Hordhac
Biraha birta ah waa bir daawaha sare leh.Birahaan waxaa loo heli karaa afar kooxood oo ay ku jiraan martensitic, austenitic, ferritic iyo biraha roobka adag.Kooxahani waxay ku salaysan yihiin qaab-dhismeedka crystalline ee birta aan lahayn.
Biraha birta ah waxay ka kooban yihiin xaddi badan oo chromium ah marka la barbar dhigo biraha kale sidaas darteed waxay leeyihiin iska caabin daxalka wanaagsan.Inta badan birta aan-daawaha lahayn waxay ka kooban tahay 10% chromium.
Fasalka 2205 birta daxalka ah waa bir laba-laab ah oo aan kala go 'lahayn kaas oo nashqaddiisu ay awood u siinayso isku darka caabbinta soo hagaagtay ee godadka, xoogga sare, daxalka walaaca, daxalka dillaaca iyo dildilaaca.Fasalka 2205 birta aan-ka-soo-baxa waxay u adkaysataa daxalka sulfide stress iyo bay'ada chloride.
Xaashidan xogeed ee soo socota waxa ay bixinaysaa dulmar guud ee darajada 2205 birta aan daahin.
Halabuurka Kiimikada
Halabuurka kiimikaad ee darajada 2205 birta aan lahayn ayaa lagu qeexay shaxdan soo socota.
| Curiyaha | Waxa ku jira (%) |
| Birta, Fe | 63.75-71.92 |
| Chromium, Cr | 21.0-23.0 |
| Nickel, Ni | 4.50-6.50 |
| Molybdenum, Mo | 2.50-3.50 |
| Manganese, Mn | 2.0 |
| Silikoon, Si | 1.0 |
| Nitrogen, N | 0.080-0.20 |
| Kaarboon, C | 0.030 |
| Fosfooraska, P | 0.030 |
| Sulfur, S | 0.020 |
Guryaha Jirka
Jadwalka soo socdaa waxa uu tusinayaa sifooyinka jidheed ee darajada 2205 birta aan lahayn.
| Guryaha | Metric | Imperial |
| Cufnaanta | 7.82 g/cm³ | 0.283 lb/in³ |
Guryaha Makaanikada
Tilmaamaha farsamada ee darajada 2205 birta aan daahin ayaa lagu muujiyay shaxda soo socota.
| Guryaha | Metric | Imperial |
| Xoog xajin marka nasashada | 621 MPa | 90000 psi |
| Awood soo saarid (@strain 0.200%) | 448 MPa | 65000 psi |
| Kordhinta xilliga nasashada (50 mm gudahood) | 25.0% | 25.0% |
| Adag, Brinell | 293 | 293 |
| Hardness, Rockwell c | 31.0 | 31.0 |
Guryaha kulaylka
Sifooyinka kulaylka ee darajada 2205 birta aan daahin ayaa lagu bixiyaa shaxda soo socota.
| Guryaha | Metric | Imperial |
| Iskaashatada balaarinta kulaylka (@20-100°C/68-212°F) | 13.7µm/m°C | 7.60 µin/in°F |
Magacyada Kale
Qalabka u dhigma darajada 2205 birta aan daahin waa:
- ASTM A182 Fasalka F51
- ASTM A240
- ASTM A789
- ASTM A790
- DIN 1.4462
Wax-soo-saarka iyo Daawaynta kulaylka
Annealing
Fasalka 2205 birta aan la karina waxa lagu tirtiraa 1020-1070°C (1868-1958°F) ka dibna biyo waa la demiyay.
Shaqo Kulul
Fasalka 2205 birta aan fiicnayn waa mid kulul oo laga shaqeeyay inta u dhaxaysa heerkulka 954-1149°C (1750-2100°F).Shaqada kulul ee darajadan birta aan lahayn ee heerkulka qolka ayaa lagula talinayaa mar kasta oo ay suurtagal tahay.
alxanka
Hababka alxanka ee lagu taliyay darajada 2205 birta aan daahin waxaa ka mid ah SMAW, MIG, TIG iyo hababka korantada daboolan ee gacanta.Inta lagu jiro habka alxanka, walxaha waa in lagu qaboojiyo meel ka hooseysa 149°C (300°F) inta u dhaxaysa baasaska iyo kulaylka hore ee gabalka alxanka waa in laga fogaadaa.Qalabka kulaylka hooseeya waa in loo isticmaalo alxanka darajada 2205 birta aan fiicnayn.
Samaynta
Fasalka 2205 birta aan fiicnayn waa adag tahay in la sameeyo sababtoo ah xooggeeda sare iyo heerka adkeynta shaqada.
Mashiinka
Fasalka 2205 birta aan lahayn waxaa lagu farsamayn karaa carbide ama qalabayn xawaare sare leh.Xawaaruhu waa la dhimay ilaa 20% marka la isticmaalayo qalabka carbide.
Codsiyada
Fasalka 2205 birta aan dahsoon waxaa loo isticmaalaa codsiyada soo socda:
- filtarrada gaaska hargabka
- Haamaha kiimikada
- Kuleylleyda
- Qaybaha kala-baxa aashitada