Introduction of Q690GJC-Z15 medium carbon high wear-resistant steel grades
Q690GJC-Z15 is a kind of steel plate for building structure, and the trademarks are Q690GJC-Z15, Q690GJD-Z15, and Q690GJE-Z15. Q690GJC-Z15 Gao Jiangang executive standard
Q690GJC-Z15 steel executive standard GB/T19879-2015, there are other grades of Gao Jiangang, such as: Q690GJC-Z15|Q690GJD-Z15|Q690GJE-Z15
| Chemical composition |
| Tabulation: Depu Steel Date: 2024-01-18 |
| C |
Si |
Mn |
P |
S |
V |
Nb |
Ti |
Als |
| ≤0.18 |
≤0.6 |
≤2.0 |
≤0.025 |
≤0.015 |
≤0.12 |
≤0.11 |
≤0.030 |
≤0.015 |
Note:
(1): In order to improve the properties of steel, other trace alloying elements other than the above table can be added, and the data comes from the network and is for reference only.
(2): The allowable deviation of the chemical composition of the finished steel plate shall comply with the provisions of
GB/T222
Q690GJC-Z15 high-tech steel plate mechanical function: Material:
Q690GJC-Z15
yield strength ReL(N/mm2) ≥690
tensile strength Rm/ (N/mm2) 670-830 Elongation A/% ≥17
Impact energy (longitudinal) Akv/J 55
180
tortuous test d = bending diameter d = 3a
yield ratio, not more than 0.85
Q690GJC-Z15
steel plate is usually quenched and tempered, TMCP, Delivered in TMCP+ tempering case, the steel plate should be delivered with trimmed edges (two cuts and two hairs or four trimmed edges)
