Q500qENH what material, Q500qENH weathering bridge steel plate fixed rolling, Q500qENH chemical comp

Q500qENH what material, Q500qENH weathering bridge steel plate fixed rolling, Q500qENH chemical comp

Q500qENH is the first letter of the Chinese pinyin of the word "resistant" in the weathering bridge steel plate; H--the first letter of the Chinese pinyin character "Hou"; D - Quality grade is D. D, E and F represent the quality grades of the material, corresponding to -20°C impact, -40°C impact, and -60°C impact, respectively.

The implementation standard of Q500qENH is: GB/T 714-2015 standard.

Q500qENH steel plate rolling: Wugang Xiangyang

Q500qENH heat treatment process: thermomechanical rolling, quenching and tempering.

Q500qENH steel plate implementation standard: GB/T 714-2015 This standard is applicable to Q500qENH steel plate thickness is not more than 150mmQ500qENH steel plate is mainly used to erect railway or highway bridges steel plate.

Q500qENH tensile test

of mechanical properties

of steel plate Yield strength R/MPa Tensile strength R/MPa Elongation after break A/% temperature C Impact absorption energy KV/J

Thickness 50mm 50mm Thickness 100mm 100mm < thickness S150mm

not less than not less than

500 480 = 630 18 18 -40 120

Q500qENH steel plate technical requirements:

When the demander requires to ensure the performance of the thickness direction, it should comply with the provisions of GB/T5313. b. The allowable deviation of the chemical composition of the finished steel should be symbolized GB/T222