Gabatarwa
Bakin ƙarfe ƙarfe ne mai yawan ƙarfe. Waɗannan ƙarfe suna samuwa a cikin rukuni huɗu waɗanda suka haɗa da ƙarfe martensitic, austenitic, ferritic da kuma ƙarfe mai tauri. Waɗannan ƙungiyoyin an kafa su ne bisa ga tsarin kristal na ƙarfe bakin ƙarfe.
Karfe mai bakin karfe yana dauke da sinadarin chromium mai yawa idan aka kwatanta da sauran karafa, don haka yana da juriyar tsatsa. Yawancin karafa masu bakin karfe suna dauke da kusan kashi 10% na sinadarin chromium.
Bakin karfe na Grade 2205 karfe ne mai siffar duplex wanda ƙirarsa ke ba da damar haɗa juriya ga ramuka, ƙarfi mai yawa, tsatsa mai ƙarfi, tsatsa mai kauri da tsagewa. Bakin karfe na Grade 2205 yana tsayayya da tsatsa mai ƙarfi ta sulfide da muhallin chloride.
Takardar bayanai mai zuwa tana ba da taƙaitaccen bayani game da ƙarfe mai nauyin 2205.
Sinadarin Sinadarai
An bayyana sinadaran da ke cikin ƙarfe mai bakin ƙarfe mai daraja 2205 a cikin tebur mai zuwa.
| Sinadarin | Abun ciki (%) |
| Iron, 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 |
| Silikon, Si | 1.0 |
| Nitrogen, N | 0.080-0.20 |
| Carbon, C | 0.030 |
| Phosphorus, P | 0.030 |
| Sulfur, S | 0.020 |
Sifofin Jiki
Teburin da ke ƙasa yana nuna halayen jiki na ƙarfe mai nauyin 2205.
| Kadarorin | Ma'auni | Sarki |
| Yawan yawa | 7.82 g/cm³ | 0.283 lb/in³ |
Kayayyakin Inji
An nuna halayen injiniya na ƙarfe mai daraja 2205 a cikin tebur mai zuwa.
| Kadarorin | Ma'auni | Sarki |
| Ƙarfin juriya a lokacin karyewa | 621 MPa | 90000 psi |
| Ƙarfin samarwa (@strain 0.200%) | 448 MPa | 65000 psi |
| Tsawaita lokacin hutu (a cikin 50 mm) | Kashi 25.0% | Kashi 25.0% |
| Taurin kai, Brinell | 293 | 293 |
| Tauri, Rockwell c | 31.0 | 31.0 |
Halayen Zafi
An bayar da halayen zafi na ƙarfe mai nauyin 2205 a cikin tebur mai zuwa.
| Kadarorin | Ma'auni | Sarki |
| Faɗaɗa zafi mai inganci (@20-100°C/68-212°F) | 13.7 µm/m°C | 7.60 µin/in°F |
Sauran Naɗi
Kayan da suka yi daidai da ƙarfe mai nauyin 2205 na bakin ƙarfe sune:
- ASTM A182 Sashe na F51
- ASTM A240
- ASTM A789
- ASTM A790
- DIN 1.4462
Gyara da Gyaran Zafi
Ƙararrawa
Ana shafa bakin karfe mai lamba 2205 a zafin 1020-1070°C (1868-1958°F) sannan a kashe ruwan.
Aiki Mai Zafi
Ana amfani da bakin karfe mai lamba 2205 a yanayin zafi na 954-1149°C (1750-2100°F). Ana ba da shawarar yin amfani da wannan bakin karfe mai lamba a yanayin zafi a ɗakin duk lokacin da zai yiwu.
Walda
Hanyoyin walda da aka ba da shawarar amfani da su don ƙarfe mai daraja 2205 sun haɗa da hanyoyin lantarki na SMAW, MIG, TIG da aka rufe da hannu. A lokacin aikin walda, ya kamata a sanyaya kayan ƙasa da digiri 149 (300°F) tsakanin wucewa da dumama kayan walda kafin lokacin. Ya kamata a yi amfani da ƙananan shigarwar zafi don walda mai daraja 2205.
Ƙirƙira
Bakin karfe mai daraja 2205 yana da wahalar samarwa saboda ƙarfinsa da kuma ƙarfinsa na aiki.
Ingancin aiki
Ana iya yin amfani da kayan aikin carbide ko na ƙarfe mai sauri na Grade 2205 ta hanyar amfani da bakin ƙarfe. Saurin yana raguwa da kusan kashi 20% idan aka yi amfani da kayan aikin carbide.
Aikace-aikace
Ana amfani da bakin karfe mai nauyin 2205 a cikin waɗannan aikace-aikacen:
- Matatun iskar gas
- Tankunan sinadarai
- Masu musayar zafi
- Abubuwan tace sinadarin acetic acid
