless steel
It will be lowered with the result that the steel becomes more brittle.
the tensile strength, hardness and yield strength of steel depends on the amount of carbon in it. this is because amount of pearlite increases linearly with % of C in steel from 0-0.77%. Elongation (ductility) is caused by the ferrite in the steel which forms plastic deformation. there are two ways of treating steel: 1) quenching- this is when red hot steel is rapidly cooled to R.T. this traps most of the carbon in the steel forming pearlite that makes it hard and brittle 2)Normalising- this is when red hot steel is cooled slowly to R.T and allows carbon to dislocate and form ferrite which makes it ductile. this is how mild steel is manufactured.
steel isn't as refined but stainless is well stainless and shiny oohlala hot bod Stainless steel is an alloy (mixture) that has chromium mixed in. The chrome makes ordinary steel harder, more brittle, and more resistant to rust and stains, hense, stainless steel.
Aluminium is ductile and has a low melting point and density.
Almost any metal might be included in a steel alloy. The simplest alloy that is called steel is an alloy of just iron and carbon. But it is the ratio that is important (e.g. cast iron is also an alloy of just iron and carbon, but it has too much carbon making it too brittle to be steel). There are also a few nonmetals (e.g. boron, silicon) that might be included in a steel alloy.
Yes, most steel is harder than pure platinum. Steel is an alloy of several different elements. If you were to add alloying elements to Platinum, it would become harder as well.
For ductile materials, the yield stress is always lower than the tensile strength of the material. For brittle material they can usually be considered the same point. Steel is generally considered ductile.
Structural steel is typically very ductile, as far as steels are concerned. Typical values of elongation under load will vary between 18 and 30% with values in the mid-20's not uncommon. Also, structural steels defined under EN10025 also have their Impact Energy rating defined under the standard.