1. Q: Dab tsi yog qhov tseem ceeb ntawm EN10297-2 X6Cr17 raj, thiab qhov twg lawv feem ntau siv?
A:
Lus txhais:Seamless precision raj hauv qabTS EN 10297-2, ua los ntawmX6Cr17(ib ferritic stainless hlau nrog 17% chromium).
Cov ntawv thov tseem ceeb:
Automotive:Exhaust systems, roj txhaj qhov chaw (resist sulfur corrosion).
Cov khoom siv hauv tsev:Lub tshuab ntxuav tais diav, qhov cub Cheebtsam (mob kub tsis kam).
Qhov zoo:
Tus nqi- zoolwm txoj rau qib austenitic (piv txwv li, 304) rau tsis yog - ib puag ncig hnyav.
Cov khoom sib nqus(muaj txiaj ntsig hauv kev siv sensors / hluav taws xob siv).
2. Q: Cov khoom siv dab tsi yuav tsum X6Cr17 cov raj raws li EN10297-2?
A:
Raws li -Delivered State:
Tensile zog:450-600 MPa.
Yield zog (Rp0.2):Ntau tshaj lossis sib npaug li 280 MPa.
Elongation (A₅):Ntau dua los yog sib npaug li 20% (kom paub tseeb tias formability).
Hardness:Tsawg dua lossis sib npaug li 250 HB.
Kev txwv:Tsawg toughness ntawm sub-zero kub vs. austenitic steels.
3. Q: Cov ntsiab lus chromium (Cr) cuam tshuam X6Cr17 li cas?
A:
Cr (16.0-18.0%):
Ua ib tug passiveCr₂O₃ txheejrau corrosion kuj nyob rau hauv cov huab cua me me.
Kev pauv - tawm:Kev txwv tsis pub muaj cov tshuaj chlorides (piv txwv li, ib puag ncig ntug hiav txwv).
Cov pa roj carbon tsawg (tsawg dua lossis sib npaug li 0.08%):Minimizes carbide nag lossis daus thaum vuam.
4. Q: Dab tsi yog cov tshuaj muaj pes tsawg leeg thiab impurity txwv?
A:
Alloy Design (wt.%):
Cr (16.0-18.0%):Kev tiv thaiv corrosion tseem ceeb.
C (tsawg dua lossis sib npaug rau 0.08%):Balances lub zog thiab weldability.
Si / Mn (tsawg dua lossis sib npaug rau 1.0% txhua):Cov tshuaj deoxidation.
Critical Control: P/S Tsawg dua lossis sib npaug li 0.040%kom tsis txhob brittleness.
5. Q: Cov ntawv pov thawj thiab cov ntawv pov thawj zoo li cas?
A:
Kev kuaj:
Corrosion Test:ASTM A763 Xyaum W (ferritic stainless hlau).
NDT:Eddy tam sim no (EN 10246-3) rau qhov tsis xws luag.
Cov ntawv pov thawj:
EN 10204 3.1nrog cov ntaub ntawv traceability.
RoHS/REACHua raws li cov khoom siv.
