Product Description: U10 / U10A / SK95 / SK4 Sheet Steel
U10 and U10A sheet steel (international equivalents SK95 and SK4) are high-carbon tool steels known for their high hardness, good wear resistance, and ability to retain working properties after heat treatment. These materials are widely used for manufacturing tools and components operating under friction and moderate loads.
General Technical Characteristics
U10 / U10A steels are used for producing cutting and measuring tools, as well as parts requiring increased hardness. After quenching and tempering, the material achieves high strength and wear resistance.
Key properties:
- high hardness
- good wear resistance
- sufficient strength
- good hardenability
Chemical Composition
The chemical composition defines the performance characteristics:
- Carbon (C): 0.95–1.04%
- Manganese (Mn): 0.15–0.40%
- Silicon (Si): 0.15–0.35%
- Sulfur (S) and Phosphorus (P): minimal content
The high carbon content ensures hardness and wear resistance.
Mechanical Properties
After heat treatment, U10 / U10A steel typically demonstrates:
- hardness: up to 60–63 HRC
- good wear resistance
- sufficient strength
- moderate impact toughness
Applications
U10 / U10A sheet steel is used for manufacturing:
- cutting tools
- knives and blades
- measuring instruments
- dies and press molds
It is commonly applied in tool manufacturing and metalworking industries.
Features
Key advantages include:
- high hardness after heat treatment
- good wear resistance
- versatility of use
- stable performance in operation
Supply Formats and Standards
The steel is supplied in sheet form:
- hot-rolled sheets
- cold-rolled sheets
- various sizes and thicknesses available
The material complies with GOST 1435-99 and international standard JIS G4401 (SK4, SK95).
U10 / U10A sheet steel is a practical choice for applications requiring a combination of hardness, wear resistance, and reliability.
