1.) Tempering a steel is the process of changing the internal grain structure, it is usually used in conjection with the Normalization process.2.) Annealing is the process of controlled or times cooling which reduces intergranular boundary structures, it is usually used in conjuction with the weilding process.3.) Rust is a Material change that is very simliar in effect to the Heat Treat process know as Decarburization.4.) Decarburization often cause fine surface cracking as a by-product.5.) ERW-Line Pipe is always Bevel Finished. This is the reason for its higher strength in operational application.
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1.) Tempering a steel is the process of changing the internal grain structure true it is usually used in conjection with the Normalization process don't know 2.) Annealing is the process of controlled or times cooling which reduces intergranular boundary structures true it is usually used in conjuction with the weilding process false 3.) Rust is a Material change true that is very simliar in effect to the Heat Treat process know as Decarburization false
