Why do tank gun barrels last only a few seconds? What is the reason?

In the barrel of a cannonball, gunpowder is ignited to generate tremendous chamber pressure. Without the enormous pressure, the initial velocity is not reached, and the initial velocity is not enough to penetrate the thick armor. A tank can serve for at least 10 years, but the barrel life is less than 10 seconds. The life of a tank's gun barrel during World War II was only about 2-3 seconds. With modern forging technology, the life of a tank barrel has increased from 7-8 seconds to less than 10 seconds.

We know that the body tube is an important part of the tank, the body tube life is one of the key indicators of the artillery, so the body tube life test is an important part of the tank life management, but also tanks must be assessed in the finalization of the test is an important element. We often say that the body tube life generally refers to? Body tube ballistic life? , means that when its ballistic performance falls below the permissible value specified in the tactical specifications, it can be judged that the body tube life is over.

So it does not mean that at this point the barrel has broken, cracked and other physical phenomena visible to the naked eye. Ever since tanks appeared on the battlefield, they have been regarded as one of the most important assault weapons in land warfare by countries all over the world. If you have the help of a tank in a certain battlefield, it will be much easier to capture the corresponding position. However, the stronger the tank, the stronger the related military weaponry developed for the tank will naturally be.

So now the main development direction of tanks around the world is how to ensure enough combat power while enhancing safety. In fact, the life of a tank is up to 30 years, but the life of the gun barrel is only about 8 seconds, is not alarmist. The value of tanks to the military is irreplaceable, almost every country with a military force will have their own tanks, even warlords in Africa have 1-2 tanks.

It also shows the importance of tanks for war. The body of the tank is made of special composite material, and its service life can basically be maintained at about 30 years. However, the barrels of the tanks are only made of special alloy steel, which results in a service life of only 8 seconds. However, it should be noted here that the barrel of the tank does not have to be replaced once. Having said that, many people think that the barrel takes a few seconds to fire. So, if a shell is fired, the barrel must be replaced once. But the 8 seconds referred to here is actually the amount of time the shell stays in the barrel when fired.