Sandar lebur mai faɗin bakin ƙarfe 440CSamfurin bakin karfe ne mai inganci wanda aka san shi da haɗinsa na musamman na juriyar lalacewa da juriyar tsatsa. Yana cikin dangin bakin karfe na martensitic kuma ana amfani da shi sosai a masana'antu daban-daban saboda kyakkyawan aikinsa.
Ma'aunin Karfe Mai Karfe Mai Daidaito na 440C
| Ƙasa | Amurka | BS & DIN | Japan |
| Daidaitacce | ASTM A276 | EN 10088 | JIS G4303 |
| Maki | S44004/440C | X105CrMo17/1.4125 | SUS440C |
Haɗin Sinadarin Karfe ASTM A276 440C da Daidaito
| Daidaitacce | Matsayi | 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 | X105CrMo17/1.4125 | 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 |
Bakin Karfe 440CInjiniyanciKadarorin
| Zafin Jiki (°C) | Ƙarfin Taurin Kai (MPa) | Ƙarfin Ba da Ƙarfi Shaida 0.2% (MPa) | Tsawaita (% a cikin 50mm) | Taurin Rockwell (HRC) | Impact Charpy V (J) |
| An rufe* | 758 | 448 | 14 | matsakaicin 269HB# | - |
| 204 | 2030 | 1900 | 4 | 59 | 9 |
| 260 | 1960 | 1830 | 4 | 57 | 9 |
| 306 | 1860 | 1740 | 4 | 56 | 9 |
| 371 | 1790 | 1660 | 4 | 56 | 9 |
Ga wasu muhimman abubuwan da za a yi don gabatar da sandar ƙarfe mai faɗi ta 440C:
1. Abun da ke ciki: Sandar ƙarfe mai faɗi ta bakin ƙarfe 440C galibi ta ƙunshi chromium (16-18%), carbon (0.95-1.20%), da ƙananan adadin wasu abubuwa kamar manganese, silicon, da molybdenum.
2. Juriyar Lalacewa: Sandar lebur mai bakin karfe 440C ta shahara saboda juriyar lalacewa, wanda hakan ya sa ta dace da amfani da kayan gogewa, kayan aikin yankewa, bearings, da kayan da ba sa jurewa lalacewa.
3. Juriyar Tsatsa: Duk da cewa ƙarfe ne mai yawan carbon, 440C yana da kyakkyawan juriya ga tsatsa.
4. Tauri da Ƙarfi: Sandar ƙarfe mai faɗi ta 440C mai bakin ƙarfe tana da matuƙar tauri da ƙarfi, tana samar da dorewa da tsawon rai a aikace-aikace masu wahala.
Lokacin Saƙo: Yuli-05-2023