Q235 steel is divided into four types: Q235A, Q235B, Q235C and Q235D. This is the distinction of grades, which mainly represents the difference of impact temperature in performance!
Q235 class A, no impact;
Q235B grade, 20 degree normal temperature impact;
Q235C, 0 degree impact;
Q235d grade, which is - 20 degree impact.
At different impact temperatures, the impact values are also different.
The main mechanical properties of Q235 steel are as follows: yield strength: 235Mpa; Tensile strength: 375-460Mpa; Elongation 26%; Impact energy: 27J.
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