Products Description
S690QL is a high-strength, quenched and tempered structural steel grade conforming to EN 10025-6 standards. The designation S690QL indicates a minimum yield strength of 690 MPa and a tensile strength range of approximately 740–940 MPa, making it ideal for applications requiring high load-bearing capacity.
This grade offers an excellent combination of availability, cost-effectiveness, and performance, including:
Superior mechanical properties: High yield and tensile strength enable lighter structures without compromising safety.
Good weldability: Suitable for complex welded constructions when using proper preheating and welding procedures.
High toughness: Maintains excellent impact resistance even at low temperatures.
Products Specification
|
Gnee Grade : |
EN10025-6 S690QL |
|
Specification (mm) |
THK: 3 to 300, Width: 1500 to 4050, Length: 3000 to 27000 |
|
Standard: |
Technical delivery conditions for flat products of high yield strength structural steels in the quenched and tempered condition |
|
Approval By Third Party |
ABS, DNV, GL, CCS, LR , RINA, KR, TUV, CE |
|
Classification: |
Hot rolled products of structural steels |
S690QLChemical Composition
|
S690QLChemical Composition |
||||||||
|
Grade |
The Element Max (%) |
|||||||
|
C |
Si |
Mn |
P |
S |
N |
B |
Cr |
|
|
S690 QL |
0.20 |
0.80 |
1.70 |
0.020-0.025 |
0.010-0.015 |
0.015 |
0.005 |
1.50 |
|
Cu |
Mo |
Nb |
Ni |
Ti |
V |
Zr |
|
|
|
0.50 |
0.70 |
0.06 |
2.0 |
0.05 |
0.12 |
0.15 |
|
|
S690QLMechanical Property
|
Grade |
S690QLMechanical Property |
|||||
|
Thickness |
Yield |
Tensile |
Elongation |
Min Impact Energy
|
||
|
S690 QL |
mm |
Min Mpa |
Mpa |
Min % |
-40 |
30J |
|
3<t≦50 |
690 |
770-940 |
14 |
-40 |
30J |
|
|
50<t≦100 |
650 |
760-930 |
14 |
-40 |
30J |
|
|
100<t≦150 |
630 |
710-900 |
14 |
-40 |
30J |
|
Equivalent steel grade of S690QL
|
Equivalent steel grade of S690QL |
|||
|
Europe |
Germany |
France |
Sweden |
|
FeE 690 V KT |
TStE 690 V |
E 690T |
2625 |
Products Application
| Application Category | Examples / Details |
|---|---|
| Hydraulic Systems | Hydraulic cylinders, pumps, and actuators |
| Oilfield Fabrications | Oil rigs, pipelines, and pressure equipment |
| Offshore Cranes | Lifting and material handling at sea |
| Articulated Dump Trucks | Heavy-duty mining and construction trucks |
| Buckets | Excavator and loader buckets |
| Bulldozer Blades | Earthmoving and grading equipment |
| Quarry Screens and Crushers | Stone crushing and screening equipment |
| Quarry Trucks | Heavy haul trucks in mining and quarrying |
| Waste Compaction Equipment | Compactors and recycling machinery |
| Bridges | Structural components and supports |
| Agricultural Equipment | Tractors, plows, harvesters |
| Crane Booms | Crane arms and lifting structures |
| Defence | Military vehicles and armor structures |
| Mechanical Handling | Conveyors, material handling equipment |
