Detailed explanation of Q370qE steel plate

Bridge steel plate belongs to a large category of steel plates, which requires good fatigue resistance and impact toughness, as well as high corrosion resistance. Generally, the letter "q" is included in the steel plate grade, indicating that this steel plate belongs to bridge steel plate. Based on the increasing pace of national bridge engineering construction, Q370qE steel plate came into being in this context. The impact resistance, corrosion resistance, and low-temperature toughness of Q370qE steel plate can meet the needs of bridge steel plates, and it has good processability, belonging to one of the common bridge steel plates.

Chemical composition of Q370qE steel plate:
The carbon content of Q370qE steel plate is less than or equal to about 0.18%;
The silicon content of Q370qE steel plate is less than or equal to about 0.55%;
The manganese content of Q370qE steel plate is about 1.00-1.60%;
The chromium content of Q370qE steel plate is less than or equal to about 0.30%;
The nickel content of Q370qE steel plate is less than or equal to about 0.30%;
The copper content of Q370qE steel plate is less than or equal to about 0.30%;
The proportion of niobium content in Q370qE steel plate is about 0.005-0.006%;
The vanadium content of Q370qE steel plate is about 0.01-0.08%

Mechanical properties of Q370qE steel plate:
The yield strength of Q370qE steel plate is greater than or equal to 370MPa;
The tensile strength of Q370qE steel plate is greater than or equal to 510MPa;
The elongation after fracture of Q370qE steel plate is greater than or equal to 20%

Executive standard for Q370qE steel plate:
Q370qE steel plate is a bridge structural steel plate in accordance with the national standard GB/T714. Some enterprises implement their own internal enterprise standards.

Q370qE steel plate delivery status:
It can be delivered in a normalized or hot rolled heat treatment state with an impact temperature of - 40℃.