Muhtasari wa Reli ya Chuma
Chuma cha reli, kinachojulikana kama chuma cha reli, ni chuma maalum katika bidhaa za metali zinazotumika hasa kwa reli. Reli hubeba uzito na mzigo unaobadilika wa treni. Uso wake huchakaa, na kichwa huathiriwa. Reli pia inakabiliwa na mkazo mkubwa wa kupinda. Uchapishaji mgumu na huduma ya muda mrefu huleta uharibifu kwenye reli.
Vipimo vya Reli Nyepesi
| Aina | Upana wa Kichwa(mm) | Urefu(mm) | Upana wa Chini | Unene wa Wavuti (mm) | Uzito wa Nadharia (kg/m2) | Daraja | Urefu |
| Kilo 8 | 25 | 65 | 54 | 7 | 8.42 | Q235B | 6M |
| Kilo 12 | 38.1 | 69.85 | 69.85 | 7.54 | 12.2 | Q235B/55Q | 6M |
| Kilo 15 | 42.86 | 79.37 | 79.37 | 8.33 | 15.2 | Q235B/55Q | 8M |
| Kilo 18 | 40 | 90 | 80 | 10 | 18.6 | Q235B/55Q | 8-9M |
| Kilo 22 | 50.8 | 93.66 | 93.66 | 10.72 | 22.3 | Q235B/55Q | 7-8-10M |
| Kilo 24 | 51 | 107 | 92 | 10.9 | 24.46 | Q235B/55Q | Miezi 8-10 |
| Kilo 30 | 60.33 | 107.95 | 107.95 | 12.3 | 30.1 | Q235B/55Q | Milioni 10 |
Vipimo vya Reli Nzito
| Upana wa Kichwa(mm) | Urefu(mm) | Upana wa Chini | Unene wa Wavuti (mm) | Uzito wa Nadharia (kg/m2) | Daraja | Urefu | |
| P38 | 68 | 134 | 114 | 13 | 38.73 | 45MN/71MN | |
| P43 | 70 | 140 | 114 | 14.5 | 44.653 | 45MN/71MN | Milioni 12.5 |
| P50 | 70 | 152 | 132 | 15.5 | 51.51 | 45MN/71MN | Milioni 12.5 |
| P60 | 73 | 176 | 150 | 16.5 | 60.64 | U71MN | Milioni 25 |
Vipimo vya Reli ya Crane
Kazi ya Reli ya Chuma
-a. Magurudumu ya mwongozo wa usaidizi
-b. Hutoa upinzani mdogo kwa kuzungusha magurudumu
-c. Kuunganisha juu na chini, kusambaza nguvu kwa watu wanaolala
-dKama saketi ya kondakta-njia









