Ko te parahi te ahua o te koranu e pa ana ki te parahi me te huānga whakakotahitanga matua o Tin. Ka piki te pakeke me te kaha o te parahi me te pikinga o te ihirangi Tin. Ka whakahekehia hoki te ductility ki te pikinga o te tine ki runga ake i te 5%. Ina taapirihia te konumohe (4% ki te 11%), ka kiia ko te konumohe he konumohe parahi, he nui ake te parenga waikura. He rite te utu o te parahi ki te parahi na te mea he tine he whakarewa utu nui.
