Yes, strap clamps can be used for both pipes and tubes. Strap clamps are versatile fastening devices designed to secure cylindrical objects, making them suitable for both pipes and tubes. They consist of a flexible strap, often made of metal or durable plastic, that wraps around the object and is tightened to hold it in place. 
The primary difference between pipes and tubes lies in their intended use and dimensions. Pipes are typically used for transporting fluids and are measured by their internal diameter, while tubes are used in structural applications and are measured by their external diameter. Despite these differences, strap clamps can accommodate both due to their adjustable nature.
When selecting strap clamps for pipes and tubes, it is important to consider the material, size, and environmental conditions. Metal strap clamps, such as those made from stainless steel, offer high strength and corrosion resistance, making them suitable for harsh environments. Plastic strap clamps, on the other hand, are lightweight and resistant to certain chemicals, making them ideal for less demanding applications.
The size of the strap clamp should match the diameter of the pipe or tube to ensure a secure fit. Adjustable strap clamps can accommodate a range of diameters, providing flexibility for different applications. Additionally, the environmental conditions, such as temperature and exposure to chemicals, should be considered to select the appropriate material and design of the strap clamp.
In summary, strap clamps are suitable for securing both pipes and tubes due to their adjustable and versatile design. Proper selection based on material, size, and environmental conditions ensures effective and reliable use in various applications.