Product Description: 40G / 40Mn Sheet Steel
40G sheet steel (international equivalent 40Mn) is a structural alloy steel with an increased manganese content. This material is widely used in mechanical engineering due to its balanced combination of strength, toughness, and wear resistance. It is suitable for manufacturing components operating under significant mechanical loads.
General Technical Characteristics
40G steel offers good hardenability and the ability to retain its strength after heat treatment. It demonstrates high resistance to impact loads and wear.
Key properties:
- high strength
- good toughness
- wear resistance
- good machinability
Chemical Composition
The chemical composition of 40G steel ensures reliable performance:
- Carbon (C): 0.37–0.45%
- Manganese (Mn): 0.8–1.1%
- Silicon (Si): 0.17–0.37%
- Sulfur (S) and Phosphorus (P): minimal content
Manganese improves strength and enhances hardenability.
Mechanical Properties
After heat treatment, 40G steel typically demonstrates:
- tensile strength: 800–1000 MPa
- high impact toughness
- resistance to deformation
- good wear resistance
Applications
40G sheet steel is used in various industries:
- manufacturing of machine parts
- shafts, gears, axles
- structural components
- load-bearing elements
It is widely applied in mechanical engineering, construction, and industrial production.
Features
Key advantages of 40G steel include:
- balanced combination of strength and toughness
- reliable performance in service
- versatility of application
- good technological properties
Supply Formats and Standards
The steel is supplied in sheet form:
- hot-rolled sheets
- cold-rolled sheets
- various thicknesses and sizes available
The material complies with GOST 4543-71 and has an international equivalent 40Mn.
40G sheet steel is a versatile structural material widely used for producing durable and reliable components across multiple industries.
