Product Description: Steel Round Bar M-50 / 1.3551 / 80MoCrV42-16
Steel round bar M50 (1.3551, 80MoCrV42-16) is a high-alloy tool and bearing steel designed for operation under high temperatures and heavy loads. The material is widely used in the aerospace industry for manufacturing high-speed bearings and critical components.
General Technical Characteristics
M50 steel is characterized by high hardness, excellent wear resistance, and the ability to retain its properties at elevated temperatures. It ensures stable performance under conditions of intense friction and high rotational speeds.
Key properties:
- high hardness
- excellent wear resistance
- heat resistance
- structural stability at elevated temperatures
Chemical Composition
The composition includes alloying elements that provide its performance:
- Carbon (C): approx. 0.75–0.85%
- Chromium (Cr): 3.75–4.25%
- Molybdenum (Mo): 4.0–4.5%
- Vanadium (V): 1.0–1.3%
- Manganese (Mn) and Silicon (Si): in small amounts
High molybdenum content enhances heat resistance and wear resistance.
Mechanical Properties
After heat treatment, the steel typically demonstrates:
- hardness: up to 60–65 HRC
- high wear resistance
- resistance to deformation
- retention of properties at high temperatures
Applications
M50 steel round bar is used for manufacturing:
- high-speed bearings
- aerospace components
- spindles
- parts operating under high temperature and load conditions
It is widely applied in aerospace and mechanical engineering industries.
Features
Key advantages include:
- high thermal stability
- excellent wear resistance
- reliability at high speeds
- long service life
Supply Formats and Standards
The material is supplied as round bar:
- hot-rolled bars
- ground or calibrated bars
- various diameters available
The steel complies with:
- AMS 6491 (M50)
- EN ISO 4957 (1.3551 / 80MoCrV42-16)
Steel round bar M50 is an excellent choice for producing high-load and high-speed components where wear resistance, heat resistance, and reliability are essential.
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