Q: ASTM A790 / A790M yog dab tsi?
A:Nws yog tus qauv specification npogseamless thiab ncaj-seam welded ferritic/austenitic stainless hlau kavrau cov kev pabcuam corrosive, nrog rau qhov tshwj xeebtiv thaiv kev ntxhov siab corrosion cracking-1-2.
Q: Qib S32750 yog dab tsi?
A:S32750 yog asuper duplex stainless hlauqib nrog cov ntsiab lus siab alloy. Nws yog lub npe hu rau nwssiab zog thiab zoo heev corrosion kuj, thiab nws poob raws li ASTM A790 tus qauv-4-10.
Q: Dab tsi ua rau S32750 muaj zog corrosion-resistant?
A:Nws cov ntsiab lus siab ntawmChromium (24-26%), Molybdenum (3-5%), thiab Nitrogen (0.24-0.32%)muab nws siabPitting Resistance Equivalent (PRE) tus lej siab dua 40, muab kev ua haujlwm zoo rau pitting, crevice, thiab dav corrosion-10.
Q: Nyob rau hauv dab tsi ib puag ncig yog S32750 yeeb nkab feem ntau siv?
A:Nws yog haum rau nruj ib puag ncig zoo liroj thiab roj, tshuaj ua haujlwm, offshore, tshuaj, thiab desalination nroj tsuagvim nws muaj peev xwm tiv taus chlorides thiab lwm yam corrosive media-4-9.
Q: Dab tsi yog cov khoom siv kho tshuab ntawm S32750 yeeb nkab?
A:Tom qab cov tshuaj annealing thiab quenching, nws feem ntau muaj atensile lub zog ntawm ntau dua los yog sib npaug rau 800 MPa, yield zog ntau dua los yog sib npaug rau 550 MPa, thiab elongation ntawm ntau dua los yog sib npaug rau 15%-10.
