Cast Iron tubs the finish is stronger in most cases then fiberglass BUT there are new acrylic tubs like Americast that are just as strong (and cost the same) as Cast Cast Iron will not shift like the plastic tubs do BUT you do have a lot more heat loss as the mass of the cast iron is hard to keep warm. Acrylic tubs you have to be extra careful what cleaning agents to use as the finish can scratch more easily
If the pipe is No Hub cast Iron you can use a mission cap If the cast Iron is bell then you caulk in a cast iron plug If the cast iron is a spigot end you get a transition coupling either standard weight CI or extra heavy and then use a cast iron cap in the transition coupling
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Cast iron is, as the name implies, "iron" which has been "cast", or melted and poured into a mold. The material is usually not really pure iron but rather an alloy including carbon and (often) silicon.
A cast iron tub is about 325lbs. steel is about 75lbs. Tap on tub if it sounds solid it is cast iron.
No, salt will not scratch the surface of a cast iron grill. Salt is the most highly recommended material used to clean cast iron.
No, it is not so hard.
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Cast Iron tubs the finish is stronger in most cases then fiberglass BUT there are new acrylic tubs like Americast that are just as strong (and cost the same) as Cast Cast Iron will not shift like the plastic tubs do BUT you do have a lot more heat loss as the mass of the cast iron is hard to keep warm. Acrylic tubs you have to be extra careful what cleaning agents to use as the finish can scratch more easily
Iron is durable and resistant to scratching, but it is not scratch-proof. Iron can develop scratches, especially when in contact with harder materials like diamond or abrasive minerals. Regular maintenance and care can help minimize scratching on iron surfaces.
on some vehicles yes aluminum will scratch easily so if you need to be sure scratch it with a screwdriiver it will mark if it's aluminum, cast iron will not mark You can also check it with a magnet. The magnet won't stick to aluminum but it will stick to steel.
Diamond is harder than iron. Diamond is the hardest known natural mineral and can scratch iron.
Cast iron is fabricated in blast furnaces where iron ore is reduced by coke to cast iron, according to Wikipedia.
no cast iron is more superior than foregn iron
If removable a steel grate is easier to clean. Cast iron is a soft metal and will rust easy, if cleaned with soap and water. Some products made of cast do have Teflon coating, which will make it easier to clean. Teflon is easier scratch, so use a washcloth in warm soapy water.
Grey cast ironWhite cast ironMalleable cast ironDuctile cast iron
When Pig Iron is melted and recooled it is called Cast Iron