1. Q: Cov yeeb nkab steel me me yog dab tsi, thiab nws cov kev qhia tshwj xeeb tshaj plaws yog dab tsi?
A:Cov yeeb nkab me me, tseem hu ua qis - carbon steel yeeb nkab, muaj cov ntsiab lus carbon feem ntau qis dua 0.25%. Nws muaj qhov zoo weldability, formability, thiab toughness. Feem ntau specifications yogASTM A53 (Hom F, Hom E, Qib B)rau lub hom phiaj dav dav thiab qis - siab conveyance,ASTM A106 Qib Brau siab -kev pabcuam kub, thiabASTM A500 Qib Brau structural applications.
2. Q: Thaum twg kuv yuav tsum qhia ASTM A53 Qib B dhau A53 Qib A?
A:QhiaASTM A53 Qib Bthaum yuav tsum muaj zog dua. Nws qhov kev tawm dag zog tsawg kawg nkaus yog 240 MPa (35,000 psi) piv rau 205 MPa (30,000 psi) rau Qib A. Qib B yog qib siv ntau dua rau kev siv siab.
3. Q: Qhov txawv ntawm ASTM A53 thiab ASTM A106 yeeb nkab yog dab tsi?
A:Qhov sib txawv tseem ceeb yog qhov ntsuas kub qhov kev pab cuam.ASTM A106 1 (e.g., Qib B) yog tsim tshwj xeeb rau kev ua haujlwm siab - kub (txog ~ 750℃F / 400 degree), ua rau nws haum rau boilers, superheaters, thiab cov txheej txheem kab.ASTM A53yog rau qhov dav dav, qis dua -kev pabcuam kub.
4. Q: Kuv puas tuaj yeem siv ASTM A500 yeeb nkab rau kev pabcuam cov kua dej?
A: Tsis yog. ASTM A500 1 (e.g., Qib B lossis Qib C) yog astructural tubingnrog tswj tensile zog tab sis tsis yog tsim, sim, los yog npaj rau kev tswj siab. Nws yog siv rau txhua kab, thav duab, thiab kev siv vaj tse.
5. Q: Vim li cas ASTM A106 Qib B yog qhov kev xaiv zoo tshaj plaws rau cov kav dej?
A: ASTM A106 Qib Btau lav tensile thiab tawm los lub zog ntawm qhov kub siab, kom ntseeg tau tias nws tuaj yeem tiv taus cov thermal thiab siab stresses ntawm chav ua haujlwm yam tsis muaj kev nkag siab ntau dhau lossis tsis ua haujlwm.
