ASTM A234 Kufunga kune akawanda mamakisi, akadai seWPB, WPC, WP9, WP9 WP11, WP12, WP22, WP91 uye zvichingodaro.
Mune aya grade grade wpb ndiyo yakajairika zvinhu zvinoshandiswa pakati nepakati uye pombi yakakwira tembiricha. W zvinoreva kuti mauto, p zvinoreva kudzvinyirira, B iri giredhi b, zvinoreva kusimba kushoma.