Does the quality improve or reduce when steel is made from recycled iron and steel scrap, instead of from iron-ore.
Steel made from scrap can be every bit as good as that made from ore but much, like rebar, is whatever it turns out to be. Depends on what the steel mill wants to make. Rebar is scrap melted down and each batch is different. It's analyzed only to guarantee a minimum strength usually nothing else. As a result it's not a good idea to torch cut, weld or forge rebar, there is no way to determine what the hardness/temper will be after heating. Might be OK might be very brittle. Other steel made from scrap could be analyzed and processed to be any quality desired same as virgin steel.
one of the most important thingss is how much impurities are such as pop metal is added into to recycled steel that affects the overall strength of the steel .
Unless you get some off-chemistry heats mixed in with the scrap, it shouldn't make much difference. What you really want to control is the final chemistry. So specify the composition that is important to you, any residual or tramp elements that could cause any potential problems. If you get the right chemistry, it won't make a difference whether the heat was made of vigin raw materials, scrap, or a combination.
Steel made from scrap can be every bit as good as that made from ore but much, like rebar, is whatever it turns out to be. Depends on what the steel mill wants to make. Rebar is scrap melted down and each batch is different. It's analyzed only to guarantee a minimum strength usually nothing else. As a result it's not a good idea to torch cut, weld or forge rebar, there is no way to determine what the hardness/temper will be after heating. Might be OK might be very brittle. Other steel made from scrap could be analyzed and processed to be any quality desired same as virgin steel.
one of the most important thingss is how much impurities are such as pop metal is added into to recycled steel that affects the overall strength of the steel .
Unless you get some off-chemistry heats mixed in with the scrap, it shouldn't make much difference. What you really want to control is the final chemistry. So specify the composition that is important to you, any residual or tramp elements that could cause any potential problems. If you get the right chemistry, it won't make a difference whether the heat was made of vigin raw materials, scrap, or a combination.
