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Steel rail is the main component of railway track. Its function is to guide the wheels of rolling stock to move forward, bear the huge pressure of the wheels, and transmit it to the sleepers. The rail must provide a continuous, smooth and least resistance rolling surface for the wheels.
Manufacturing Process of Rails:
Raw Matrials –Heating – High pressure water dephosphorization – Blooming – High pressure air Phosphorus removal-Planish-Sawing-Pre Bending-Air Cooling-Physical and Chemical Property testing-Straightening- UT flaw detection – Drilling and milling-Heat Treatment-Test Rating-Identification-Package-Fished Steel Rails.
As a Japanese standard railway rail, JIS 60KG rail means its weight per meter is approximately 60 kg (60.6 kg). It belongs to heavy rail, not only used for railway construction, but also used for cranes and port crane rails.
Weight: 60.80kg/m
Material: U71Mn/U75VX
Length: 12m-25m
Rail height: 176mm
Bottom width: 150mm
Head width: 73mm
Web thickness: 16.5mm
Mechanical Properties of 60kg Rail:
| Proof Stress | Tensile Strength | Elongation Gauge Length | Surface Hardness |
| 420MPa | 880MPa | 8% 5.65 √So | 260H.B |
| Carbon | Silicon | Manganese | Phosphorus | Sulfur |
| 0.65-0.82 | 0.15-0.58 | 0.70-1.25 | 0.025 max | 0.025 max |
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