440cc oo bir bir ah oo bir ahwaa badeecad bir ah oo tayo leh oo tayo leh oo caan ah oo loo yaqaan isku-darka aan caadiga ahayn ee caabbinta caabbinta iyo iska caabinta xamuulka. Waxay ka timaadaa qoyska birta ee aan caadiga ahayn ee loo yaqaan 'marsititic' waxaana si weyn loogu isticmaalaa warshado kala duwan oo loogu talagalay bandhigiisa ugu sareeya.
Heerka 440c steel bir ah iyo dhibco bir ah oo u dhigma
| Baaddiye | USA | Bs & din | Japan |
| Caadi ah | ASTM A276 | En 10088 | JIS G4303 |
| Dhibcaha | S44004 / 440C | X105cremo17 / 1.4125 | Sus440c |
ASTM A276 440c Istal kiimiko iyo u dhigma
| Caadi ah | Heer u qaybin | C | Mn | P | S | Si | Cr | Mo |
| ASTM A276 | S44004 / 440C | 0.95-1.2020 | ≦ 1.00 | ≦ 0.04 | ≦ 0.03 | ≦ 1.00 | 16.0-18.0 | ≦ 0.75 |
| En10088 | X105cremo17 / 1.4125 | 0.95-1.2020 | ≦ 1.00 | ≦ 0.04 | ≦ 0.03 | ≦ 1.00 | 16.0-18.0 | 0.40-0.80 |
| JIS G4303 | Sus 440c | 0.95-1.2020 | ≦ 1.00 | ≦ 0.04 | ≦ 0.03 | ≦ 1.00 | 16.0-18.0 | ≦ 0.75 |
440c steel bir ahMashiin ahGuryaha
| Heerkulka qaboobaha (° C) | Xoog TSensile (MPA) | Soo saar xoogga 0.2% caddeyn (MPA) | Codadka (% 50mm) | CARRUURTA CUSUBKA (HRC) | Saamaynta Charpy v (j) |
| La qariyey * | 758 | 448 | 14 | 269hb max # | - |
| 204 | 2030 | 1900 | 4 | 59 | 9 |
| 260 | 1960 | 1830 | 4 | 57 | 9 |
| 306 | 1860 | 1740 | 4 | 56 | 9 |
| 371 | 1790 | 1660 | 4 | 56 | 9 |
Halkan waxaa ah qodobo muhiim ah oo muhiim u ah in lagu soo bandhigo 440cc oo bir bir ah oo bir ah:
1. Qaab-dhismeedka: 440C oo ah baarka fidsan ee birta ah ee birta ah ayaa ugu horreyn ka kooban chromium (16-18%), kaarboon (0.95-1.20%), iyo tiro yar oo xubno kale ah sida manganese, silikon, iyo molybon, iyo molybon, iyo molybon.
2. Xiro iska caabbinta
3. Iska caabbinta qaddarka
4. Adkeyn iyo xoog: 440c oo bir ah oo bir ah oo bir ah oo aad u fiican iyo xoog sare, oo siiya cimri dherer iyo cimri dheer oo dalbanaya codsiyada dalbashada.
Waqtiga Post: Jul-05-2023