I-ASTM A234 inamabakala amaninzi, njenge-WPB, i-WPC, WP5, WP9 WP1, WP12, WP22, i-WP91 njalo njalo.
Kule nqanaba le-WPB esemgangathweni yeyona nto ixhaphakileyo esetyenziselwa imibhobho yeqondo eliphakathi neliphezulu. I-W kuthetha ukuba bhensan ukufod, p bufuphi, B iBanga B, chaza ubuncinci bomhlaba.