3Cr2W8V is a hot work die steel commonly used in the manufacturing of molds for die-casting applications. It is supplied by the No. 5 Steel Mill as round steel with zero cutting, suitable for distribution and custom orders. For more information or to place an order, please contact us at 0510-85360327.
This material follows the GB/T 1299-2000 standard, with a uniform digital code A20502. The grade is 3Cr2W8V, and its chemical composition includes:
- Carbon (C): 0.30–0.40%
- Silicon (Si): ≤0.40%
- Manganese (Mn): ≤0.40%
- Chromium (Cr): 2.20–2.70%
- Tungsten (W): 7.50–9.00%
- Vanadium (V): 0.20–0.50%
- Phosphorus (P): ≤0.030%
- Sulfur (S): ≤0.030%
The steel is typically delivered in a normalized or annealed condition with a Brinell hardness of HBW10/3000 ≤ 255–207. For heat treatment, it is quenched at temperatures between 1075–1125°C using oil as the cooling medium.
3Cr2W8V is known for its high thermal conductivity, toughness, and excellent resistance to thermal fatigue. It contains significant amounts of carbide-forming elements like chromium, tungsten, and vanadium, which enhance its high-temperature strength and hardness. This makes it ideal for use in high-stress and high-temperature environments.
It is widely used in the production of molds for casting copper, aluminum, and magnesium alloys. Applications include cores, sprue bushings, splitting nails, embossing tools, hot shearing knives, forging dies, and flat forging machine punches.
For more details about the chemical composition and mechanical properties of 3Cr2W8V, visit [http://news.chinawj.com.cn](http://news.chinawj.com.cn).
Editor: Hardware Business Network Information Center
[Image: Chemical composition and mechanical properties of 3Cr2W8V](http://i.bosscdn.com/blog/12/15/30/915224.jpg)
Aluminum alloy sunshade window is a product that combines sunshade function with windows, with the following characteristics:
1. Structural design
Frame
Made of aluminum alloy profiles, aluminum alloy has high strength, light weight, corrosion resistance, and can ensure the stability of the window structure. Its profiles can be made into different shapes and sizes according to design requirements to meet the requirements of various building openings.
Sunshade part
Common sunshade methods include built-in sunshade blinds and external sunshades.
Built-in sunshade blinds are blinds installed between two layers of glass, and the amount of sunlight entering is controlled by adjusting the angle of the blinds. This method can effectively protect the blinds from the influence of the external environment, reduce the damage to the blinds by dust, rain, etc., and also enhance the overall aesthetics of the window.
External sunshades are sunshades installed on the outside of the window, and the position of the sunshade can be adjusted according to the angle of the sun. The sunshade effect of the external sunshade is more direct, and it can block more sunlight heat from entering the room, but it is necessary to consider its impact on the appearance of the building and its wind and rain protection performance.
2. Functional characteristics
Shading and heat insulation
Effectively block solar radiation heat from entering the room and reduce the energy consumption of indoor air conditioning. According to different shading forms and shading coefficients, it can block 50% - 80% or even more solar heat, which can significantly improve the thermal comfort of the room in summer.
Lighting adjustment
Built-in sunshade blinds or adjustable external sunshades can adjust the incident angle of sunlight and the amount of light entering the room as needed. For example, soft light can be allowed to enter the room in the morning or evening, while the sunlight is completely blocked when the sun is strong at noon, realizing flexible lighting control.
Privacy protection
When the built-in sunshade blinds are adjusted to the appropriate angle, the privacy of the room can be protected without affecting the lighting, which is especially practical for some low-rise buildings or rooms close to the street.
3. Applicable scenarios
Residential
Suitable for installation in bedrooms, living rooms and other rooms, which can not only meet the lighting and ventilation needs, but also effectively control sunlight and heat, and improve the comfort of living.
Commercial buildings
In offices, shopping malls and other places, aluminum alloy sunshade windows help reduce air conditioning energy consumption, and can flexibly adjust the lighting and shading effects according to different usage needs.
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