440C insimbi engagqwali ibha flatiwumkhiqizo wekhwalithi ephezulu wensimbi engagqwali owaziwa ngenhlanganisela yawo eyingqayizivele yokumelana nokuguga nokumelana nokugqwala. Ingowomndeni wensimbi engagqwali ye-martensitic futhi isetshenziswa kabanzi ezimbonini ezahlukahlukene ngokusebenza kwayo okuphezulu.
Izinga lika-440C Amabanga Ensimbi Engagqwali kanye NamaBanga Ensimbi Elinganayo
| Izwe | USA | I-BS ne-DIN | Japan |
| Okujwayelekile | I-ASTM A276 | I-EN 10088 | I-JIS G4303 |
| Amabanga | S44004/440C | X105CrMo17/1.4125 | I-SUS440C |
I-ASTM A276 440C Ukwakheka Kwekhemikhali Yensimbi kanye Nokulinganayo
| Okujwayelekile | Ibanga | C | Mn | P | S | Si | Cr | Mo |
| I-ASTM A276 | S44004/440C | 0.95-1.20 | ≦1.00 | ≦0.04 | ≦0.03 | ≦1.00 | 16.0-18.0 | ≦0.75 |
| I-EN10088 | X105CrMo17/1.4125 | 0.95-1.20 | ≦1.00 | ≦0.04 | ≦0.03 | ≦1.00 | 16.0-18.0 | 0.40-0.80 |
| I-JIS G4303 | I-SUS 440C | 0.95-1.20 | ≦1.00 | ≦0.04 | ≦0.03 | ≦1.00 | 16.0-18.0 | ≦0.75 |
440C Insimbi EngagqwaliOmakhenikhaIzakhiwo
| Izinga Lokushisa Ezishisayo (°C) | Amandla Okuqina (MPa) | Amandla Esivuno 0.2% Ubufakazi (MPa) | Ubude (% ku-50mm) | Ukuqina kwe-Rockwell (HRC) | Umthelela u-Charpy V (J) |
| Okufakiwe* | 758 | 448 | 14 | 269HB ubuningi# | - |
| 204 | 2030 | 1900 | 4 | 59 | 9 |
| 260 | 1960 | 1830 | 4 | 57 | 9 |
| 306 | 1860 | 1740 | 4 | 56 | 9 |
| 371 | 1790 | 1660 | 4 | 56 | 9 |
Nawa amanye amaphuzu abalulekile wokwethula ibha yensimbi engenasici engu-440C:
1. Ukwakheka: Ibha eyisicaba yensimbi engagqwali engu-440C ngokuyinhloko yakhiwe i-chromium (16-18%), ikhabhoni (0.95-1.20%), kanye namanani amancane ezinye izakhi ezifana ne-manganese, i-silicon, ne-molybdenum.
2. I-Wear Resistance: Ibha eyisicaba yensimbi engagqwali engu-440C idume ngokumelana nokugqokwa kwayo okuvelele, okuyenza ifanelekele izinhlelo zokusebenza ezihlanganisa izinto ezincibilikayo, amathuluzi okusika, ama-bheringi, nezingxenye ezingagugi.
3. I-Corrosion Resistance: Naphezu kokuba insimbi engagqwali enekhabhoni ephezulu, i-440C ikhombisa ukumelana nokugqwala okuhle.
4. Ukuqina namandla: Ibha eyisicaba yensimbi engagqwali engu-440C inokuqina okuhle kakhulu namandla aphezulu, ihlinzeka ukuqina nokuphila isikhathi eside ezinhlelweni ezifunwayo.
Isikhathi sokuthumela: Jul-05-2023