ASTM A234 specification muaj ntau ntau qib, xws li WPB, WPC, WP5, WP9 WP11, WP9, WP91 thiab lwm yam.
Nyob rau hauv cov qib theem WPB yog cov khoom siv feem ntau siv rau nruab nrab thiab cov raj kub kub. W txhais tau tias weldable, p txhais tau tias siab, B yog qib B, xa mus rau qhov tsawg kawg nkaus muaj zog.