Active Member
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[China]
Address: Building 1, Cross-border E-commerce Industrial Park, Comprehensive Bonded Zone, Zhengpugang New District, Ma’anshan City, Anhui Province
Contact name:kelly Wang
Maanshan Kingrail Technology Co.,Ltd. |
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Introduction of Premium Quality Railway Rail Heavy Steel Best Price High Quality Q235B/55Q/U71mn railroad track railway steel rail
Rails are the main components of railway tracks. Its function is to guide the wheels of the rolling stock to move forward, bear the huge pressure of the wheels, and transmit them to the sleepers. The rails must provide a continuous, smooth and least drag rolling surface for the wheels. In electrified railways or automatic blocking sections, the rails can also be used as track circuits.
The trolley rail of the crane must be fixed on the travel beam, and
the trolley rail must be fixed on the main beam. When the crane is
running, the track cannot move horizontally and vertically, and the
track should be easy to adjust.
length
The standard lengths of the rails are 9, 9.5, 10, 10.5, 11, 11.5,
12, 12.5 m.
After the agreement between the supplier and the buyer and it is
indicated in the contract, a certain proportion of indefinite
length rails with a length of 4 m to 8.9 m can be supplied.
However, when calculating the weight, it is upgraded by 100 mm.
The allowable deviation of rail length is +50 0 mm.
shape
The lateral curvature of the rail shall not be greater than 1.5 mm
per meter, and the total curvature shall not be greater than 8 mm.
The total curvature of the rails in the upper and lower directions
shall not exceed 6 mm.
The end of the rail should not be bent more than 1 mm within 0.5 m.
The QU120 crane rail is limited by the capacity of the
straightening equipment. The degree of curvature is negotiated by
both supply and demand.
The torsion of the rail shall not be greater than 1/10 000 of the
full length of the rail.
The asymmetry of the rail cross section and the vertical axis: the
bottom of the rail should not be larger than 2 mm, and the head of
the rail should not be larger than 0.6 mm.
The bottom of the rail should not be recessed. The center of the
rail bottom should not protrude more than 0.5 mm from the two
sides.
Weight
Our rails for mining and industry are with the highest quality.
The rails are delivered according to the theoretical weight.
Light rails with weight from 18 Kg/m to 40 Kg/m are commonly used in underground mining operations and also for industrial settings.
Manufacture
The rails are made of killed steel from open hearth smelting.
A production process that does not produce white spots in the rail
should be used.
Mechanical properties
The tensile strength of the rail is not less than 90 kg/mm.
Surface Quality
There shall be no cracks, folds, scars, bubbles and inclusions on
the rail surface. Indentations, pits and scratches with a depth not
greater than the allowable negative deviation value of the rail
size and hairlines with a depth not greater than 1 mm are allowed.
There shall be no residual cracks, delaminations and shrinkage
holes on the end face of the rail.
The end face of the rail shall be cut straight, and the skew of the
end face shall not exceed 5 mm in any direction. Burrs with a
length of not less than 4 mm should be removed.
The surface defects of the rail are allowed to be cleaned
longitudinally with an air shovel, and the cleaning depth
(calculated on one side) shall not be greater than the allowable
negative deviation of the size.
Rail surface defects are not allowed to be repaired or filled by
welding.
Light Rail
| Type | Head Width(mm) | Height(mm) | Bottom Width | Web Thickness(mm) | Theory Weight(kg/m) | Grade | Length |
| 8kg | 25 | 65 | 54 | 7 | 8.42 | Q235B | 6M |
| 12kg | 38.1 | 69.85 | 69.85 | 7.54 | 12.2 | Q235B/55Q | 6M |
| 15kg | 42.86 | 79.37 | 79.37 | 8.33 | 15.2 | Q235B/55Q | 8M |
| 18kg | 40 | 90 | 80 | 10 | 18.6 | Q235B/55Q | 8-9M |
| 22kg | 50.8 | 93.66 | 93.66 | 10.72 | 22.3 | Q235B/55Q | 7-8-10M |
| 24kg | 51 | 107 | 92 | 10.9 | 24.46 | Q235B/55Q | 8-10M |
| 30kg | 60.33 | 107.95 | 107.95 | 12.3 | 30.1 | Q235B/55Q | 10M |
Heavy Rail
| Head Width(mm) | Height(mm) | Bottom Width | Web Thickness(mm) | Theory Weight(kg/m) | Grade | Length | |
| P38 | 68 | 134 | 114 | 13 | 38.73 | 45MN/71MN | |
| P43 | 70 | 140 | 114 | 14.5 | 44.653 | 45MN/71MN | 12.5M |
| P50 | 70 | 152 | 132 | 15.5 | 51.51 | 45MN/71MN | 12.5M |
| P60 | 73 | 176 | 150 | 16.5 | 60.64 | U71MN | 25M |
Crane Rail
| Head Width(mm) | Height(mm) | Bottom Width | Web Thickness(mm) | Theory Weight(kg/m) | Grade | Length | |
| QU70 | 70 | 120 | 120 | 28 | 52.8 | U71MN | 12M |
| QU80 | 80 | 130 | 130 | 32 | 63.69 | U71MN | 12M |
| QU100 | 100 | 150 | 150 | 38 | 88.96 | U71MN | 12M |
| QU120 | 120 | 170 | 170 | 44 | 118.1 | U71MN | 12M |
We provide light rails in various sizes and standards:
Company Advantages:
1.Main products:railroad wheels and other relative railway products
such as the axles, rails, track bolts ,fish bolts ,tie plates and
some customized forging or casting products.Wheels range from 250mm
to 1100mm diameters
and are avaiblable to both standard and bespoke (customized).
2.In every way possible 100%,Short leading times from 7 days to 30
days due to rich production experiences of ISO verified .
3.We are in the city of Maanshan , where is the Baowu Group MASTEEL
Rail Transit Materials Technology Co. Ltd the 9th biggest steel
producer globally.Here is the oringinal source of steel material
with internatinal standards such as BS,AAR, JIS ,IRS and Gost,
which ensure customer to get exceptianal quality safety critical
railway components at a very cometitive price.
4.We believe in quality first principle,Kingrail maintains
accreditation in ISO, RISQS, . Providing this level of
assurance.100% inspection before shiping.
Please contact us if you have the relative inquires!
