Yerekezerani ndi 15CrMo ndi 1Cr5Mo
| 15CrMo | 1Cr5Mo | |||
| Mtundu: | Structural Alloy Steel | Kutentha Kwambiri kwa Hydrogen Resistant Steel | ||
| Chemical Component: | C | 0.12---0.180 | C | ≤0.15 |
| Si | 0.17-0.37 | Si | ≤0.5 | |
| Mn | 0.4-0.7 | Mn | ≤0.6 | |
| Cr | 0.8---1.10 | Cr | 4.0--6.0 | |
| Mo | 0.4--0.550 | Mo | 0.4--0.6 | |
| S&P | ≤0.035 | Ni | ≤0.6 | |
| S | ≤0.03 | |||
| Katundu wamakina: | Kuthamanga Kwambiri (Mpa): | 440-640 | Kuthamanga Kwambiri (Mpa): | 390 |
| Yield Point (Mpa) | 235 | Yield Point (Mpa) | 185 | |
| Elongation (%) | 21 | Elongation (%) | 22 | |
| kutentha mankhwala kutentha: | 690 ℃ | 750 ℃ | ||
| Kutentha kovomerezeka: | 15CrMo＜1Cr5Mo | |||
| Kupsinjika Kololeka: | 15CrMo＞1Cr5Mo | |||
| Micro kapangidwe: | Pearlite (kulimba kwabwino, kuuma pang'ono) | Martensite (yolimba komanso yolimba) | ||
| Standard: | GB/T11251 | Mtengo wa SA387 | ||
| Khalidwe: | Lili ndi mphamvu zotentha kwambiri (δb≥440MPa) ndi kukana kwa okosijeni pa kutentha kwakukulu, ndipo zimakhala ndi kukana kwa hydrogen corrosion. The coefficient of matenthedwe kukulitsa ndi yaing'ono, madutsidwe matenthedwe ndi mkulu, ndondomeko ntchito bwino, kutentha ndi 450-620 madigiri Celsius, kuumitsa chizolowezi zitsulo n'zoonekeratu, ndipo weldability ndi osauka. Amagwiritsidwa ntchito kwambiri popanga makina opangira nthunzi ndi ma boilers, ndipo amagwiritsidwa ntchito kwambiri pamachubu osinthanitsa ndi kutentha kwambiri komanso zotengera zothamanga kwambiri. | Ili ndi kukana kwa okosijeni kwabwino kozungulira madigiri 650 Celsius, mphamvu yabwino yotenthetsera pansi pa 600, mayamwidwe abwino owopsa komanso matenthedwe amafuta, ndipo imagwiritsidwa ntchito kwambiri pama turbines a nthunzi. Komabe, chitsulo chamtunduwu chimakhala ndi chizolowezi chachikulu choumitsa komanso chimakhala ndi ntchito yowotcherera. Ili ndi makina abwino otenthetsera kutentha, kukhazikika kwa microstructure, kukana kwa dzimbiri, komanso kulimba kwabwino. Amagwiritsidwa ntchito kwambiri mu petrochemical, kutembenuka kwa malasha, mphamvu ya nyukiliya, turbine block ya nthunzi, boiler yamagetsi otenthetsera ndi zina zovuta zogwirira ntchito, chilengedwe chowononga media. | ||
| Ntchito: | Mafuta a petroleum, petrochemical, boilers high-pressure, ndi mapaipi ena apadera opanda msoko amaphatikizapo mapaipi a boiler opanda msokonezo, mapaipi achitsulo osasunthika a geological, ndi mapaipi opanda msoko. Mipope ndi forgings angagwiritsidwe ntchito pa zotengera zokakamiza. Mapaipi a nthunzi ndi mitu yokhala ndi kutentha kwa khoma ≤510 ℃; Kutentha pamwamba chubu ndi khoma kutentha ≤540 ℃. | Kutentha kwambiri kwa sulfure dzimbiri, kutentha kwambiri kwa hydrogen ndi hydrogen sulfide corrosion, organic acid corrosion. Reheater chubu ndi khoma kutentha kwa 630 ℃ -650 ℃. Mipope ndi forgings angagwiritsidwe ntchito pa zotengera zokakamiza. Kutentha kwambiri kwa sulfure dzimbiri, kutentha kwambiri kwa hydrogen ndi hydrogen sulfide corrosion, organic acid corrosion. Reheater chubu ndi khoma kutentha kwa 630 ℃ -650 ℃. | ||
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