Spiral seam thermo-metal composite welded pipe

The utility model provides a spiral seam thermo-metal composite welded pipe, wherein an anti-corrosion alloy inner layer and a carbon steel outer layer are compounded and then spirally shaped and welded together to form the spiral seam thermo-metal composite welded pipe. The anti-corrosion alloy inner layer and the carbon steel outer layer are compounded together through the process of explosion and hot rolling. The inner layer is made from stainless steel plates of 316L, 304L and 2205, or titanium and titanium alloy plates, and the thickness of the inner layer is 1-2 mm. The outer layer is made from pipeline steel plates of X52, X60, X65 and X70. According to the technical scheme of the utility model, thermo-metal composite pipes of different diameters can be manufactured by composite rolled plates of a single width, and the application field of thermo-metal composite pipes is expanded. Meanwhile, the spiral seam thermo-metal composite welded pipe is simple in manufacturing process, and the industrialized mass production of the spiral seam thermo-metal composite welded pipe is also realized.