Dry Kai Trading Co., Ltd. Hebei annual sales of various steel products, profiles, pipes, wire. Customer first, honesty is gold, silver wealth, you are welcome to visit the (incoming) phone number: 15127095553 18712998887 Mobile: 13784367778 18731117033 Telephone: 85090007 Fax: 85090007 rail rail is the main component parts of the railway track. Its function is to guide the wheels rolling stock forward, under great pressure of the wheel, and passed to the sleepers. Rail must provide continuous, smooth and rolling surface of least resistance for the wheels. In electrified railway or automatic block section, but also cater to the rail with a track circuits. JIS G 3466 (JIS) general construction with seamless rectangular tube angle Rectangular Pipe Material: Q235, Q345 (16Mn), 20 #, alloy steel, stainless steel. Rectangular Pipe Usage: machinery and equipment, solar equipment, steel, automotive parts, bridge piles, fence, with the internal structure of the ship is based on the type of rail per kilogram-meter-long rail mass number represents. Rails used on China's railway has 75kg / m, 60kg / m, 50kg / m, 43kg / m and 38kg / m and so are several. Using cross-sectional shape of the rail workers bending shaped cross section with the best performance, rail head, consisting of 43G, 50G, 60G waist rail and rail-sectional view of the bottom rail of three parts. To better withstand the force of the rail from various aspects, to ensure the necessary strength conditions, the height of the rail should be sufficient, the head and the bottom shall have sufficient size and height, waist and bottom should not be too thin. These types of rail in, 38kg / m rail has now ceased production, 60kg / m, 50kg / m rail laid on the main trunk lines and stations dedicated lines are generally laid 43kg / m rail. For heavy-duty rail and particularly busy section of the railway, the laying of 75kg / m rail. In addition, in order to meet the needs of turnout, bridge and other structures of CWR, China's railway also uses special section (with the axis of asymmetric-shaped) rail. Now used more for short special section of the rail, referred to AT rails. [1] The standard length edit this section of rail to rail length of 12.5m and 25.0m two kinds. Special heavy, heavy rail standard length of rail 25.0m, other types can be 12.5m25.0m standard length of rail track. "250km / h Passenger Dedicated 60kg / m rail interim technical conditions" requirement, 250km / h passenger line (both freight) rail track length standard length of 100m. Shorten the length of the curve rail track shorter than three standard 12.5m 40,80,120 mm, there are three shorter than 25.0m 40,80,160 mm standard gauge of. [2] per meter of rail weight in kilograms generally can be divided into the crane rails (crane rail), heavy rail and light rail three: ① crane rails into QU120, QU100, QU80, QU70 of four, the material is generally manganese Steel, the largest single weight is QU120 up to 118kg / m. ② heavy rail. Steel used by the steel is divided into: ordinary manganese rails, copper carbon steel rail, high silicon containing steel rails, copper rails, rail manganese, silicon, and other tracks. There 38,43,50 kg three. There are also a small number of 45kg for rail line, has been planned on the large volume and high-speed rail line with a 60kg. GB2585-81 provides our 38 ~ 50kg / m rail technical conditions, such as its size and code shown in Table 6-7-10. 2007 China promulgated a new standard GB 2585-2007, in addition to 38 ~ 50kg / m, the new addition 60kg / m and 75kg / m heavy rail both models. 1) Each provision of heavy rail in its parts, rolling a clear sign of raised: production plant flags, steel, heat number, model number, manufacturing) number years (months. Have expressed particular significance "A", "Z" and other words and white paint. (2) to bundle delivery of light rail, should be hung indicate batch card. Quality certificate content (3) rail, press "8" in (12) standards. Acceptance Note (1) Delivery shall be strictly in accordance with the provisions of the contract and accessories, completed during the claim period to ensure the quality of the general inspection. (2) quality assurance period in rail, rail to pay attention to quality changes. Quality problems have occurred in recent years, several imported rails run using the actual claims, inspection and quarantine institutions such as the use of ultrasonic flaw detection means to ascertain the split-rail, rail surface defects such as peeling, after inspection and quarantine certificates issued, made significant claims results. Qq number: 1622270635 To order, please call the dealer phone number: 151-270-955-53