Uhlobo lwe-347 (UNS S34700) kwi-Coiled tubing
Inkcazo
347 intsimbi engatyiwayo ebhijelwe ityhubhu
Uhlobo lwe-347 yi-niobium ezinzile i-chromium nickel i-austenitic insimbi engenasici kunye nokumelana nokubola okufana ne-304 / 304L.Eli bakala liqhele ukusetyenziswa kuluhlu lobushushu be-800-1500˚F apho lizinziswa ngokuchasene nemvula ye-chromium carbide ngokongezwa kwe-niobium, ekhokelela kwimvula ye-niobium carbides.Uhlobo lwama-347 lunokumelana nokukhula okugqwesileyo kwe-intergranular emva kokuvezwa kolu luhlu lobushushu, kwaye eli nqanaba lixhathisa i-oxidation ukuya kuthi ga kwi-1500˚F kwaye lineempawu eziphezulu zokurhubuluza kunye noxinzelelo lokukrazula kune-304/304L.Ikwanayo nokuqina okuhle kobushushu obuphantsi kwaye ayinamagnetic kwimeko efakwe kwi-annealed.
347 intsimbi engatyiwayo ebhijelwe ityhubhu
Ukuqulunqwa kwemichiza
Ubume beMichiza (wt%) imida njengoko kuchaziwe kwi-ASTM A240 kunye ne-ASME SA240*.
| Isiqalelo | 347 |
| Ikhabhoni | 0.08 |
| Chromium | 17.0-19.0 |
| Nickel | 9.0-13.0 |
| IManganese | 2.00 |
| Isilicon | 0.75 |
| Iphosphorus | 0.045 |
| Isulfure | 0.030 |
| Niobium | 10 x C min / 1.00 max |
Iipropati zoomatshini347 intsimbi engatyiwayo ebhijelwe ityhubhu
Iimfuno zepropathi yoomatshini kwimveliso efakwe emanzini njengoko kuchaziwe kwi-ASTM A240 kunye ne-ASME SA240.
| Ipropati | 347 |
| Isivuno Amandla, imiz.(ksi) | 30 |
| Amandla okuqina, min.(ksi) | 75 |
| Ukwandisa, min.(%) | 40 |
| Ubunzima, max.(Rb) | 92 |
Iipropati Zomzimba
Iimpawu ezibonakalayo zohlobo lwe-347 yensimbi engenasici
| Ipropati | 347 Idatha |
| Ubuninzi, lb/in3 | 0.288 |
| Imodyuli yeElasticity, psi | 28.0 x 106 |
| I-Coefficient yoKwandiswa kweThermal, 68-212˚F, /˚F | 9.3 x 10-6 |
| I-Thermal Conductivity, Btu/ft hr ˚F | 9.2 |
| Ubushushu obuthile, Btu/lb ˚F | 0.12 |
| Ukuxhathisa koMbane, i-Microohm-in | 28.4 |
Imigangatho
Imigangatho eqhelekileyo yodidi lwe-347 yensimbi engenasici
| 347 |
| I-ASTM A240 |
| ASME SA240 |
| I-AMS 5512 |
Ixesha lokuposa: Apr-22-2023