440c osapanga dzimbirindi chinthu chosapanga dzimbiri chosapanga dzimbiri chomwe chimadziwika kuti ndi kuphatikiza kwake kwa kuvala ndi kukana kuwonongeka. Ndi wa banja la martienetic osapanga dzimbiri ndipo limagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana chifukwa chochita bwino kwambiri.
Muyezo wa 440c dziwe lopanda kapangidwe kake ndi ma grade ofanana
| Dziko | USA | BS & DIN | Jachin |
| Wofanana | ASTM A276 | En 10088 | Jis G4303 |
| Maphunziro | S44004 / 440C | X105cMo17 / 1.4125 | Sus440C |
ASME A276 440C Steel Checrocy Coursomssion ndi equivale
| Wofanana | Giledi | C | Mn | P | S | Si | Cr | Mo |
| ASTM A276 | S44004 / 440C | 0.95-1.20 | ≦ 1.00 | ≦ 0.04 | ≦ 0.03 | ≦ 1.00 | 16.0-18.0 | ≦ 0.75 |
| En10088 | X105cMo17 / 1.4125 | 0.95-1.20 | ≦ 1.00 | ≦ 0.04 | ≦ 0.03 | ≦ 1.00 | 16.0-18.0 | 0.40-0.80 |
| Jis G4303 | SUS 440C | 0.95-1.20 | ≦ 1.00 | ≦ 0.04 | ≦ 0.03 | ≦ 1.00 | 16.0-18.0 | ≦ 0.75 |
440c osapanga dzimbiriZazitsuloKatundu
| Kutentha kutentha (° C) | Mphamvu ya kukhala (MPA) | Gwiritsani ntchito mphamvu 0.2% (MPA) | Elongition (% mu 50mm) | Kulimbana Kwambiri (HRC) | Kukhudza Charpy v (j) |
| Oyeretsedwa * | 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 |
Nazi mfundo zazikuluzikulu zoyambitsa ma 440c osapanga dzimbiri:
1. Kuphatikizika: 440C kusakhazikika kwachitsulo kumakhala kokhazikika kwa chromium (16-18%), kaboni (0.95-1.95-1.95-1.20%), Sicon, ndi Molybdenum.
2. Kuvala kukana: 440c osapanga dzimbiri osapanga chitsulo amadziwika kuti ndi ovala bwino kwambiri, ndikupangitsa kuti ikhale yoyenera pakugwiritsa ntchito zida zokhudzana ndi zidole, zida zodulira, ndi zida zosagwira ntchito.
3.
4. Kuumitsa ndi Mphamvu: 440c osapanga dzimbiri patali ndi kulimba kwambiri komanso mphamvu yayikulu, kupereka zifukwa zokwanira komanso moyo wautali pakufunika kugwiritsa ntchito.
Post Nthawi: Jul-05-2023