Pneumatic Fluorine Lined Control Valve Pneumatic fluorine lined control valve,fluorine lined control valve Pneumatic,Pneumatic Valve series Jiangsu Tanggong Automatic Control Equipment Co., Ltd. , https://www.tgcontrolequipment.com
Chemical composition and mechanical properties of 25Cr2Mo1VA
**Chemical Composition and Mechanical Properties of 25Cr2Mo1VA, Main Applications**
The **25Cr2Mo1VA** is a high-quality alloy steel specified under the **GB/T 3077-1999** standard. It is a medium-carbon heat-resistant steel known for its excellent strength and toughness. This material is particularly suitable for high-temperature applications due to its good performance at temperatures below 500°C. It exhibits no tendency for hot brittleness and has good hardenability and machinability. However, its cold deformation plasticity is moderate, and weldability is relatively poor.
**Chemical Composition (wt%)**
- Carbon (C): 0.22–0.29
- Silicon (Si): 0.17–0.37
- Manganese (Mn): 0.50–0.80
- Molybdenum (Mo): 0.90–1.10
- Chromium (Cr): 2.10–2.50
- Vanadium (V): 0.30–0.50
- Phosphorus (P): ≤0.035 (residual)
- Sulfur (S): ≤0.035 (residual)
- Copper (Cu): ≤0.30 (residual)
- Nickel (Ni): ≤0.30 (residual)
**Heat Treatment**
- Quenching temperature: 900°C
- Cooling medium: Oil
- Tempering temperature: 640°C
**Mechanical Properties**
- Tensile Strength (σb): ≥930 MPa
- Yield Strength (σs): ≥785 MPa
- Elongation (δ5): ≥14%
- Reduction of Area (ψ): ≥55%
- Impact Absorption Work (Aku2): ≥63 J
- Brinell Hardness (HBS100/3000): ≤241 (annealed or high-temperature tempered state)
**Main Features and Applications**
This steel is widely used in high-temperature environments, such as manufacturing nuts, bolts, studs, and fasteners that operate at temperatures up to 510°C. It is also commonly applied in turbine components like rotors, sleeves, main steam valves, and control valves. Additionally, it can be used as nitriding steel for parts like valve stems and gears. The material is typically used in a quenched and tempered condition or after normalization and high-temperature tempering.
For more information on materials and their properties, visit **[ChinaWJ.com.cn](http://news.chinawj.com.cn)**.
Editor: Hardware Business Network Information Center
[Image: Chemical composition and mechanical properties of 25Cr2Mo1VA](http://i.bosscdn.com/blog/11/29/57/868790.jpg)