LG1100QT Steel Plate — Ultra-High Strength Quenched and Tempered Steel
General Technical Characteristics
LG1100QT steel plate is an ultra-high-strength structural steel produced using quenched and tempered (Q&T) heat treatment. It is designed for the most demanding applications where maximum strength, wear resistance, and reliability are required.
With a yield strength of approximately 1100 MPa, LG1100QT is an ideal choice for critically loaded structures. The plate offers very high strength, good impact toughness, and resistance to deformation. When proper welding procedures are followed, acceptable weldability can be achieved.
Chemical Composition
The chemical composition of LG1100QT steel is engineered to form an ultra-strong and stable structure:
- Carbon (C) — up to 0.22%
- Manganese (Mn) — 1.0–1.8%
- Silicon (Si) — up to 0.70%
- Chromium (Cr) — up to 1.8%
- Nickel (Ni) — up to 2.5%
- Molybdenum (Mo) — up to 0.8%
- Microalloying elements (Nb, V, Ti)
These alloying elements enhance hardenability, strength, and wear resistance.
Mechanical Properties
LG1100QT steel provides the following mechanical properties:
- Yield strength — from 1100 MPa
- Tensile strength — 1200–1400 MPa
- Elongation — 8–12%
- High impact toughness (depending on thickness and temperature)
These characteristics allow the material to perform reliably in extreme service conditions.
Applications
LG1100QT steel plate is used in the most demanding industries:
- heavy and specialized machinery manufacturing
- high-capacity cranes and lifting equipment
- mining and quarry equipment
- defense and special-purpose vehicles
- bridge construction and complex steel structures
It is especially suitable for applications requiring maximum strength with reduced structural weight.
Features
Key advantages of LG1100QT steel:
- ultra-high strength
- high wear resistance
- good impact toughness
- resistance to cracking
- возможность значительного снижения веса конструкции
- long service life even under extreme loads
Standards and Supply Formats
LG1100QT 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 100 mm
Width: up to 2500 mm
Length: upon request
Order LG1100QT Steel Plate Today
We supply high-quality LG1100QT steel plates with guaranteed performance and competitive pricing. Contact us today for consultation, pricing details, and order placement. Choose reliable materials to ensure maximum durability and safety of your structures.
