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2Cr12NiMo1W1V alloy steel is an advanced Cr-Ni-Mo-W-V heat-resistant steel engineered for ultra-high temperature, high-pressure, and critical load applications.
Nickel (Ni) improves toughness and corrosion resistance
Molybdenum (Mo) and Tungsten (W) enhance creep and thermal stability
Vanadium (V) strengthens the steel through grain refinement
It is widely used in steam turbine rotors, high-pressure shafts, large forgings, and critical structural components, providing long-term reliability under extreme conditions.
Technical Specifications
➤ Standard
GB/T Alloy Structural Steel
Applicable for DIN / EN equivalents
➤ Available Forms
Forged Rotors & Shafts
Heavy Bars / Forgings
CNC Machined Components
Chemical Composition (Typical)
| Element | Content (%) |
|---|---|
| C | 0.12 – 0.20 |
| Cr | 11.0 – 13.0 |
| Ni | 3.0 – 5.0 |
| Mo | 0.8 – 1.2 |
| W | 0.8 – 1.2 |
| V | 0.15 – 0.30 |
| Si | ≤ 0.50 |
| Mn | ≤ 0.70 |
| P | ≤ 0.025 |
| S | ≤ 0.015 |
| Fe | Balance |
Key Features & Advantages
✅ Ultra-High Temperature Strength
Suitable for rotor shafts, steam turbines, and high-pressure equipment
✅ Excellent Creep Resistance
Maintains mechanical properties in prolonged high-temperature service
✅ Thermal Stability & Toughness
Nickel + Tungsten + Vanadium → improved toughness and grain refinement
✅ Corrosion & Oxidation Resistance
Chromium and Nickel content enhances oxidation resistance at elevated temperatures
Comparison Guide – 2Cr12NiMo1W1V vs 2Cr12NiMo1W vs 12Cr1MoV
| Property | 2Cr12NiMo1W1V | 2Cr12NiMo1W | 12Cr1MoV |
|---|---|---|---|
| Alloy Type | Cr-Ni-Mo-W-V | Cr-Ni-Mo-W | Cr-Mo-V |
| Strength | Very High | High | Medium |
| Creep Resistance | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐⭐ |
| Oxidation Resistance | ⭐⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐ |
| Temperature Capability | 550–600°C | 500–550°C | 500°C |
| Application | Turbines / Shafts | High Temp Rotors | Boiler Pipes |
👉 Key Insight:
2Cr12NiMo1W1V → highest performance for high-temperature rotors & critical shafts
12Cr1MoV → conventional boiler and pipe applications
Applications
⚡ Power Generation
Steam turbine rotors and generator shafts
Supercritical and ultra-supercritical power units
High-temperature, high-pressure shafts
🏭 Heavy Industrial Applications
Large forged shafts
Pressure-bearing machinery
High-load rotating components
Inspection & Quality Assurance
Chemical Composition Analysis (PMI)
Mechanical Testing (Tensile, Yield, Elongation)
Ultrasonic Testing (UT)
Hardness & Impact Testing
Metallographic Analysis
Product Delivery Standards
Heavy-duty export packaging
Anti-corrosion coating
Heat number traceability
EN 10204 3.1 / 3.2 certificates
FAQ
1. What is 2Cr12NiMo1W1V alloy steel used for?
It is used for high-temperature rotors, heavy shafts, and critical load-bearing components in power plants and heavy industry.
2. How does 2Cr12NiMo1W1V differ from 12Cr1MoV?
Higher Nickel, Molybdenum, Tungsten, and Vanadium content
Improved creep resistance, high-temperature strength, and oxidation resistance
Better long-term service performance
3. Is 2Cr12NiMo1W1V suitable for turbine rotors?
Yes, it is one of the preferred steels for supercritical turbine rotors.
4. What is the service temperature?
Reliable up to 550–600°C, depending on operating conditions.
5. What heat treatment is required?
Quenching
Tempering
Ensures optimal hardness, strength, and toughness.
6. What role does tungsten (W) play?
Enhances creep resistance and high-temperature strength
7. What role does nickel (Ni) play?
Improves toughness and corrosion resistance
8. Available forms?
Forged rotors and shafts
Heavy bars
Custom CNC machined components
9. Which industries use this steel?
Power generation
Heavy machinery
Petrochemical / chemical industry
Contact Us
Looking for 2Cr12NiMo1W1V Alloy Steel Forgings, Rotors, or Shafts?
We provide:
Factory-direct pricing
Custom heavy forging solutions
Fast global delivery
Technical support for supercritical turbine projects
👉 Contact us for quotation, datasheet, and engineering consultation.
+8615769214734
office@dongmjd.com
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