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AREMA TR57 (115RE) America standard steel rail
Heavy rail | Height (mm) | Bottom width (mm) | Head width (mm) | Middle thickness (mm) | Length (m) | Weight (kg/m) |
TR-45 (90 ARA-A) | 142.9 | 130.2 | 65.1 | 14.3 | 12-36 | 44.64 |
TR-50 (100 RE) | 152.4 | 136.5 | 68.2 | 14.3 | 12-36 | 50.35 |
TR-57 (115 RE) | 168.3 | 139.7 | 69 | 15.9 | 12-36 | 56.9 |
TR-68 (136 RE) | 185.7 | 152.4 | 74.6 | 17.4 | 12-36 | 67.56 |
MRS 87B (CR 175) | 152.4 | 152.4 | 102.4 | 38.1 | 12-36 | 86.8 |
R0900A | Mechanical property | Chemical composition | |||||||||
Yield strength | Tensile strength | Elongation | Hardness | C | Si | Mn | S | P | |||
MPa | kg/mm² | MPa | kg/mm² | min | HB | ≤ | ≤ | ||||
880min | 10% | 260 | 0.6-0.8 | 0.1-0.5 | 0.8-1.3 | 0.04 | 0.04 |
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