No, a typical gas stove cannot melt aluminum. Aluminum has a melting point of approximately 660.3 degrees Celsius (1220.54 degrees Fahrenheit), while most household gas stoves can reach temperatures of around 200 to 260 degrees Celsius (392 to 500 degrees Fahrenheit) on their highest settings.
The temperatures achieved by gas stoves are not nearly enough to melt aluminum, so there is no risk of melting the metal while cooking on a gas stove. Aluminum is commonly used in cookware and bakeware precisely because it has a relatively low melting point and excellent heat conductivity, making it suitable for various cooking purposes.