At room temperature, the hardness of titanium alloy is about 33 to 35HV, and after heating, it can reach about 250 to 350HV. If some coating is done on the surface of titanium alloy, the hardness is about 68HV. Strength is much higher than in stainless steel.
1. Titanium alloy is not hard, it is just strong, not even strong, just stronger than strength.
2. If we want to know the hardness of titanium alloy, we should first look at the density of titanium alloy, because the density will affect the hardness. For example, when the density is 4.5g/m, the hardness is not as high as that of steel, which is about 240HV. Titanium alloy is widely used in aircraft parts manufacturing because of its good stability.
3. Titanium alloy can complete some lightweight weight reduction tasks. But if the strength of the same volume is compared, steel is still better, for example, the car A-pillar uses 900MPa or higher strength thermoforming steel to ensure the safety of the cab. You don't want to use titanium instead.
It is widely used in various fields because of its high strength, good corrosion resistance, and high heat resistance. Titanium alloys are considered the most difficult metal to stretch because of their strength.
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