Hot Rolled Mild Heavy Steel Rials for Minas 50Mn, U71Mn Made in China

Ref Price:
Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
25 m.t.
Supply Capability:
2000000 m.t./month

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Product Description:

Specifications of Hot Rolled Mild Heavy Steel Rials for Minas 50Mn, U71Mn Made in China

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

Production Standard: GB2585-81, DIN, AREMA, JIS, BS, UIC, etc.

Material: 50MN, U71MN, 900A, 110A, etc.

Length: 6m-25m according to the requriements of the clients

Steel Heavy 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.

Applications of Hot Rolled Mild Heavy Steel Rials for Minas 50Mn, U71Mn Made in China

Heavy 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.

Tunnel way, curve way, railway, subway, transportation track, express, etc.

Steel Heavy Rail

steel heavy rail

Package & Delivery of Hot Rolled Mild Heavy Steel Rials for Minas 50Mn, U71Mn Made in China

1. Package: 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

steel heavy rail

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.

Steel Heavy Rail

Tag mark: there will be tag mark tied up on the bundles. The information usually including supplier logo and name, product name, size, length, grade, 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.

steel heavy rail

5. Delivered by container or bulk vessel

steel heavy rail    

steel heavy rail

6. Delivery Time: All the Hot Rolled 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.

Inspection of Hot Rolled Mild Heavy Steel Rials for Minas 50Mn, U71Mn Made in China

We will send the MTC of the factory to the clients dirrectly which contain the anlisis of the heat, chemiqul composition, phisical characteristicas, etc.

And our inspectors will arrive at the factory to meke the inspection of the size, length, weight and quantity before the transportation from the factory.

FAQ

Q1: Why buy Hot Rolled Mild Heavy Steel Rials for Minas 50Mn, U71Mn Made in Chinafrom OKorder.com?

A1: All products offered byOKorder.com are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, OKorder.com adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.

Q2: How do we guarantee the quality of our products?

A2: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.

Q3: How soon can we receive the product after purchase Hot Rolled Mild Heavy Steel Rials for Minas 50Mn, U71Mn Made in China?

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 20 to 30 workdays.





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Q:Contact surface between train wheel and rail
Considering the long time operation, the nut may have loose, so the inside will not be like the car wheels like that in the process of moving the wheel to fly out, there is in the curve of time can effectively prevent the derailment occurred.
Q:What material is the best for rail?
When the rail is quenched, the strength can reach 1100-1200MPa or 1200-1300MPa. Among them, PD2 is general carbon steel, SQ process full length quenched rail; PD3 is high carbon micro vanadium low alloy rail; BNbRE is low alloy steel rail containing niobium rare earth.
Q:Why is the thermit reaction welded to rails instead of welded rails?
Steel contains other added elements, while the thermit reaction produces only iron.
Q:Why is rail insulated?
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:Why should there be a certain gap in the rail connection?
No, it's expansion and contractionMainly because the track is made of steel, it will heat up and contract cold.If you don't sew it, it will break in summer.But now the latest technology can be used in other ways to overcome the heat up cold contraction effect, as seamless.
Q:What's the difference between a hot rail and a heat treated rail?
Surface heat treatment, such as surface hardening. There is still a difference, but for the same material, heat treatment is the same.
Q:Generally, how often do rail rails change?
But the passenger dedicated line, such as the Beijing-Shanghai high-speed railway, the Wuhan Guangzhou high-speed railway, the Beijing Tianjin Intercity Rail replacement, the cycle is very long, generally can reach ten years or even in the past 20 years, because of the high iron light axle load, line status, and problems of the rail wear less, low probability.
Q:How do the rails of high-speed railways dock?
In fact, thousands of meters of seamless line is a long rail line welded by a number of rails of ordinary length, shipped to the site and welded to a design length of 1km or 2km, or even longer. According to the coefficient of expansion and contraction of the rail, when the temperature increases by 1 DEG C, the rail with 1m length will grow 0.0118mm longer than the original. Thousands of meters of rail expansion, cold contraction length is considerable, winter may cold contraction and fracture, summer may swell and collapse.
Q:What is the method to check the straightness of rail?
The measurement accuracy of the latter is up to 0.4 microns /1000 mm. Straightness measurement is mainly to measure the straightness error of cylinder and cone, the guideway of machine tools and other machines, and the straightness error of the workpiece's linear guide surface.
Q:What is the cause of the side or rail end of the rail? If not timely remediation, what will easily lead to consequences?
This is one kind of disease. In the long run, the rail profile will be out of shape with the standard profile, which may cause the contact point deviation of the wheel tread and make the band widen or narrow or not. Causes sway, noise, and reduces ride comfort. Of course, the speed can not be raised.

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