Product Description: U12 / SK120 / SK2 Sheet Steel
U12 sheet steel (international equivalents SK120 and SK2) is a high-carbon tool steel known for its high hardness, excellent wear resistance, and ability to retain cutting performance after heat treatment. This material is widely used in the production of tools and components that require high strength and resistance to wear.
General Technical Characteristics
U12 steel is designed for manufacturing cutting and measuring tools, as well as parts operating under friction and wear conditions. After quenching and tempering, the material achieves high hardness and strength.
Key properties:
- high hardness
- excellent wear resistance
- good hardenability
- retention of cutting performance
Chemical Composition
The chemical composition ensures strong performance characteristics:
- Carbon (C): 1.15–1.24%
- Manganese (Mn): 0.15–0.40%
- Silicon (Si): 0.15–0.35%
- Sulfur (S) and Phosphorus (P): minimal content
The high carbon content provides hardness and wear resistance.
Mechanical Properties
After proper heat treatment, U12 steel demonstrates:
- hardness: up to 62–65 HRC
- high wear resistance
- good strength under static loads
- relatively low impact toughness
Applications
U12 sheet steel is widely used for manufacturing:
- cutting tools
- knives and blades
- measuring instruments
- dies and simple molds
It is commonly applied in tool manufacturing and metalworking industries.
Features
Key advantages of U12 steel include:
- high hardness after heat treatment
- excellent wear resistance
- availability and versatility
- 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 (SK2, SK120).
U12 sheet steel is a reliable choice for applications where high hardness and wear resistance are essential.
