English
中文简体The tensile strength and yield strength of stainless steel decrease as temperature increases. For example, the tensile strength of 304 stainless steel is 520MPa at room temperature, but it drops to about 340MPa at 500°C. Although 17-4PH SS and 304 stainless steel have different compositions, they are also stainless steels and may experience similar strength reductions at high temperatures. When a pistol buffer is in a high temperature environment, its ability to withstand external forces will be weakened, which may cause the buffer to deform or damage during shooting, affecting the buffering effect and the normal use of the gun.
The resistivity of stainless steel increases significantly with increasing temperature. Although Stainless Steel Pistol Buffers do not rely primarily on resistance properties to work, changes in resistivity may affect the performance of electronic components related to the buffer and indirectly affect the overall performance of the buffer.
At low temperatures, atomic vibrations weaken, electrons and atoms collide less, and the resistivity of stainless steel decreases. However, for Stainless Steel Pistol Buffers, what is more important is that low temperatures may reduce the toughness of stainless steel and make it more brittle. During the shooting process, the buffer needs to withstand a certain impact force. In a low temperature environment, its impact resistance may decrease, and it is easy to break and other faults.
In a corrosive environment such as saline water, the passivation film of stainless steel may be partially damaged, resulting in pitting corrosion. For example, in the case of high-speed flow of saline water, the corrosion of austenitic stainless steel is usually small, but if the water flow rate is insufficient or there are gaps, pitting corrosion is prone to occur. If the 17-4PH SS pistol buffer is in a humid and salty environment for a long time, pitting pits may appear on the surface. These pitting pits will become stress concentration points, reduce the strength and fatigue life of the buffer, and affect its buffering performance and safety of use.
Crevice corrosion is a form of localized corrosion that may occur in the gaps where the solution is stagnant or in the shielded surface. During the installation and use of the stainless steel pistol buffer, if there are gaps at the joints between metal and metal or metal and non-metal, crevice corrosion is prone to occur in a corrosive environment. Crevice corrosion will accelerate the damage of the buffer and reduce its performance and reliability.
High humidity environment will accelerate the corrosion process of stainless steel. Even though 17-4PH SS stainless steel has a certain degree of corrosion resistance, its surface may gradually corrode in a long-term high humidity environment, affecting the appearance and performance of the buffer. The corrosion products may change the surface roughness of the buffer, affecting its matching accuracy with other components, and thus affecting the buffering effect.
