aluminum has a lower melting point, higher thermal conductivity, and doesn't change color before it goes molten
Steel is a harder and more durable metal than aluminum. Therefore, steel doors are often more durable and more difficult to damage than aluminum doors.
Mild steel
mild steel
stainless steel
Cast iron is more brittle then mild steel
HSS
galvanised steel is a lot more safer....... if u go by the book.... it is upto 10 times stronger than stainless steel in aluminum
Both aluminum and steel are good materials for medical oxygen cylinders. Each material has unique advantages and disadvantages. The characteristics of aluminum cylinders are: 1. lighter weight than mild steel (although high strength steel is of equivalent weight). 2. does not rust 3. does not require re-painting 4. is less impact resistant than steel 5. has a shorter service life 6. lower resistance to heat, eg. looses it's temper (strength) at a lower temperature than steel Steel cylinders are: a. generally heavier than aluminum b. more resistant to impact c. higher resistance to heat before loosing strength d. requires repainting to inhibit rust e. has a longer service life
If the steel contains by weight one or more of the following elements in the proportion shown, it is an alloy steel. 0.3 % or more of aluminium 0.0008 % or more of boron 0.3 % or more of cobalt 0.4 % or more of copper 0.4 % or more of lead 1.65 % or more of manganese 0.08 % or more of molybdenum 0.3% or more of nickel 0.06 % or more of niobium 0.6 % or more of silicon 0.05% or more of titanium 0.3 % or more of tungsten (wolfram) 0.05 % or more of zirconium 0.1 % or more of other elements (except sulphur, phosphorus, carbon and nitrogen), taken separately. Any steel not containing one or more of the above elements in the weight proportions shown, is a non-alloy steel.
A cubic meter of steel weighs almost 3 times more than a cubic meter of aluminum. Density of steel is 7.85 g/ cm3, aluminum is 2.7 g/ cm3
The specific heat of aluminum is approximately 0.897 J/g°C and the specific heat of mild steel is approximately 0.450 J/g°C. This means that aluminum requires more energy to raise its temperature than mild steel for a given mass.
No. It is the easiest to weld as the metal puddles well, and the heat runs evenly through the joint.