You add some chromium to the alloy when producing it. It's not something you can do at home, though you may be able to plate an existing steel piece with a thin layer of chromium.
chrome
Chrome is used with iron to create stainless steel alloys.
chrome rims are made of steelthe steel is then cleaned and polished and subjected to a chemical process that makes the chromeif you find an old chrome rim u can see where rocks etc have chipped the chrome off an that allows rust to get at steel rim
Chrome won't rust. That's why it's plated over steel. But any tiny crack or flaw in the chrome plating can allow rust to penetrate the "skin" of chrome and attack the metal beneath. As the chrome barrier is compromised, the rust continues to spread. More and more steel is attacked and breaks down. Stainless steel is (usually) designed so the steel (iron with a bit of carbon) is alloyed with a small percentage of chromium in it. This chromium is what makes the stainless steel resistant to attack. Stainless steel resists attack by rust "all the time" while chrome plated steel resists attack by rust only until any flaw or crack appears or is created. It is then vulnerable to attack. A scratch on stainless steel, while unsightly, is not going to open a path for attack by rust. Note: Rust doesn't "attack" steel. It forms as the metal is chemically attacked. The oxidized iron that appears after the chemical attack is the rust.
Usually made from Chrome plated brass
p-91 is an alloy. carbon is added to iron to make carbon steel. From carbon steel, chrome ( or other metals, but in this case chrome) is added to make an alloy steel. I believe p-91 is has 9.25% chrome.
chrome
Yes, it is still a carbon steel with chrome and molybdenim molecules weaved into the micro structure.
Chrome is used with iron to create stainless steel alloys.
Chrome is more durable and cheaper than stainless steel.
Use a magnet. If it sticks it's chrome. If not, it's polished aluminum.
Chrome is a metal, the symbol is Cr. It is used to make the alloy for stainless steel and or plating other metals to give them a high gloss rust resistant finish.
Stainless steel
Pinballs basically come in two different materials; carbon-steel and chrome-steel. Carbon steel has less ability to retain magnetism. Chrome-steel can hold magnetism very easily (and quickly). Generally speaking, chrome-steel balls shine better than carbon-steel balls.
Question doesn't really make sense. There's no bike that's made out of chrome. You can have a steel bike that is chromed on the surface. Or you can have a steel bike made out of an alloy containing chrome. Chrome-Molybdenum, Cr-Mo is a common, strong steel alloy. And it can be chromed. What'll decide the weight of a bike isn't as much the material, as what the bike is intended to be used for, and what it's allowed to cost. An expensive race bike will be light. A cheap department store bike will be heavy.
Combination of strength, weight, durability, and cost that goes into make something. Steel is strong, but really heavy. Aluminium is light, but not very strong. Also, some metals make the alloy not rust. An example is Stainless Steel. Its a combination of Steel and Chrome. The Chrome makes the Stainless steel cost more. Its an Engineer's job to find the best alloy for the job.
No, for example high chrome stainless steel is not magnetic.