There are various formula and online calculators that let one easily calculate the stainless steel weight.
Stainless steel is categorized under 5 categories and these include the 200 and 300 series of stainless steel which are known as austenitic stainless steels. Then there is the 400 series, which are the ferritic stainless steels. The 400 series and 500 series are called martensitic stainless steels. Then there are the PH types of stainless steel, which are the precipitation hardening grade stainless steels.
And lastly, there is the mixture of ferritic and austenitic stainless steels, which are known as duplex stainless steels.