LG1300QT Steel Plate — Ultra-High Strength Quenched and Tempered Steel
General Technical Characteristics
LG1300QT steel plate is an ultra-high-strength structural steel produced through quenched and tempered (Q&T) heat treatment. It is designed for extreme service conditions where maximum strength, wear resistance, and reliability are required.
With a yield strength of approximately 1300 MPa, LG1300QT is one of the strongest solutions for critically loaded structures. The plate offers exceptional strength, good impact toughness, and high resistance to deformation. With proper welding procedures, limited but feasible weldability can be achieved.
Chemical Composition
The chemical composition of LG1300QT steel is engineered to form an extremely strong and stable structure:
- Carbon (C) — up to 0.25%
- Manganese (Mn) — 1.2–1.9%
- Silicon (Si) — up to 0.80%
- Chromium (Cr) — up to 2.0%
- Nickel (Ni) — up to 3.0%
- Molybdenum (Mo) — up to 0.9%
- Microalloying elements (Nb, V, Ti)
The increased alloying content ensures maximum strength, hardenability, and wear resistance.
Mechanical Properties
LG1300QT steel provides the following mechanical properties:
- Yield strength — from 1300 MPa
- Tensile strength — 1350–1600 MPa
- Elongation — 7–10%
- Impact toughness — stable under controlled service conditions
These properties make the material highly effective under extreme loading conditions.
Applications
LG1300QT steel plate is used in the most demanding industries:
- heavy and specialized machinery manufacturing
- ultra-heavy lifting equipment production
- mining and quarry machinery
- defense industry and special-purpose vehicles
- complex engineering and steel structures
It is particularly suitable for applications where minimum weight and maximum strength are critical.
Features
Key advantages of LG1300QT steel:
- extremely high strength
- enhanced wear resistance
- adequate impact toughness
- resistance to deformation
- possibility of significant weight reduction in structures
- high reliability during long-term operation
Standards and Supply Formats
LG1300QT steel plate is supplied in accordance with international standards (EN, ASTM, GB, or manufacturer specifications).
Available supply formats:
- hot-rolled plates after quenching and tempering
- heavy (thick) plates
- standard sheet sizes
- custom cutting according to drawings
Thickness: from 6 to 80 mm
Width: up to 2500 mm
Length: upon request
Order LG1300QT Steel Plate Today
We supply high-quality LG1300QT steel plates with guaranteed performance and compliance with the highest technical requirements. Contact us today for consultation, pricing, and order placement. Choose materials that ensure maximum strength and reliability for your projects.
