Steel Heavy Rail GB2585-81 with High Quality

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Loading Port:
China main port
Payment Terms:
TT or LC
Min Order Qty:
25 m.t.
Supply Capability:
100000 m.t./month

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Product Description:

Specificaions of Steel Heavy Rail GB2585-81 with High Quality:

Production Standard: GB2585-81

Material: 50Mn, U71Mn

Grade

Element(%)

C

Mn

S

P

Si

50Mn

0.48—0.56

0.70—1.00

≤0.035

≤0.035

0.17-0.37

U71Mn

0.65—0.76

1.10—1.40

≤0.030

≤0.030

0.15-0.35

Sizes: 38kg, 43kg, 45kg, 50kg, 60kg

Length: 10m, 12m, 12.5m or as the requriement of the clients

Ms Heavy Steel Rail

 

Invoicing on theoretical weight or actual weight as customer request

Payment terms: 30% advance payment by T/T, 70% payment against the copy of the B/L; 100% L/C at sight, etc.

Usage & Applications of Steel Heavy Rail GB2585-81 with High Quality:

Heavy Steel Rail is suitable for the laying of main trunk line of the curves and the orbit of the tunnel, can also be used for tower crane and other crane track.

For example: railway, subway, transportation track, express, curve way, tunnel way.

 

Packaging & Delivery of Steel Heavy Rail GB2585-81 with High Quality:

1. Packing: it is nude packed in bundles by steel wire rod

2. Bundle weight: not more than 3.5MT for bulk vessel; less than 3 MT for container load

3. Marks:

Color marking: There will be color marking on both end of the bundle for the cargo delivered by bulk vessel. That makes it easily to distinguish at the destination port.

Tag mark: there will be tag mark tied up on the bundles. The information usually including supplier logo and name, product name, made in China, shipping marks and other information request by the customer.

If loading by container the marking is not needed, but we will prepare it as customer request.

4. Transportation: the goods are delivered by truck from mill to loading port, the maximum quantity can be loaded is around 40MTs by each truck. If the order quantity cannot reach the full truck loaded, the transportation cost per ton will be little higher than full load.

5. Delivered by container or bulk vessel

 

6. Delivery Time: All the Ms Heavy Steel Rail will be transpoted at the port of Tianjin, China within 30 days after receiving the advance payment by T/T or the orginal L/C at sight.

Production flow of Steel Heavy Rail GB2585-81 with High Quality:

Material prepare (billet) —heat up—rough rolling—precision rolling—cooling—packing—storage and transportation

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A3: Within three days of placing an order, we will begin production. The specific shipping date is dependent upon international and government factors, but is typically 7 to 10 workdays.

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Ms Heavy Steel Rail

Steel Heavy Rail GB2585-81 with High Quality

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Q:What is the method to check the straightness of rail?
The measurement of rail straightness is one of the important parts of length measurement technology. The commonly used methods are straight ruler method, collimation method, gravity method and straight line method.
Q:How are the rail tracks worn?
Rail is the main component of railway track. Its function is to guide the wheel of the rolling stock, to bear the great pressure of the wheel and to deliver it to the sleeper. The rail must provide a continuous, smooth, and least resistant rolling surface for the wheel. In electrified railway or automatic block section, rail can also be used as track circuit.
Q:The difference between small resistance and constant resistance fastener of high speed rail
The railway line to solve the rail expansion and contraction method is generally used for fastening the way, is the shrapnel into spring fastener fastener (also called spring bar fastener), rail tightly in the sleepers, forcibly will produce thermal expansion and contraction of the energy to digest, but the existence of such a problem is generated when the thermal expansion and contraction energy is greater than the distance unit of sleeper rail adhesion, makes up the phenomenon of rail, rail sleeper unit length twist. In order to solve this problem, the railway department within a certain distance, playing a few holes in the rail waist to release the energy generated by thermal expansion and contraction, and within a certain distance (about 1500m) retaining rail joint, to assist in releasing the energy generated by the thermal expansion and contraction, in order to solve the problem of rail expansion and contraction. First of all, the first point is that the steel of the rail is not made in China, all of them are imported, and the quality of the rail is guaranteed to the maximum extent.
Q:What type of rail is the main type used on the railway?
Light rail: No. 5, 8, 11, 15, 18, 24. The rail locomotive need to withstand pressure, friction and shock loads, required strength, hardness and toughness sufficient, high quality requirements, we must test its mechanical properties and macrostructure and drop test etc..
Q:What is the rail temperature stress?
The rail temperature stress is that the rail will expand and contract when the temperature changes. It is bound by the fastener and the internal force.
Q:How to deal with old rail rail?
Two methods:1, the rails will be melted recast.2. Make rail into other landmark buildings.Note: old rail should be prepared after the public security reported.
Q:Seamless rail is not afraid of expansion and contraction?
Seamless rail is also afraid of thermal expansion, cold contraction, but better than ordinary steel pipe. Thermal expansion and contraction are the laws of physics. When heated, the distance between molecules increases, and the rails extend. Similarly, cold contracts.
Q:What is the width of the rail grade 43kg/m?
The temporary technical specification for 60kg/m rail of 250km/h passenger dedicated line stipulates that the length of rail gauge for 250km/h passenger dedicated line (taking into account freight) is 100m.Curve shorten rail length than 12.5m standard rail short, 40, 80, 120mm three kinds, there are three shorter than the 25.0m standard rail, 40, 80, 160mm.
Q:Why are the rails made of I-beam?
The rail section of the modern use of "working" shape, divided into rail waist and bottom contact with the wheel rail, the middle rail base. Different routes have different requirements on rail strength, stability and wear resistance. Therefore, rail also has different specifications. Which one should be used on a route, taking into account economic and technical factors?.
Q:What is the material for railway track
Rail, rail, rail, etc. Used on a railroad and in conjunction with a switch, so that the train can walk without turning. The rails are usually made up of two balanced rails. The rails are fixed on the sleepers and the sleepers are ballast.A railroad track made of steel, capable of carrying greater weight than other materials. Sleepers are also called sleepers, grey pillows, or road sleepers. The function is to distribute the weight of the rails separately, and to keep the rails fixed, and to maintain track gauge.Generally speaking, the bottom of the track is paved with gravel. Ballast, also known as ballast, ballast or ballast, provides flexibility and drainage for the track. You can also shop in the rail base on the concrete (the bridge is quite common), or even embedded in concrete.

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