As the steel grade touches on the load capacity, span and the structure distribution requirements of construction, users always consider about the specific steel grade according to design requirements when buy the galvanized steel sheet. On the basis of tensile strength, the galvanized steel sheet can be divided into 280MPA, 340MPA, 400MPA, 540MPA and full hard board etc..
The intensity of color coated steel sheet relies on the substrate. Therefore, their intensity can reference to the data of substrate, and some enterprises also divide according to CQ, DQ, HSS and FH. But the factory technician in CAMELSTEEL thinks that the final choice of intensity should depend on the user’s requirements, especially the corresponding yield strength, tensile strength, elongation and other important indicators. With the use experience and the actual needs of users all gradually same to most of the steel material, coated steel plate also develop to the medium and high strength.
The galvalume steel substrate is accepted by more users in recent years. Due to the different performance of zinc and aluminium under acidic and alkaline conditions, it is recommended to use the color coated steel sheet with galvalume steel substrate in acidic conditions and galvanized steel substrate in alkaline conditions.