naresh@diamondalloysinc.com - GST NO. : 27AQCPC2714K1Z4
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500 Kilogram (MOQ)
| Business Type | Manufacturer, Exporter, Supplier, Retailer, Trader, Distributor, Importer |
| Material | Quenched And Tempered Structural Steel |
| Application | Crane Booms,Lifting Equipment,Mobile Trailers And Tipper Trucks,Mining Dump Bodies And Excavators,Structural Bridges And Offshore Platforms,Wind Towers And Transmission Structures,Heavy-duty Machinery And Pressure Components |
| Certification | Mill Test Certificates - EN 10204 3.1 / 3.2 |
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Product Details
Product Overview
Q&T 700 Plates are high-strength quenched and tempered structural steel plates with a minimum yield strength of 700 MPa, designed for demanding structural and load-bearing applications. The quenching and tempering heat treatment process enhances the steel’s tensile strength, toughness, and hardness, while maintaining good formability and weldability.
These plates are widely used in the construction, mining, heavy machinery, transportation, offshore, and energy sectors, especially in applications that require high performance and reduced weight.
Key Features
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Minimum yield strength of 700 MPa
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Excellent strength-to-weight ratio
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Good toughness at low temperatures
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Superior wear resistance and impact strength
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Suitable for structural, automotive, and offshore applications
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Good weldability and machinability (with preheating for thick sections)
Specifications
| Standard | Often aligned with EN 10025-6 / ASTM A514 equivalents |
| Grade | Q&T 700 / Equivalent to S690QL, A514 Grade Q |
| Condition | Quenched and Tempered (Q+T) |
| Thickness | 6 mm – 150 mm |
| Width | 1000 mm – 3000 mm |
| Length | 3000 mm – 12000 mm |
| Surface Finish | Mill Finish / Shot Blasted / Painted |
| Minimum Order Qty | 10 Metric Tons |
| Delivery Time | 7 – 15 Working Days |
Mechanical Properties (Typical)
| Yield Strength | ≥ 700 MPa |
| Tensile Strength | 780 – 930 MPa |
| Elongation | ≥ 14% |
| Impact Toughness | ≥ 27 J at -40°C (Charpy V-notch) |
| Hardness (BHN) | 240 – 320 (varies with thickness) |
Chemical Composition (Typical %)
| 0.18 | 1.60 | 0.50 | 0.020 | 0.010 | 0.50 | 0.30 | 1.50 | 0.005 |
(Values may vary depending on specific grade or standard.)
Testing & Quality Assurance
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Ultrasonic Testing (UT) – EN 10160 / ASTM A578
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Impact Testing – Charpy V-Notch at -40°C
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Tensile and Bend Tests
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Hardness and Chemical Analysis
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Third-Party Inspection – TUV, DNV, Lloyds, SGS (on request)
Applications
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Crane booms, lifting equipment
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Mobile trailers and tipper trucks
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Mining dump bodies and excavators
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Structural bridges and offshore platforms
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Wind towers and transmission structures
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Heavy-duty machinery and pressure components
Certifications & Documentation
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Mill Test Certificates – EN 10204 3.1 / 3.2
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Heat Treatment Records
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Impact and Mechanical Test Reports
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Third-party inspection reports (on request)
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Traceability and compliance documentation
