A106 bututu mara nauyi shine bututun ƙarfe mara kyau wanda aka samar dashi daidai da al'ummar Amurka don gwaji da kayan Amurka (Astm) Standard A106. Wannan madaidaicin yana ƙayyade kayan, girman, tsari na masana'anta, kaddarorin na ciki da sauran buƙatun bututun ƙarfe a aikace-aikacen masana'antu daban-daban.
