The hardness of stainless steel varies with the alloy and the finish treatment(s). There are hundreds of different stainless steels, and they come in a range of hardness. In addition, there are many ways to treat steel (stainless or otherwise) to increase (or even decrease) its hardness.
hard
SOFT
Just regular steel, not stainless steel. That metal was too hard for use in coins back in 1943.
440A is a US standard of a martensitic stainless steel. It is known to keep a hard edge but not as tough as some of the other martensitic stainless steel.
The hardness of stainless steel varies with the alloy and the finish treatment(s). There are hundreds of different stainless steels, and they come in a range of hardness. In addition, there are many ways to treat steel (stainless or otherwise) to increase (or even decrease) its hardness.
Stainless steel is generally stronger and more durable than white gold. Stainless steel is a very hard metal and it is more scratch-resistant compared to white gold. White gold, on the other hand, is a softer metal that may scratch or show signs of wear more easily than stainless steel.
Good stainless steel cookware can be hard to find. I suggest Kohl's for some good quality stainless steel cookware. The carry brands such as Circulon which I have always found to be a good quality.
carbon steel is iron with "structured" carbon which make iron strong (hard). stainless steel is steel with different percentage contain of aluminium, nickel, chrome... which give the steel different kind of other characteristics including "stainless- the ability of not getting rusted."
Yep, you can weld steel to stainless and you can weld stainless to steel. You can use steel or stainless welding rod in either case but the steel or steel welding rod will of course rust.
Per the attached related link, the density (hence weight) of stainless is slightly more than the mild carbon steel. Using about 8.03/7.84 ratio of density, for the same volume of material the stainless will weigh 2.4 % more.
Depending on what appliance you get, they can be very hard to clean. Try to find a cleaner with citrus and degreaser in it. A stainless steel refrigerator for example can be cleaned with 'Zep'.
No, Stainless steel is not porous. Steel how ever is.