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Heavy rails type 40 Kg/m, and 49 Kg/m |
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Electric steel, grade700 according to UIC 860.
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Chemical composition [%] |
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| C | Mn | Si | P | S | |
| 0,40 - 0,60 | 0,8 - 1,25 | 0,05 - 0,35 | max. 0,05 | max. 0,05 | |
| Mechanical characteristics | |||||
| Tensile strength [N/mm2] | Elongation after fracture [%] | ||||
| 680 - 830 | min. 14 | ||||
Dimensions and limit tolerances
| Dimensions and tolerances *) |  Acc. to fig. 1
Acc. to fig. 2 |
| Asymmetry of section | +/- 1,2 mm |
| Inclination of fishing surfaces (measured on a basis length of 14 mm, | +/- 0,5 mm |
| Weight deviation | +1/-2 % |
Shape deviations
| Roughness of the ends | max. 1 mm |
| Maximum permissible deviation from straightness in horizontal and vertical plane | 2,0 mm / m |
Delivery lengths
| Length types | Delivery length [m] | Permissible deviations [mm] |
| Manufacture lengths | max. 15 |
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| Fixed lengths | max. 15 | + 100 for hot sawn rails (after rolling)
+/-3 for milled and drilled rails +/-6 for milled rails, without fish bolt holes |
Delivery state, delivery
| Delivery state | Delivery |
| Rough rolled, straightened, without heat treatment, milled or unmilled, drilled or undrilled | Without packing and unprotected to corrosion, free or in bundles of 3 or 5 pcs./each |