Q: Raws liGB/T 14976, Dab tsi yog qhov yuav tsum tau muaj tshuaj lom neeg rau cov khoom siv austenitic stainless hlau zoo li 0Cr18Ni9 (304)?
A:Lawv yuav tsum muaj qhov tsawg kawg nkaus chromium (Cr) cov ntsiab lus ntawm16%thiab nickel (Ni) cov ntsiab lus ntawm10%los xyuas kom meej corrosion kuj-3.
Q: Dab tsi yog qhov sib npaug ASTM qib rau Suav stainless qib0c18n 9, 0Cr17Ni12Mo2, thiab0Cr18Ni10 Ti?
A:Lawv sib npaug rauASTM A312 TP 304 Cov Lus Qhia Tshwj Xeeb, TIAB SA 316, thiabTIAB SA 321, ib-9.
Q: Qhov kev ntsuam xyuas tshwj xeeb yog qhov tseem ceeb rau cov kav hlau stainless hauvGB/T 14976los soj ntsuam susceptibility rau intergranular corrosion?
A: Intergranular corrosion xeem(xws li Huey test hauv nitric acid lossis tooj liab sulfate test) yuav tsum tau ua kom muaj kev tiv thaiv rau daim ntawv no ntawm corrosion-3.
Q: Dab tsi yog qhov "L" cov lus qhia hauv cov qib stainless hlau zoo li00Cr19Ni10 (304L) cov khoom?
A:Lub "L" sawv cev rau "Low carbon." Nws qhia tau hais tias cov ntsiab lus siab tshaj carbon feem ntau qis dua 0.03%, uas txhim khu kev tiv thaiv rau intergranular corrosion tom qab vuam-9.
Q: Dab tsi yog qhov Scope ntawmASTM A268 / A268M ASTM, thiab dab tsi yog qhov tseem ceeb ntawm cov hlau no?
A:Nws npog ferritic thiab martensitic stainless hlau tubing rau kev pabcuam dav dav. Ib tug yam ntxwv tseem ceeb yog tias feem ntau yogferromagnetic(magnetic), tsis zoo li austenitic qib-7.
