Product Description: 10HSND / S355ML / Q345Q Sheet Steel
10HSND sheet steel (international equivalents S355ML and Q345Q) is a low-alloy high-strength structural steel with enhanced weather resistance. It is designed for operation in variable climatic conditions and is widely used in construction and heavy engineering applications.
General Technical Characteristics
10HSND steel is known for its high strength, good weldability, and resistance to atmospheric corrosion. It maintains its performance during long-term outdoor use without the need for additional protective coatings.
Key properties:
- high strength
- good weldability
- corrosion resistance
- resistance to atmospheric exposure
Chemical Composition
The composition includes alloying elements that improve performance:
- Carbon (C): up to 0.12%
- Silicon (Si): up to 0.8%
- Manganese (Mn): 1.0–1.6%
- Chromium (Cr), Nickel (Ni), Copper (Cu): in small amounts
- Sulfur (S) and Phosphorus (P): minimal content
Copper, nickel, and chromium improve corrosion resistance.
Mechanical Properties
10HSND steel typically demonstrates:
- yield strength: 345–355 MPa
- good impact toughness
- resistance to deformation
- reliable performance at low temperatures
Applications
10HSND sheet steel is widely used for:
- bridge structures
- building steel structures
- railway infrastructure
- supports and structural frameworks
It is commonly applied in construction, transport, and industrial sectors.
Features
Key advantages include:
- enhanced weather resistance
- long service life without protective coatings
- high strength with relatively low weight
- excellent weldability
Supply Formats and Standards
The steel is supplied in sheet form:
- hot-rolled sheets
- various thicknesses and formats available
The material complies with:
- GOST 19281-2014
- EN 10113 (S355ML)
- GB/T 1591 (Q345Q)
10HSND sheet steel is a reliable choice for critical structures operating in demanding environmental conditions where strength, durability, and corrosion resistance are essential.
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