Andika 347 (UNS S34700) muri tubing
Ibisobanuro
347 ibyuma bidafite ingese
Ubwoko 347 ni niobium itunganijwe ya chromium nikel austenitis ibyuma bitagira umuyonga hamwe no kurwanya ruswa isa na 304 / 304L.Uru rwego rusanzwe rukoreshwa mubipimo by'ubushyuhe bwa 800-1500˚F aho bihagaze neza kugirango hagabanuke imvura ya chromium karbide hiyongereyeho niobium, bivamo kugwa kwa karubide ya niobium.Ubwoko bwa 347 bufite uburyo bwiza bwo kurwanya ruswa nyuma yo guhura nubushyuhe, kandi iki cyiciro kirwanya okiside igera kuri 1500˚F kandi ifite imitambiko myinshi hamwe no guturika kurenza 304 / 304L.Ifite kandi ubushyuhe buke bwo hasi kandi ntabwo ari magnetique muburyo bwa annealed.
347 ibyuma bidafite ingese
Ibigize imiti
Ibigize imiti (wt%) imipaka nkuko bigaragara muri ASTM A240 na ASME SA240 *.
| Ikintu | 347 |
| Carbone | 0.08 |
| Chromium | 17.0-19.0 |
| Nickel | 9.0-13.0 |
| Manganese | 2.00 |
| Silicon | 0.75 |
| Fosifore | 0.045 |
| Amazi | 0.030 |
| Niobium | 10 x C min / 1.00 max |
Ibikoresho bya mashini347 ibyuma bidafite ingese
Ibikoresho bya mashini bisabwa kubicuruzwa bifatanye nkuko bigaragara muri ASTM A240 na ASME SA240.
| Umutungo | 347 |
| Imbaraga Zitanga, min.(ksi) | 30 |
| Imbaraga zingana, min.(ksi) | 75 |
| Kurambura, min.(%) | 40 |
| Gukomera, max.(Rb) | 92 |
Ibintu bifatika
Imiterere yumubiri wubwoko 347 ibyuma bitagira umwanda
| Umutungo | 347 Amakuru |
| Ubucucike, lb / in3 | 0.288 |
| Modulus ya Elastique, psi | 28.0 x 106 |
| Coefficient yo Kwagura Ubushyuhe, 68-212˚F, / ˚F | 9.3 x 10-6 |
| Amashanyarazi, Btu / ft hr ˚F | 9.2 |
| Ubushyuhe bwihariye, Btu / lb ˚F | 0.12 |
| Kurwanya amashanyarazi, Microohm-in | 28.4 |
Ibipimo
Ibipimo bisanzwe byubwoko 347 ibyuma bitagira umwanda
| 347 |
| ASTM A240 |
| ASME SA240 |
| AMS 5512 |
Igihe cyo kohereza: Apr-22-2023