Lembani 347 (UNS S34700) mu chubu chophimbidwa
Kufotokozera
347 zitsulo zosapanga dzimbiri zophimbidwa ndi machubu
Type 347 ndi niobium stabilized chromium nickel austenitic chitsulo chosapanga dzimbiri chokhala ndi dzimbiri kukana 304/304L.Gululi limagwiritsidwa ntchito mu 800-1500˚F kutentha komwe kumakhazikika motsutsana ndi mvula ya chromium carbide powonjezera niobium, zomwe zimabweretsa mvula ya niobium carbides.Mtundu wa 347 umakhala ndi kukana kwa dzimbiri kwapakati pa granular ukakumana ndi kutentha uku, ndipo kalasi iyi imakana oxidation mpaka 1500˚F ndipo imakhala ndi zokwawa komanso zophulika kwambiri kuposa 304/304L.Ilinso ndi kulimba kwa kutentha kotsika komanso simaginito mumtundu wa annealed.
347 zitsulo zosapanga dzimbiri zophimbidwa ndi machubu
Chemical Composition
Malire a Chemical Composition (wt%) monga afotokozedwera mu ASTM A240 ndi ASME SA240*.
| Chinthu | 347 |
| Mpweya | 0.08 |
| Chromium | 17.0-19.0 |
| Nickel | 9.0-13.0 |
| Manganese | 2.00 |
| Silikoni | 0.75 |
| Phosphorous | 0.045 |
| Sulfure | 0.030 |
| Niobium | 10 x C mphindi / 1.00 max |
Mechanical Properties347 zitsulo zosapanga dzimbiri zophimbidwa ndi machubu
Zofunikira zamakina pamakina otsekedwa monga zafotokozedwera mu ASTM A240 ndi ASME SA240.
| Katundu | 347 |
| Zokolola Zamphamvu, min.(k) | 30 |
| Mphamvu Zolimba, min.(k) | 75 |
| Elongation, min.(%) | 40 |
| Kuuma, max.(Rb) | 92 |
Zakuthupi
Zakuthupi za Type 347 zitsulo zosapanga dzimbiri
| Katundu | 347 Zambiri |
| Kachulukidwe, lb/in3 | 0.288 |
| Modulus of Elasticity, psi | 28.0 x 106 |
| Coefficient of Thermal Expansion, 68-212˚F, /˚F | 9.3 x 10-6 |
| Thermal Conductivity, Btu/ft hr ˚F | 9.2 |
| Kutentha Kwapadera, Btu/lb ˚F | 0.12 |
| Kukana kwamagetsi, Microohm-in | 28.4 |
Miyezo
Miyezo yodziwika bwino ya zitsulo zosapanga dzimbiri 347
| 347 |
| ASTM A240 |
| Chithunzi cha ASME SA240 |
| Mtengo wa AMS5512 |
Nthawi yotumiza: Apr-22-2023