There are different kinds of metal to use for different applications, whether you’re making jewelry or building large structures of various kinds.
The cheapest jewelry that you find in vending machines and the like is just made out of cheap steel and it easily rusts and corrodes when exposed to moisture.
While it is more expensive, stainless steel will allow companies to make jewelry that is mostly corrosion resistant. My mom was a professional artist and crafter for a few years during my early childhood, which meant that we had some of the most fun among my friends when it came to activities at home with the rest of the family. My siblings and I were always involved in some kind of art or crafting project with our parents, usually with our mother taking the lead. She didn’t just make jewelry out of stainless steel wire, she also used silver, gold, and platinum as well. To our father’s surprise, she sold most of her booth during her first craft show. He was worried that she was biting off more than she could chew by having a booth at the local art fair, but it was great seeing the huge positive response from both customers and competing booths alike. Clearly my mother knows what she’s doing when it comes to metal wire and jewelry. While steel rebar is much different than jewelry wire, it still comes in different sizes and material compositions depending on what it’s being used for. For instance, if you need steel rebar that is resistant to rust and corrosion, galvanized steel rebar tie wire comes with a zinc coating to protect its surface.