What material is the RPG-7 launch tube made from?

The RPG-7 launch tube is made from milled steel, which offers several advantages vital for its functionality and durability. Milled steel provides a high strength-to-weight ratio, essential for maintaining the structural integrity needed to withstand the pressures generated when firing the rocket-propelled grenades. This material can endure extreme conditions, reducing the risk of warping or failure during use in various environments.

Additionally, milled steel allows for precise engineering and manufacturing, ensuring that the launch tube can withstand the forces generated during the firing process while also providing a secure platform for the rocket. The robustness of steel also contributes to the overall reliability of the weapon system, making it effective in combat scenarios.

In contrast, the other materials listed would not provide the same level of performance and durability necessary for a weapon system subjected to such demanding circumstances. Aluminum, while lightweight, may not have the same level of strength as milled steel. Fiberglass and plastic composite materials, although lightweight and resistant to corrosion, generally do not provide the required structural integrity and safety necessary for the launch mechanism of weaponry like the RPG-7.