Product Description: 10HSND / S420ML / Q420Q Sheet Steel
10HSND sheet steel (international equivalents S420ML and Q420Q) is a low-alloy high-strength structural steel with enhanced weather resistance. It is designed for operation under variable climatic conditions and is widely used in demanding structural and engineering applications.
General Technical Characteristics
10HSND steel combines high strength, excellent weldability, and resistance to atmospheric corrosion. It maintains its performance during long-term outdoor use and is suitable for harsh environmental conditions.
Key properties:
- high strength
- excellent 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 enhance corrosion resistance.
Mechanical Properties
10HSND steel typically demonstrates:
- yield strength: approximately 390–420 MPa
- high impact toughness
- resistance to deformation
- reliable performance at low temperatures
Applications
10HSND sheet steel is widely used for:
- bridge structures
- building steel structures
- transport infrastructure
- supports and structural frameworks
It is commonly applied in construction, mechanical engineering, and industrial sectors.
Features
Key advantages include:
- enhanced weather resistance
- long service life
- 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 sizes available
The material complies with:
- GOST 19281-2014
- EN 10113 (S420ML)
- GB/T 1591 (Q420Q)
10HSND sheet steel is a reliable solution for structures operating in demanding environmental conditions where strength, durability, and corrosion resistance are essential.
Reviews