Looking for high-strength structural steel that delivers superior performance in demanding construction and engineering applications? S690 QL Plates are engineered to meet the highest standards of toughness, weldability, and fatigue resistance. Buyers across infrastructure, heavy machinery, and construction sectors consistently choose S690 QL Plates because they combine exceptional yield strength with reliable formability, ensuring efficiency and safety in every project.
Why Buyers Prefer S690 QL Plates
When large-scale projects demand both strength and precision, S690 QL Plates stand out as a preferred choice. These plates offer a combination of high yield strength and excellent toughness, making them ideal for demanding structural applications. Buyers rely on S690 QL Plates to optimize design while reducing material weight, which lowers overall construction costs.
Key advantages include:
-
High yield strength of 690 MPa for superior load-bearing capacity
-
Excellent weldability and toughness for safe fabrication
-
Reduced steel consumption due to strength-to-weight efficiency
-
Enhanced fatigue resistance for long-term reliability
-
Uniform mechanical properties across plate thickness
-
Suitable for cutting, drilling, and forming operations
-
Ideal for demanding structural and engineering projects
These benefits make S690 QL Plates a go-to choice for engineers and procurement professionals aiming for performance, safety, and cost-efficiency.
Technical Specifications of S690 QL Plates
To ensure optimal performance, buyers should understand the detailed technical specifications of S690 QL Plates.
Chemical Composition (Typical %)
-
Carbon (C): 0.16 max
-
Manganese (Mn): 1.50 max
-
Silicon (Si): 0.55 max
-
Phosphorus (P): 0.025 max
-
Sulfur (S): 0.025 max
-
Nitrogen (N): 0.012 max
-
Vanadium (V): 0.10 – 0.20
-
Niobium (Nb): 0.05 – 0.12
-
Titanium (Ti): 0.02 – 0.05
This carefully controlled composition ensures high strength without compromising weldability and toughness.
Mechanical Properties
-
Yield Strength (MPa): ≥ 690
-
Tensile Strength (MPa): 740 – 900
-
Elongation (%): ≥ 12
-
Impact Toughness (J): 27 @ -40°C
Available Forms
-
Hot-rolled structural plates
-
Cut-to-size plates
-
Precision-machined plates for fabrication
Applications
S690 QL Plates are widely used in projects where high structural performance is critical:
-
Bridges and heavy infrastructure projects
-
Offshore and onshore construction
-
High-rise building frameworks
-
Crane and heavy machinery components
-
Shipbuilding and maritime structures
-
Transmission towers and steel frameworks
International Standards & Equivalents
S690 QL Plates meet rigorous international standards, ensuring consistency and global acceptance:
-
UNS: No direct UNS designation (structural steel category)
-
ASTM: Equivalent to ASTM A709 Grade 690
-
ASME: ASME SA709 Grade 690
-
DIN / EN: EN 10025-6 S690QL
Compliance with these standards ensures buyers receive reliable, certified steel for critical applications.
Regional Buyer Focus
-
India: Widely used in bridges, high-rise construction, and heavy engineering
-
Germany: Preferred in automotive and heavy structural applications
-
UK: Used in offshore platforms, construction, and machinery
-
UAE: High demand in infrastructure, ports, and oil & gas sectors
Why Buyers Should Partner with Vandan Steel & Engg.co
Choosing the right supplier is crucial for project success. Vandan Steel & Engg.co provides unmatched support and service for buyers sourcing S690 QL Plates:
-
Mill Test Certificates (MTCs) for full traceability and quality assurance
-
Flexible MOQs for small, medium, or bulk orders
-
Efficient logistics for domestic and international deliveries
-
Expert technical support for welding, cutting, and fabrication
-
Competitive pricing with reliable supply timelines
Partnering with Vandan Steel & Engg.co ensures consistent quality, timely delivery, and expert guidance for all structural steel requirements.
Secure Your S690 QL Plates Supply Today
For structural projects that demand strength, toughness, and precision, S690 QL Plates offer unmatched performance. Buy with confidence from a trusted supplier who delivers quality, expertise, and global reach.
Vandan Steel & Engg.co
359 / 373, Flat -9, 2nd Floor, Minerva Mansion, Svp. Road, Khetwadi, Giragoan, Mumbai -400004
???? +91-8828813630
✉️ [email protected]
Contact us now to source premium S690 QL Plates tailored to your structural and engineering needs.