Q: Dab tsi yog qhov siab tshaj plaws hardness rau ASTM A106 Gr. B tom qab kos duab txias?
A: Hardness yuav tsum tsis pub tshaj 250 HBW rau feem ntau cov ntawv thov, tab sis nws tuaj yeem siab dua yog tias tau teev tseg rau cov xwm txheej tshwj xeeb.
Q: Dab tsi yog qhov annealing kub rau ASTM A269 TP316L?
A: Qhov kub thiab txias rau TP316L yog 1900-2050℃F (1040-1120 degree) ua raws li cov cua txias ceev kom tswj tau qhov corrosion.
Q: Dab tsi yog qhov tensile zog ntawm API 5L X80?
A: API 5L X80 muaj qhov tsawg kawg nkaus lub zog ntawm 80,000 psi (551 MPa) thiab tensile zog ntawm 90,000-120,000 psi (621-827 MPa).
Q: Yuav ua li cas ASTM A335 P9 siv nyob rau hauv daim ntawv thov refinery?
A: P9 (9% chromium) yog siv nyob rau hauv refinery furnaces thiab piping rau siab - kev pab kub txog li 1200℃F (649 degree), xws li nyob rau hauv catalytic cracking units.
Q: Dab tsi yog cov qauv sib npaug rau API 5L X70?
A: Cov pa roj carbon sib npaug (CE) feem ntau suav nrog cov qauv IIW: CE=C + Mn / 6 + (Cr + Mo + V) / 5 + (Ni + Cu) / 15, nrog kev txwv ib ncig ntawm 0.43% rau weldability.
