Dab tsi yog qhov sib txawv ntawm Astm A519 thiab A179
ASTM A519 thiab ASTM A179 yog ob hom tshuaj carbon steel, uas yog siv rau cov kav hlau steel rau ntau lub hom phiaj.
ASTM A519 feem ntau yog rau seamless steel kav rau cov hom phiaj tshuab, npog ntau qib ntawm cov hlau, uas tau faib tawm raws li lub zog tensile thiab lwm yam khoom siv lub cev. Hom kev siv hlau no feem ntau yog siv los tsim cov tshuab ua haujlwm thiab cov qauv txheej txheem.
ASTM A179 yog siv los tsim cov khaub thuas-kos lossis kub-dov boiler thiab kav dej superheater. Hom hlau no yog tus cwj pwm me me thiab phab ntsa tuab, tsim nyog rau cov khoom siv xws li cov pa hluav taws thiab boilers.
Hauv cov ntsiab lus, tus qauv A51 ntxiv rau cov kav hlau ua haujlwm rau cov kav hlau thiab cov qauv A179 tsom rau cov kav dej thiab kev lag luam tshav kub. Qhov ob sib txawv hauv cov khoom siv tshuaj lom neeg thiab cov khoom ntiag tug kom haum rau lawv cov xwm txheej ntawm cov xwm txheej.
