A53 seamless steel yeeb nkab yog Asmeskas tus qauv steel yeeb nkab uas tau muab faib ua ob hom: A53A thiab A53B. Ntawm lawv, A53-A sib npaug rau Tuam Tshoj 10 # hlau, A53-B sib npaug rau Tuam Tshoj 20 # hlau, thiab A53-F yog sib npaug rau Tuam Tshoj cov khoom siv q235.ASTM A53 steel kav yog tsim rau thauj cov kua thiab gases nyob rau hauv cov roj av, natural gas, thiab tshuaj industries.