Product Description: Steel Round Bar 15Kh12N2MVFAB / EP517
Steel round bar 15Kh12N2MVFAB (EP517) is a heat-resistant corrosion-resistant martensitic steel designed for operation under high temperatures and severe mechanical loads. The material is characterized by high strength, resistance to thermal fatigue, and good heat resistance, making it widely used in power generation, aerospace, and mechanical engineering industries.
General Technical Characteristics
Steel 15Kh12N2MVFAB / EP517 offers high mechanical strength, resistance to thermal stress, and structural stability during prolonged heating. The material performs effectively under cyclic loading and elevated temperature conditions.
Key properties:
- high heat resistance
- good corrosion resistance
- oxidation resistance
- structural stability at elevated temperatures
Chemical Composition
The steel contains:
- Iron (Fe): base element
- Chromium (Cr): approx. 11–13%
- Nickel (Ni): approx. 1.5–2.5%
- Molybdenum (Mo): up to 1%
- Tungsten (W): approx. 1–2%
- Vanadium (V): added for improved heat resistance
- Niobium (Nb): added for increased strength
- Carbon (C): approx. 0.15%
This composition provides high strength and thermal stability.
Mechanical Properties
The steel demonstrates:
- high strength at elevated temperatures
- resistance to thermal fatigue
- good creep resistance
- reliability during long-term service
Applications
Steel round bar 15Kh12N2MVFAB / EP517 is used for manufacturing:
- turbine components
- shafts and discs
- fastening elements
- power generation equipment parts
- heavily loaded components
The material is widely applied in aerospace, energy, and mechanical engineering industries.
Features
Key advantages include:
- high heat resistance
- good oxidation resistance
- stable mechanical properties
- long service life
Supply Formats and Standards
The material is supplied as:
- steel round bars
- bars
- forgings
- billets
Manufactured according to technical specifications for EP517 / 15Kh12N2MVFAB steel.
Steel round bar 15Kh12N2MVFAB (EP517) is a reliable material for manufacturing components operating under high temperature and load conditions, where strength, heat resistance, and durability are essential.




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