The electric overhead crane track and the construction of main girder need to use I-beam steel, the steel specific specifications according to electric overhead crane performance requirements to select I-beam steel. At present, China overhead crane mainly adopt GB706- 65 and YB163-63 I-beam steel. Generally, the grade I-beam steel grade for overhead crane's track can not be lower than Grade B, for example, if the 3 ton electric hoist single beam bridge crane adopts 25B I-beam steel.
Electric overhead crane I-beam steel is an I-shaped cross-section steel material, can be divided into ordinary I-beam, light I-beam and H-beam. About ordinary I-beam, light I-beam, Chinese market has formed the relevant standards, and H-beam, is still using the European standards. H-type series includes HW type, HN I-beam, has a wide range of production and application in our country.
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