The strength of screws from different materials is different. Generally speaking, aluminum alloy screws are the weakest and titanium alloy screws are the strongest.
First, the screw strength characteristics of different materials
1. Aluminum alloy screw
The strength of aluminum alloy screw is weak, generally suitable for light load work occasions. Due to the characteristics of aluminum, aluminum alloy screws have good corrosion resistance and thermal conductivity, suitable for use in high temperature, humid environment.
2. Steel screws
Steel screws are one of the most common screw materials. Different strength grades of steel screws, their strength is also different. For example, steel screws with strength level of 8.8 have strong performance in tensile and shear strength. And the strength grade of 10.9 high strength screw, its strength is even higher than the elbow wheel steel.
3. Stainless steel screws
Compared with other screws, stainless steel screws have the characteristics of not easy to rust. Different stainless steel screws, their strength is also different.
4. Titanium alloy screw
Titanium alloy is a kind of high strength, low density material, titanium alloy screw strength is higher. They are often used in high intensity demanding occasions, such as aviation, aerospace, medical and other fields. However, due to the high cost of titanium alloy materials, maintenance is also more difficult.
Second, the choice of screw material suggestions
The choice of screw material needs to consider a variety of factors, such as the occasion, load status, installation mode, etc. Here are some suggestions for choosing screw materials:
1. For general light load applications, aluminum screws can be used when corrosion and high temperature resistance characteristics are not required.
2. For applications requiring moderate strength, ordinary steel screws can be selected.
3. Stainless steel screws can be selected for high temperature applications where corrosion resistance is required or the base temperature is higher than 200℃.
4. For applications requiring high strength materials, titanium screws can be selected.
Considering the cost, material strength, load and other factors, the choice of screw material needs to be comprehensively considered and selected according to the actual situation.
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