S690QL / S690QL1 High Strength Structural Steel – Nifty Alloys LLC
When your project demands exceptional strength, durability, and reliability, S690QL and S690QL1 high-strength structural steels deliver unmatched performance.
These grades belong to the EN 10025-6 standard and are widely used in heavy engineering, offshore structures, and construction where weight reduction and load-bearing capacity are critical.
At Nifty Alloys LLC, we are a trusted supplier and stockist of S690QL and S690QL1 steel plates, serving clients across the UAE and exporting worldwide. Our inventory includes a wide range of thicknesses, sizes, and specifications to meet diverse project requirements.
Both S690QL and S690QL1 steels are quenched and tempered (Q&T) structural steels known for their high yield strength (690 MPa minimum), superior impact resistance, and excellent weldability. The key difference lies in their impact testing temperatures — S690QL is tested at -40°C, while S690QL1 is tested at -60°C, making it ideal for colder environments.
Key Properties and Characteristics
S690QL and S690QL1 steels are engineered for demanding applications. You can rely on them for consistent strength and performance under extreme conditions.
Main Characteristics:
- High yield strength (minimum 690 MPa)
- Excellent toughness and ductility
- Superior impact resistance at low temperatures
- Good weldability and formability
- Consistent thickness and dimensional accuracy
- Enhanced fatigue resistance
- Designed for weight reduction in structural applications
These properties make S690QL / S690QL1 the preferred choice for high-performance structures where both strength and weight efficiency matter.
Advantages of Using S690QL / S690QL1 Steel
- Weight Reduction: Allows thinner sections without loss of strength.
- High Load-Bearing Capacity: Handles heavy loads and dynamic stress efficiently.
- Improved Fatigue Life: Excellent resistance to cyclic loading.
- Enhanced Durability: Performs reliably in harsh, cold, or corrosive environments.
- Cost Efficiency: Lower fabrication and transportation costs due to reduced weight.
- Consistent Quality: Manufactured to strict European standards (EN 10025-6).
Applications of S690QL / S690QL1 steels
Forming of S690QL / S690QL1 Steel
Welding of S690QL / S690QL1 Steel
Mechanical Properties of S690QL / S690QL1
Typical Impact Properties
Equivalent Grades of S690QL / S690QL1 steels
Chemical Composition of S690QL / S690QL1 Steel
Elevate Your Projects
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Our Superior Steels
Nifty Alloys LLC supplies high-strength quenched and tempered steel plates that meet EN 10025-6 standards. We serve clients across the UAE, Middle East, Europe, Asia, and Africa, offering certified steel with reliable delivery and full traceability. You’ll get: Ready stock of S690QL and S690QL1 plates in various thicknesses and dimensions, Mill test certificates (EN 10204 3.1 / 3.2), Customized cutting, testing, and inspection options
Whether you’re building bridges, offshore platforms, or heavy machinery, our S690QL / S690QL1 steel plates deliver the strength and durability your project demands.We ensure quality materials, prompt service, and global delivery — making us your reliable partner for steel solutions.
