naresh@diamondalloysinc.com - GST NO. : 27AQCPC2714K1Z4
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500 Kilogram (MOQ)
| Business Type | Manufacturer, Exporter, Supplier, Retailer, Trader, Distributor, Importer |
| Type | High-Tensile Q&T Structural Steel Plates |
| Thickness | 6 Mm - 100 Mm |
| Length | Up To 12000 Mm |
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Product Details
Product Overview
JFE HITEN 780LE and WELTEN 780E are advanced high-strength quenched and tempered (Q&T) steel plates produced by JFE Steel Corporation, Japan. These plates are engineered for superior strength (minimum yield strength: 780 MPa) while maintaining excellent weldability, toughness, and formability.
Commonly used in construction machinery, cranes, trucks, bridges, mining equipment, and offshore structures, these plates offer performance, weight reduction, and durability in demanding applications.
Key Features
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High strength: ≥ 780 MPa yield
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Excellent weldability without preheating
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Superior toughness at low temperatures
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Lightweight alternative to conventional structural steels
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Excellent for structural, automotive, offshore, and mobile machinery
Specifications
| Manufacturer | JFE Steel Corporation, Japan |
| Type | High-Tensile Q&T Structural Steel Plates |
| Delivery Condition | Quenched and Tempered |
| Yield Strength | ≥ 780 MPa |
| Tensile Strength | 830 – 980 MPa |
| Elongation | ≥ 14% |
| Impact Toughness | ≥ 47 J at -40°C (Charpy V-notch) |
| Thickness | 6 mm – 100 mm |
| Width | 1500 mm – 3000 mm |
| Length | Up to 12000 mm |
| Surface Finish | Mill Finish / Shot Blasted / Primer Coated (Optional) |
Chemical Composition (% max, Typical)
| 0.18 | 0.50 | 1.60 | 0.015 | 0.005 | 0.40 | 0.30 | 1.50 |
Testing & Certification
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Ultrasonic Testing (UT) – as per JIS or EN 10160 standards
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Impact Testing – Charpy V-notch at -40°C
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Hardness Testing – Typically 220–290 HBW
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Mechanical & Chemical Analysis
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Third-party Inspection – TUV, DNV, Lloyd’s, SGS (on request)
Applications
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Crane booms and lifting arms
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Dump truck bodies and trailers
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Mining and earthmoving machinery
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Offshore oil platforms and jack-up rigs
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Welded bridges and structural frameworks
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Heavy-duty industrial equipment and chassis
Advantages over Conventional Steel
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Weight savings of up to 30% over mild steel
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Higher load capacity and fatigue resistance
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Improved fuel efficiency in mobile applications
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Lower fabrication cost due to reduced thickness needs
Certifications & Documentation
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JFE Mill Test Certificate – EN 10204 3.1 / 3.2
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Impact and Hardness Test Reports
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Ultrasonic Test Report
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Chemical and Physical Property Reports
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Third-party QA/QC and export documentation available
