Tungsten needles are known for their high strength and hardness, which makes them one of the strongest materials used for making needles. The strength of tungsten needles is due to the strong metallic bonds between tungsten atoms. Tungsten has a high tensile strength of about 550 MPa, which is higher than most other materials commonly used for needles, such as stainless steel, titanium, and platinum. This high strength allows tungsten needles to withstand high stress and pressure without breaking or deforming. However, it is worth noting that the strength of tungsten needles can decrease at very high temperatures, which may cause deformation or failure of the needle.
