Nickel
Cobalt is used in rechargeable batteries, superalloys, and pigments due to its strength and heat resistance properties. Nickel is commonly used in stainless steel production, as well as in rechargeable batteries, magnets, and coins due to its corrosion resistance and magnetic properties.
Nickel is corrosion resistant, which means it doesn't rust so it is used in making stainless steel things like kitchen equipment, cutlery, a lot of surgical equipment is made out of stainless steel, also the tools that dentists use are made out of stainless steel because stainless steel is very hygienic. Nickel is used to make alloys, coins, magnets, rechargeable batteries and electric guitar strings.
chromium
It is used in many consumer products such as stainless steel, magnets, coins, rechargeable batteries, electric guitar strings and special alloys. Used for plating in the green tint of glass.
While stainless steel is an alloy of steel, the primary difference between stainless steel and other steels is that the stainless steels have a high percentage (about 10% or even more) of the element chromium in them.
If you are referring to stainless steel then one of the features that characterize stainless steels is a minimum 10.5% chromium content as the principal alloying element. The 'recipes' for making stainless steel are many and varied.
Chromiun is the primary metallic element added to steel to make stainless steel.
Stainless steel is an Alloy steel because it contains chromium as an alloying element - steels without alloying elements are called carbon steels.
The 28th element on the periodic table is nickel (Ni). It is a silvery-white metal known for its corrosion resistance and use in alloys such as stainless steel. Nickel is commonly used in coins, magnets, and batteries.
Chromium!
Important alloying elements in stainless steel are chromium, nickel, vanadium, molybdenum.
It is THE key alloying element of stainless steel.