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1Cr11Ni2W2MoV Stainless Steel: High-Performance Alloy from China Suppliers & Factory for Aerospace Manufacturing
Core Features
1. Excellent high temperature strength and toughness
It can maintain high strength and stability in an environment below 600°C, with a room temperature tensile strength of 885–1080 MPa, a yield strength of 735–885 MPa, and an elongation of 12%–15%.
Tungsten (W) and molybdenum (Mo) elements strengthen and refine grains through solid solution, while vanadium (V) microalloying inhibits high-temperature creep, ensuring that the material still has a high fatigue life under thermal cycling stress.
2. Excellent corrosion resistance and oxidation resistance
The high chromium content (10.50%–12.00%) forms a dense Cr₂O₃ oxide film that is resistant to fresh water, wet atmosphere, and weak acid and alkali corrosion.
It is "completely resistant to oxidation" (oxidation weight gain rate <0.1 g/m²·h) in air at 700°C and is suitable for high-temperature oxidation environments.
3. Optimized process performance
The electroslag remelting process ensures extremely low impurity content (S≤0.025%, P≤0.030), improving material purity and lateral mechanical properties.
It supports welding (TIG/MIG), forging and machining, and its annealed hardness ranges from HB 197 to 269, making it easy to form complex components.
4. Flexible heat treatment adaptability
Performance customization can be achieved through differentiated tempering systems:
High toughness requirement: Tempering at 660–710°C → impact energy ≥ 71 J, hardness HB 269–321.
High strength requirements: Tempering at 540–590°C → tensile strength ≥1080 MPa, hardness HB 311–388.
Application Areas
1. Aerospace: engine compressor blades, turbine discs, shafts and fasteners, subject to tens of thousands of cycle loads.
2. Energy equipment: gas turbine combustion chamber liners, nuclear power plant heat transfer tubes, high temperature and high pressure corrosion resistance.
3. Chemical industry and shipbuilding: pumps, valves, reactor components (non-seawater environment), replacing high-cost nickel-based alloys.
Summary
1Cr11Ni2W2MoV, with its balanced combination of high strength, high-temperature resistance, and corrosion resistance, has become a core material for high-end equipment manufacturing. Its electroslag remelting process further ensures its reliability, making it suitable for demanding applications such as aviation, energy, and military. Choosing 1Cr11Ni2W2MoV means choosing the perfect combination of superior performance and long-term stability!
Frequently Asked Questions (FAQ)
Q: What is the temperature limit for 1Cr11Ni2W2MoV steel?
1Cr11Ni2W2MoV steel maintains excellent strength and stability in environments below 600°C. Additionally, it is completely resistant to oxidation in air temperatures up to 700°C, with an oxidation weight gain rate of less than 0.1 g/m²·h.
Q: What are the mechanical properties of 1Cr11Ni2W2MoV under room temperature?
At room temperature, this material displays a tensile strength of 885–1080 MPa, a yield strength of 735–885 MPa, and an elongation rate of 12%–15%.
Q: How does electroslag remelting improve the quality of 1Cr11Ni2W2MoV?
The electroslag remelting process ensures extremely low impurity content (Sulfur ≤ 0.025%, Phosphorus ≤ 0.030%). This significantly enhances the material purity and improves its lateral mechanical properties.
Q: Can 1Cr11Ni2W2MoV be customized for different toughness and strength requirements?
Yes, performance can be customized using differentiated tempering systems. High toughness requirements can be met by tempering at 660–710°C (impact energy ≥ 71 J, hardness HB 269–321). High strength requirements can be achieved by tempering at 540–590°C (tensile strength ≥1080 MPa, hardness HB 311–388).
Q: In what industries is 1Cr11Ni2W2MoV steel commonly applied?
It is widely used in aerospace (engine compressor blades, turbine discs, shafts, fasteners), energy equipment (gas turbine combustion chamber liners, nuclear power plant heat transfer tubes), and chemical or shipbuilding applications (pumps, valves, reactor components in non-seawater environments).