The difference between ASTM A53 pipe vs A106 Pipe in spec scope, pipe chemical composition, mechanical properties (tensile & yield strength etc), pipe type.
SS Steel compare the difference between ERW Steel Pipe VS SAW Steel Pipes or tubes. the different definition of ERW & SAW pipes or tubes.
SS Steel here compares the advantage between welded pipe and seamless pipes and tubes. which you will need to know more about each kind of carbon pipes.