Q420qENH weathering steel plate delivery status

Q420qENH steel plate material introduction:
Q420qENH steel plate is a weather resistant steel plate for bridges. It is a weather resistant steel, that is, an atmospheric corrosion resistant steel. It is between ordinary steel and stainless steel, and its weather resistance is 2-8 times that of ordinary steel. Q420qNH steel can be divided into three grades: D, E and F.

Q420qENH steel plate delivery status:
Q420qENH steel plate shall be delivered in the heat treatment state of hot rolling, thermo mechanical controlled rolling and tempering (quenching + high temperature tempering); Tempering treatment shall be carried out when cooling mode with faster cooling rate than that in air is adopted. The demander can select the delivery status according to the demand, or add the requirements of flaw detection standard, flaw detection level, alloy element composition control, thickness direction performance (Z-direction performance), but it is necessary to negotiate with the manufacturer in advance when making an inquiry or ordering rolling, and sign a written agreement.

Q420qENH steel plate smelting method:
Q420qENH steel plate shall be smelted by electric furnace or converter, and shall be refined outside the furnace.

Ordered rolling size of Q420qENH steel plate:
Thickness: 6-100mm, width: 1600-4000mm, length: 6000-17500mm.

Basic application of Q420qENH steel plate:
Q420qENH steel plate, as a kind of bridge structural steel plate used routinely, is mainly used in places with high requirements for roads and bridges, and can be rolled according to the requirements specified by customers.