Astm A694ʻO nā carbon carbon steel steel e like me nā waiwai likeʻole ma muli o ka heleʻana o nā mea'ē aʻe. ʻO kekahi o nā waiwai i hoʻoilinaʻia e nā pahu a puni,ʻoi aku ka ikaika, ke kiʻekiʻe kiʻekiʻe, kiʻekiʻe No laila, he holo holoʻana nā mea noi i nā lako uila i ka hana.