Q235 Q275 C Channel

What is the difference between Q275  and Q235?
First, The yield limit is different: the yield limit of Q235 is 235MPa; the yield limit of Q275  is 275MPa. All of them are ordinary carbon structural steel, Q represents the yield limit of the steel material, and the following numbers refer to the yield value of the steel material.

Second, Carbon content and tensile strength are different: Q235  carbon content is 0.14-0.22%, tensile strength is 375-500; Q275  carbon content is less than 0.37%, tensile strength is 410-560. The carbon content of Q275  is generally higher than that of Q235, and the tensile strength is also higher.

Third, Different applicability: Q235 is applied to buildings and engineering structures, such as making steel bars or building workshop frames, high-voltage transmission towers, vehicles, boilers, containers, ships, etc. Q275 is used to manufacture parts with high strength requirements, such as gears, shafts, sprockets, nuts, profile steel for agricultural machinery, conveyor chains and chain links.

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