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2Cr12MoVA alloy steel is a martensitic heat-resistant alloy steel widely used in high-temperature and high-pressure environments, especially in power generation and boiler systems. With a balanced composition of chromium (Cr), molybdenum (Mo), and vanadium (V), this steel delivers excellent high-temperature strength, oxidation resistance, and creep resistance.
It is commonly applied in steam turbine components, boiler parts, pressure vessels, and structural components requiring long-term stability under elevated temperatures.
Technical Specifications
➤ Standard
GB/T Alloy Structural Steel
➤ Available Forms
Steel Plate
Forged Round Bar
Flat Bar
Custom Machined Components
Chemical Composition (Typical)
| Element | Content (%) |
|---|---|
| C | 0.10 – 0.16 |
| Cr | 11.0 – 13.0 |
| Mo | 0.30 – 0.60 |
| V | 0.20 – 0.30 |
| Si | ≤ 0.50 |
| Mn | ≤ 0.60 |
| Fe | Balance |
Key Features & Advantages
✅ Excellent High-Temperature Strength
Maintains strength under 500–600°C working conditions
✅ Good Oxidation Resistance
Chromium provides stable oxide layer protection
✅ Creep Resistance Performance
Suitable for long-term high-temperature service
✅ Good Hardenability
Martensitic structure ensures mechanical strength
Comparison Guide – 2Cr12MoVA vs 12Cr1MoV vs 15CrMo
| Property | 2Cr12MoVA | 12Cr1MoV | 15CrMo |
|---|---|---|---|
| Alloy Type | Martensitic | Low alloy | Low alloy |
| Temperature Resistance | High (500–600°C) | Medium | Medium |
| Strength | High | Medium | Medium |
| Oxidation Resistance | Excellent | Good | Good |
| Application | Turbine / Boiler | Pipes | Pressure vessels |
Key Insight:
2Cr12MoVA is preferred for higher temperature & strength applications
12Cr1MoV / 15CrMo are more cost-effective for pipelines and general pressure use
Applications
⚡ Power Generation Industry
Steam turbine blades
Boiler components
High-pressure valves
🏭 Industrial Equipment
Heat-resistant structural parts
High-temperature fasteners
Inspection & Quality Assurance
Chemical Composition Analysis
Mechanical Property Testing
Ultrasonic Testing (UT)
Hardness Testing
Metallographic Examination
Product Delivery Standards
Export seaworthy packaging
Anti-rust protection
Heat number traceability
EN 10204 3.1 / 3.2 certification
FAQ
1. What is 2Cr12MoVA alloy steel?
2Cr12MoVA is a martensitic heat-resistant alloy steel containing chromium, molybdenum, and vanadium, designed for high-temperature and high-pressure applications such as power plant components and boilers.
2. What is the maximum service temperature of 2Cr12MoVA?
2Cr12MoVA typically operates reliably at temperatures up to 500–600°C, depending on the specific working conditions and heat treatment.
3. What are the main advantages of 2Cr12MoVA steel?
High-temperature strength
Good oxidation resistance
Excellent creep resistance
Stable performance in long-term service
4. What industries commonly use 2Cr12MoVA?
It is widely used in:
Power generation (steam turbines, boilers)
Petrochemical equipment
High-temperature structural components
5. How does 2Cr12MoVA compare to 12Cr1MoV steel?
2Cr12MoVA offers:
Higher strength
Better oxidation resistance
Improved performance at elevated temperatures
While 12Cr1MoV is more commonly used for pipes and general boiler applications.
6. What is the difference between 2Cr12MoVA and 15CrMo?
2Cr12MoVA: Higher alloy content, better for high-temperature and critical components
15CrMo: More economical, suitable for medium-temperature pressure systems
7. Is 2Cr12MoVA stainless steel?
No. Although it contains chromium, it is classified as a martensitic alloy steel, not stainless steel, and does not provide the same corrosion resistance as stainless grades.
8. What forms are available for 2Cr12MoVA steel?
Steel plates
Forged bars
Round bars
Custom-machined components
9. What heat treatment is required for 2Cr12MoVA?
Typical heat treatment includes:
Quenching
Tempering
This process ensures optimal mechanical strength and microstructure stability.
10. What role does vanadium (V) play in 2Cr12MoVA?
Vanadium improves:
Grain refinement
Creep resistance
High-temperature strength
11. Is 2Cr12MoVA suitable for welding?
Yes, but it requires:
Preheating
Post-weld heat treatment (PWHT)
to prevent cracking and maintain performance.
12. What inspections are required for 2Cr12MoVA steel?
Typical inspections include:
Chemical composition analysis
Mechanical testing
Ultrasonic testing (UT)
Hardness testing
Metallographic examination
Contact Us
Looking for 2Cr12MoVA Alloy Steel Plates, Bars, or Forgings?
We provide:
Factory-direct pricing
Custom machining services
Fast delivery for global projects
Technical support for power plant applications
👉 Contact us today for price, datasheet, and project solutions.
+8615769214734
office@dongmjd.com
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