ASTM a234 kaarboonka birta birta ah ee birta burushka
Qulqulka a234 WPB Qalabka tuubooyinka WPB waxay ka dhigan yihiin cabirrada waaweyn ee ku rakiban ku rakiban ka soo baxa taarikada birta.
Geedi socodka A2344 WPB Ppefs Fotting waxaa loo yaqaan ¡° BRORITL ± ± kuwaas oo macnaheedu yahay in laga soo qaado tuubooyinka birta ah, oo ah cabirkiisu waa mid si caadi ah loogu soo bandhigayo goolal oo ay wada qabtaan. Waxaa lagu heli karaa dib u eegista Asme B16.9, B16.11, MSS-Sp-79, MSS-Sp-83, MSS-Sp-95, iyo MSS-Sp-95. Sidoo kale si ballaaran loo isticmaalo tuubbada cadaadiska iyo burooyinka weelka cadaadiska ee loogu talagalay adeegga heerkulka dhexdhexaadka ah iyo kuwa sare leh. Darajooyinka waa ASTM A234 WPB, WPC, WPC, WP5, WP91, WP11, WP11, WP12 iyo WP22. ASTM a234 Qalabka kaarboon bir ah ee birta ah waxaa laga samayn karaa tuubooyin aan kala go 'lahayn, tuubooyin gorgor ah ama taarikada iyadoo la adeegsanayo hawlgallada riixida, goosashada, mashiinka, ama isku darka in ka badan howlahan ama ka badan.