How do I calculate the difference between rail steel and angle steel, channel steel and I-beam?
Rail steel is of high strength low alloy steel, it also has a special performance requirements, is a small thermal expansion coefficient, which is now the high-speed driving conditions, in order to reduce the collision between the wheel and rail wear and rail length ratio
Ordinary I-beam, light I-beam flange is variable cross-section, depending on the thickness of the web, the external thin; H steel: HW, HM, HN, HEA, HEB, HEM and so on, the flange of I-beam is a uniform sectionOrdinary I-beam, lightweight I-beam has formed the national standard, the common 10# I-beam is equivalent to the Internet I100 (such as 10# also channel equivalent channel (U100) for the implementation of the standards of different countries, which have subtle differences in their specifications)H type I-beam is also called wide flange I-beam, HW, HM, HN originated from European standards, HEB is the German standard of I-beam, of which HW, HN I-beam has been widely used in our country and production. HEA HEB HEM will be seen on many German designs and is hard to buy on the domestic market. In the domestic steel structure engineering, if the quantity is few, then may use the specification steel plate to carry on the welding splicing. In the case of large quantities, it is usually considered to use mechanical properties comparable to those of HW and HN steel.
Rail steel shall be a kind of high strength low alloy weather resistant steel, and it also has a special performance requirement, that is, the coefficient of thermal expansion is small. This is the case of high-speed running, in order to reduce the wheel rail collision and wear, rail length ratio.I-beam is mainly divided into ordinary I-beam, light I-beam and H steel three.
