Looking for ultra-high-strength structural steel that delivers outstanding load capacity while reducing overall project weight? S690 QL Plates are engineered for buyers who demand exceptional strength, reliability, and long-term cost efficiency. Globally trusted for critical structural applications, S690 QL Plates help industries achieve superior performance, faster fabrication, and measurable lifecycle savings.
Why Buyers Prefer S690 QL Plates
Buyers today focus on performance-driven materials that improve design efficiency and reduce total ownership costs. S690 QL steel stands out because it offers very high yield strength combined with excellent toughness and weldability. As a result, buyers can use thinner plates without compromising safety or durability.
Moreover, S690 QL Plates support modern engineering requirements where weight reduction directly translates into lower transportation costs, easier installation, and improved operational efficiency. Consequently, EPC contractors, OEMs, and infrastructure developers consistently specify this grade for demanding projects.
Key buyer-focused advantages include:
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Very high yield strength for heavy-load applications
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Reduced structural weight and optimized designs
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Excellent weldability with controlled procedures
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High toughness, even at low temperatures
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Lower fabrication, transportation, and lifecycle costs
Because of these benefits, S690 QL steel delivers strong ROI across multiple industries.
Technical Specifications of S690 QL Plates
Understanding the technical profile is essential for confident purchasing and application selection. Below is a detailed overview tailored for buyers and engineers.
Chemical Composition (Typical %)
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Carbon (C): Max 0.20
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Manganese (Mn): 0.70 – 1.70
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Silicon (Si): Max 0.80
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Chromium (Cr): Max 1.50
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Nickel (Ni): Max 2.00
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Molybdenum (Mo): Max 0.70
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Vanadium (V): Max 0.12
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Niobium (Nb): Max 0.05
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Titanium (Ti): Max 0.05
This optimized alloy composition ensures high strength, excellent toughness, and reliable weldability.
Mechanical Properties
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Yield Strength: ≥ 690 MPa
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Tensile Strength: 770 – 940 MPa
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Elongation: Min 14%
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Impact Toughness: Excellent at low temperatures (as per EN requirements)
These mechanical properties make S690 QL ideal for safety-critical and load-intensive structures.
Available Forms
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Heavy plates
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Cut-to-size plates
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Customized profiles and fabricated sections (on request)
Applications
S690 QL steel plates are widely used in:
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Bridges and large infrastructure projects
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Cranes, booms, and lifting equipment
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Offshore and marine structures
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Heavy machinery and industrial frames
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Power plants and high-load structural systems
International Standards & Equivalents
S690 QL Plates comply with internationally recognized standards, ensuring smooth approvals and global acceptance:
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UNS: Not Assigned (High-Strength Structural Steel Category)
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ASTM: ASTM A514 equivalent
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ASME: ASME SA 514
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DIN / EN: EN 10025-6 – S690QL
These standards make S690 QL suitable for international tenders and export-oriented projects.
Regional Buyer Demand Focus
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India
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High demand in infrastructure, power, and heavy engineering sectors
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Germany
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Preferred for precision-engineered structures and industrial equipment
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UK
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Widely used in offshore, construction, and energy projects
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UAE
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Strong demand from mega infrastructure and industrial developments
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Why Partner with Vandan Steel & Engg.co
Selecting the right supplier is as important as selecting the right grade. Buyers partner with Vandan Steel & Engg.co because we deliver reliability, transparency, and technical expertise.
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Mill Test Certificates (MTCs) for complete traceability
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Flexible MOQs to suit project-based and stockist requirements
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Strong domestic and international logistics capabilities
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Technical support for material selection and fabrication guidance
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Consistent quality and dependable delivery timelines
We work as a long-term supply partner focused on buyer success and risk reduction.
Get a Competitive Quote Today
If your project requires ultra-high-strength steel with proven performance and international acceptance, S690 QL steel is the smart choice. Strengthen your procurement strategy by working with a trusted and buyer-focused supplier.
Vandan Steel & Engg.co
359 / 373, Flat -9, 2nd Floor, Minerva Mansion, Svp. Road, Khetwadi, Giragoan, Mumbai -400004.
???? +91-8828813630
✉️ [email protected]
Contact us today to discuss your requirements and secure a reliable supply of S690 QL Plates tailored to your engineering and structural needs.