Cov hlau tsis xeb uas tiv taus cua sov feem ntau muab faib ua peb hom, 309S, 310S thiab 253MA. Cov hlau tsis xeb uas tiv taus cua sov feem ntau siv rau hauv kev tsim cov boilers, cov turbines ua pa, cov cub tawg thiab cov chaw ua haujlwm kub siab hauv kev lag luam aviation, petrochemical thiab lwm yam kev lag luam.
1.309s: (OCr23Ni13) stainless hlau phaj
Cov yam ntxwv: Nws tuaj yeem tiv taus cua sov rov qab dua hauv qab 980 ℃, nrog lub zog kub siab, tiv taus oxidation thiab carburizing tsis kam.
Daim Ntawv Thov: cov khoom siv rau lub cub tawg, tuaj yeem siv los tsim cov khoom siv hlau kub, Nws cov chromium thiab nickel siab ua kom muaj kev tiv thaiv corrosion zoo thiab tiv thaiv oxidation.
Piv nrog austenitic 304 alloy, nws muaj zog me ntsis ntawm chav tsev kub. Hauv lub neej tiag tiag, nws tuaj yeem rov ua kom sov dua ntawm 980 ° C kom tswj tau kev ua haujlwm ib txwm.310s: (0Cr25Ni20) stainless hlau phaj.
2.310s: (OCr25Ni20) stainless hlau phaj
Cov yam ntxwv: Cov hlau tsis xeb chromium-nickel austenitic siab nrog cov khoom siv kub zoo thiab tiv taus corrosion hauv oxidizing media. Haum rau kev tsim ntau yam khoom siv cua sov, qhov kub siab tshaj plaws 1200 ℃, siv tas mus li 1150 ℃.
Daim Ntawv Thov: cov khoom siv rauv taws, cov khoom siv ntxuav tsheb.
310S stainless hlau yog ib hom hlau austenitic stainless hlau uas tiv taus xeb heev uas siv rau hauv ntau qhov chaw kub thiab corrosive. Nws yog ib qho kev xaiv zoo heev rau kev siv hauv kev lag luam petrochemical, tshuaj lom neeg, thiab kev kho cua sov, nrog rau cov khoom siv hauv qhov cub thiab lwm yam kev siv kub. Ib daim hlau stainless hlau 310S yog ib daim ntawv tiaj tus, nyias ua los ntawm cov hlau tshwj xeeb no.
3.253MA (S30815) stainless hlau phaj
Cov yam ntxwv: 253MA yog cov hlau Austenitic uas tiv taus cua sov uas tsim los rau cov ntawv thov uas xav tau lub zog nkag siab thiab tiv taus corrosion zoo. Nws qhov kub ua haujlwm yog 850-1100 ℃.
253MA yog ib hom hlau tsis xeb tshwj xeeb uas tsim los rau kev siv kub siab. Nws muaj kev tiv taus zoo heev rau oxidation, sulfidation, thiab carburization ntawm qhov kub siab. Qhov no ua rau nws tsim nyog siv rau hauv ntau yam lag luam, suav nrog cov uas muaj cua sov thiab xeb, xws li petrochemical, hluav taws xob tsim, thiab cov chaw ua kom sov.Cov ntawv 253MA yog cov khoom nyias nyias, tiaj tus uas ua los ntawm cov hlau no. Lawv siv rau hauv ntau yam kev siv uas qhov kev sib xyaw ua ke ntawm kev tiv taus kub thiab kev tiv taus corrosion yog qhov tseem ceeb. Cov ntawv tuaj yeem txiav thiab tsim ua ntau yam duab kom tau raws li qhov xav tau tshwj xeeb ntawm ib qhov project.
253MA Cov Ntawv, Cov Phaj Tshuaj Lom Zem
| Qib | C | Cr | Mn | Si | P | S | N | Ce | Fe | Ni |
| 253MA | 0.05 – 0.10 | 20.0-22.0 | 0.80 siab tshaj | 1.40-2.00 | 0.040 siab tshaj plaws | 0.030 siab tshaj plaws | 0.14-0.20 | 0.03-0.08 | Qhov Nyiaj Tshuav | 10.0-12.0 |
253MA Phaj Mechanical zog
| Lub zog tensile | Lub Zog Tawm (0.2% Offset) | Kev ntev (hauv 2 nti.) |
| Psi: 87,000 | Psi 45000 | 40% |
253MA Phaj Corrosion tsis kam thiab siv ib puag ncig tseem ceeb:
1. Kev Tiv Thaiv Kev Xeb: 253MA muaj kev tiv thaiv oxidation zoo heev, tiv thaiv kev xeb kub siab, thiab muaj zog kho tshuab zoo heev. Nws muaj txiaj ntsig zoo hauv qhov kub ntawm 850 txog 1100 ° C.
2. Qhov Kub thiab Txias: Rau kev ua tau zoo tshaj plaws, 253MA zoo tshaj plaws rau kev siv hauv qhov kub thiab txias ntawm 850 txog 1100 ° C. Thaum kub ntawm 600 thiab 850 ° C, kev hloov pauv ntawm cov qauv tshwm sim, ua rau muaj kev cuam tshuam tsawg dua ntawm qhov kub thiab txias hauv chav.
3. Lub Zog Kho Tshuab: Cov hlau no zoo dua li cov hlau tsis xeb ib txwm muaj, xws li 304 thiab 310S, hais txog lub zog tensile luv luv ntawm ntau qhov kub thiab txias los ntawm ntau tshaj 20%.
4. Cov Tshuaj Lom Zem: 253MA muaj cov tshuaj lom neeg sib npaug uas ua rau nws muaj kev ua tau zoo hauv qhov kub ntawm 850-1100 ° C. Nws ua rau muaj kev tiv thaiv oxidation siab heev, tiv taus qhov kub txog li 1150 ° C. Nws kuj tseem muaj kev tiv thaiv nkag thiab lub zog tawg.
5. Kev Tiv Thaiv Kev Kub Ntxhov: Ntxiv rau nws cov peev xwm kub siab, 253MA qhia tau zoo heev rau kev tiv thaiv kev kub ntxhov siab thiab txhuam kev kub ntxhov hauv feem ntau cov chaw muaj roj.
6. Lub zog: Nws muaj lub zog siab thiab lub zog tensile ntawm qhov kub siab.
7. Kev Ua Tau Zoo thiab Kev Sib Txuas Lus: 253MA paub txog nws qhov kev ua tau zoo, kev sib txuas lus, thiab kev siv tshuab.
Lub sijhawm tshaj tawm: Lub Kaum Hli-09-2023