S690QL steel is low alloy structural steel,with high strength, good weldability and bending features.The designation S690QL refers to a minimum yield strength of 690 MPa.
S690QL steel is designed with excellent chemical composition and has good tolerance to different corrosive media. S690ql structural steel grade exhibits enhanced wear protection in stress-induced environments. S690QL steel plate is quenched and tempered to provide exceptional strength in different structural steel applications.
s690QL Plate Specification
Thickness: 4mm- 400mm
Width: 1000mm- 4000mm
Length: 4000mm- 12000mm.
Production ability:10000 Tons Per Month.
Technique: Hot Rolled, Quenched( Q)
Heat Treatment: Normalized, Quenched, Tempered,or as required
S690QL Steel Chemical Composition
|
C |
SI |
Mn |
P |
S |
N |
B | Cr | Cu | Mo | Nb | Ni | Ti | V | Zr |
| 0.2 | 0.80 | 1.70 | 0.025 | 0.015 | 0.015 | 0.005 | 1.50 | 0.50 | 0.70 | 0.06 | 2.0 | 0.05 | 0.12 | 0.15 |
S690QL Plate Mechanical Properties
| Designation | Mechanical Properties (ambient temperature) | |||||||
| Steel Grade | Steel Number | Min. Yield Strength ReH MPa | Tensile Strength Rm MPa | Min. & elongation after fracture | ||||
| Nominal thickness (mm) | Nominal thickness (mm) | |||||||
| >3 <50 | >50 <100 | >100 <150 | >3 <50 | >50 <100 | >100 <150 | |||
| S690QL | 1.8931 | 690 | 650 | 630 | 770/940 | 760/930 | 710/900 | 14 |
| V notch impact testing | |||||
|
Grade |
Sample Orientation |
at 0°C |
at -20°C |
at -40°C |
at -60°C |
| S690QL | Longitudinal | 50J | 40J | 30J | |
| S690QL | Transverse | 35J | 30J | 27J | |
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