Q390GJC-Z35 steel plate description

In recent years, with the development of cities and the renovation process of urban villages, buildings have also transformed from the previous brick concrete structure to the current steel plate frame structure. When conventional steel plates cannot meet the demand, building structural steel plates emerge as the times require. Q390GJC-Z35 steel plate belongs to a type of high-rise building structural steel plate. Generally, Q390GJC steel plate is relatively rare, as it is a building structural steel plate. Simply meeting the length and width performance of the steel plate is not feasible, and the thickness performance of the steel plate also requires higher requirements. Therefore, the steel plate needs to be added with this thickness direction performance, commonly referred to as "Z-direction".

Q390GJC-Z35 steel plate grade description:
A simple grade name is relatively easy to understand internally, but the Q390GJC-Z35 steel plate has an additional "Z35" suffix compared to the ordinary Q390C steel plate. Z35 "indicates that the Z-direction performance level of this steel plate is 35, with a total of three grades: Z15, Z25, and Z35. The higher the number, the higher the level!

Composition analysis (melting analysis) of Q390GJC-Z35 steel plate:
C: ≤0.20; Mn: 1.00-1.60; Si: ≤0.55; P: ≤0.030; S: ≤0.030; V: 0.02-0.20; Nb: 0.015-0.060; Ti : 0.02-0.20; Al: ≥0.015; Cr: ≤0.30; Ni: ≤0.70；

Performance analysis of Q390GJC-Z35 steel plate (mechanical properties):
1) Tensile yield performance ≥ 390MPa;
2) The tensile strength is between 510-660MPa;
3) Impact energy value ≥ 47Akv/J;

Q390GJC-Z35 steel plate execution standard:
The Q390GJC-Z35 steel plate is based on the Q390GJC steel plate, so it also belongs to the overall planning of high-rise building structural steel plates, and implements the standard for high-rise building structural steel plates, with the standard number being "GB/T709".

Q390GJC-Z35 steel plate delivery status:
Q390GJC-Z35 steel plate can choose hot rolling or normalizing heat treatment process. If there are other technical requirements, private customization can also be chosen, and it can be reflected in the contract after final negotiation.