Q: Dab tsi yog qhov txawv ntawm ASTM A53 thiab ASTM A106?
A:ASTM A53 npog cov yeeb nkab haum rau kev siv tshuab thiab kev siv siab, suav nrog peb hom (S - seamless, E - hluav taws xob-kuj welded, F - rauv- pob tw welded) -5. ASTM A106 yog ib qho kev qhia tshwj xeeb rauseamless carbon steel yeeb nkab rau siab -kev pabcuam kub -4-8-9.
Q: Puas yog qib A53 thiab A106 haum rau siab -kev pabcuam kub?
A:Tsis yog. Thaum A106 yog tsim los rau siab -kev pabcuam kub -4-8-9, A53 feem ntau yog npaj rau kev siv ntau lub hom phiaj. Rau qhov kub ntawm 440 ° C, A106 Gr. B tuaj yeem siv tau tab sis yuav tsum tau ua tib zoo saib xyuas kev nkag siab thiab graphitization -9.
Q: Dab tsi yog cov qib khoom sib txawv muaj nyob hauv cov qauv no?
A:Ob qho qauv feem ntau muab Qib A thiab Qib B, nrog Qib B muab kev siv zog ntau dua -5.
Q: Puas yog ASTM A53 Hom F yeeb nkab tso cai rau txhua daim ntawv thov siab?
A:Tsis muaj. Piv txwv li, nws tsuas yog tso cai rau cov kab tawm hauv lub tshuab hluav taws xob siab thiab qee zaum txwv tsis pub cov khoom siv hluav taws xob los yog cov hluav taws kub kub hauv cov khoom siv tshuab -3-10.
Q: Dab tsi yog qhov tseem ceeb microstructural kev txhawj xeeb rau A106 Gr. B nyob rau hauv ntev - lub sij hawm siab - kub kev pab cuam?
A: Graphitizationtuaj yeem tshwm sim, uas yog tsim cov graphite nodules, uas ua rau embrittlement, tshwj xeeb tshaj yog nyob rau ntawm qhov kub siab tshaj 440 ° C -9.
