S690QL steel plate is a European standard special alloy structural steel, which belongs to quenched and tempered high yield strength structural steel, S means structural steel, 690 is the yield value, in MPa, Q means the delivery condition, L means the minimum value of impact energy specified when the temperature is not lower than -50℃.
Chemical composition of S690QL steel plate (melting analysis):
| C | Si | Mn | P | S | Ni | Cr | Mo | Cu | Nb | V | Ti | N | Zr | B |
| ≤0.2 | ≤0.8 | ≤1.7 | ≤0.02 | ≤0.010 | ≤2 | ≤1.5 | ≤0.7 | ≤0.5 | ≤0.06 | ≤0.12 | ≤0.05 | ≤0.015 | ≤0.15 | ≤0.005 |
Mechanical properties and yield tensile strength of S690QL steel plate:
| Delivery Status | Thickness | Mechanical properties | |
| Quenched and tempered | 3-50mm | ReH(MPa) | ≥690 |
| Rm(MPa) | 770-940 | ||
| A(%) | ≥14 | ||
| Impact temperature | -40 | ||
| Longitudinal Akv(J) | ≥30 | ||
| >50-100mm | ReH(MPa) | ≥650 | |
| Rm(MPa) | 760-930 | ||
| A(%) | ≥14 | ||
| Impact temperature | -40 | ||
| Longitudinal Akv(J) | ≥30 | ||
| >100-150mm | ReH(MPa) | ≥630 | |
| Rm(MPa) | 710-900 | ||
| A(%) | ≥14 | ||
| Impact temperature | -40 | ||
| Longitudinal Akv(J) | ≥30 | ||
S690QL steel plate smelting method:
Converter / electric furnace steelmaking → LF furnace refining → VD furnace vacuum degassing → continuous casting / die casting / electroslag → cleaning and heating → rolling → flaw detection → heat treatment → steel plate finishing → sampling → performance inspection.
Delivery status of S690QL steel plate: (Q+T) quenching + tempering.
Just like you, 70% customers choose long-term cooperation with BBN steel not only for our good product and service quality, good reputation in the international market, but also for our experienced one-stop raw material supply and further steel processing!
Henan BEBON Iron&Steel co.,ltd.
Language
Online Consultation
