About material
X19CrMoNbVN11-1+QT / 1.4913 – High-Strength, Heat-Resistant Alloy Steel for Extreme Temperature and Pressure Applications
X19CrMoNbVN11-1+QT, also known as 1.4913, is a specialized alloy steel that has been quenched and tempered (QT) to provide exceptional strength, heat resistance, and stability under extreme conditions. Its unique composition includes chromium, molybdenum, niobium, vanadium, and nitrogen, making it ideal for applications in the power generation, petrochemical, and industrial processing industries, where performance under high temperatures and pressures is critical.
Properties of X19CrMoNbVN11-1+QT
X19CrMoNbVN11-1+QT is valued for its:
- High-Temperature Strength and Creep Resistance – This alloy maintains structural integrity and resists creep in high-stress, high-temperature environments, making it ideal for demanding applications.
- Excellent Oxidation and Corrosion Resistance – With its alloying elements, it offers reliable resistance to oxidation and corrosion, even in aggressive environments.
- Enhanced Toughness and Stability – The QT treatment provides high toughness and dimensional stability, ensuring reliability under thermal cycling and stress loads.
Applications of X19CrMoNbVN11-1+QT
Due to its advanced properties, X19CrMoNbVN11-1+QT is widely applied in:
- Power Generation Equipment – Perfect for turbine blades, boiler components, and heat exchangers where long-term resistance to high heat and creep is essential.
- Petrochemical and Chemical Processing – Suitable for reactors, piping, and other critical components exposed to corrosive chemicals and high temperatures.
- Industrial Machinery – Commonly used in heavy-duty machinery parts that experience thermal stress and require both strength and corrosion resistance.
WTE PowerSteel is a trusted global stockist and distributor of X19CrMoNbVN11-1+QT, delivering this high-performance alloy to industries worldwide. With a commitment to quality and technical expertise, WTE PowerSteel provides guidance in selecting and processing X19CrMoNbVN11-1+QT for extreme applications. Contact us to learn more about our worldwide distribution and the advantages of X19CrMoNbVN11-1+QT for your critical projects.
Bar 1.4913 / X19CrMoNbVN11-1+QT
Round Bar 1.4913 / X19CrMoNbVN11-1+QT
Hot Rolled Bar 1.4913 / X19CrMoNbVN11-1+QT
Chemical Composition
The composition of 1.4913 / X19CrMoNbVN11-1+QT is optimized for high-temperature strength and corrosion resistance:
| Element |
Percentage (%) |
| Carbon (C) |
0.08 – 0.15 |
| Silicon (Si) |
0.50 max |
| Manganese (Mn) |
0.30 max |
| Chromium (Cr) |
19.0 – 21.0 |
| Molybdenum (Mo) |
0.50 – 0.80 |
| Niobium (Nb) |
0.05 – 0.15 |
| Vanadium (V) |
0.05 – 0.15 |
| Phosphorus (P) |
0.025 max |
| Sulfur (S) |
0.015 max |
Mechanical Properties (at Room Temperature)
| Property |
Typical Value |
| Density |
7.85 g/cm³ |
| Tensile Strength |
900- 1050 MPa |
| Yield Strength (0.2% offset) |
min. 750- MPa |
| Elongation at Break |
min 12% |
| Hardness |
280 – 320 HB |
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Heat Treatment
X19CrMoNbVN11-1 typically undergoes quenching and tempering processes, with tempering temperatures generally in the range of 600°C to 700°C to achieve desired mechanical properties and stress relief.
Corrosion Resistance
1.4913 offers good resistance to oxidation and corrosion in high-temperature environments, making it suitable for applications in power generation and turbine components.
Key Performance Features
- High Temperature Strength: Retains excellent strength and hardness at elevated temperatures, making it ideal for turbine blades and heat exchangers.
- Thermal Fatigue Resistance: The alloy’s composition helps it withstand thermal cycling without degradation.
- Versatile Applications: Commonly used in power plants, chemical processing, and heavy machinery.
- Good Machinability: Can be machined and welded using standard techniques, allowing for complex component fabrication.
In summary, 1.4913 / X19CrMoNbVN11-1+QT is a superior choice for applications requiring high strength, durability, and resistance to thermal fatigue, making it essential in industries where performance and reliability are critical.
