Thaum xaiv cov khoom siv hlau tsis xeb, 3Cr12 thiab 410S yog ob txoj kev xaiv uas siv ntau. Txawm hais tias ob qho tib si yog hlau tsis xeb, lawv muaj qhov sib txawv tseem ceeb hauv cov tshuaj lom neeg sib xyaw, kev ua tau zoo, thiab thaj chaw siv. Tsab xov xwm no yuav tshawb nrhiav qhov sib txawv tseem ceeb ntawm ob lub phaj hlau tsis xeb no thiab lawv cov ntawv thov, pab koj txiav txim siab zoo rau koj cov haujlwm.
3Cr12 stainless hlau yog dab tsi?
3Cr12 stainless hlau ntawvyog ib hom hlau ferritic stainless hlau uas muaj 12% Cr, uas sib npaug rau European 1.4003 qib. Nws yog ib hom hlau ferritic stainless hlau pheej yig siv los hloov cov hlau carbon coated, cov hlau weathering thiab txhuas. Nws muaj cov yam ntxwv ntawm kev ua thiab kev tsim khoom yooj yim, thiab tuaj yeem vuam los ntawm cov txheej txheem vuam ib txwm muaj. Nws tuaj yeem siv los ua: cov thav duab tsheb, chassis, hoppers, conveyor siv, mesh screens, conveying troughs, thee bins, thawv thiab tanks, chimneys, cua ducts, thiab cover sab nraud, Panels, sidewalks, stairs, rails, thiab lwm yam.
410S stainless hlau yog dab tsi?
410S stainless hlauyog qhov hloov kho qis-carbon, tsis-hardening ntawm martensitic stainless hlau 410. Nws muaj li ntawm 11.5-13.5% chromium thiab me me ntawm lwm yam ntsiab lus xws li manganese, phosphorus, sulfur, silicon, thiab qee zaum nickel. Cov ntsiab lus carbon qis dua ntawm 410S txhim kho nws qhov weldability thiab txo qhov kev pheej hmoo ntawm hardening lossis tawg thaum lub sijhawm vuam. Txawm li cas los xij, qhov no kuj txhais tau tias 410S muaj zog qis dua piv rau tus qauv 410. Muaj kev tiv thaiv corrosion zoo, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig tsis muaj zog, tab sis tsis tshua muaj zog dua li austenitic stainless hlau zoo li 304 lossis 316.
Ⅰ.3Cr12 thiab 410S Cov Tshuaj Lom Zem ntawm Cov Hlau Phaj
Raws li ASTM A240.
| Qib | Ni | C | Mn | P | S | Si | Cr |
| 3Cr12 | 0.3-1.0 | 0.03 | 2.0 | 0.04 | 0.030 | 1.0 | 10.5-12.5 |
| 3Cr12L | 0.3-1.0 | 0.03 | 1.5 | 0.04 | 0.015 | 1.0 | 10.5-12.5 |
| 410S | 0.75 | 0.15 | 1.0 | 0.04 | 0.015 | 1.0 | 11.5-13.5 |
Ⅱ.3Cr12 thiab 410S Cov Khoom Phaj Hlau
3Cr12 Cov Hlau Stainless: Qhia tau tias muaj zog thiab weldability zoo, haum rau ntau txoj kev ua. Muaj lub zog nruab nrab thiab hnav tsis kam, ua rau nws muaj peev xwm tiv taus qee yam kev ntxhov siab.
410S Cov Hlau Tsis Xeb:Nws muaj qhov nyuaj dua, ua rau nws tsim nyog rau kev siv kub siab, tab sis nws tsis muaj peev xwm vuam tau zoo. Nws lub zog thiab kev tiv thaiv cua sov ua rau nws zoo tshaj plaws hauv cov xwm txheej kub siab.
| Qib | Rm (MPa) | Qhov Siab Tshaj Plaws (BHN) | Kev ntev |
| 3Cr12 | 460 | 220 | 18% |
| 3Cr12L | 455 | 223 | 20% |
| 410S | 415 | 183 | 20% |
Cov Cheeb Tsam Siv Rau Phaj Hlau Ⅲ.3Cr12 Thiab 410S
3Cr12Siv dav hauv cov khoom siv tshuaj lom neeg, cov khoom siv ua zaub mov, thiab cov ntaub ntawv tsim kho. Nws txoj kev tiv thaiv corrosion zoo ua rau nws zoo tagnrho rau cov chaw noo thiab acidic.
410SFeem ntau siv rau hauv cov khoom siv turbine, boilers, thiab cov khoom hloov pauv cua sov hauv qhov chaw kub siab. Haum rau cov ntawv thov uas xav tau cua sov thiab tiv taus kev hnav.
Ⅳ. Kev Sib Piv Lus
Cov yam ntxwv tseem ceeb ntawm 3Cr12:
• Cov khoom xyaw: Cov ntsiab lus Chromium ntawm 11.0–12.0%, cov ntsiab lus carbon ≤ 0.03%.
• Kev Tiv Thaiv Kev Xeb: Haum rau cov chaw muaj kev xeb me ntsis, xws li cov khoom siv hauv tsev, cov khoom siv hauv kev khawb av, thiab cov ntawv thov hauv kev lag luam dav dav.
• Kev vuam tau zoo: Kev vuam zoo vim nws cov pa roj carbon tsawg.
| Tus Qauv | Qib |
| Tus Qauv Tebchaws Africa Qab Teb | 3Cr12 |
| Tus Qauv European | 1.4003 |
| Tus Qauv Tebchaws Meskas | UNS S41003 (410S) |
| Tus Txheej Txheem Thoob Ntiaj Teb | X2CrNi12 |
• 410S: Qhov nyuaj dua tab sis qhov tawv qis dua me ntsis, tsis muaj titanium, muaj qhov weldability nruab nrab, thiab tsim nyog rau cov ntawv thov tiv taus corrosion dav dav.
• 3Cr12: Cov pa roj carbon tsawg, pheej yig, tsim nyog rau cov chaw muaj xeb me ntsis, nrog rau kev vuam zoo.
Lub sijhawm tshaj tawm: Lub Kaum Hli-24-2024