430 Engagqwali

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
(mm/m/°C)

Conductivity ezishisayo
(W/m.K)

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