Izakhiwo Jikelele
Ibanga 430 kuyinto ferritic, chromium iqonde, ibanga-non-hardenable, esihlanganisa ezinhle ukugqwala ukumelana naso futhi kwenze formability izici nge izakhiwo ewusizo lokukhanda. Amandla aso simelane nitric acid livumela ukusetshenziswa yayo ethize izicelo amakhemikhali kodwa yezimoto ngombala futhi lisebenze izingxenye limelela nasemasimini alo elikhulu isicelo.
Ibanga 430F yinguqulo khulula-machining lokhu grade, etholakala ibha ifomu ukusetshenziswa imishini isikulufa othomathikhi. Ibanga 434 iyona molybdenum eziveza okufushane kwebanga 430 futhi has inhlanganisela efanayo ewusizo izakhiwo. molybdenum wayo kwalokho kuthuthukisa ukugqwala ukumelana.
Lezi Izakhiwo 430 kucacisiwe ukuze flat umkhiqizo iphuma (ipuleti, ishidi lekhoyili) e ASTM A240 / A240M. izakhiwo Okufanayo kodwa hhayi ngempela ezifanayo kucacisiwe ukuze eminye imikhiqizo efana Forgings kanye bar Ukucaciswa abafanele. Izakhiwo kwebanga 430F kucacisiwe ukuze bar ASTM A582.
izicelo
izicelo ejwayelekile 430 grade zihlanganisa:
1.Linings dish washers
2.Refrigerator iKhabhinethi panel
3.Automotive Ukunquma
4.Lashing Wire
5.Element Usekela
6.Stove ngombala izindandatho
7.Fasteners
8.Chimney liner
izicelo ejwayelekile 430F grade zihlanganisa:
1.Repetition ngomshini izingxenye
2.UNS: ASTM / Aste S43000
3.DIN: 1,4016
Imininingwane:
corrosion Ukumelana
Ibanga 430 enokumelana okuhle ezihlukahlukene enviornments ezonakalisayo, kuhlanganise nitric acid kanye namanye ama- asidi organic. It lithola esiphezulu ukugqwala ukumelana layo lapho isimo kakhulu ophucuziwe noma buffed. Ngokuvamile ukumelana layo ukuze pitting futhi crevice ukugqwala ukumelana iseduze ukuthi grade 304. Ukucindezeleka yokugqwala ukumelana kwebanga 430 kuphezulu kakhulu, njengoba kunjalo wonke amabanga ferritic.
Njengezinye ephezulu sulphur machining khulula amamaki 430F kuye kwanciphisa kakhulu ukumelana pitting futhi crevice ukugqwala kuqhathaniswa yayo okungezona khulula machining okulingana.
Heat Ukumelana
Ibanga 430 umelana namachibi enkonzweni ngezikhathi kuze kube 870 ° C futhi 815 ° C enkonzweni okuqhubekayo. Lokhu grade ingavuthi ziyaqothuka ekamelweni lokushisa emva Ukushisa isikhathi eside e-400-600 ° C ububanzi. Lo mphumela luqedwe ngu annealing.
Heat Ukwelashwa
1.Solution Annealing - Heat ukuba 815-845 ° C, bamba ½ ngehora 25mm of ukushuba, esithandweni kancane cool 600 ° C bese ngokushesha emoyeni obandayo. Ukupholisa Slow kusukela 540-400 ° C kuzokwenza embrittlement.
Anneal 2.Sub-ezibucayi - Heat ukuba 760-815 ° C bese emoyeni obandayo noma amanzi Ningamcimi.
3.This grade akuyona hardenable by ukwelashwa ezishisayo.
4.Pre-ukushisa at 150-200 ° C uma Welding kuyadingeka.
5.Embrittlement ku metal weld nokushisa abathintekayo zone kungenziwa gidi ngumuntu anneal post-weld at 790-815 ° C
6.Grain intuthuko ngeke kwenzeke.
7.Easier kumshini kuka indinganiso amamaki austenitic ezifana 304.
8.Still ukuthambekela ngoba galling futhi pick-up ithuluzi ahlabayo.
9.Bars eziye kancane ungenisa lula umshini kunalawo isimo annealed.
10.Grade 430F, le machining version mahhala 430, kakhulu kulula umshini.
11.Lower umsebenzi lukhuni izinga kwenza eguqa futhi obumba kancane kulula kuka selibanga 304
12.Lower ductility kuvimbela ukusebenza nzima kakhulu.
13.Severe egoba kufanele enziwe eksisi bend at engele kwesokudla esiqondisweni ugingqe.
14.Severe isihloko ezibandayo 430 wire kungenzeka.
zokushisela
machining
Fabrication
Ukwakheka
Ibanga |
C |
mn |
Si |
P |
S |
Kr |
mo |
Ni |
N |
|
430 |
imiz. max. |
- 0.12 |
- 1.00 |
- 1.00 |
- 0,040 |
- 0,030 |
16.0 18.0 |
- |
- 0.75 |
- |
430F |
imiz. max. |
- 0.12 |
- 1.25 |
- 1.00 |
- 0,06 |
0.15 - |
16.0 18.0 |
- |
- |
- |
Izakhiwo mechanical
Ibanga |
Amandla eqine (MPA) imiz |
Ukuhoxa Amandla 0.2% Ubufakazi (MPA) imiz |
Ukunwebeka (% ngo 50mm) imiz |
Ukuqina |
|
Rockwell B (HR B) max |
Brinell (HB) max |
||||
430 |
450 |
205 |
22 |
89 |
183 |
430F |
552 ejwayelekile |
379 ejwayelekile |
25 ejwayelekile |
- |
262 |
Izakhiwo Physical
Ibanga |
Ubuningi (kg / m 3 ) |
Modulus Nokunwebeka (GPA) |
Kusho Ukuthini-Coefficient Sokwanda Thermal |
Conductivity ezishisayo |
Specific Heat 0-100 ° C (J / kg.K) |
Resistivity kagesi (nW.m) |
|||
0-100 ° C |
0-315 ° C |
0-538 ° C |
at 100 ° C |
at 500 ° C |
|||||
430 |
7750 |
200 |
10.4 |
11.0 |
11.4 |
23,9 |
26.0 |
460 |
600 |
430F |
7750 |
200 |
10.4 |
11.0 |
11.4 |
26.1 |
26,3 |
460 |
600 |
Okungenzeka Alternative Amabanga
Ethebuleni ngezansi kukhona uhlu kungenzeka amamaki okunye kuya eBangeni leli-430.
Ibanga |
Isizathu kungase owakhethwa esikhundleni 430 |
430F |
machinability Ephakeme kuka-430 kuyadingeka emugqeni umkhiqizo, futhi yehlise ukugqwala ukumelana kwamukelekile. |
434 |
Kungcono pitting ukumelana liyadingeka |
304 |
Kancane ephakeme ukumelana ukugqwala kuyadingeka, kanye nekhono yathuthuka kakhulu ukuba ashiselwe amakhaza kwakhiwa |
316 |
ngcono kakhulu ukugqwala ukumelana kuyadingeka, kanye nekhono yathuthuka kakhulu ukuba ashiselwe amakhaza kwakhiwa |
3CR12 |
A aphansi ukugqwala ukumelana kuyamukeleka isicelo cost-ezibucayi |